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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Mar. 31, 2011
Registrant Name dei_EntityRegistrantName PIMCO FUNDS
Central Index Key dei_EntityCentralIndexKey 0000810893
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jul. 28, 2011
Document Effective Date dei_DocumentEffectiveDate Jul. 28, 2011
Prospectus Date rr_ProspectusDate Jul. 31, 2011
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal and California income tax. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax ("California Municipal Bonds"). California Municipal Bonds generally are issued by or on behalf of the State of California and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of California whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax. By concentrating its investments in California, the Fund will be subject to California State-Specific Risk.

The Fund may invest without limitation in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, a substantial portion of the Fund's distributions may not be exempt from federal income tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities . The average portfolio duration of this Fund normally varies from three to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are municipal bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and the indices of two similar funds. Absent any applicable fee waivers and/or expense limitations performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Class D shares (January 31, 2000), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Administrative Class of the Fund is not operational as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital California Intermediate Municipal Bond Index is an unmanaged index comprised of California Municipal Bond Issues having maturities of at least five years and less than ten years and consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. The index is made up of all investment grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper California Intermediate Municipal Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in municipal debt issues that are exempt from taxation in California, with dollar weighted maturities of five to ten years. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.07%. For the periods shown in the bar chart, the highest quarterly return was 7.72% in the Q3 2009, and the lowest quarterly return was -4.66% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Barclays Capital California Intermediate Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.28%
5 Years rr_AverageAnnualReturnYear05 4.87%
10 Years rr_AverageAnnualReturnYear10 4.92%
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Lipper California Intermediate Municipal Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.57%
5 Years rr_AverageAnnualReturnYear05 3.26%
10 Years rr_AverageAnnualReturnYear10 3.71%
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.445%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.695%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 71
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 222
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 387
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 865
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.775%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 79
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 248
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 431
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 960
1 Year rr_AverageAnnualReturnYear01 4.74%
5 Years rr_AverageAnnualReturnYear05 2.73%
10 Years rr_AverageAnnualReturnYear10 3.22%
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.445%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.445%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 143
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 249
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 561
Annual Return 2001 rr_AnnualReturn2001 6.04%
Annual Return 2002 rr_AnnualReturn2002 6.46%
Annual Return 2003 rr_AnnualReturn2003 3.17%
Annual Return 2004 rr_AnnualReturn2004 2.81%
Annual Return 2005 rr_AnnualReturn2005 2.12%
Annual Return 2006 rr_AnnualReturn2006 4.67%
Annual Return 2007 rr_AnnualReturn2007 0.63%
Annual Return 2008 rr_AnnualReturn2008 (7.77%)
Annual Return 2009 rr_AnnualReturn2009 14.05%
Annual Return 2010 rr_AnnualReturn2010 5.08%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.07%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.07%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.72% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.66% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.66%)
1 Year rr_AverageAnnualReturnYear01 5.08%
5 Years rr_AverageAnnualReturnYear05 3.09%
10 Years rr_AverageAnnualReturnYear10 3.60%
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.03% [84]
5 Years rr_AverageAnnualReturnYear05 3.00% [84]
10 Years rr_AverageAnnualReturnYear10 3.20% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.60% [84]
5 Years rr_AverageAnnualReturnYear05 3.14% [84]
10 Years rr_AverageAnnualReturnYear10 3.34% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO California Intermediate Municipal Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.545%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.545%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 175
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 305
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 683
1 Year rr_AverageAnnualReturnYear01 4.98%
5 Years rr_AverageAnnualReturnYear05 2.99%
10 Years rr_AverageAnnualReturnYear10 3.51%
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 64% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 64.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal and California income tax ("California Municipal Bonds"). California Municipal Bonds generally are issued by or on behalf of the State of California and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of California whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax. By concentrating its investments in California, the Fund will be subject to California-State Specific Risk.

The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is no t expected to exceed three years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The total return sought by the Fund consists of both income earned on the Fund's investments and capital appreciation. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated Caa or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are California Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, befo re and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital California 1 Year Municipal Bond Index is an unmanaged index comprised of California Municipal Bond Issues having a maturity of at least one year and less than two years. The Lipper California Short/Intermediate Municipal Debt Funds Average is a total return performance average of funds that invest primarily in municipal debt issues that are exempt from taxation in California, with dollar-weighted average maturities of one to five years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.79%. For the periods shown in the bar chart, the highest quarterly return was 1.99% in the Q3 2009, and the lowest quarterly return was -0.51% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Barclays Capital California 1 Year Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.08%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.32%
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Lipper California Short/Intermediate Municipal Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.00%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.84%
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.58%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 59
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 186
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 324
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 726
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 75
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 233
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 406
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 906
1 Year rr_AverageAnnualReturnYear01 0.79%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.52%
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.33%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 34
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 106
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 185
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 418
Annual Return 2007 rr_AnnualReturn2007 3.10%
Annual Return 2008 rr_AnnualReturn2008 2.63%
Annual Return 2009 rr_AnnualReturn2009 4.33%
Annual Return 2010 rr_AnnualReturn2010 1.20%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.79%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.79%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.99% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.99%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.51% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.51%)
1 Year rr_AverageAnnualReturnYear01 1.20%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.93%
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.18% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.88% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.29% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.84% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO California Short Duration Municipal Income Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.43%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
1 Year rr_AverageAnnualReturnYear01 1.10%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.83%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 43% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 43.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of convertible securities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Convertible securities, which are issued by companies of all sizes and market capitalizations, include, but are not limited to: corporate bonds, debentures, notes or preferred stocks and their hybrids that can be converted into (exchanged for) common stock or other securities, such as warrants or options, which provide an opportunity for equity participation. Convertible securities also include "synthetic" convertible securities. Synthetic convertible securities, which may be created by a third party or PIMCO Investment Management Company LLC ("PIMCO"), are instruments that combine (i) non-convertible fixed income securities or preferred stocks, which may be represented by derivative instruments and (ii) securities or i nstruments such as warrants or call options that together possess economic characteristics similar to a convertible security. The Fund may invest in securities of any market capitalization, and may from time to time invest a significant amount of its assets in securities of smaller companies.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 20% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. In addition, the Fund may invest in common stock or in other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U .S. public- or private-sector entities.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rat es, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Convertible Securities Risk: the risk that the market values of convertible securities tend to decline as interest rates increase and, conversely, to increase as interest rates decline. A convertible security's market value, however, tends to reflect the market price of the common stock of the issuing company when that stock price approaches or is greater than the convertible security's "conversion price." The value of a synthetic convertible security will respond differently to market fluctuations than a traditional convertible security because a synthetic convertible is composed of two or more separate securities or instruments, each with its own market value. If the value of the underlying common stock or the level of the index involved in the convertible component falls below the exercise price of the warrant or option, the warrant or option may lose all value

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market indices and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Administrative Class shares (August 1, 2000) and periods when Class D shares of the Fund were not operational (including February 1, 2003 through April 27, 2011), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and ot her expenses paid by that class of shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch All Convertibles Index is an unmanaged index market comprised of convertible bonds and preferred securities. The Lipper Convertible Securities Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in convertible bonds and/or convertible preferred stock.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.38%. For the periods shown in the bar chart, the highest quarterly return was 20.81% in the Q3 2009, and the lowest quarterly return was -20.37% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | BofA Merrill Lynch All Convertibles Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.77%
5 Years rr_AverageAnnualReturnYear05 5.71%
10 Years rr_AverageAnnualReturnYear10 4.97%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Lipper Convertible Securities Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.59%
5 Years rr_AverageAnnualReturnYear05 5.12%
10 Years rr_AverageAnnualReturnYear10 4.65%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [42]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 93
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 290
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 504
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,120
1 Year rr_AverageAnnualReturnYear01 17.60%
5 Years rr_AverageAnnualReturnYear05 6.08%
10 Years rr_AverageAnnualReturnYear10 4.30%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.06% [42]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 108
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 337
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 585
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,294
1 Year rr_AverageAnnualReturnYear01 17.47%
5 Years rr_AverageAnnualReturnYear05 5.93%
10 Years rr_AverageAnnualReturnYear10 4.17%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66% [42]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 211
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 368
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 822
Annual Return 2001 rr_AnnualReturn2001 (13.78%)
Annual Return 2002 rr_AnnualReturn2002 (7.26%)
Annual Return 2003 rr_AnnualReturn2003 31.95%
Annual Return 2004 rr_AnnualReturn2004 8.47%
Annual Return 2005 rr_AnnualReturn2005 0.55%
Annual Return 2006 rr_AnnualReturn2006 13.25%
Annual Return 2007 rr_AnnualReturn2007 7.65%
Annual Return 2008 rr_AnnualReturn2008 (34.74%)
Annual Return 2009 rr_AnnualReturn2009 45.02%
Annual Return 2010 rr_AnnualReturn2010 17.94%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.38%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.38%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 20.81% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.81%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -20.37% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.37%)
1 Year rr_AverageAnnualReturnYear01 17.94%
5 Years rr_AverageAnnualReturnYear05 6.36%
10 Years rr_AverageAnnualReturnYear10 4.59%
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.02% [84]
5 Years rr_AverageAnnualReturnYear05 5.21% [84]
10 Years rr_AverageAnnualReturnYear10 3.29% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.68% [84]
5 Years rr_AverageAnnualReturnYear05 4.83% [84]
10 Years rr_AverageAnnualReturnYear10 3.16% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Convertible Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76% [42]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
1 Year rr_AverageAnnualReturnYear01 17.89%
5 Years rr_AverageAnnualReturnYear05 6.26%
10 Years rr_AverageAnnualReturnYear10 4.49%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 95% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 95.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from three to eight years, based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in a diversified pool of corporate fixed income securities of varying maturities. The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 10% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may invest, without limitation, in fixed income securities and instruments that are economically tied to emerging market countries. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S.-dollar-denominated securities of foreign issuers.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital Global Credit Hedged USD Index. The Fund's secondary benchmark is an equally weighted blend of the following three indices: Barclays Capital Global Aggregate Credit Component, Hedged USD, BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index, Hedged USD and JPMorgan EMBI Global, Hedged USD. The Fund believes this self-blended index reflects the Fund's investment strategy more accurately than the Barclays Capital Global Credit Hedged USD Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Administrative Class shares (October 29, 2004), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Global Credit Hedged USD Index contains investment grade and high yield credit securities from the Multiverse represented in US Dollars on a hedged basis, (Multiverse is the merger of two groups: the Global Aggregate and the Global High Yield). One-third each- Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd: The benchmark is an equally weighted blend of the following three indices: Barclays Capital Global Aggregate-Credit Component Hedged USD, BofA Merrill Lynch Global High Yield, BB-B Rated, Constrained Index, JPMorgan EMBI Global. The Barclays Capital Global Aggregate Index Credit Component Hedged USD provides a broad-based measure of the global investment-grade fixed income markets. The BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index tracks the performance of below investment grade bonds of corporate issuers domiciled in countries having an investment grade foreign currency long term debt rating (based on a composite of Moody's, S&P, and Fitch). The index includes bonds denominated in U.S. Dollars, Canadian dollars, sterling, euro (or euro legacy currency), but excludes all multi-currency denominated bonds. Bonds must be rated below investment grade but at least B3 based on a composite of Moody's, S&P, and Fitch. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The index is rebalanced on the last calendar day of the month. The JPMorgan EMBI Global tracks total returns for U.S. dollar denominated debt instruments issued by emerging ma rket sovereign and quasi-sovereign entities, Brady bonds, loans, Eurobonds and local market instruments. This index only tracks the particular region or country. The Lipper Multi-Sector Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that seek current income by allocating assets among several different fixed income securities sectors (with no more than 65% in any one sector except for defensive purposes), including U.S. government and foreign governments, with a significant portion of assets in securities rated below investment grade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.20%. For the periods shown in the bar chart, the highest quarterly return was 12.97% in the Q2 2009, and the lowest quarterly return was -6.46% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2003)
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | 1/3 each-Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.04%
5 Years rr_AverageAnnualReturnYear05 7.16%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.92%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Lipper Multi-Sector Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
5 Years rr_AverageAnnualReturnYear05 6.19%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.76%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Barclays Capital Global Credit Hedged USD Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.00%
5 Years rr_AverageAnnualReturnYear05 5.49%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.69%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 102
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 552
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,225
1 Year rr_AverageAnnualReturnYear01 13.98%
5 Years rr_AverageAnnualReturnYear05 7.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.40%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
1 Year rr_AverageAnnualReturnYear01 13.81%
5 Years rr_AverageAnnualReturnYear05 7.41%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.22%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
Annual Return 2004 rr_AnnualReturn2004 9.39%
Annual Return 2005 rr_AnnualReturn2005 5.89%
Annual Return 2006 rr_AnnualReturn2006 7.62%
Annual Return 2007 rr_AnnualReturn2007 3.97%
Annual Return 2008 rr_AnnualReturn2008 (13.34%)
Annual Return 2009 rr_AnnualReturn2009 31.57%
Annual Return 2010 rr_AnnualReturn2010 14.26%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.20%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.20%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 12.97% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.97%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.46% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.46%)
1 Year rr_AverageAnnualReturnYear01 14.26%
5 Years rr_AverageAnnualReturnYear05 7.83%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.67%
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.97% [84]
5 Years rr_AverageAnnualReturnYear05 5.36% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.30% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.21% [84]
5 Years rr_AverageAnnualReturnYear05 5.21% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.05% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Diversified Income Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,049
1 Year rr_AverageAnnualReturnYear01 14.15%
5 Years rr_AverageAnnualReturnYear05 7.72%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.56%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 24.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund's investment objective is maximum total return, consistent with preservation of capital and prudent investment management. The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments denominated in currencies of countries with emerging securities markets, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in forwards or derivatives denominated in any currency, and forwards or derivatives denominated in any currency will be included under the 80% of assets policy noted in the prior sentence so long as the underlying asset of such forwards or derivatives is a Fixed Income Instrument denominated in the currency of an emerging market country. The Fund may, but is not requi red to, hedge its exposure to non-U.S. currencies. Assets not invested in instruments denominated in currencies of non-U.S. countries described above may be invested in other types of Fixed Income Instruments.

The Fund may invest without limitation in Fixed Income Instruments that are economically tied to emerging market countries. Pacific Investment Management Company LLC ("PIMCO") has broad discretion to identify countries that it considers to qualify as emerging markets. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security such as a derivative instrument, rather than investing directly in emerging market securities.

The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged), which as of June 30, 2011, was 4.29 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income and capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/ or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of the Class P shares (May 30, 2008), Administrative Class shares (October 16, 2007), and Class D shares (July 31, 2007), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/ or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past p erformance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged) is a comprehensive global local emerging markets index, and consists of regularly traded, liquid fixed-rate, domestic currency government bonds to which international investors can gain exposure. The Fund began operations on 12/29/06. Index comparisons began on 12/31/06.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.16%. For the periods shown in the bar chart, the highest quarterly return was 17.65% in the Q2 2009, and the lowest quarterly return was -6.70% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (12/29/2006)
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.11%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
1 Year rr_AverageAnnualReturnYear01 15.24%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.33%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,624
1 Year rr_AverageAnnualReturnYear01 15.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.14%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
Annual Return 2007 rr_AnnualReturn2007 12.31%
Annual Return 2008 rr_AnnualReturn2008 (10.70%)
Annual Return 2009 rr_AnnualReturn2009 29.23%
Annual Return 2010 rr_AnnualReturn2010 15.53%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.16%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.16%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 17.65% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.65%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.70% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.70%)
1 Year rr_AverageAnnualReturnYear01 15.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.60%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.54% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.50% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.01% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.20% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Local Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 102
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 552
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,225
1 Year rr_AverageAnnualReturnYear01 15.44%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.51%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 100% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 100.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to emerging market countries, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Such instruments may be denominated in non-U.S. currencies and the U.S. dollar. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and, under normal market conditions, is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

PIMCO has broad discretion to identify countries that it considers to qualify as emerging markets. The Fund emphasizes countries with relatively low gross national product per capita and with the potential for rapid economic growth. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and any other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security or a currency of an emerging market country, such as a derivative instrument, rather than investing directly in emerging market securities or currencies.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rat es, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Class D shares (March 31, 2000), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessari ly an indication of how the Fund will perform in the future.

The JPMorgan Emerging Markets Bond Index (EMBI) Global tracks total returns for United States Dollar denominated debt instruments issued by emerging market sovereign and quasi-sovereign entities: Brady bonds, loans and Eurobonds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance .
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.15%. For the periods shown in the bar chart, the highest quarterly return was 17.02% in the Q4 2002, and the lowest quarterly return was -7.38% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | JPMorgan Emerging Markets Bond Index (EMBI) Global (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.04%
5 Years rr_AverageAnnualReturnYear05 8.36%
10 Years rr_AverageAnnualReturnYear10 10.29%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.83%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.08%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 110
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 343
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 595
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,317
1 Year rr_AverageAnnualReturnYear01 12.78%
5 Years rr_AverageAnnualReturnYear05 7.76%
10 Years rr_AverageAnnualReturnYear10 13.18%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 127
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,511
1 Year rr_AverageAnnualReturnYear01 12.59%
5 Years rr_AverageAnnualReturnYear05 7.60%
10 Years rr_AverageAnnualReturnYear10 13.03%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.83%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.83%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 85
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 265
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 460
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,025
Annual Return 2001 rr_AnnualReturn2001 28.17%
Annual Return 2002 rr_AnnualReturn2002 12.83%
Annual Return 2003 rr_AnnualReturn2003 32.54%
Annual Return 2004 rr_AnnualReturn2004 12.23%
Annual Return 2005 rr_AnnualReturn2005 11.73%
Annual Return 2006 rr_AnnualReturn2006 9.77%
Annual Return 2007 rr_AnnualReturn2007 5.61%
Annual Return 2008 rr_AnnualReturn2008 (13.99%)
Annual Return 2009 rr_AnnualReturn2009 30.54%
Annual Return 2010 rr_AnnualReturn2010 13.06%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.15%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.15%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 17.02% in the Q4 2002
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.02%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -7.38% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.38%)
1 Year rr_AverageAnnualReturnYear01 13.06%
5 Years rr_AverageAnnualReturnYear05 8.04%
10 Years rr_AverageAnnualReturnYear10 13.47%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.11% [84]
5 Years rr_AverageAnnualReturnYear05 5.36% [84]
10 Years rr_AverageAnnualReturnYear10 9.81% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.44% [84]
5 Years rr_AverageAnnualReturnYear05 5.31% [84]
10 Years rr_AverageAnnualReturnYear10 9.51% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.93%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.93%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 95
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 296
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 515
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,143
1 Year rr_AverageAnnualReturnYear01 12.95%
5 Years rr_AverageAnnualReturnYear05 7.92%
10 Years rr_AverageAnnualReturnYear10 13.35%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 135% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 135.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of corporate Fixed Income Instruments that are economically tied to emerging market countries, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Such instruments may be denominated in non-U.S. currencies and the U.S. dollar. The average portfolio duration of the Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and, under normal market conditions, is not expected to exceed ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

PIMCO has broad discretion to identify countries that it considers to qualify as emerging markets. The Fund emphasizes countries with relatively low gross national product per capita and with the potential for rapid economic growth. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments, and any other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security or a currency of an emerging market country, such as a derivative instrument, rather than investing directly in emerging market securities or currencies.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 20% of its total assets in securities rated below Ba by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rat es, foreign currency appreciation, or improving credit fundamentals for a particular sector or security.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the JPMorgan Corporate Emerging Markets Bond Index Diversified (CEMBI). The index is a uniquely weighted version of the CEMBI index. It limits the weights of those index countries with larger corporate debt stocks by only including a specified portion of these countries' eligible current face amounts of debt outstanding. The CEMBI Diversified results in well-distributed, more balanced weightings for countries included in the index. The countries covered in the CEMBI Diversified are identical to those covered by the CEMBI.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.79%. For the periods shown in the bar chart, the highest quarterly return was 6.04% in the Q3 2010, and the lowest quarterly return was 0.17% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/1/2009)
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | JPMorgan Corporate Emerging Markets Bond Index Diversified (CEMBI) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.50%
Fund Inception** rr_AverageAnnualReturnSinceInception 18.66%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 153
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 474
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 818
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,791
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 127
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,511
Annual Return 2010 rr_AnnualReturn2010 12.40%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.79%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.79%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.04% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.04%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 0.17% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 0.17%
1 Year rr_AverageAnnualReturnYear01 12.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 16.71%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.69% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 13.91% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.08% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 12.64% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Corporate Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,624
1 Year rr_AverageAnnualReturnYear01 12.39%
Fund Inception** rr_AverageAnnualReturnSinceInception 16.70%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 31% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 31.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in currencies of, or in Fixed Income Instruments denominated in the currencies of, emerging market countries. The Fund's investments in currencies or Fixed Income Instruments may be represented by forwards or derivatives such as options, futures contracts or swap agreements. The Fund may, but is not required to, hedge its exposure to non-U.S. currencies. Assets not invested in currencies or instruments denominated in currencies of emerging market countries may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

The Fund may invest in the currencies and Fixed Income Instruments of emerging market countries. Pacific Investment Management Company LLC ("PIMCO") has broad discretion to identify countries that it considers to qualify as emerging markets. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security or a currency of an emerging market, such as a derivative instrument, rather than investing directly in emerging market securities or currencies.

The average portfolio duration of this Fund varies based on PIMCO's forecast for interest rates and, under normal market conditions, is not expected to exceed two years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income and capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Administrative Class shares (September 30, 2006), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan Emerging Local Markets Index Plus (Unhedged) tracks total returns for local-currency-denominated money market instruments in 23 emerging markets countries with at least US$10 billion of external trade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.33%. For the periods shown in the bar chart, the highest quarterly return was 15.85% in the Q2 2009, and the lowest quarterly return was -11.75% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (5/31/2005)
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | JPMorgan Emerging Local Markets Index Plus (Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.68%
5 Years rr_AverageAnnualReturnYear05 8.14%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.09%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11% [43]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 113
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 353
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 612
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,352
1 Year rr_AverageAnnualReturnYear01 7.63%
5 Years rr_AverageAnnualReturnYear05 7.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.05%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.26% [43]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 400
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 692
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,523
1 Year rr_AverageAnnualReturnYear01 7.47%
5 Years rr_AverageAnnualReturnYear05 6.85%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.88%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86% [43]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 477
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,061
Annual Return 2006 rr_AnnualReturn2006 11.94%
Annual Return 2007 rr_AnnualReturn2007 13.20%
Annual Return 2008 rr_AnnualReturn2008 (14.56%)
Annual Return 2009 rr_AnnualReturn2009 21.61%
Annual Return 2010 rr_AnnualReturn2010 7.90%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.33%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.33%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 15.85% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 15.85%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -11.75% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.75%)
1 Year rr_AverageAnnualReturnYear01 7.90%
5 Years rr_AverageAnnualReturnYear05 7.28%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.32%
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.16% [84]
5 Years rr_AverageAnnualReturnYear05 5.08% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.22% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.12% [84]
5 Years rr_AverageAnnualReturnYear05 4.97% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.07% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Emerging Markets Currency Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.95%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.96% [43]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 98
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 306
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 531
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,178
1 Year rr_AverageAnnualReturnYear01 7.79%
5 Years rr_AverageAnnualReturnYear05 7.17%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.22%
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 412% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 412.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the Citigroup STRIPS Index, 20+ Year Sub-Index, which as of June 30, 2011 was 29.27 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (September 11, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Citigroup STRIPS Index, 20+ Year Sub-Index represents a composition of outstanding Treasury Bond and Notes with a maturity of at least twenty years. The index is rebalanced each month in accordance with underlying Treasury figures and profiles provided as of the previous month-end. The included STRIPS are derived only from bonds in the Citigroup U.S. Treasury Bond Index, which include coupon strips with less than one year remaining to maturity. The Lipper Corporate Debt Funds BBB-Rated Funds Average consists of funds that invest at least 65% of their assets in corporate and government debt issues rated in the top four grades.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.97%. For the periods shown in the bar chart, the highest quarterly return was 43.08% in the Q4 2008, and the lowest quarterly return was -15.18% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Lipper Corporate Debt Funds BBB-Rated Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.22%
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Citigroup STRIPS Index, 20+ Year Sub-Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.08%
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.51% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 164
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 285
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 640
Annual Return 2007 rr_AnnualReturn2007 10.79%
Annual Return 2008 rr_AnnualReturn2008 49.19%
Annual Return 2009 rr_AnnualReturn2009 (28.19%)
Annual Return 2010 rr_AnnualReturn2010 12.85%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.97%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.97%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 43.08% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 43.08%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -15.18% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.18%)
1 Year rr_AverageAnnualReturnYear01 12.85%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.64%
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.84% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.29% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.34% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.09% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Extended Duration Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.61% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 62
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 195
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 340
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 762
1 Year rr_AverageAnnualReturnYear01 12.74%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.54%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current yield consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 40% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 40.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of investments that effectively enable the Fund to achieve a floating rate of income, including, but not limited to, variable and floating-rate Fixed Income Instruments, Fixed Income Instruments with durations of less than or equal to one year, and fixed-rate Fixed Income Instruments with respect to which the Fund has entered into derivative instruments to effectively convert the fixed-rate interest payments into floating-rate interest payments, each of which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and will normally not exceed one year. Duration is used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may also invest in other Fixed Income Instruments. Variable and floating-rate Fixed Income Instruments generally pay interest at rates that adjust whenever a specified interest rate changes and/or reset on predetermined dates (such as the last day of a month or calendar quarter).

The Fund may invest all of its assets in high yield securities ("junk bonds") rated at least Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality, subject to a maximum of 10% of its total assets in securities rated below B by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy-backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Administrative Class shares (December 31, 2005), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past perfo rmance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The 3 Month USD LIBOR (London Intrabank Offered Rate) Index is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The benchmark is an equally weighted blend of the following three indices at constant 0.25 year duration: Barclays Capital Global Aggregate Credit component, BofA Merrill Lynch Global High Yield, BB-B Rated Constrained Index, JPMorgan EMBI Global; all USD hedged. The Barclays Capital Global Aggregate Credit component provides a broad-based measure of the global investment-grade fixed income markets. The BofA Merrill Lynch Global High Yield, BB-B Rated Constrained Index tracks the performance of below investment grade bonds of corporate issuers domiciled in countries having an investment grade foreign currency long term debt rating (based on a composite of Moody's, S&P, and Fit ch). The index includes bonds denominated in U.S. Dollars, Canadian dollars, sterling, euro (or euro legacy currency), but excludes all multi-currency denominated bonds. Bonds must be rated below investment grade but at least B3 based on a composite of Moody's, S&P, and Fitch. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The index is re-balanced on the last calendar day of the month. The JPMorgan EMBI Global tracks total returns for U.S. dollar-denominated debt instruments issued by emerging market sovereign and quasi-sovereign entities, Brady bonds, loans, Eurobonds and local market instruments. This index only tracks the particular region or country. The Lipp er Loan Participation Funds Average is a total performance average of funds tracked by Lipper, Inc. that invest primarily in participation interests in collateralized senior corporate loans that have floating or variable rates. The Fund began operations on 07/30/04. Index comparisons began on 07/31/04.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.36%. For the periods shown in the bar chart, the highest quarterly return was 13.55% in the Q2 2009, and the lowest quarterly return was -15.37% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/30/2004)
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Lipper Loan Participation Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.35%
5 Years rr_AverageAnnualReturnYear05 3.52%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.83%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Blend of the following three indices at constant .25 year duration: 1/3 each-Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.99%
5 Years rr_AverageAnnualReturnYear05 1.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.30%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | 3-Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
5 Years rr_AverageAnnualReturnYear05 3.07%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.03%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
1 Year rr_AverageAnnualReturnYear01 6.73%
5 Years rr_AverageAnnualReturnYear05 3.31%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.97%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,166
1 Year rr_AverageAnnualReturnYear01 6.57%
5 Years rr_AverageAnnualReturnYear05 3.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.80%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
Annual Return 2005 rr_AnnualReturn2005 5.40%
Annual Return 2006 rr_AnnualReturn2006 9.04%
Annual Return 2007 rr_AnnualReturn2007 0.59%
Annual Return 2008 rr_AnnualReturn2008 (24.71%)
Annual Return 2009 rr_AnnualReturn2009 34.80%
Annual Return 2010 rr_AnnualReturn2010 6.99%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.36%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.36%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.55% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.55%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -15.37% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.37%)
1 Year rr_AverageAnnualReturnYear01 6.99%
5 Years rr_AverageAnnualReturnYear05 3.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.22%
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.56% [84]
5 Years rr_AverageAnnualReturnYear05 1.49% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.27% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.51% [84]
5 Years rr_AverageAnnualReturnYear05 1.81% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.45% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Floating Income Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 208
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 362
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 810
1 Year rr_AverageAnnualReturnYear01 6.89%
5 Years rr_AverageAnnualReturnYear05 3.45%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.11%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 236% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 427.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to foreign (non-U.S.) countries, representing at least three foreign countries, which may be represented by forwards or derivatives such as options, future contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global ex-US Index Hedged in USD, which as of June 30, 2011 was 7.09 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total a ssets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy-backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessarily an ind ication of how the Fund will perform in the future.

The JPMorgan GBI Global ex-US Index Hedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars of major non-U.S. bond markets. The Lipper International Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, excluding the United States, except in periods of market weakness.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.41%. For the periods shown in the bar chart, the highest quarterly return was 8.71% in the Q3 2009, and the lowest quarterly return was -2.73% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | JPMorgan GBI Global Index Hedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.44%
5 Years rr_AverageAnnualReturnYear05 4.35%
10 Years rr_AverageAnnualReturnYear10 4.75%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Lipper International Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.59%
5 Years rr_AverageAnnualReturnYear05 6.51%
10 Years rr_AverageAnnualReturnYear10 6.59%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 8.91%
5 Years rr_AverageAnnualReturnYear05 6.04%
10 Years rr_AverageAnnualReturnYear10 6.15%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 8.75%
5 Years rr_AverageAnnualReturnYear05 5.85%
10 Years rr_AverageAnnualReturnYear10 5.94%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 8.96%
Annual Return 2002 rr_AnnualReturn2002 7.67%
Annual Return 2003 rr_AnnualReturn2003 3.56%
Annual Return 2004 rr_AnnualReturn2004 6.65%
Annual Return 2005 rr_AnnualReturn2005 5.72%
Annual Return 2006 rr_AnnualReturn2006 2.94%
Annual Return 2007 rr_AnnualReturn2007 3.97%
Annual Return 2008 rr_AnnualReturn2008 (2.40%)
Annual Return 2009 rr_AnnualReturn2009 19.01%
Annual Return 2010 rr_AnnualReturn2010 9.18%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.65%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.65%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 14.01% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 14.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -10.19% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.19%)
1 Year rr_AverageAnnualReturnYear01 9.18%
5 Years rr_AverageAnnualReturnYear05 6.30%
10 Years rr_AverageAnnualReturnYear10 6.40%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.59% [84]
5 Years rr_AverageAnnualReturnYear05 4.17% [84]
10 Years rr_AverageAnnualReturnYear10 4.31% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.09% [84]
5 Years rr_AverageAnnualReturnYear05 4.13% [84]
10 Years rr_AverageAnnualReturnYear10 4.26% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 9.07%
5 Years rr_AverageAnnualReturnYear05 6.20%
10 Years rr_AverageAnnualReturnYear10 6.30%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 427% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 236.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to foreign (non-U.S.) countries, representing at least three foreign countries, which may be represented by forwards or derivatives such as options, future contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global ex-US FX NY Index Unhedged in USD, which as of June 30, 2011 was 7.09 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equiva lently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch") or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Administrative Class shares (February 28, 2006), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performa nce, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global ex-US FX NY Index Unhedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars on an unhedged basis of major non-U.S. bond markets. The Lipper International Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, excluding the United States, except in periods of market weakness.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.65%. For the periods shown in the bar chart, the highest quarterly return was 14.01% in the Q3 2009, and the lowest quarterly return was -10.19% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (4/30/2004)
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | JPMorgan GBI Global ex-US FX NY Index Unhedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.76%
5 Years rr_AverageAnnualReturnYear05 7.79%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.56%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Lipper International Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.59%
5 Years rr_AverageAnnualReturnYear05 6.51%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.70%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 12.19%
5 Years rr_AverageAnnualReturnYear05 8.78%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.15%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 12.02%
5 Years rr_AverageAnnualReturnYear05 8.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.96%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2005 rr_AnnualReturn2005 (9.06%)
Annual Return 2006 rr_AnnualReturn2006 6.64%
Annual Return 2007 rr_AnnualReturn2007 10.46%
Annual Return 2008 rr_AnnualReturn2008 (4.04%)
Annual Return 2009 rr_AnnualReturn2009 21.33%
Annual Return 2010 rr_AnnualReturn2010 12.47%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.41%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.41%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 8.71% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.71%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.73% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.73%)
1 Year rr_AverageAnnualReturnYear01 12.47%
5 Years rr_AverageAnnualReturnYear05 9.05%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.42%
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.96% [84]
5 Years rr_AverageAnnualReturnYear05 6.40% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.18% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.07% [84]
5 Years rr_AverageAnnualReturnYear05 6.14% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.00% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Foreign Bond Fund (Unhedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 12.36%
5 Years rr_AverageAnnualReturnYear05 8.95%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.32%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmarks, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 218% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 218.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to at least three countries (one of which may be the United States), which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to, relative interest rates, exchange rates, monetary and fiscal policies, and trade and current account balances. The Fund may invest without limitation in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may also invest up to 10% of its total assets in preferred stocks. In addition, the Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's R ating Services ("S&P") or Fitch, Inc. ("Fitch"),or, if unrated, determined by PIMCO to be of comparable quality. The average portfolio duration of this Fund varies based on PIMCO's forecast for interest rates and, under normal market conditions, is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation or improving credit fundamentals for a parti cular sector or security.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable and dollar denominated. The index covers the U.S. investment-grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis. The Fund's secondary benchmark, the PIMCO Global Advantage Bond Index ("GLADI") (NY Close), is a diversified bond index intended to provide a better representation of the fixed income universe through its wide coverage of fixed income instruments and sectors--from developed to emerging markets, nominal to real assets, and cash to derivative instruments. GLADI employs a unique GDP-weighting methodology that puts emphasis on rapidly developing markets, making the index forward-looking in nature. This contrasts with traditional market capitalization-weighted indices, which emphasize past debt issuance and are therefore backward-looking. GDP-weighting also tends to lead to counter-cyclical rebalancing--as bond prices tend to be inversely related to GDP growth rates--and avoids some of the disadvantages of traditional market-cap weighted indices, such as allocating too heavily toward overpriced securities, government debt, and large debt issuers. The Fund believes that the secondary benchmark reflects the Fund's investment strategy more accurately than the Barclays Capital U.S. Aggregate Index. The Lipper Global Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, one of which may be the United States.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.30%. For the periods shown in the bar chart, the highest quarterly return was 8.01% in the Q3 2010, and the lowest quarterly return was -0.66% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (2/5/2009)
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.13%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | PIMCO Global Advantage Bond Index (GLADI) (NY Close) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.94%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Lipper Global Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.82%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,166
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 112
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 350
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 606
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,340
1 Year rr_AverageAnnualReturnYear01 7.17%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.71%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 224
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 871
Annual Return 2010 rr_AnnualReturn2010 7.59%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.30%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.30%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 8.01% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.66% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.66%)
1 Year rr_AverageAnnualReturnYear01 7.59%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.11%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.17% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 9.90% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.94% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 9.07% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Advantage Strategy Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
1 Year rr_AverageAnnualReturnYear01 7.48%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.00%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 232% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 310.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to at least three countries (one of which may be the United States), which may be represented by forwards or derivatives such as options, future contracts or swap agreements. Securities may be denominated in major foreign currencies or the U.S. dollar. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to, relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund normally invests at least 25% of its net assets in instruments that are economically tied to foreign (non-U.S.) countries. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global Hedged in USD, which as of June 30, 2011 was 6.52 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception of Class P shares (April 30, 2008) and Administrative Class shares (September 30, 2003), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance , before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global Hedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars on a hedged basis of major world bond markets. The Lipper Global Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, one of which may be the United States.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.42%. For the periods shown in the bar chart, the highest quarterly return was 7.52% in the Q3 2009, and the lowest quarterly return was -3.23% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | JPMorgan GBI Global Index Hedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.24%
5 Years rr_AverageAnnualReturnYear05 4.65%
10 Years rr_AverageAnnualReturnYear10 4.96%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Lipper Global Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.68%
5 Years rr_AverageAnnualReturnYear05 5.81%
10 Years rr_AverageAnnualReturnYear10 6.48%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
1 Year rr_AverageAnnualReturnYear01 8.27%
5 Years rr_AverageAnnualReturnYear05 5.49%
10 Years rr_AverageAnnualReturnYear10 6.08%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
Annual Return 2001 rr_AnnualReturn2001 10.83%
Annual Return 2002 rr_AnnualReturn2002 9.29%
Annual Return 2003 rr_AnnualReturn2003 3.93%
Annual Return 2004 rr_AnnualReturn2004 6.11%
Annual Return 2005 rr_AnnualReturn2005 4.98%
Annual Return 2006 rr_AnnualReturn2006 2.94%
Annual Return 2007 rr_AnnualReturn2007 4.99%
Annual Return 2008 rr_AnnualReturn2008 (2.35%)
Annual Return 2009 rr_AnnualReturn2009 15.30%
Annual Return 2010 rr_AnnualReturn2010 8.53%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.75%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.75%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.56% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.56%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -8.87% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.87%)
1 Year rr_AverageAnnualReturnYear01 8.53%
5 Years rr_AverageAnnualReturnYear05 5.72%
10 Years rr_AverageAnnualReturnYear10 6.36%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.10% [84]
5 Years rr_AverageAnnualReturnYear05 3.80% [84]
10 Years rr_AverageAnnualReturnYear10 4.34% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.80% [84]
5 Years rr_AverageAnnualReturnYear05 3.78% [84]
10 Years rr_AverageAnnualReturnYear10 4.28% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 208
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 362
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 810
1 Year rr_AverageAnnualReturnYear01 8.42%
5 Years rr_AverageAnnualReturnYear05 5.62%
10 Years rr_AverageAnnualReturnYear10 6.25%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 310% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 232.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to at least three countries (one of which may be the United States), which may be represented by forwards or derivatives such as options, future contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Securities may be denominated in major foreign currencies or the U.S. dollar.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to, relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund normally invests at least 25% of its net assets in instruments that are economically tied to foreign (non-U.S.) countries. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global FX New York Unhedged in USD, which as of June 30, 2011 was 6.52 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P (November 19, 2010) and Class D (July 31, 2008) shares performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class D shares. The Class P of the Fund has not commenced operations as of the dat e of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global FX NY Index Unhedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars on an unhedged basis of major world bond markets. The Lipper Global Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, one of which may be the United States.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.75%. For the periods shown in the bar chart, the highest quarterly return was 11.56% in the Q3 2009, and the lowest quarterly return was -8.87% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | JPMorgan GBI Global FX NY Index Unhedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.73%
5 Years rr_AverageAnnualReturnYear05 7.20%
10 Years rr_AverageAnnualReturnYear10 7.06%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Lipper Global Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.68%
5 Years rr_AverageAnnualReturnYear05 5.81%
10 Years rr_AverageAnnualReturnYear10 6.48%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
1 Year rr_AverageAnnualReturnYear01 10.96%
5 Years rr_AverageAnnualReturnYear05 7.70%
10 Years rr_AverageAnnualReturnYear10 8.05%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,166
1 Year rr_AverageAnnualReturnYear01 10.80%
5 Years rr_AverageAnnualReturnYear05 7.54%
10 Years rr_AverageAnnualReturnYear10 7.88%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
Annual Return 2001 rr_AnnualReturn2001 2.48%
Annual Return 2002 rr_AnnualReturn2002 21.33%
Annual Return 2003 rr_AnnualReturn2003 16.59%
Annual Return 2004 rr_AnnualReturn2004 11.57%
Annual Return 2005 rr_AnnualReturn2005 (6.36%)
Annual Return 2006 rr_AnnualReturn2006 5.85%
Annual Return 2007 rr_AnnualReturn2007 9.26%
Annual Return 2008 rr_AnnualReturn2008 (2.68%)
Annual Return 2009 rr_AnnualReturn2009 17.17%
Annual Return 2010 rr_AnnualReturn2010 11.24%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.42%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.42%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.52% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.52%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.23% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.23%)
1 Year rr_AverageAnnualReturnYear01 11.24%
5 Years rr_AverageAnnualReturnYear05 7.96%
10 Years rr_AverageAnnualReturnYear10 8.31%
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.41% [84]
5 Years rr_AverageAnnualReturnYear05 5.31% [84]
10 Years rr_AverageAnnualReturnYear10 5.85% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.35% [84]
5 Years rr_AverageAnnualReturnYear05 5.22% [84]
10 Years rr_AverageAnnualReturnYear10 5.72% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Global Bond Fund (Unhedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 208
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 362
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 810
1 Year rr_AverageAnnualReturnYear01 11.12%
5 Years rr_AverageAnnualReturnYear05 7.85%
10 Years rr_AverageAnnualReturnYear10 8.20%
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class M, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a portfolio of U.S. government securities. The Fund may invest in the following: U.S. Treasury bills, notes, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government (including its agencies and instrumentalities) and repurchase agreements secured by such obligations. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class M shares. The Administrative Class and Class D of the Fund have not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Citigroup 3-Month Treasury Bill Index. The index is an unmanaged index representing monthly return equivalents of yield averages of the last 3-Month Treasury Bill issues. The Lipper Institutional U.S. Government Money Markets Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest principally in financial instruments issued or guaranteed by the U.S. government, its agencies, or its instrumentalities with dollar-weighted average maturities of less than 90 days. These funds are commonly limited to 401(k) and pension participants and often require high minimum investments and have lower total expense ratios relative to other money market funds. They intend to keep constant net asset value.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class M*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.01%. For the periods shown in the bar chart, the highest quarterly return was 0.02% in the Q3 2010, and the lowest quarterly return was 0.01% in the Q1 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (1/27/2009)
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Lipper Institutional U.S. Government Money Markets Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.02%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.07%
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.14%
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Class M
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.18% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 18
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 58
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 101
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 230
Annual Return 2010 rr_AnnualReturn2010 0.06%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.01%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.01%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 0.02% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 0.02%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 0.01% in the Q1 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 0.01%
1 Year rr_AverageAnnualReturnYear01 0.06%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.15%
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Class M | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.04% [85]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.10% [85]
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Class M | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.04% [85]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.10% [85]
(PIMCO Bond Funds - Institutional) | (PIMCO Government Money Market Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.28%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.28% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 29
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 90
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 157
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 356
1 Year rr_AverageAnnualReturnYear01 0.04%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.11%
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,990% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1990.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of securities of varying maturities issued by the Government National Mortgage Association ("GNMA"), which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. The Fund is neither sponsored by nor affiliated with GNMA. The average portfolio duration of this Fund normally varies from one to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody's Investors Service, Inc. ("Moody's "), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), subject to a minimum rating of Baa by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The Fund may not invest in securities denominated in foreign currencies, but may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in U.S. dollar-denominated securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.

GNMA, a wholly-owned U.S. Government corporation, is authorized to guarantee, with the full faith and credit of the U.S. Government, the timely payment of principal and interest on securities issued by institutions approved by GNMA and backed by pools of mortgages insured by the Federal Housing Administration, or guaranteed by the Department of Veterans Affairs. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Class D shares (May 31, 2001) performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Administrative Class of the Fund has not commen ced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital GNMA Index is an unmanaged index covering mortgage-backed pass-through securities of the GNMA. The Lipper GNMA Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in mortgages/securities issued or guaranteed as to principal and interest by the U.S. government and certain federal agencies.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.68%. For the periods shown in the bar chart, the highest quarterly return was 4.65% in the Q3 2001, and the lowest quarterly return was -0.61% in the Q2 2004.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Barclays Capital GNMA Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.67%
5 Years rr_AverageAnnualReturnYear05 6.29%
10 Years rr_AverageAnnualReturnYear10 5.86%
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Lipper GNMA Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.16%
5 Years rr_AverageAnnualReturnYear05 5.86%
10 Years rr_AverageAnnualReturnYear10 5.26%
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76% [38]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [38]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 93
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 290
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 504
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,120
1 Year rr_AverageAnnualReturnYear01 7.53%
5 Years rr_AverageAnnualReturnYear05 6.66%
10 Years rr_AverageAnnualReturnYear10 6.26%
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.51% [38]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 164
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 285
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 640
Annual Return 2001 rr_AnnualReturn2001 12.09%
Annual Return 2002 rr_AnnualReturn2002 9.08%
Annual Return 2003 rr_AnnualReturn2003 3.34%
Annual Return 2004 rr_AnnualReturn2004 4.13%
Annual Return 2005 rr_AnnualReturn2005 3.21%
Annual Return 2006 rr_AnnualReturn2006 5.06%
Annual Return 2007 rr_AnnualReturn2007 7.46%
Annual Return 2008 rr_AnnualReturn2008 5.29%
Annual Return 2009 rr_AnnualReturn2009 9.75%
Annual Return 2010 rr_AnnualReturn2010 7.96%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.68%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.68%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 4.65% in the Q3 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.65%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.61% in the Q2 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.61%)
1 Year rr_AverageAnnualReturnYear01 7.96%
5 Years rr_AverageAnnualReturnYear05 7.09%
10 Years rr_AverageAnnualReturnYear10 6.70%
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.27% [84]
5 Years rr_AverageAnnualReturnYear05 4.87% [84]
10 Years rr_AverageAnnualReturnYear10 4.72% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.25% [84]
5 Years rr_AverageAnnualReturnYear05 4.77% [84]
10 Years rr_AverageAnnualReturnYear10 4.59% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO GNMA Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.61% [38]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 62
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 195
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 340
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 762
1 Year rr_AverageAnnualReturnYear01 7.86%
5 Years rr_AverageAnnualReturnYear05 6.98%
10 Years rr_AverageAnnualReturnYear10 6.59%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 36% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 36.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of high yield securities ("junk bonds"), which may be represented by forwards or derivatives such as options, futures contracts or swap agreements, rated below investment grade by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 20% of its total assets in securities rated Caa or below by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The remainder of the Fund's assets may be invested in investment grade Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within one year (plus or minus) of the duration of the BofA Merrill Lynch U.S. High Yield BB-B Rated Constrained Index, which as of June 30, 2011 was 4.65 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest up to 20% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch U.S. High Yield, BB-B Rated, Constrained Index tracks the performance of BB-B Rated U.S. Dollar-denominated corporate bonds publicly issued in the U.S. domestic market. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The Lipper High Current Yield Funds Average is a total return performance average of funds tracked by Lipper, Inc. that aim at high (relative) current yield from fixed income securities, have no quality or maturity restrictions, and tend to invest in lower grade debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.29%. For the periods shown in the bar chart, the highest quarterly return was 17.11% in the Q2 2009, and the lowest quarterly return was -13.07% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Lipper High Current Yield Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.28%
5 Years rr_AverageAnnualReturnYear05 6.62%
10 Years rr_AverageAnnualReturnYear10 7.03%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | BofA Merrill Lynch U.S. High Yield, BB-B Rated, Constrained Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.26%
5 Years rr_AverageAnnualReturnYear05 7.61%
10 Years rr_AverageAnnualReturnYear10 7.95%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
1 Year rr_AverageAnnualReturnYear01 13.96%
5 Years rr_AverageAnnualReturnYear05 7.09%
10 Years rr_AverageAnnualReturnYear10 7.45%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 13.84%
5 Years rr_AverageAnnualReturnYear05 6.95%
10 Years rr_AverageAnnualReturnYear10 7.30%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
Annual Return 2001 rr_AnnualReturn2001 4.99%
Annual Return 2002 rr_AnnualReturn2002 (0.85%)
Annual Return 2003 rr_AnnualReturn2003 23.70%
Annual Return 2004 rr_AnnualReturn2004 9.45%
Annual Return 2005 rr_AnnualReturn2005 4.63%
Annual Return 2006 rr_AnnualReturn2006 9.44%
Annual Return 2007 rr_AnnualReturn2007 3.73%
Annual Return 2008 rr_AnnualReturn2008 (23.69%)
Annual Return 2009 rr_AnnualReturn2009 44.05%
Annual Return 2010 rr_AnnualReturn2010 14.24%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.29%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.29%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 17.11% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.11%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -13.07% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (13.07%)
1 Year rr_AverageAnnualReturnYear01 14.24%
5 Years rr_AverageAnnualReturnYear05 7.35%
10 Years rr_AverageAnnualReturnYear10 7.71%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.21% [84]
5 Years rr_AverageAnnualReturnYear05 4.44% [84]
10 Years rr_AverageAnnualReturnYear10 4.75% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.17% [84]
5 Years rr_AverageAnnualReturnYear05 4.51% [84]
10 Years rr_AverageAnnualReturnYear10 4.77% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 208
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 362
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 810
1 Year rr_AverageAnnualReturnYear01 14.13%
5 Years rr_AverageAnnualReturnYear05 7.23%
10 Years rr_AverageAnnualReturnYear10 7.60%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax. Total return is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 25% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 25.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund intends to invest a portion of its assets in high yield Municipal Bonds and "private activity" bonds that are rated (at the time of purchase) below investment grade by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality (commonly known as "junk bonds"). The Fund may also invest, without limitation, in higher rated Municipal Bonds. The Fund may invest up to 30% of its assets in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, distributions derived from "private activity" bonds must be included in their AMT calculations, and as such a portion of the Fund's distribution may be subject to federal income tax. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds.

The average portfolio duration of this Fund normally varies from four to eleven years, based on PIMCO's forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on Municipal Bonds with the potential to offer high current income, typically looking for Municipal Bonds that can provide consistently attractive current yields or that are trading at competitive market prices. The "total return" sought by the Fund consists of both income earned on its investments and capital appreciation, if any, generally arising from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers t han a diversified fund.

The Fund may invest in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements, and invest in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. In addition, the Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back s or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, be fore and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's primary benchmark is a blend of 60% Barclays Capital High Yield Municipal Bond Index/40% Barclays Capital Municipal Bond Index. The Barclays Capital High Yield Municipal Bond Index is an unmanaged index made up of bonds that are non-investment grade, unrated, or rated below Ba1 by Moody's Investors Service with a remaining maturity of at least one year. The Barclays Capital Municipal Bond Index consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment-grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper High Yield Municipal Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that typically invests 50% or more of their assets in municipal debt issues rated BBB or less.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.72%. For the periods shown in the bar chart, the highest quarterly return was 13.16% in the Q3 2009, and the lowest quarterly return was -21.05% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2006)
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | 60% Barclays Capital High Yield Municipal Bond Index/40% Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.67%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Lipper High Yield Municipal Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.83%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.55%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [70]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 252
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 439
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 978
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [70]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 252
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 439
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 978
1 Year rr_AverageAnnualReturnYear01 4.62%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.05%)
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [70]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.54%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 55
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 173
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 302
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 677
Annual Return 2007 rr_AnnualReturn2007 (5.58%)
Annual Return 2008 rr_AnnualReturn2008 (27.84%)
Annual Return 2009 rr_AnnualReturn2009 31.55%
Annual Return 2010 rr_AnnualReturn2010 4.88%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.72%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.72%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.16% in the Q3 2009,
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.16%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -21.05% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.05%)
1 Year rr_AverageAnnualReturnYear01 4.88%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.24%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.78% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.12% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.02% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.89% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Municipal Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [70]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
1 Year rr_AverageAnnualReturnYear01 4.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.14%
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Spectrum Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 14% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 14.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of high yield securities ("junk bonds"), which may be represented by convertibles, warrants, forwards or derivatives such as swap agreements, rated below investment grade by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest, without limitation, in Fixed Income Instruments and other securities of any rating below investment grade as rated by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of the Fund normally varies within one year (plus or minus) of the duration of The Bank of America/Merrill Lynch Global High Yield, Constrained Index (the "Benchmark"), which as of June 30, 2011 was 4.65 years. Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest without limit in securities of foreign issuers or securities denominated in foreign currencies. The Fund may invest without limit in securities and instruments of corporate issuers economically tied to emerging market countries and may invest up to 10% of its total assets in sovereign debt issued by governments, their agencies or instrumentalities, or other government-related entities, that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (f rom non-U.S. dollar-denominated securities or currencies) to within 10% (plus or minus) of the Benchmark's foreign currency exposure, which as of June 30, 2011 was 0%.

The Fund may invest, without limitation, in derivative instruments, such as credit default swap agreements and total return swap agreements. The Fund may purchase or sell securities on a when issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 15% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The BofA Merrill Lynch Global High Yield Constrained (USD Hedged) Index contains all securities in The BofA Merrill Lynch Global High Yield Index but caps issuer exposure at 2%. Index constituents are capitalization-weighted, based on their current amount outstanding, provided the total allocation to an individual issuer does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face values of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. In the event there are fewer than 50 issuers in the Index, each is equally weighted and the face values of their respective bonds are increased or decreased on a pro-rata basis. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Spectrum Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 266
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 466
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,044
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Spectrum Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 298
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 521
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,162
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Spectrum Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 187
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 330
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 745
(PIMCO Bond Funds - Institutional) | (PIMCO High Yield Spectrum Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 219
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 385
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 866
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund's primary investment objective is to maximize current income. Long-term capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 181% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 181.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objectives by investing under normal circumstances at least 65% of its total assets in a multi-sector portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will seek to maintain a high and consistent level of dividend income by investing in a broad array of fixed income sectors and utilizing income efficient implementation strategies. The capital appreciation sought by the Fund generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.

The Fund will generally allocate its assets among several investment sectors, which may include, without limitation: (i) high yield securities ("junk bonds") and investment grade corporate bonds of issuers located in the United States and non-U.S. countries, including emerging market countries; (ii) fixed income securities issued by U.S. and non-U.S. governments (including emerging market governments), their agencies and instrumentalities; (iii) mortgage-related and other asset backed securities; and (iv) foreign currencies, including those of emerging market countries. However, the Fund is not required to gain exposure to any one investment sector, and the Fund's exposure to any one investment sector will vary over time. The average portfolio duration of this Fund normally varies from two to eight years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest up to 50% of its total assets in high yield securities rated below investment grade but rated at least Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch") or if unrated, determined by PIMCO to be of comparable quality (except such limitation shall not apply to the Fund's investments in mortgage-and asset-backed securities). In addition, the Fund may invest, without limitation, in securities denominated in foreign currencies. The Fund may invest up to 20% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 10% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows the performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Multi-Sector Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that seek current income by allocating assets among several different fixed income securities sectors (with no more than 65% in any one sector except for defensive purposes), including U.S. government and foreign governments, with a significant portion of assets in securities rated below investment grade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.54%. For the periods shown in the bar chart, the highest quarterly return was 9.61% in the Q3 2009, and the lowest quarterly return was -2.44% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/30/2007)
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.16%
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Lipper Multi-Sector Income Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.07%
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81% [45]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.76% [80]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 254
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 445
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 997
1 Year rr_AverageAnnualReturnYear01 20.18%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.68%
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86% [45]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.81% [80]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 269
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 472
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,056
1 Year rr_AverageAnnualReturnYear01 20.12%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.62%
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56% [45]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.51% [80]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 174
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 308
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 697
Annual Return 2008 rr_AnnualReturn2008 (5.46%)
Annual Return 2009 rr_AnnualReturn2009 19.20%
Annual Return 2010 rr_AnnualReturn2010 20.46%
1 Year rr_AverageAnnualReturnYear01 20.46%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.96%
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 17.54% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.37% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.22% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.94% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Income Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66% [45]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.61% [80]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 62
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 206
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 363
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 818
1 Year rr_AverageAnnualReturnYear01 20.35%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.85%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 325% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 325.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of investment grade corporate fixed income securities of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Assets not invested in investment grade corporate fixed income securities may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Credit Index, which as of June 30, 2011 was 6.43 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in inte rest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 15% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. Investment grade debt securities are rated Baa or higher by Moody's, or equivalenty rated by S&P or Fitch, or, if unrated determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 25% of its total assets in securities and instruments that are economically tied to emerging market coun tries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), Administrative Class shares (September 30, 2002) and Class D shares (July 30, 2004), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Credit Index is an unmanaged index comprised of publicly issued U.S. corporate and specified non-U.S. debentures and secured notes that meet the specified maturity, liquidity, and quality requirements. To qualify, bonds must be SEC-registered. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years. The Fund began operations on 4/28/00. Index comparisons began on 4/30/00.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.29%. For the periods shown in the bar chart, the highest quarterly return was 9.18% in the Q2 2009, and the lowest quarterly return was -5.26% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Barclays Capital U.S. Long Credit Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.47%
5 Years rr_AverageAnnualReturnYear05 5.98%
10 Years rr_AverageAnnualReturnYear10 6.54%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 11.44%
5 Years rr_AverageAnnualReturnYear05 8.30%
10 Years rr_AverageAnnualReturnYear10 7.94%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 11.28%
5 Years rr_AverageAnnualReturnYear05 8.15%
10 Years rr_AverageAnnualReturnYear10 7.77%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 9.07%
Annual Return 2002 rr_AnnualReturn2002 11.46%
Annual Return 2003 rr_AnnualReturn2003 10.38%
Annual Return 2004 rr_AnnualReturn2004 6.02%
Annual Return 2005 rr_AnnualReturn2005 2.53%
Annual Return 2006 rr_AnnualReturn2006 4.18%
Annual Return 2007 rr_AnnualReturn2007 7.15%
Annual Return 2008 rr_AnnualReturn2008 1.89%
Annual Return 2009 rr_AnnualReturn2009 18.74%
Annual Return 2010 rr_AnnualReturn2010 11.72%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.54%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.54%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 9.61% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 9.61%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.44% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.44%)
1 Year rr_AverageAnnualReturnYear01 11.72%
5 Years rr_AverageAnnualReturnYear05 8.58%
10 Years rr_AverageAnnualReturnYear10 8.21%
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.76% [84]
5 Years rr_AverageAnnualReturnYear05 5.77% [84]
10 Years rr_AverageAnnualReturnYear10 5.32% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.29% [84]
5 Years rr_AverageAnnualReturnYear05 5.76% [84]
10 Years rr_AverageAnnualReturnYear10 5.33% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Investment Grade Corporate Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 11.61%
5 Years rr_AverageAnnualReturnYear05 8.46%
10 Years rr_AverageAnnualReturnYear10 8.10%
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 240% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 240.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital Long Term Government/Credit Index, which as of June 30, 2011 was 13.22 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (September 11, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, befo re and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Long-Term Government/Credit Index is an unmanaged index of U.S. Government or Investment Grade Credit Securities having a maturity of 10 years or more. The Lipper Corporate Debt Funds BBB-Rated Funds Average consists of funds that invest at least 65% of their assets in corporate and government debt issues rated in the top four grades.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.92%. For the periods shown in the bar chart, the highest quarterly return was 16.10% in the Q4 2008, and the lowest quarterly return was -5.92% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Lipper Corporate Debt Funds BBB-Rated Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.22%
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Barclays Capital Long-Term Government/Credit Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.16%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.87%
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.51% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 164
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 285
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 640
Annual Return 2007 rr_AnnualReturn2007 7.83%
Annual Return 2008 rr_AnnualReturn2008 12.38%
Annual Return 2009 rr_AnnualReturn2009 5.62%
Annual Return 2010 rr_AnnualReturn2010 11.64%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.29%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.29%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 9.18% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 9.18%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -5.26% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.26%)
1 Year rr_AverageAnnualReturnYear01 11.64%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.23%
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.54% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.75% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.82% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.49% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long Duration Total Return Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.61% [44]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 62
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 195
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 340
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 762
1 Year rr_AverageAnnualReturnYear01 11.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.13%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 341% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 341.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Fund's benchmark, the Barclays Capital U.S. Long Credit Index, which as of June 30, 2011, was 12.47 years. In addition, the dollar-weighted average portfolio maturity of the Fund, under normal circumstances, is expected to be more than ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to change s in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 20% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 25% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. Consistent with other investment limitations, the Fund may invest, without limitation, in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class and Class P of the Fund have not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital U.S. Long Credit Index. The index includes both corporate and non-corporate sectors with maturities equal to or greater than 10 years. The corporate sectors are Industrial, Utility, and Finance, which include both U.S. and non-U.S. corporations. The non-corporate sectors are Sovereign, Supranational, Foreign Agency, and Foreign Local Government. It is not possible to invest directly in an unmanaged index. The Lipper General Bond Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.07%. For the periods shown in the bar chart, the highest quarterly return was 8.09% in the Q3 2010, and the lowest quarterly return was 2.78% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2009)
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Lipper General Bond Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.46%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Barclays Capital U.S. Long Credit Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.69%
Fund Inception** rr_AverageAnnualReturnSinceInception 20.63%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81% [48]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 259
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 450
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,003
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56% [48]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
Annual Return 2010 rr_AnnualReturn2010 13.13%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.92%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.92%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 16.10% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.10%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -5.92% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.92%)
1 Year rr_AverageAnnualReturnYear01 13.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 19.92%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.54% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 15.84% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.65% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 14.71% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term Credit Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66% [48]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 211
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 368
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 822
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 363% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 363.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of fixed income securities that are issued or guaranteed by the U.S. Government, its agencies or government-sponsored enterprises ("U.S. Government Securities"), which may be represented by forwards or derivatives such as options, future contracts or swap agreements. Assets not invested in U.S. Government Securities may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. While Pacific Investment Management Company LLC ("PIMCO") may invest in derivatives at any time it deems appropriate, it will generally do so when it believes that U.S. Government Securities are overvalued relative to derivative instruments. This Fund will normally have a minimum average portfolio duration of eight years. D uration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. In addition, the dollar-weighted average portfolio maturity of the Fund, under normal circumstances, is expected to be more than ten years.

The Fund's investments in Fixed Income Instruments are limited to those of investment grade U.S. dollar-denominated securities of U.S. issuers that are rated at least A by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch") or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may only invest up to 10% of its total assets in securities rated A by Moody's or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality and may only invest up to 25% of its total assets in securities rated Aa by Moody's, or equivalently rated by S&P or Fitch or, if unrated, determined by PIMCO to be of comparable quality.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The F und may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations if any, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Long-Term Treasury Index consists of U.S. Treasury issues with maturities of 10 or more years. The Lipper General U.S. Government Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in U.S. government and agency issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.11%. For the periods shown in the bar chart, the highest quarterly return was 13.59% in the Q4 2008, and the lowest quarterly return was -7.74% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Lipper General U.S. Government Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.86%
5 Years rr_AverageAnnualReturnYear05 4.75%
10 Years rr_AverageAnnualReturnYear10 4.65%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Barclays Capital Long-Term Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.38%
5 Years rr_AverageAnnualReturnYear05 5.73%
10 Years rr_AverageAnnualReturnYear10 6.57%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.475%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.735% [39]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 75
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 235
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 409
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 912
1 Year rr_AverageAnnualReturnYear01 11.81%
5 Years rr_AverageAnnualReturnYear05 6.35%
10 Years rr_AverageAnnualReturnYear10 7.00%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.475%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.485% [39]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 156
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 271
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 610
Annual Return 2001 rr_AnnualReturn2001 5.51%
Annual Return 2002 rr_AnnualReturn2002 18.87%
Annual Return 2003 rr_AnnualReturn2003 3.71%
Annual Return 2004 rr_AnnualReturn2004 7.25%
Annual Return 2005 rr_AnnualReturn2005 4.88%
Annual Return 2006 rr_AnnualReturn2006 1.16%
Annual Return 2007 rr_AnnualReturn2007 9.20%
Annual Return 2008 rr_AnnualReturn2008 13.60%
Annual Return 2009 rr_AnnualReturn2009 (2.08%)
Annual Return 2010 rr_AnnualReturn2010 12.09%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.07%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.07%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 8.09% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.09%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 2.78% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 2.78%
1 Year rr_AverageAnnualReturnYear01 12.09%
5 Years rr_AverageAnnualReturnYear05 6.61%
10 Years rr_AverageAnnualReturnYear10 7.26%
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.64% [84]
5 Years rr_AverageAnnualReturnYear05 4.09% [84]
10 Years rr_AverageAnnualReturnYear10 4.82% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.14% [84]
5 Years rr_AverageAnnualReturnYear05 4.22% [84]
10 Years rr_AverageAnnualReturnYear10 4.84% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Long-Term U.S. Government Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.575%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.585% [39]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 60
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 187
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 327
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 732
1 Year rr_AverageAnnualReturnYear01 11.98%
5 Years rr_AverageAnnualReturnYear05 6.51%
10 Years rr_AverageAnnualReturnYear10 7.16%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 461% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 461.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of "Fixed Income Instruments" of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from one to three years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch 1-3 Year U.S. Treasury Index is an unmanaged index comprised of U.S. Treasury securities, other than inflation protection securities and STRIPS, with at least $1 billion in outstanding face value and a remaining term to final maturity of at least one year and less than three years. Prior to September 25, 2009, the BofA Merrill Lynch Indices were known as the Merrill Lynch Indicies. The Lipper Short Investment Grade Debt Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.21%. For the periods shown in the bar chart, the highest quarterly return was 7.11% in the Q2 2009, and the lowest quarterly return was -3.79% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Lipper Short Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.96%
5 Years rr_AverageAnnualReturnYear05 3.76%
10 Years rr_AverageAnnualReturnYear10 3.72%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | BofA Merrill Lynch 1-3 Year U.S. Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.35%
5 Years rr_AverageAnnualReturnYear05 4.17%
10 Years rr_AverageAnnualReturnYear10 3.92%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.71%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 883
1 Year rr_AverageAnnualReturnYear01 4.70%
5 Years rr_AverageAnnualReturnYear05 5.37%
10 Years rr_AverageAnnualReturnYear10 4.79%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 4.66%
5 Years rr_AverageAnnualReturnYear05 5.31%
10 Years rr_AverageAnnualReturnYear10 4.73%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 47
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 148
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 258
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 579
Annual Return 2001 rr_AnnualReturn2001 8.00%
Annual Return 2002 rr_AnnualReturn2002 7.66%
Annual Return 2003 rr_AnnualReturn2003 2.97%
Annual Return 2004 rr_AnnualReturn2004 2.39%
Annual Return 2005 rr_AnnualReturn2005 1.55%
Annual Return 2006 rr_AnnualReturn2006 3.75%
Annual Return 2007 rr_AnnualReturn2007 7.92%
Annual Return 2008 rr_AnnualReturn2008 (1.28%)
Annual Return 2009 rr_AnnualReturn2009 13.36%
Annual Return 2010 rr_AnnualReturn2010 4.96%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.11%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.11%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.59% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.59%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -7.74% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.74%)
1 Year rr_AverageAnnualReturnYear01 4.96%
5 Years rr_AverageAnnualReturnYear05 5.63%
10 Years rr_AverageAnnualReturnYear10 5.05%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.62% [84]
5 Years rr_AverageAnnualReturnYear05 3.96% [84]
10 Years rr_AverageAnnualReturnYear10 3.42% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.29% [84]
5 Years rr_AverageAnnualReturnYear05 3.84% [84]
10 Years rr_AverageAnnualReturnYear10 3.35% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.56%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
1 Year rr_AverageAnnualReturnYear01 4.86%
5 Years rr_AverageAnnualReturnYear05 5.53%
10 Years rr_AverageAnnualReturnYear10 4.95%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 718% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 718.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from one to three years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest only in investment grade U.S. dollar denominated securities of U.S. issuers that are rated A or higher by Moody's Investors Service, Inc. (" Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The F und may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (December 31, 2009), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch 1-3 Year U.S. Treasury Index is an unmanaged index comprised of U.S. Treasury securities, other than inflation protection securities and STRIPS, with at least $1 billion in outstanding face value and a remaining term to final maturity of at least one year and less than three years. Prior to September 25, 2009, the BofA Merrill Lynch Indicies were known as the Merrill Lynch Indicies. The Lipper Short Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.10%. For the periods shown in the bar chart, the highest quarterly return was 4.88% in the Q2 2009, and the lowest quarterly return was -3.68% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Lipper Short Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.96%
5 Years rr_AverageAnnualReturnYear05 3.76%
10 Years rr_AverageAnnualReturnYear10 3.72%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | BofA Merrill Lynch 1-3 Year U.S. Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.35%
5 Years rr_AverageAnnualReturnYear05 4.17%
10 Years rr_AverageAnnualReturnYear10 3.92%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 3.31%
5 Years rr_AverageAnnualReturnYear05 4.59%
10 Years rr_AverageAnnualReturnYear10 4.20%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 8.11%
Annual Return 2002 rr_AnnualReturn2002 7.10%
Annual Return 2003 rr_AnnualReturn2003 1.84%
Annual Return 2004 rr_AnnualReturn2004 1.90%
Annual Return 2005 rr_AnnualReturn2005 1.56%
Annual Return 2006 rr_AnnualReturn2006 3.47%
Annual Return 2007 rr_AnnualReturn2007 7.30%
Annual Return 2008 rr_AnnualReturn2008 (0.06%)
Annual Return 2009 rr_AnnualReturn2009 10.26%
Annual Return 2010 rr_AnnualReturn2010 3.56%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.21%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.21%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.11% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.11%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.79% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.79%)
1 Year rr_AverageAnnualReturnYear01 3.56%
5 Years rr_AverageAnnualReturnYear05 4.85%
10 Years rr_AverageAnnualReturnYear10 4.46%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.41% [84]
5 Years rr_AverageAnnualReturnYear05 3.40% [84]
10 Years rr_AverageAnnualReturnYear10 2.91% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.42% [84]
5 Years rr_AverageAnnualReturnYear05 3.30% [84]
10 Years rr_AverageAnnualReturnYear10 2.89% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund II) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 3.46%
5 Years rr_AverageAnnualReturnYear05 4.74%
10 Years rr_AverageAnnualReturnYear10 4.35%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 460% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 460.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from one to three years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund will not invest in the securities of any issuer determined by PIMCO to be engaged principally in the provision of healthcare services, the manufacture of alcoholic beverages, tobacco products, pharmaceuticals or military equipment, the operation of gambling casinos or in the production or trade of pornographic materials. To the extent possible on the basis of information available to PIMCO, an issuer will be deemed to be principally engaged in an activity if it derives more than 10% of its gross revenues from such activities. In addition, the Fund will not invest directly in securities of issuers that are engaged in certain business activities in or with the Republic of the Sudan (a "Sudan-Related Issuer"). In analyzing whether an issuer is a Sudan- Related Issuer, PIMCO may rely upon, among other things, information from a list provided by an independent third party.

The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a par ticular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Administrative Class shares (March 19, 1999), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Administrative Class shares. Class P of the Fund has not commenced operations as of the date of thi s prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch 1-3 Year U.S. Treasury Index is an unmanaged index comprised of U.S. Treasury securities, other than inflation-protection securities and STRIPS, with at least $1 billion in outstanding face value and a remaining term to final maturity of at least one year and less than three years. Prior to September 25, 2009, the BofA Merrill Lynch Indicies were known as the Merrill Lynch Indicies. The Lipper Short Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.13%. For the periods shown in the bar chart, the highest quarterly return was 6.92% in the Q2 2009, and the lowest quarterly return was -4.38% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Lipper Short Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.96%
5 Years rr_AverageAnnualReturnYear05 3.76%
10 Years rr_AverageAnnualReturnYear10 3.72%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | BofA Merrill Lynch 1-3 Year U.S. Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.35%
5 Years rr_AverageAnnualReturnYear05 4.17%
10 Years rr_AverageAnnualReturnYear10 3.92%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 5.12%
5 Years rr_AverageAnnualReturnYear05 4.87%
10 Years rr_AverageAnnualReturnYear10 4.53%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 8.18%
Annual Return 2002 rr_AnnualReturn2002 8.04%
Annual Return 2003 rr_AnnualReturn2003 2.54%
Annual Return 2004 rr_AnnualReturn2004 2.12%
Annual Return 2005 rr_AnnualReturn2005 1.60%
Annual Return 2006 rr_AnnualReturn2006 3.75%
Annual Return 2007 rr_AnnualReturn2007 7.78%
Annual Return 2008 rr_AnnualReturn2008 (2.37%)
Annual Return 2009 rr_AnnualReturn2009 11.62%
Annual Return 2010 rr_AnnualReturn2010 5.38%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.10%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.10%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 4.88% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.88%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.68% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.68%)
1 Year rr_AverageAnnualReturnYear01 5.38%
5 Years rr_AverageAnnualReturnYear05 5.13%
10 Years rr_AverageAnnualReturnYear10 4.79%
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.49% [84]
5 Years rr_AverageAnnualReturnYear05 3.36% [84]
10 Years rr_AverageAnnualReturnYear10 3.11% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.61% [84]
5 Years rr_AverageAnnualReturnYear05 3.34% [84]
10 Years rr_AverageAnnualReturnYear10 3.10% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Low Duration Fund III) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 5.27%
5 Years rr_AverageAnnualReturnYear05 5.03%
10 Years rr_AverageAnnualReturnYear10 4.69%
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 325% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 325.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital Intermediate Government/Credit Index, which as of June 30, 2011 was 3.94 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (December 31, 2009), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, befor e and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Intermediate Government/Credit Index is an unmanaged index of U.S. Government or Investment Grade Credit Securities having a maturity of at least 1 year and less than 10 years. The Lipper Short Intermediate Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of one to five years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.87%. For the periods shown in the bar chart, the highest quarterly return was 6.70% in the Q4 2008, and the lowest quarterly return was -4.01% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Lipper Short Intermediate Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.76%
5 Years rr_AverageAnnualReturnYear05 4.64%
10 Years rr_AverageAnnualReturnYear10 4.56%
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Barclays Capital Intermediate Government/Credit Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.89%
5 Years rr_AverageAnnualReturnYear05 5.53%
10 Years rr_AverageAnnualReturnYear10 5.51%
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.71%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 883
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 47
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 148
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 258
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 579
Annual Return 2001 rr_AnnualReturn2001 9.40%
Annual Return 2002 rr_AnnualReturn2002 9.94%
Annual Return 2003 rr_AnnualReturn2003 5.44%
Annual Return 2004 rr_AnnualReturn2004 4.14%
Annual Return 2005 rr_AnnualReturn2005 1.40%
Annual Return 2006 rr_AnnualReturn2006 3.81%
Annual Return 2007 rr_AnnualReturn2007 8.14%
Annual Return 2008 rr_AnnualReturn2008 3.86%
Annual Return 2009 rr_AnnualReturn2009 12.61%
Annual Return 2010 rr_AnnualReturn2010 8.43%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.13%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.13%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.92% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.92%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.38% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.38%)
1 Year rr_AverageAnnualReturnYear01 8.43%
5 Years rr_AverageAnnualReturnYear05 7.32%
10 Years rr_AverageAnnualReturnYear10 6.67%
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.11% [84]
5 Years rr_AverageAnnualReturnYear05 5.18% [84]
10 Years rr_AverageAnnualReturnYear10 4.59% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.65% [84]
5 Years rr_AverageAnnualReturnYear05 5.02% [84]
10 Years rr_AverageAnnualReturnYear10 4.49% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Moderate Duration Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.56%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
1 Year rr_AverageAnnualReturnYear01 8.30%
5 Years rr_AverageAnnualReturnYear05 7.20%
10 Years rr_AverageAnnualReturnYear10 6.55%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing at least 97% of its total assets in a diversified portfolio of money market securities that are in the highest rating category for short-term obligations. The Fund also may invest up to 3% of its total assets in money market securities that are in the second-highest rating category for short-term obligations that have a remaining maturity of 45 days or less. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund may invest in the following: obligations of the U.S. Government (including its agencies and instrumentalities); short-term corporate debt securities of domestic and foreign corporations; obligations of domestic and foreign commercial banks, savings banks, and savings and loan associations; and commercial paper. The Fund may invest more than 25% of its total assets in or obligations issued by U.S. banks.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. To obtain the Fund's current yield, call 1-800-927-4648. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.

The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3-month Treasury Bill issues. The Lipper Institutional Money Market Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in high quality financial instruments (rated in the top two grades) with dollar-weighted maturities of less than 90 days. The Lipper Money Market Funds Index is an average of the 30 largest equal weighted Money Market Funds as compiled by Lipper Analytical Inc.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.04%. For the periods shown in the bar chart, the highest quarterly return was 1.40% in the Q1 2001, and the lowest quarterly return was 0.01% in the Q1 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Lipper Institutional Money Market Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.07%
5 Years rr_AverageAnnualReturnYear05 2.51%
10 Years rr_AverageAnnualReturnYear10 2.29%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
5 Years rr_AverageAnnualReturnYear05 2.30%
10 Years rr_AverageAnnualReturnYear10 2.26%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Lipper Money Market Fund Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03%
5 Years rr_AverageAnnualReturnYear05 2.37%
10 Years rr_AverageAnnualReturnYear10 2.10%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.32%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.57% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 58
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 183
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 318
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 714
1 Year rr_AverageAnnualReturnYear01 0.05%
5 Years rr_AverageAnnualReturnYear05 2.29%
10 Years rr_AverageAnnualReturnYear10 2.04%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.32%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.32% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 33
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 103
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 180
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 406
Annual Return 2001 rr_AnnualReturn2001 3.95%
Annual Return 2002 rr_AnnualReturn2002 1.49%
Annual Return 2003 rr_AnnualReturn2003 0.85%
Annual Return 2004 rr_AnnualReturn2004 1.05%
Annual Return 2005 rr_AnnualReturn2005 2.96%
Annual Return 2006 rr_AnnualReturn2006 4.82%
Annual Return 2007 rr_AnnualReturn2007 5.04%
Annual Return 2008 rr_AnnualReturn2008 2.32%
Annual Return 2009 rr_AnnualReturn2009 0.15%
Annual Return 2010 rr_AnnualReturn2010 0.05%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.87%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.87%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.70% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.70%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.01% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.01%)
1 Year rr_AverageAnnualReturnYear01 0.05%
5 Years rr_AverageAnnualReturnYear05 2.45%
10 Years rr_AverageAnnualReturnYear10 2.25%
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03% [84]
5 Years rr_AverageAnnualReturnYear05 1.59% [84]
10 Years rr_AverageAnnualReturnYear10 1.44% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03% [84]
5 Years rr_AverageAnnualReturnYear05 1.59% [84]
10 Years rr_AverageAnnualReturnYear10 1.44% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Money Market Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.42%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.42% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 43
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 135
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 235
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 530
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 966% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 966.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of mortgage-related Fixed Income Instruments of varying maturities (such as mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities and mortgage dollar rolls), which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private sector entities. The average portfolio duration of this Fund normally varies from one to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The F und invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality, subject to a minimum rating of Baa by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The Fund may not invest in securities denominated in foreign currencies, but may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in U.S. dollar-denominated securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The F und may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Administrative Class shares (December 13, 2001), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Fund's past perform ance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. MBS Fixed Rate Index covers the mortgage-backed pass-through securities of Ginnie Mae (GNMA), Fannie Mae (FNMA), and Freddie Mac (FHLMC). The MBS Index is formed by grouping the universe of over 600,000 individual fixed rate MBS pools into approximately 3,500 generic aggregates. The Lipper U.S. Mortgage Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in mortgages/securities issued or guaranteed as to principal and interest by the U.S. government and certain federal agencies.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.58%. For the periods shown in the bar chart, the highest quarterly return was 5.31% in the Q3 2009, and the lowest quarterly return was -1.48% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Barclays Capital U.S. MBS Fixed Rate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.50%
5 Years rr_AverageAnnualReturnYear05 6.38%
10 Years rr_AverageAnnualReturnYear10 5.91%
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Lipper U.S. Mortgage Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.64%
5 Years rr_AverageAnnualReturnYear05 4.98%
10 Years rr_AverageAnnualReturnYear10 4.78%
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 9.11%
5 Years rr_AverageAnnualReturnYear05 6.87%
10 Years rr_AverageAnnualReturnYear10 6.39%
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 8.95%
5 Years rr_AverageAnnualReturnYear05 6.71%
10 Years rr_AverageAnnualReturnYear10 6.23%
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 9.99%
Annual Return 2002 rr_AnnualReturn2002 9.46%
Annual Return 2003 rr_AnnualReturn2003 4.20%
Annual Return 2004 rr_AnnualReturn2004 4.92%
Annual Return 2005 rr_AnnualReturn2005 2.47%
Annual Return 2006 rr_AnnualReturn2006 5.56%
Annual Return 2007 rr_AnnualReturn2007 7.33%
Annual Return 2008 rr_AnnualReturn2008 (0.44%)
Annual Return 2009 rr_AnnualReturn2009 14.40%
Annual Return 2010 rr_AnnualReturn2010 9.38%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.04%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.40% in the Q1 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.40%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 0.01% in the Q1 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 0.01%
1 Year rr_AverageAnnualReturnYear01 9.38%
5 Years rr_AverageAnnualReturnYear05 7.14%
10 Years rr_AverageAnnualReturnYear10 6.65%
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.80% [84]
5 Years rr_AverageAnnualReturnYear05 4.68% [84]
10 Years rr_AverageAnnualReturnYear10 4.39% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.07% [84]
5 Years rr_AverageAnnualReturnYear05 4.66% [84]
10 Years rr_AverageAnnualReturnYear10 4.34% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Mortgage-Backed Securities Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 9.27%
5 Years rr_AverageAnnualReturnYear05 7.03%
10 Years rr_AverageAnnualReturnYear10 6.54%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax, consistent with preservation of capital. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund may invest up to 20% of its net assets in U.S. Government Securities, money market instruments and/or "private activity" bonds. For shareholders subject to the federal alternative minimum tax ("AMT"), distributions derived from "private activity" bonds must be included in their AMT calculations, and as such a portion of the Fund's distribution may be subject to federal income tax. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in Municipal Bonds or "private activity" bonds which are high yield securities ("junk bonds") rated at least Ba by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest more than 25% of its total asset s in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The average portfolio duration of this Fund normally varies from three to ten years, based on PIMCO's forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital apprecia tion, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, and invest in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Municipal Bond Index consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper General Municipal Debt Funds Index consists of funds that invest at least 65% of their assets in municipal debt issues in the top four credit ratings. It does not take into account sales charges.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.16%. For the periods shown in the bar chart, the highest quarterly return was 10.62% in the Q3 2009, and the lowest quarterly return was -12.47% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.09%
10 Years rr_AverageAnnualReturnYear10 4.83%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Lipper General Municipal Debt Funds Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.65%
5 Years rr_AverageAnnualReturnYear05 3.05%
10 Years rr_AverageAnnualReturnYear10 4.11%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.44%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.69%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 70
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 221
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 384
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 859
1 Year rr_AverageAnnualReturnYear01 3.30%
5 Years rr_AverageAnnualReturnYear05 1.06%
10 Years rr_AverageAnnualReturnYear10 3.18%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 3.24%
5 Years rr_AverageAnnualReturnYear05 0.98%
10 Years rr_AverageAnnualReturnYear10 3.09%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.44%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.44%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 45
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 141
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 246
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 555
Annual Return 2001 rr_AnnualReturn2001 7.74%
Annual Return 2002 rr_AnnualReturn2002 8.29%
Annual Return 2003 rr_AnnualReturn2003 5.35%
Annual Return 2004 rr_AnnualReturn2004 2.92%
Annual Return 2005 rr_AnnualReturn2005 3.85%
Annual Return 2006 rr_AnnualReturn2006 5.42%
Annual Return 2007 rr_AnnualReturn2007 0.82%
Annual Return 2008 rr_AnnualReturn2008 (19.63%)
Annual Return 2009 rr_AnnualReturn2009 20.66%
Annual Return 2010 rr_AnnualReturn2010 3.55%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.58%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.58%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 5.31% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.31%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.48% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.48%)
1 Year rr_AverageAnnualReturnYear01 3.55%
5 Years rr_AverageAnnualReturnYear05 1.31%
10 Years rr_AverageAnnualReturnYear10 3.44%
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.42% [84]
5 Years rr_AverageAnnualReturnYear05 1.17% [84]
10 Years rr_AverageAnnualReturnYear10 3.12% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.70% [84]
5 Years rr_AverageAnnualReturnYear05 1.62% [84]
10 Years rr_AverageAnnualReturnYear10 3.30% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Municipal Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.54%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 55
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 173
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 302
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 677
1 Year rr_AverageAnnualReturnYear01 3.45%
5 Years rr_AverageAnnualReturnYear05 1.18%
10 Years rr_AverageAnnualReturnYear10 3.30%
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal and New York income tax. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 25% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 25.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and New York income tax ("New York Municipal Bonds"). New York Municipal Bonds generally are issued by or on behalf of the State of New York and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of New York whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and New York income tax. By concentrating its investments in New York, the Fund will be subject to New York State-Specific Risk.

The Fund may invest without limitation in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, a substantial portion of the Fund's distributions may not be exempt from federal income tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from three to twelve years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows the performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class D shares (January 31, 2000) and Class P shares (November 19, 2010), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares. The Administrative Class of the Fund has n ot commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital New York Insured Municipal Bond Index is an unmanaged index comprised of a broad selection of insured general obligation and revenue bonds of New York issuers with remaining maturities ranging from one year to 30 years. The Lipper New York Municipal Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in municipal debt issues that are exempt from taxation in New York.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.24%. For the periods shown in the bar chart, the highest quarterly return was 7.77% in the Q3 2009, and the lowest quarterly return was -3.76% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Lipper New York Municipal Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.67%
5 Years rr_AverageAnnualReturnYear05 2.87%
10 Years rr_AverageAnnualReturnYear10 3.86%
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Barclays Capital New York Insured Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.30%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.94%
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.445%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.695%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 71
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 222
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 387
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 865
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.775%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 79
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 248
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 431
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 960
1 Year rr_AverageAnnualReturnYear01 3.04%
5 Years rr_AverageAnnualReturnYear05 3.40%
10 Years rr_AverageAnnualReturnYear10 4.48%
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.445%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.445%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 143
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 249
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 561
Annual Return 2001 rr_AnnualReturn2001 6.68%
Annual Return 2002 rr_AnnualReturn2002 11.59%
Annual Return 2003 rr_AnnualReturn2003 4.95%
Annual Return 2004 rr_AnnualReturn2004 3.74%
Annual Return 2005 rr_AnnualReturn2005 3.12%
Annual Return 2006 rr_AnnualReturn2006 4.80%
Annual Return 2007 rr_AnnualReturn2007 2.62%
Annual Return 2008 rr_AnnualReturn2008 (4.53%)
Annual Return 2009 rr_AnnualReturn2009 13.29%
Annual Return 2010 rr_AnnualReturn2010 3.37%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.16%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.16%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 10.62% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.62%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -12.47% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.47%)
1 Year rr_AverageAnnualReturnYear01 3.37%
5 Years rr_AverageAnnualReturnYear05 3.75%
10 Years rr_AverageAnnualReturnYear10 4.86%
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.32% [84]
5 Years rr_AverageAnnualReturnYear05 3.60% [84]
10 Years rr_AverageAnnualReturnYear10 4.59% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.45% [84]
5 Years rr_AverageAnnualReturnYear05 3.63% [84]
10 Years rr_AverageAnnualReturnYear10 4.56% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO New York Municipal Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.545%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.545%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 175
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 305
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 683
1 Year rr_AverageAnnualReturnYear01 3.27%
5 Years rr_AverageAnnualReturnYear05 3.65%
10 Years rr_AverageAnnualReturnYear10 4.77%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 174% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 174.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks its investment objective by investing under normal circumstances at least 80% of its net assets in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Assets not invested in inflation-indexed bonds may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. "Real return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure.

Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. Effective duration takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Because market convention for bonds is to use nominal yields to measure duration, duration for real return bonds, which are based on real yields, are converted to nominal durations through a conversion factor. The resulting nominal duration typically can range from 20% and 90% of the respective real duration. All security holdings will be measured in effective (nominal) duration terms. Similarly, the effective duration of the Barclays Capital U.S. TIPS Index will be calculated using the same conversion factors. The effective duration of this Fund normally varies within three years (plus or minus) of the effective duration of the Barclays Capital U.S. TIPS Index which as of June 30, 2011, as converted, was 5.92 years.

The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality.

The Fund also may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. TIPS Index is an unmanaged market index comprised of all U.S. Treasury Inflation Protected Securities rated investment grade (Baa3 or better), have at least one year to final maturity, and at least $250 million par amount outstanding. Performance data for this index prior to 10/97 represents returns of the Barclays Capital Inflation Notes Index. The Lipper Treasury Inflation-Protected Securities Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in inflation-indexed fixed income securities issued in the United States. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The index returns allow for a comparison of the Fund's performance to an index of funds with similar investment objectives as the Fund.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance, and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.24%. For the periods shown in the bar chart, the highest quarterly return was 7.70% in the Q3 2002, and the lowest quarterly return was -5.76% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Barclays Capital U.S. TIPS Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.31%
5 Years rr_AverageAnnualReturnYear05 5.33%
10 Years rr_AverageAnnualReturnYear10 7.02%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Lipper Treasury Inflation-Protected Securities Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.86%
5 Years rr_AverageAnnualReturnYear05 4.32%
10 Years rr_AverageAnnualReturnYear10 6.29%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.71% [41]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 883
1 Year rr_AverageAnnualReturnYear01 7.54%
5 Years rr_AverageAnnualReturnYear05 5.81%
10 Years rr_AverageAnnualReturnYear10 7.32%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86% [41]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 477
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,061
1 Year rr_AverageAnnualReturnYear01 7.38%
5 Years rr_AverageAnnualReturnYear05 5.62%
10 Years rr_AverageAnnualReturnYear10 7.12%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46% [41]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 47
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 148
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 258
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 579
Annual Return 2001 rr_AnnualReturn2001 8.70%
Annual Return 2002 rr_AnnualReturn2002 17.06%
Annual Return 2003 rr_AnnualReturn2003 8.50%
Annual Return 2004 rr_AnnualReturn2004 9.19%
Annual Return 2005 rr_AnnualReturn2005 2.64%
Annual Return 2006 rr_AnnualReturn2006 0.28%
Annual Return 2007 rr_AnnualReturn2007 11.59%
Annual Return 2008 rr_AnnualReturn2008 (6.42%)
Annual Return 2009 rr_AnnualReturn2009 18.96%
Annual Return 2010 rr_AnnualReturn2010 7.81%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.24%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.24%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.77% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.77%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.76% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.76%)
1 Year rr_AverageAnnualReturnYear01 7.81%
5 Years rr_AverageAnnualReturnYear05 6.08%
10 Years rr_AverageAnnualReturnYear10 7.59%
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.92% [84]
5 Years rr_AverageAnnualReturnYear05 4.10% [84]
10 Years rr_AverageAnnualReturnYear10 5.38% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.07% [84]
5 Years rr_AverageAnnualReturnYear05 4.00% [84]
10 Years rr_AverageAnnualReturnYear10 5.23% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Real Return Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56% [41]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
1 Year rr_AverageAnnualReturnYear01 7.70%
5 Years rr_AverageAnnualReturnYear05 5.97%
10 Years rr_AverageAnnualReturnYear10 7.49%
(PIMCO Bond Funds - Institutional) | (PIMCO Senior Floating Rate Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks a high level of current income, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of floating or adjustable rate senior secured loans, senior corporate debt and other senior Fixed Income Instruments that effectively enable the Fund to achieve a floating rate of income. "Fixed Income Instruments" include bank loans, bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. entities.

A senior secured debt security holds a senior position in the issuer's capital structure and is typically secured by collateral such that, under normal circumstances, holders (such as the Fund) enjoy a priority claim to some or all of the issuer's assets in the event of default as compared to other creditors of the issuer. Variable and floating-rate Fixed Income Instruments generally pay interest at rates that adjust whenever a specified interest rate changes and/or reset on predetermined dates (such as the last day of a month or calendar quarter). The Fund may also invest in fixed-rate Fixed Income Instruments, including those with respect to which the Fund has entered into derivative instruments to effectively convert the fixed-rate interest payments into floating-rate interest payments.

The Fund may invest in both investment grade securities and high yield securities ("junk bonds") and may primarily invest its assets in below investment grade securities subject to a maximum of 5% of its total assets in securities rated below Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities and instruments of issuers economically tied to emerging market countries. The Fund may also invest up to 20% of its total assets in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 5% of its total assets.

The Fund may invest in derivative instruments, such as credit default swap and total return swap agreements, interest rate swaps, futures and options, subject to applicable law and any other restrictions described in the prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis, including currency forwards, and may engage in short sales.

The average portfolio duration of the Fund will normally vary within one year (plus or minus) of the duration of the Credit Suisse Institutional Leveraged Loan Index, which was, as calculated by PIMCO, less than 6 months as of the date of the prospectus. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Senior Debt Risk: the risk that investing in senior debt exposes the Fund to heightened credit risk and liquidity risk. If the issuer prepays, the Fund will have to reinvest the proceeds in other senior debt or instruments that may pay lower interest rates

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks, including the risk that a court will subordinate high yield senior debt to other debt of the issuer or take other actions detrimental to holders of the senior debt. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Credit Suisse Institutional Leverage Loan Index. The Credit Suisse Institutional Leveraged Loan Index is a sub-index of the Credit Suisse Leveraged Loan Index and is designed to more closely reflect the investment criteria of institutional investors by sampling a lower volatility component of the market. The Index is formed by excluding the following facilities from the Credit Suisse Leveraged Loan Index: facility types TL and TLa, facilities priced 90 or lower at the beginning of the month and facilities rated CC, C or Default. The Credit Suisse Leveraged Loan Index is designed to mirror the investable universe of the $US-denominated leveraged loan market. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
(PIMCO Bond Funds - Institutional) | (PIMCO Senior Floating Rate Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.07%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.05%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 107
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 334
(PIMCO Bond Funds - Institutional) | (PIMCO Senior Floating Rate Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.12%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 112
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 350
(PIMCO Bond Funds - Institutional) | (PIMCO Senior Floating Rate Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Redemption Fees rr_RedemptionFeeOverRedemption (1.00%) [3]
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.82%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
(PIMCO Bond Funds - Institutional) | (PIMCO Senior Floating Rate Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.92%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax, consistent with preservation of capital.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 56% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 56.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may only invest in investment grade debt securities. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed three years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), Administrative Class shares (October 22, 2002) and Class D shares (January 31, 2000), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by these classes of shares . The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital 1 Year Municipal Bond Index is an unmanaged index comprised of national municipal bond issues having a maturity of at least one year and less than two years. The Lipper Short Municipal Debt Funds Average is a total performance average of funds tracked by Lipper, Inc. that invest in municipal debt issues with dollar-weighted maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.78%. For the periods shown in the bar chart, the highest quarterly return was 2.68% in the Q1 2009, and the lowest quarterly return was -10.91% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Barclays Capital 1 Year Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.17%
5 Years rr_AverageAnnualReturnYear05 3.35%
10 Years rr_AverageAnnualReturnYear10 3.06%
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Lipper Short Municipal Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.22%
5 Years rr_AverageAnnualReturnYear05 2.55%
10 Years rr_AverageAnnualReturnYear10 2.73%
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.58%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 59
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 186
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 324
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 726
1 Year rr_AverageAnnualReturnYear01 1.65%
5 Years rr_AverageAnnualReturnYear05 (0.12%)
10 Years rr_AverageAnnualReturnYear10 1.13%
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 75
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 233
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 406
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 906
1 Year rr_AverageAnnualReturnYear01 1.49%
5 Years rr_AverageAnnualReturnYear05 (0.27%)
10 Years rr_AverageAnnualReturnYear10 0.98%
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.33%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 34
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 106
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 185
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 418
Annual Return 2001 rr_AnnualReturn2001 4.98%
Annual Return 2002 rr_AnnualReturn2002 2.97%
Annual Return 2003 rr_AnnualReturn2003 2.54%
Annual Return 2004 rr_AnnualReturn2004 0.85%
Annual Return 2005 rr_AnnualReturn2005 1.94%
Annual Return 2006 rr_AnnualReturn2006 4.34%
Annual Return 2007 rr_AnnualReturn2007 1.23%
Annual Return 2008 rr_AnnualReturn2008 (13.73%)
Annual Return 2009 rr_AnnualReturn2009 8.34%
Annual Return 2010 rr_AnnualReturn2010 1.90%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.78%.
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.78%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.68% in the Q1 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.68%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -10.91% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.91%)
1 Year rr_AverageAnnualReturnYear01 1.90%
5 Years rr_AverageAnnualReturnYear05 0.12%
10 Years rr_AverageAnnualReturnYear10 1.37%
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.85% [84]
5 Years rr_AverageAnnualReturnYear05 0.01% [84]
10 Years rr_AverageAnnualReturnYear10 1.03% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.73% [84]
5 Years rr_AverageAnnualReturnYear05 0.45% [84]
10 Years rr_AverageAnnualReturnYear10 1.29% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Short Duration Municipal Income Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.43%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
1 Year rr_AverageAnnualReturnYear01 1.80%
5 Years rr_AverageAnnualReturnYear05 none
10 Years rr_AverageAnnualReturnYear10 1.25%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 182% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 182.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and will normally not exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3 month Treasury Bill issues. The Lipper Ultra-Short Obligation Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues or better, and maintain a portfolio dollar-weighted average maturity between 91 and 365 days. The index returns allow for a comparison of the Fund's performance to an index of funds with similar investment objectives as the Fund.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.01%. For the periods shown in the bar chart, the highest quarterly return was 3.61% in the Q2 2009, and the lowest quarterly return was -1.95% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Lipper Ultra-Short Obligation Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.40%
5 Years rr_AverageAnnualReturnYear05 2.24%
10 Years rr_AverageAnnualReturnYear10 2.66%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
5 Years rr_AverageAnnualReturnYear05 2.30%
10 Years rr_AverageAnnualReturnYear10 2.26%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 224
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 871
1 Year rr_AverageAnnualReturnYear01 1.68%
5 Years rr_AverageAnnualReturnYear05 3.51%
10 Years rr_AverageAnnualReturnYear10 3.18%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 224
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 871
1 Year rr_AverageAnnualReturnYear01 1.63%
5 Years rr_AverageAnnualReturnYear05 3.46%
10 Years rr_AverageAnnualReturnYear10 3.13%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 567
Annual Return 2001 rr_AnnualReturn2001 5.65%
Annual Return 2002 rr_AnnualReturn2002 2.86%
Annual Return 2003 rr_AnnualReturn2003 2.60%
Annual Return 2004 rr_AnnualReturn2004 1.78%
Annual Return 2005 rr_AnnualReturn2005 2.65%
Annual Return 2006 rr_AnnualReturn2006 4.52%
Annual Return 2007 rr_AnnualReturn2007 4.55%
Annual Return 2008 rr_AnnualReturn2008 (1.30%)
Annual Return 2009 rr_AnnualReturn2009 9.44%
Annual Return 2010 rr_AnnualReturn2010 1.93%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.01%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.01%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 3.61% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 3.61%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.95% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.95%)
1 Year rr_AverageAnnualReturnYear01 1.93%
5 Years rr_AverageAnnualReturnYear05 3.77%
10 Years rr_AverageAnnualReturnYear10 3.43%
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.45% [84]
5 Years rr_AverageAnnualReturnYear05 2.40% [84]
10 Years rr_AverageAnnualReturnYear10 2.18% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.31% [84]
5 Years rr_AverageAnnualReturnYear05 2.44% [84]
10 Years rr_AverageAnnualReturnYear10 2.20% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Short-Term Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
1 Year rr_AverageAnnualReturnYear01 1.83%
5 Years rr_AverageAnnualReturnYear05 3.66%
10 Years rr_AverageAnnualReturnYear10 3.33%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 430% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 430.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 30, 2011 was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment-grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may invest up to 10% of its total assets in preferred stock, convertible securities and other equity related securities.

The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any,which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity or equity-related securities may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, if any, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.99%. For the periods shown in the bar chart, the highest quarterly return was 6.49% in the Q3 2001, and the lowest quarterly return was -2.18% in the Q2 2004.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.84%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.71%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 883
1 Year rr_AverageAnnualReturnYear01 8.56%
5 Years rr_AverageAnnualReturnYear05 7.78%
10 Years rr_AverageAnnualReturnYear10 7.07%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 8.52%
5 Years rr_AverageAnnualReturnYear05 7.72%
10 Years rr_AverageAnnualReturnYear10 7.00%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 47
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 148
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 258
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 579
Annual Return 2001 rr_AnnualReturn2001 9.49%
Annual Return 2002 rr_AnnualReturn2002 10.20%
Annual Return 2003 rr_AnnualReturn2003 5.56%
Annual Return 2004 rr_AnnualReturn2004 5.14%
Annual Return 2005 rr_AnnualReturn2005 2.89%
Annual Return 2006 rr_AnnualReturn2006 3.99%
Annual Return 2007 rr_AnnualReturn2007 9.07%
Annual Return 2008 rr_AnnualReturn2008 4.81%
Annual Return 2009 rr_AnnualReturn2009 13.83%
Annual Return 2010 rr_AnnualReturn2010 8.83%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.99%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.99%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.49% in the Q3 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.49%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.18% in the Q2 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.18%)
1 Year rr_AverageAnnualReturnYear01 8.83%
5 Years rr_AverageAnnualReturnYear05 8.05%
10 Years rr_AverageAnnualReturnYear10 7.33%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.18% [84]
5 Years rr_AverageAnnualReturnYear05 5.78% [84]
10 Years rr_AverageAnnualReturnYear10 5.07% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.04% [84]
5 Years rr_AverageAnnualReturnYear05 5.68% [84]
10 Years rr_AverageAnnualReturnYear10 5.01% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.56%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
1 Year rr_AverageAnnualReturnYear01 8.72%
5 Years rr_AverageAnnualReturnYear05 7.94%
10 Years rr_AverageAnnualReturnYear10 7.23%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 563% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 563.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 30, 2011 was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest only in investment grade U.S. dollar denominated securities of U.S. issuers that are rated at least Baa by Moody's Investors Service , Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The F und may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitation, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (December 31, 2009), performance information shown in the table for the class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.55%. For the periods shown in the bar chart, the highest quarterly return was 6.50% in the Q3 2001, and the lowest quarterly return was -1.90% in the Q2 2004.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.84%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 7.46%
5 Years rr_AverageAnnualReturnYear05 7.43%
10 Years rr_AverageAnnualReturnYear10 6.63%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 9.66%
Annual Return 2002 rr_AnnualReturn2002 9.92%
Annual Return 2003 rr_AnnualReturn2003 4.88%
Annual Return 2004 rr_AnnualReturn2004 4.22%
Annual Return 2005 rr_AnnualReturn2005 2.09%
Annual Return 2006 rr_AnnualReturn2006 3.90%
Annual Return 2007 rr_AnnualReturn2007 8.37%
Annual Return 2008 rr_AnnualReturn2008 5.12%
Annual Return 2009 rr_AnnualReturn2009 13.62%
Annual Return 2010 rr_AnnualReturn2010 7.73%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.55%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.55%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.50% in the Q3 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.50%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.90% in the Q2 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.90%)
1 Year rr_AverageAnnualReturnYear01 7.73%
5 Years rr_AverageAnnualReturnYear05 7.69%
10 Years rr_AverageAnnualReturnYear10 6.90%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.16% [84]
5 Years rr_AverageAnnualReturnYear05 5.43% [84]
10 Years rr_AverageAnnualReturnYear10 4.68% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.48% [84]
5 Years rr_AverageAnnualReturnYear05 5.32% [84]
10 Years rr_AverageAnnualReturnYear10 4.65% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund II) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 7.63%
5 Years rr_AverageAnnualReturnYear05 7.59%
10 Years rr_AverageAnnualReturnYear10 6.79%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 377% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 377.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 30, 2011 was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund will not invest in the securities of any issuer determined by Pacific Investment Management Company LLC ("PIMCO") to be engaged pr incipally in the provision of healthcare services, the manufacture of alcoholic beverages, tobacco products, pharmaceuticals or military equipment, the operation of gambling casinos or in the production or trade of pornographic materials. To the extent possible on the basis of information available to PIMCO, an issuer will be deemed to be principally engaged in an activity if it derives more than 10% of its gross revenues from such activities. In addition, the Fund will not invest directly in securities of issuers that are engaged in certain business activities in or with the Republic of the Sudan (a "Sudan-Related Issuer"). In analyzing whether an issuer is a Sudan-Related Issuer, PIMCO may rely upon, among other things, information from a list provided by an independent third party.

The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (March 31, 2009), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.41%. For the periods shown in the bar chart, the highest quarterly return was 6.72% in the Q3 2001, and the lowest quarterly return was -2.79% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.84%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 8.81%
5 Years rr_AverageAnnualReturnYear05 7.58%
10 Years rr_AverageAnnualReturnYear10 7.06%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 9.97%
Annual Return 2002 rr_AnnualReturn2002 9.98%
Annual Return 2003 rr_AnnualReturn2003 6.36%
Annual Return 2004 rr_AnnualReturn2004 5.45%
Annual Return 2005 rr_AnnualReturn2005 2.55%
Annual Return 2006 rr_AnnualReturn2006 3.86%
Annual Return 2007 rr_AnnualReturn2007 8.54%
Annual Return 2008 rr_AnnualReturn2008 4.21%
Annual Return 2009 rr_AnnualReturn2009 13.85%
Annual Return 2010 rr_AnnualReturn2010 9.08%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.41%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.41%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.72% in the Q3 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.79% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.79%)
1 Year rr_AverageAnnualReturnYear01 9.08%
5 Years rr_AverageAnnualReturnYear05 7.85%
10 Years rr_AverageAnnualReturnYear10 7.33%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.16% [84]
5 Years rr_AverageAnnualReturnYear05 5.38% [84]
10 Years rr_AverageAnnualReturnYear10 4.99% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.11% [84]
5 Years rr_AverageAnnualReturnYear05 5.28% [84]
10 Years rr_AverageAnnualReturnYear10 4.93% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund III) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 8.97%
5 Years rr_AverageAnnualReturnYear05 7.74%
10 Years rr_AverageAnnualReturnYear10 7.23%
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund IV)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within one and a half years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 30, 2011, was 5.19 years. Duration is a measure to used to detrmine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest without limitation in the core sectors of the bond market including government bonds, mortgage bonds and corporate bonds and will generally seek to maintain positive exposure to these sectors. The Fund may invest only in investment grade securities of issuers that are rated at least Baa by Moody's Investors Service, Inc., or equivalently rated by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers, although the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 5% of its total assets. Th e Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund may invest in certain derivative instruments, such as futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales, including short exposures obtained using derivative instruments, up to 10% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest up to 10% of its total assets in preferred stock, convertible securities and other equity-related securities, although the Fund will not invest in common stock.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity or equity-related securities may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as the use of when-issued, delayed delivery or forward commitment transactions, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund IV) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund IV) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund IV) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.51%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
(PIMCO Bond Funds - Institutional) | (PIMCO Total Return Fund IV) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.61%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [69]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
(PIMCO Bond Funds - Institutional) | (PIMCO Treasury Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class M, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a portfolio of U.S. Treasury securities. The Fund may invest in the following: U.S. Treasury bills, notes, trust receipts and other direct obligations of the U.S. Treasury and repurchase agreements secured by such obligations. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Returns Table is included.

The Fund's benchmark index is the Citigroup 3-Month Treasury Bill Index. The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3-month Treasury Bill issues.

Once the Fund commences operations, performance will be updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
(PIMCO Bond Funds - Institutional) | (PIMCO Treasury Money Market Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [71]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
(PIMCO Bond Funds - Institutional) | (PIMCO Treasury Money Market Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [71]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
(PIMCO Bond Funds - Institutional) | (PIMCO Treasury Money Market Fund) | Class M
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.21%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [71]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.18% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 18
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 58
(PIMCO Bond Funds - Institutional) | (PIMCO Treasury Money Market Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.28%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.31%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [71]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.28% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 29
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 90
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum long-term return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,240% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1240.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund intends to utilize various investment strategies in a broad array of fixed income sectors to achieve its investment objective. The Fund will not be constrained by management against an index. The average portfolio duration of this Fund will normally vary from (negative) 3 years to positive 8 years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, th e more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 40% of its total assets in securities rated below Baa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest without limitation in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. In addition, the Fund may invest up to 50% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 35% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3-Month USD LIBOR Index (Resets Quarterly). LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market, resetting quarterly. Prior to August 1, 2009, the Fund's benchmark index was the same 3 month LIBOR Index as described, but resetting monthly. The Lipper General Bond Funds Average is a total return performance average of funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.07%. For the periods shown in the bar chart, the highest quarterly return was 5.51% in the Q2 2009, and the lowest quarterly return was -1.04% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/30/2008)
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Lipper General Bond Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.62%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | 3-Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.15%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.23% [46]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 125
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 390
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 676
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,489
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.38% [46]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 140
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 437
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 755
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,657
1 Year rr_AverageAnnualReturnYear01 5.22%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.82%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.98% [46]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 100
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 312
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 542
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,201
Annual Return 2009 rr_AnnualReturn2009 13.09%
Annual Return 2010 rr_AnnualReturn2010 5.64%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.07%.
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.07%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 5.51% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.51%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.04% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.04%)
1 Year rr_AverageAnnualReturnYear01 5.64%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.25%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.64% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.86% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.67% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.25% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.08% [46]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 110
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 343
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 595
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,317
1 Year rr_AverageAnnualReturnYear01 5.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.14%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum long-term after-tax return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 401% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 401.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund intends to utilize various investment strategies in a broad array of fixed income sectors to achieve its investment objective. The Fund will not be constrained by management against an index. The average portfolio duration of this Fund will normally vary from (negative) 3 years to positive 10 years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, t he more sensitive it will be to changes in interest rates.

The Fund seeks to invest under normal circumstances at least 50% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities. The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 2 5% or more of its total assets in industrial development bonds.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 40% of its total assets in securities rated below Baa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest up to 50% of its total assets in securities denominated in foreign currencies. The Fund may invest up to 50% of its total assets in securities of foreign issuers. The Fund may invest up to 50% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 35% of its total assets. The Fund may also invest up to 10% of its total assets in preferr ed stocks.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). In addition, the Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. It is possible to lose money on an investment in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3-Month USD LIBOR After Tax. LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper General Bond Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.64%. For the periods shown in the bar chart, the highest quarterly return was 2.36% in the Q3 2010, and the lowest quarterly return was -1.27% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (1/30/2009)
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | 3-Month USD LIBOR After Tax (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.22%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.39%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Lipper General Bond Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.18%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.03% [47]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 105
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 328
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 569
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,259
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.18% [47]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 120
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 375
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 649
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,432
1 Year rr_AverageAnnualReturnYear01 1.38%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.88%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.78% [47]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 80
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 249
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 433
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 966
Annual Return 2010 rr_AnnualReturn2010 1.78%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.64%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.64%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.36% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.36%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.27% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.27%)
1 Year rr_AverageAnnualReturnYear01 1.78%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.29%
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.34% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.66% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.31% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.37% [84]
(PIMCO Bond Funds - Institutional) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.88% [47]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 90
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 281
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 488
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,084
1 Year rr_AverageAnnualReturnYear01 1.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.20%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in Institutional Class or, as applicable, Class M shares of any funds of the Trust, except the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset, PIMCO RealRetirement® Funds, as well as in funds of PIMCO Equity Series, an affiliated open-end investment company ("Underlying PIMCO Funds"). The Fund invests its assets in shares of the Underlying PIMCO Funds and does not invest directly in stocks or bonds of other issuers. Research Affiliates, LLC, the Fund's asset allocation sub-adviser, determines how the Fund allocates and reallocates its assets among the Underlying PIMCO Funds. In doing so, the asset allocation sub-adviser seeks concurrent exposure to a broad spectrum of asset classes.

The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund's investment in any particular Underlying PIMCO Fund normally will not exceed 50% of its total assets. The Fund's investment in the PIMCO StocksPLUS® TR Short Strategy Fund normally will not exceed 20% of its total assets. The Fund's combined investments in the PIMCO Fundamental IndexPLUS® TR, PIMCO Small Cap StocksPLUS® TR, PIMCO StocksPLUS®, PIMCO StocksPLUS® Long Duration and PIMCO StocksPLUS® Total Return Funds ("U.S. Stock Funds") normally will not exceed 50% of its total assets. The Fund's combined investments in the PIMCO International StocksPLUS® TR Strategy (Unhedged), PIMCO International StocksPLUS® TR Strategy (U.S. Dollar-Hedged), PIMCO EqS Emerging Markets and PIMCO EqS PathfinderTM Funds (" Non-U.S. Stock Funds") normally will not exceed 33-1/3% of its total assets. The Fund's combined investments in the U.S. Stock Funds and Non-U.S. Stock Funds (less any investment in the PIMCO StocksPLUS® TR Short Strategy Fund) normally will not exceed 66-2/3% of its total assets. In addition, the Fund's combined investments in the PIMCO CommodityRealReturn® Strategy, PIMCO Real Return, PIMCO Real Return Asset and PIMCO RealEstateRealReturn Strategy Funds normally will not exceed 75% of its total assets.

The Fund's assets are not allocated according to a predetermined blend of shares of the Underlying PIMCO Funds. Instead, when making allocation decisions among the Underlying PIMCO Funds, the Fund's asset allocation sub-adviser considers various quantitative and qualitative data relating to the U.S. and foreign economies and securities markets. These data include projected growth trends in the U.S. and foreign economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity and fixed income markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances and labor information. The Fund's asset allocation sub -adviser has the flexibility to reallocate the Fund's assets among any or all of the asset class exposures represented by the Underlying PIMCO Funds based on its ongoing analyses of the equity, fixed income and commodity markets. While these analyses are performed daily, material shifts in asset class exposures typically take place over longer periods of time. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may use leverage by borrowing for investment purposes. The Fund will borrow only from banks, and only when the value of the Fund's assets, minus its liabilities other than borrowings, equals or exceeds 300% of the Fund's total borrowings, including the proposed borrowing. If at any time this 300% coverage requirement is not met, the Fund will, within three business days, decrease its borrowings to the extent required. Borrowing requires the payment of interest and other loan costs. To make such payments, the Fund may be forced to sell portfolio securities when it is not otherwise advantageous to do so. At times when the Fund's borrowings are substantial, the interest expense to the Fund may result in the Fund having little or no investment income. The use of leverage by borrowing creates the potential for greater gains to shareholders of the Fund during favorable market conditions and the risk of magnified losse s during adverse market conditions. In addition, the Underlying PIMCO Funds may engage in certain transactions that give rise to a form of leverage.

The Fund is a "fund of funds," which is a term used to describe mutual funds that pursue their investment objective by investing in other mutual funds. In addition to investing in the Underlying PIMCO Funds, at the discretion of Pacific Investment Management Company LLC ("PIMCO") and without shareholder approval, the Fund may invest in additional PIMCO Funds created in the future.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Underlying PIMCO Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Underlying PIMCO Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Underlying PIMCO Funds to achieve their investment objectives

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

The principal risks of investing in the Underlying PIMCO Funds, and consequently the Fund, which could adversely affect its net asset value, yield and total return, are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Standard & Poor's 500 Composite Stock Price Index ("S&P 500") Index. The Fund's secondary benchmark is a benchmark created by adding 6.5% to the annual percentage change in the Consumer Price Index ("CPI") (specifically, the CPI for All Urban Consumers). The Fund believes that this secondary benchmark reflects the Fund's long-term investment strategy more accurately than the S&P 500 Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (July 10, 2008) and Class D shares (July 29, 2005), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by th ese classes of shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. CPI + 650 Basis Points benchmark is created by adding 6.5% to the annual percentage change in the CPI. This index reflects non-seasonally adjusted returns. The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. There can be no guarantee that the CPI or other indexes will reflect the exact level of inflation at any given time. The Lipper Flexible Portfolio Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that allocate their investments across various asset classes, including domestic common stocks, bond and money market instruments with a focus on total return.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.53%. For the periods shown in the bar chart, the highest quarterly return was 11.93% in the Q2 2009, and the lowest quarterly return was -6.72% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/31/2003)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Consumer Price Index + 650 Basis Points (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.28%
5 Years rr_AverageAnnualReturnYear05 9.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.24%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Lipper Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.03%
5 Years rr_AverageAnnualReturnYear05 3.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.85%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.63%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.67% [23],[49],[50]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 170
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 526
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 907
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,976
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.82% [23],[49],[50]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 185
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 573
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 985
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,137
1 Year rr_AverageAnnualReturnYear01 10.15%
5 Years rr_AverageAnnualReturnYear05 6.31%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.44%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.42% [23],[49],[50]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 145
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 449
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 776
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,702
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2004 rr_AnnualReturn2004 11.89%
Annual Return 2005 rr_AnnualReturn2005 6.72%
Annual Return 2006 rr_AnnualReturn2006 3.09%
Annual Return 2007 rr_AnnualReturn2007 9.99%
Annual Return 2008 rr_AnnualReturn2008 (6.92%)
Annual Return 2009 rr_AnnualReturn2009 19.35%
Annual Return 2010 rr_AnnualReturn2010 10.67%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.53%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.53%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.93% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.93%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.72% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.72%)
1 Year rr_AverageAnnualReturnYear01 10.67%
5 Years rr_AverageAnnualReturnYear05 6.87%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.06%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.05% [84]
5 Years rr_AverageAnnualReturnYear05 4.40% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.55% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.97% [84]
5 Years rr_AverageAnnualReturnYear05 4.42% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.45% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset All Authority Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.52% [23],[49],[50]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 155
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 480
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 829
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,813
1 Year rr_AverageAnnualReturnYear01 10.48%
5 Years rr_AverageAnnualReturnYear05 6.70%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.86%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark index consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,051% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1051.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark index by investing under normal circumstances in non-U.S. equity derivatives, backed by a portfolio of Fixed Income Instruments. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund's benchmark index is the Morgan Stanley Capital International Europe, Australia, and Far East ("EAFE") Net Dividend Index, hedged to U.S. dollars (the "Index"). The Fund normally uses equity derivatives instead of stocks to attempt to equal or exceed the daily performance of the Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of equity derivatives should closely track changes in the value of underlying securities or indices. However, derivativ es may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Index is an unmanaged index of issuers in countries of Europe, Australia and the Far East represented in U.S. dollars on a hedged basis. The Fund seeks to remain invested in equity derivatives and/or stocks even when the Index is declining. The Fund may invest in non-U.S. equities or non-U.S. equity derivatives that do not comprise the Index.

The Fund does not normally invest directly in stocks. However, when equity derivatives appear to be overvalued, the Fund may invest some or all of its assets in stocks. The Fund also may invest in exchange traded funds. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instr uments that are economically tied to emerging market countries. With respect to the Fund's fixed income investments, the Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. With respect to the Fund's fixed income investments, the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of stocks comprising the Index. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P and the Administrative Class of the Fund have not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The MSCI EAFE Net Dividend Index (USD Unhedged) is an unmanaged index of issuers in countries of Europe, Australia, and the Far East represented in U.S. Dollars on a unhedged basis. The Lipper International Multi-Cap Core Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in a variety of market capitalization ranges without concentrating 75% of their equity assets in any one market capitalization range over an extended period of time and typically have 25% to 75% of their assets invested in companies strictly outside of the U.S. with market capitalizations (on a three-year weighted basis) greater than the 250th-largest company in the S&P/Citigroup World ex-U.S. Broad Market Index. The Fund began operations 10/30/03. Index comparisons began on 10/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.68%. For the periods shown in the bar chart, the highest quarterly return was 27.71% in the Q2 2009, and the lowest quarterly return was -15.49% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2003)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | MSCI EAFE Net Dividend Hedged USD Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.60%
5 Years rr_AverageAnnualReturnYear05 0.02%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.93%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Lipper International Multi-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.84%
5 Years rr_AverageAnnualReturnYear05 3.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.55%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.02% [23],[53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 104
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 325
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 563
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,248
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.17% [23],[53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 119
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 372
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 644
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,420
1 Year rr_AverageAnnualReturnYear01 15.07%
5 Years rr_AverageAnnualReturnYear05 4.28%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.02%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.77% [23],[53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 79
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 246
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 428
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 954
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2004 rr_AnnualReturn2004 14.12%
Annual Return 2005 rr_AnnualReturn2005 27.05%
Annual Return 2006 rr_AnnualReturn2006 17.76%
Annual Return 2007 rr_AnnualReturn2007 5.44%
Annual Return 2008 rr_AnnualReturn2008 (40.26%)
Annual Return 2009 rr_AnnualReturn2009 46.83%
Annual Return 2010 rr_AnnualReturn2010 15.42%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.68%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.68%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 27.71% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 27.71%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -15.49% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.49%)
1 Year rr_AverageAnnualReturnYear01 15.42%
5 Years rr_AverageAnnualReturnYear05 4.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.49%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.39% [84]
5 Years rr_AverageAnnualReturnYear05 0.02% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.80% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.84% [84]
5 Years rr_AverageAnnualReturnYear05 1.41% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.53% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.87% [23],[53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 89
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 278
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 482
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,073
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark index consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 427% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 427.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark index by investing under normal circumstances in non-U.S. equity derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund's benchmark index is the Morgan Stanley Capital International Europe Australasia Far East ("EAFE") Net Dividend Index (the "Index"). The Fund normally uses equity derivatives instead of stocks to attempt to equal or exceed the daily performance of the Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of equity derivatives should closely track changes in the value of underlying securities or indices. However, derivatives may be purch ased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.The longer a security's duration, the more sensitive it will be to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rat es. The Barclays Capital U.S. Aggregate Index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis.

The Index is an unmanaged index of issuers in countries of Europe, Australia and the Far East represented in U.S. dollars on an unhedged basis. The Fund seeks to remain invested in equity derivatives and/or stocks even when the Index is declining. The Fund may invest in non-U.S. equities or non-U.S. equity derivatives that do not comprise the Index.

The Fund does not normally invest directly in stocks. However, when equity derivatives appear to be overvalued, the Fund may invest some or all of its assets in stocks. The Fund also may invest in exchange traded funds. The Fund's equity exposure will not be hedged into U.S. dollars. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instr uments that are economically tied to emerging market countries. With respect to the Fund's fixed income investments, the Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. With respect to the Fund's fixed income investments, the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of stocks comprising the Index. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The MSCI EAFE Net Dividend Index (USD Unhedged) is an unmanaged index of issuers in countries of Europe, Australia, and the Far East represented in U.S. Dollars on a unhedged basis. The Lipper International Multi-Cap Core Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in a variety of market capitalization ranges without concentrating 75% of their equity assets in any one market capitalization range over an extended period of time and typically have 25% to 75% of their assets invested in companies strictly outside of the U.S. with market capitalizations (on a three-year weighted basis) greater than the 250th-largest company in the S&P/Citigroup World ex-U.S. Broad Market Index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.95%. For the periods shown in the bar chart, the highest quarterly return was 35.87% in the Q2 2009, and the lowest quarterly return was -22.93% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (11/30/2006)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | MSCI EAFE Net Dividend Index (USD Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.75%
Fund Inception** rr_AverageAnnualReturnSinceInception (1.97%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Lipper International Multi-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.84%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.79%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 16.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.14%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.05% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 107
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 334
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 579
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,283
1 Year rr_AverageAnnualReturnYear01 16.07%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.95%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 66
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 208
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 362
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 810
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2007 rr_AnnualReturn2007 13.59%
Annual Return 2008 rr_AnnualReturn2008 (42.72%)
Annual Return 2009 rr_AnnualReturn2009 42.87%
Annual Return 2010 rr_AnnualReturn2010 16.42%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.95%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.95%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 35.87% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.87%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -22.93% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.93%)
1 Year rr_AverageAnnualReturnYear01 16.42%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.40%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.82% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.98%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.60% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.51%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 16.27%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.29%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide consistent real (inflation-adjusted) distributions through its maturity date in 2019.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 193% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 193.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 90% of its net assets in inflation-indexed bonds issued by the U.S. Treasury. The Fund may also invest in the following: U.S. Treasury bills, notes, bonds, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government and futures contracts on U.S. Treasury securities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for all Urban Consumers before seasonal adjustment (calculated by the Bureau of Labor Statistics) ("CPI") as the inflation measure for U.S. Treasury Inflation-Protected Securities ("TIPS"). Upon maturity, TIPS return the greater of the original principal or the original principal plus any inflation adj ustments since the bond was issued.

The Fund will invest in short-, intermediate- and long-term inflation-indexed bonds in a "laddered" investment strategy to seek to provide regular monthly distributions adjusted for inflation through the Fund's maturity date in 2019. This laddered structure is expected to result in a portion of the inflation-indexed bonds held by the Fund maturing each year. The laddered structure enables the Fund generally to hold a portion of the inflation-indexed bonds until maturity in order to reduce the long-term impact of changing real interest rates. The portfolio manager will determine the portion of the Fund's inflation-indexed bonds that mature in any given year based on what will best provide the monthly distributions (inflation-adjusted) to shareholders.

The Fund's distribution strategy is designed to provide monthly distributions to Fund shareholders such that all assets of the Fund will be fully distributed to the Fund's shareholders by the Fund's maturity date in 2019. Upon maturity, the Fund is expected to have distributed all of its assets to Fund shareholders and will liquidate by distributing the final monthly distribution. A monthly distribution will primarily consist of the income received from the Fund's portfolio securities and may also include principal from inflation-indexed bonds that have recently matured. The monthly distribution rate will be calculated at the Fund's inception based on the portfolio manager's estimate of the monthly distribution amount that will best allow for the Fund's assets to be fully distributed by the final maturity date of the Fund. This monthly distribution amount will then be adjusted for inflation according to changes in the CP I. During periods of rising inflation the amount of the monthly distribution is expected to increase and during periods of deflation the amount of the monthly distribution is expected to decrease. These distributions are not guaranteed.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Distribution Adjustment Risk: the risk that the Fund's calculated monthly distribution amount may be adjusted higher or lower for reasons other than the inflation adjustment described in the "Fund Distributions" section of this prospectus. The purpose of the adjustments is to enable the Fund to better provide regular monthly distributions through the Fund's final maturity date; however, distributions may be adjusted for different reasons including gains or losses from buying and selling securities that can result from shareholder activity, the value of securities at maturity, monthly distributions, and/or portfolio management decisions. If deflation causes the inflation-adjusted principal of a TIPS issue held to maturity to be lower than its original principal value, the Fund would benefit by receiving the greater original principal value. As a result, the corresponding monthly distribution may be adjusted upward to account for the difference between the lower value and the original principal value guaranteed at maturity

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital US TIPS Real Income 2019 Index. The index is designed to track the performance of a US TIPS based investment solution that provides investors with an explicit hedge against inflation by offering a stream of constant real cash flows until October 31, 2019. The Lipper Retirement Income Funds Average is a total return performance average of funds tracked by Lipper Inc, that are designed to combine professional asset management with professionally managed withdrawals to assist investors in retirement. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index. The fund began operations on 10/30/09. Index comparisons began on 10/31/09.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.58%. For the periods shown in the bar chart, the highest quarterly return was 2.28% in the Q2 2010, and the lowest quarterly return was -0.11% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Barclays Capital US TIPS Real Income 2019 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.83%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Lipper Retirement Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.75%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.86%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.39%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 252
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 439
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 978
1 Year rr_AverageAnnualReturnYear01 4.70%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.52%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.39%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.39%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 40
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 125
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 219
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 493
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2010 rr_AnnualReturn2010 5.03%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.58%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.58%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.28% in the Q2 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.28%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.11% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.11%)
1 Year rr_AverageAnnualReturnYear01 5.03%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.92%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.17% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.55% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.23% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.29% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2019 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.49%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 157
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 274
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 616
1 Year rr_AverageAnnualReturnYear01 5.08%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.86%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide consistent real (inflation-adjusted) distributions through its maturity date in 2029.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 262% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 262.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 90% of its net assets in inflation-indexed bonds issued by the U.S. Treasury. The Fund may also invest in the following: U.S. Treasury bills, notes, bonds, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government and futures contracts on U.S. Treasury securities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for all Urban Consumers before seasonal adjustment (calculated by the Bureau of Labor Statistics) ("CPI") as the inflation measure for U.S. Treasury Inflation-Protected Securities ("TIPS"). Upon maturity, TIPS return the greater of the original principal or the original principal plus any inflation adj ustments since the bond was issued.

The Fund will invest in short-, intermediate- and long-term inflation-indexed bonds in a "laddered" investment strategy to seek to provide regular monthly distributions adjusted for inflation through the Fund's maturity date in 2029. This laddered structure is expected to result in a portion of the inflation-indexed bonds held by the Fund maturing each year. The laddered structure enables the Fund generally to hold a portion of the inflation-indexed bonds until maturity in order to reduce the long-term impact of changing real interest rates. The portfolio manager will determine the portion of the Fund's inflation-indexed bonds that mature in any given year based on what will best provide the monthly distributions (inflation-adjusted) to shareholders.

The Fund's distribution strategy is designed to provide monthly distributions to Fund shareholders such that all assets of the Fund will be fully distributed to the Fund's shareholders by the Fund's maturity date in 2029. Upon maturity, the Fund is expected to have distributed all of its assets to Fund shareholders and will liquidate by distributing the final monthly distribution. A monthly distribution will primarily consist of the income received from the Fund's portfolio securities and may also include principal from inflation-indexed bonds that have recently matured. The monthly distribution rate will be calculated at the Fund's inception based on the portfolio manager's estimate of the monthly distribution amount that will best allow for the Fund's assets to be fully distributed by the final maturity date of the Fund. This monthly distribution amount will then be adjusted for inflation according to changes in the CP I. During periods of rising inflation the amount of the monthly distribution is expected to increase and during periods of deflation the amount of the monthly distribution is expected to decrease. These distributions are not guaranteed.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Distribution Adjustment Risk: the risk that the Fund's calculated monthly distribution amount may be adjusted higher or lower for reasons other than the inflation adjustment described in the "Fund Distributions" section of this prospectus. The purpose of the adjustments is to enable the Fund to better provide regular monthly distributions through the Fund's final maturity date; however, distributions may be adjusted for different reasons including gains or losses from buying and selling securities that can result from shareholder activity, the value of securities at maturity, monthly distributions, and/or portfolio management decisions. If deflation causes the inflation-adjusted principal of a TIPS issue held to maturity to be lower than its original principal value, the Fund would benefit by receiving the greater original principal value. As a result, the corresponding monthly distribution may be adjusted upward to account for the difference between the lower value and the original principal value guaranteed at maturity

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Institutional Class shares. The Administrative Class of the Fund had not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital U.S. TIPS Real Income 2029 Index. The index is designed to track the performance of a US TIPS based investment solution that provides investors with an explicit hedge against inflation by offering a stream of constant real cash flows until October 31, 2029. The Lipper Retirement Income Funds Average is a total return performance average of funds tracked by Lipper Inc, that are designed to combine professional asset management with professionally managed withdrawals to assist investors in retirement. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index. The Fund began operations on 10/30/09. The index comparisons began on 10/31/09.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.40%. For the periods shown in the bar chart, the highest quarterly return was 4.80% in the Q2 2010, and the lowest quarterly return was -1.16% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Barclays Capital US TIPS Real Income 2029 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.93%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.25%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Lipper Retirement Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.75%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.86%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.39%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 252
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 439
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 978
1 Year rr_AverageAnnualReturnYear01 6.99%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.49%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.39%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.39%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 40
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 125
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 219
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 493
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2010 rr_AnnualReturn2010 7.31%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.40%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.40%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 4.80% in the Q2 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.80%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.16% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.16%)
1 Year rr_AverageAnnualReturnYear01 7.31%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.88%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.24% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.02% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.73% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.78% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Income 2029 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.49%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 157
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 274
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 616
1 Year rr_AverageAnnualReturnYear01 7.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.74%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 335% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 335.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks its investment objective by investing under normal circumstances at least 80% of its net assets in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations. Assets not invested in inflation-indexed bonds may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. "Real return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. Effective duration takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Durations for real return bonds, which are based on real yields, are converted to nominal durations through a conversion factor, typically between 20% and 90% of the respective real duration. All security holdings will be measured in effective (nominal) duration terms. Similarly, the effective duration of the Barclays Capital U.S. Treasury Inflation Notes 10+ Years Index will be calculated using the same conversion factors. The eff ective duration of this Fund normally varies within four years (plus or minus) of the effective duration of the Barclays Capital U.S. Treasury Inflation Notes 10+ Years Index, which as of June 30, 2011, as converted, was 7.22 years.

The Fund invests primarily in investment grade securities, but may invest up to 20% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund also may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. The Fund may also invest up to 10% of its total assets in preferred stocks.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may gain exposure to the commodity markets by investing in commodity-linked derivatives. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Class P and Administrative Class of the Fund have not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Treasury Inflation Notes 10+ Year Index is an unmanaged index market comprised of U.S. Treasury Inflation Protected securities with maturities of over 10 years. The Lipper Treasury Inflation-Protected Securities Fund Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in inflation-indexed fixed income securities issued in the United States. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The Fund began operations on 11/12/01. Index comparisons began on 10/31/01.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.96%. For the periods shown in the bar chart, the highest quarterly return was 10.63% in the Q3 2002, and the lowest quarterly return was -8.02% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (11/12/2001)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Barclays Capital U.S. Treasury Inflation Notes: 10+ Year Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.60%
5 Years rr_AverageAnnualReturnYear05 5.06%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.04%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Lipper Treasury Inflation-Protected Securities Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.86%
5 Years rr_AverageAnnualReturnYear05 4.32%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.76%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81% [54]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 259
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 450
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,002
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56% [54]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 701
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2002 rr_AnnualReturn2002 23.36%
Annual Return 2003 rr_AnnualReturn2003 13.01%
Annual Return 2004 rr_AnnualReturn2004 12.94%
Annual Return 2005 rr_AnnualReturn2005 5.07%
Annual Return 2006 rr_AnnualReturn2006 (2.67%)
Annual Return 2007 rr_AnnualReturn2007 11.49%
Annual Return 2008 rr_AnnualReturn2008 (6.06%)
Annual Return 2009 rr_AnnualReturn2009 16.43%
Annual Return 2010 rr_AnnualReturn2010 11.09%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.96%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.96%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 10.63% in the Q3 2002
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.63%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -8.02% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.02%)
1 Year rr_AverageAnnualReturnYear01 11.09%
5 Years rr_AverageAnnualReturnYear05 5.69%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.25%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.32% [84]
5 Years rr_AverageAnnualReturnYear05 3.42% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.84% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.70% [84]
5 Years rr_AverageAnnualReturnYear05 3.54% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.72% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Real Return Asset Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66% [54]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 211
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 368
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 822
1 Year rr_AverageAnnualReturnYear01 10.98%
5 Years rr_AverageAnnualReturnYear05 5.61%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.21%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 344% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 344.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in real estate-linked derivative instruments backed by a portfolio of inflation-indexed securities and other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in real estate-linked derivative instruments, including swap agreements, options, futures, options on futures and structured notes. The value of real estate-linked derivative instruments may be affected by risks similar to those associated with direct ownership of real estate. Real estate values can fluctuate due to losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, property tax rates, regulatory limitations on rents, zoning laws and operating expenses. The Fund may also invest directly in real estate investment trusts ( "REIT") and in common and preferred stocks as well as convertible securities of issuers in real estate-related industries. The Fund may also invest in exchange- traded funds.

The Fund typically will seek to gain exposure to the real estate market by investing in REIT total return swap agreements. In a typical REIT swap agreement, the Fund will receive the price appreciation (or depreciation) of a REIT index or portion of an index, from the counterparty to the swap agreement in exchange for paying the counterparty an agreed-upon fee. Investments in REIT swap agreements may be susceptible to additional risks, similar to those associated with direct investment in REITs, including changes in the value of underlying properties, defaults by borrowers or tenants, revisions to the Internal Revenue Code of 1986, as amended (the "Code"), changes in interest rates and poor performance by those managing the REITs. Assets not invested in real estate-linked derivative instruments may be invested in inflation-indexed securities and other Fixed Income Instruments, including derivative Fixed Income Instrument s. In addition, Index derivatives may be purchased with a fraction of the assets that would be needed to purchase the securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The average portfolio duration of the fixed income portion of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securitie s and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buybacks or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks. The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgageor asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both real estate derivatives and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones U.S. Select Real Estate Investment Trust (REIT) Total Return Index is a subset of the Dow Jones Americas Select Real Estate Securities Index (RESI) and includes only REITs and REIT-like securities. The objective of the index is to measure the performance of publicly traded real estate securities. The indexes are designed to serve as proxies for direct real estate investment, in part by excluding companies whose performance may be driven by factors other than the value of real estate. The Lipper Real Estate Funds Average is a total return performance average of funds tracked by Lipper, Inc, that invests at least 65% of its portfolio in equity securities of domestic and foreign companies engaged in the real estate industry. The Fund began operations on 10/30/03. Index comparisons began on 10/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com /DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 17.28%. For the periods shown in the bar chart, the highest quarterly return was 42.86% in the Q3 2009, and the lowest quarterly return was -46.39% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2003)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Lipper Real Estate Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 27.38%
5 Years rr_AverageAnnualReturnYear05 2.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.35%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Dow Jones U.S. Select REIT Total Return Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 28.07%
5 Years rr_AverageAnnualReturnYear05 2.27%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.78%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.01% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 322
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 558
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,236
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.16% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 118
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 368
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 638
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,409
1 Year rr_AverageAnnualReturnYear01 38.90%
5 Years rr_AverageAnnualReturnYear05 4.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.42%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2004 rr_AnnualReturn2004 42.49%
Annual Return 2005 rr_AnnualReturn2005 12.60%
Annual Return 2006 rr_AnnualReturn2006 27.39%
Annual Return 2007 rr_AnnualReturn2007 (12.09%)
Annual Return 2008 rr_AnnualReturn2008 (47.15%)
Annual Return 2009 rr_AnnualReturn2009 54.55%
Annual Return 2010 rr_AnnualReturn2010 39.35%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 17.28%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 17.28%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 42.86% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 42.86%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -46.39% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (46.39%)
1 Year rr_AverageAnnualReturnYear01 39.35%
5 Years rr_AverageAnnualReturnYear05 4.97%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.92%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 22.98% [84]
5 Years rr_AverageAnnualReturnYear05 (1.08%) [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.96% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 24.37% [84]
5 Years rr_AverageAnnualReturnYear05 0.79% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.64% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealEstateRealReturn Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86% [53]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 477
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,061
1 Year rr_AverageAnnualReturnYear01 39.40%
5 Years rr_AverageAnnualReturnYear05 4.88%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.82%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 0% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 0.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2010 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2010, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRet irement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, wi th an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2010 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2010 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon not to exceed the year 2010.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

*The year-to-date return as of June 30, 2011 is 3.59%. For the periods shown in the bar chart, the highest quarterly return was 10.78% in the Q2 2009, and the lowest quarterly return was -1.16% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Lipper Mixed-Asset Target 2010 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.37%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Dow Jones Real Return(SM) 2010 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.40%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.37% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.01% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 321
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 557
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,235
1 Year rr_AverageAnnualReturnYear01 10.52%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.74%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.62% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 400
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 692
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,523
1 Year rr_AverageAnnualReturnYear01 10.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.38%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.12% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.76% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 423
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 944
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 23.41%
Annual Return 2010 rr_AnnualReturn2010 10.77%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.59%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.59%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 10.78% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.78%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.16% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.16%)
1 Year rr_AverageAnnualReturnYear01 10.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.02%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.94% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.78% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.96% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.49% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2010 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.22% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.86% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 476
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,060
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2020 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2020, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as a Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2020 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2020 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2016, to December 31, 2020.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.48%. For the periods shown in the bar chart, the highest quarterly return was 13.37% in the Q2 2009, and the lowest quarterly return was -2.65% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Dow Jones Real Return(SM) 2020 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.25%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.01%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Lipper Mixed-Asset Target 2020 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.51%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.01% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 321
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 557
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,235
1 Year rr_AverageAnnualReturnYear01 10.17%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.55%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 400
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 692
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,523
1 Year rr_AverageAnnualReturnYear01 9.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.16%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.76% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 423
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 944
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 24.76%
Annual Return 2010 rr_AnnualReturn2010 10.41%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.48%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.48%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.37% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.37%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.65% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.65%)
1 Year rr_AverageAnnualReturnYear01 10.41%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.76%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.56% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.56% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.73% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.43% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2020 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.21% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.86% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 476
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,060
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 3% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 3.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2030 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2030. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRetirement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as a Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2030 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2030 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2026 to December 31, 2030.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.59%. For the periods shown in the bar chart, the highest quarterly return was 14.92% in the Q2 2009, and the lowest quarterly return was -4.19% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Lipper Mixed-Asset Target 2030 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.93%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Dow Jones Real Return(SM) 2030 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.38%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.94%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.42% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.06% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 108
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 337
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 584
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,293
1 Year rr_AverageAnnualReturnYear01 10.64%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.53%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.67% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.31% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 133
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 415
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 718
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,579
1 Year rr_AverageAnnualReturnYear01 10.14%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.14%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.17% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.81% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 259
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 450
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,003
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 27.85%
Annual Return 2010 rr_AnnualReturn2010 10.89%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.59%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.59%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 14.92% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 14.92%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.19% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.19%)
1 Year rr_AverageAnnualReturnYear01 10.89%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.77%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.71% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.52%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.02% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.53% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2030 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.27% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.91% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 93
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 291
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 505
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,120
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 77% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 77.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in Institutional Class or, as applicable, Class M shares of any funds of the Trust, except the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset, and PIMCO RealRetirement® Funds, as well as in funds of PIMCO Equity Series, an affiliated open-end investment company ("Underlying PIMCO Funds"). Though it is anticipated that the Fund will not currently invest in the PIMCO StocksPLUS® TR Short Strategy Fund, the Fund may invest in this Underlying PIMCO Fund in the future, without shareholder approval, at the discretion of Pacific Investment Management Company LLC ("PIMCO"). The Fund invests its assets in shares of the Underlying PIMCO Funds and does not invest directly in stocks or bonds of other issuers. Research Affiliates, LLC, the Fund's asset allocation sub-adviser, determines how the Fund allocates and reallocates its assets among the Unde rlying PIMCO Funds. In doing so, the asset allocation sub-adviser seeks concurrent exposure to a broad spectrum of asset classes.

The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund's investment in a particular Underlying PIMCO Fund normally will not exceed 50% of its total assets. The Fund's combined investments in the PIMCO Fundamental IndexPLUS® TR, PIMCO International StocksPLUS® TR Strategy (Unhedged), PIMCO International StocksPLUS® TR Strategy (U.S. Dollar-Hedged), PIMCO Small Cap StocksPLUS® TR, PIMCO StocksPLUS®, PIMCO StocksPLUS® Long Duration, PIMCO StocksPLUS® Total Return, PIMCO EqS Emerging Markets and PIMCO EqS PathfinderTM Funds normally will not exceed 50% of its total assets. In addition, the Fund's combined investments in the PIMCO CommodityRealReturn Strategy®, PIMCO Real Return, PIMCO Real Return Asset and PIMCO RealEstateRealReturn Strategy Funds normally will not exceed 75% of its total assets. The Fund's assets are not allocated according to a predetermined blend of shares of the Underlying PIMCO Funds. Instead, when making allocation decisions among the Underlying PIMCO Funds, the Fund's asset allocation sub-adviser considers various quantitative and qualitative data relating to the U.S. and foreign economies and securities markets. These data include projected growth trends in the U.S. and foreign economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity and fixed income markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances and labor information. The Fund's asset allocation sub-adviser has the flexibility to reallocate the Fund's assets among any or all of the asset class exposures represented by the Underlying PIMCO Funds based on its ongoing analyses of the equity, fixed income and commodity markets. While these analyses are performed daily, material shifts in asset class exposures typically take place over longer periods of time. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund is a "fund of funds," which is a term used to describe mutual funds that pursue their investment objective by investing in other mutual funds. In addition to investing in the Underlying PIMCO Funds, at the discretion of PIMCO and without shareholder approval, the Fund may invest in additional PIMCO Funds created in the future.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Underlying PIMCO Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Underlying PIMCO Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Underlying PIMCO Funds to achieve their investment objectives

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

The principal risks of investing in the Underlying PIMCO Funds, and consequently the Fund, which could adversely affect its net asset value, yield and total return, are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital U.S. TIPS 1-10 Year Index. The Fund's secondary benchmark is created by adding 5% to the annual percentage change in the Consumer Price Index ("CPI") (specifically, the CPI for All Urban Consumers). The Fund believes that this secondary benchmark reflects the Fund's long-term investment strategy more accurately than the Barclays Capital U.S. TIPS 1-10 Year Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), Administrative Class shares (December 31, 2002) and Class D shares (April 30, 2003), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class P, Administrative Class and Class D shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. TIPS: 1-10 Year is an unmanaged index market comprised of U.S. Treasury Inflation Protected securities having a maturity of at least 1 year and less than 10 years. The CPI + 500 Basis Points benchmark is created by adding 5% to the annual percentage change in the CPI. This index reflects non-seasonally adjusted returns. The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. There can be no guarantee that the CPI or other indexes will reflect the exact level of inflation at any given time. The Lipper Flexible Portfolio Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that allocate their investments across various asset classes, including domestic common stocks, bond and money market instruments with a focus on total return.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.91%. For the periods shown in the bar chart, the highest quarterly return was 12.61% in the Q2 2009, and the lowest quarterly return was -8.26% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2002)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Consumer Price Index + 500 Basis Points (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.68%
5 Years rr_AverageAnnualReturnYear05 7.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.58%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Lipper Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.03%
5 Years rr_AverageAnnualReturnYear05 3.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.09%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Barclays Capital U.S. TIPS: 1-10 Year Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.22%
5 Years rr_AverageAnnualReturnYear05 5.41%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.78%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.225%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.215% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [72]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.155% [81]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 118
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 367
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 636
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,403
1 Year rr_AverageAnnualReturnYear01 13.45%
5 Years rr_AverageAnnualReturnYear05 5.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.89%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.375%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.365% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [72]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.305% [81]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 133
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 414
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 716
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,573
1 Year rr_AverageAnnualReturnYear01 13.36%
5 Years rr_AverageAnnualReturnYear05 5.69%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.56%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.225%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.965% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [72]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.905% [81]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 289
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 501
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,114
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2003 rr_AnnualReturn2003 15.98%
Annual Return 2004 rr_AnnualReturn2004 11.85%
Annual Return 2005 rr_AnnualReturn2005 6.48%
Annual Return 2006 rr_AnnualReturn2006 5.27%
Annual Return 2007 rr_AnnualReturn2007 8.68%
Annual Return 2008 rr_AnnualReturn2008 (15.48%)
Annual Return 2009 rr_AnnualReturn2009 22.99%
Annual Return 2010 rr_AnnualReturn2010 13.68%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.91%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.91%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 12.61% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.61%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -8.26% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.26%)
1 Year rr_AverageAnnualReturnYear01 13.68%
5 Years rr_AverageAnnualReturnYear05 6.22%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.16%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.56% [84]
5 Years rr_AverageAnnualReturnYear05 3.65% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.73% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.85% [84]
5 Years rr_AverageAnnualReturnYear05 3.78% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.50% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO All Asset Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.325%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.065% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [72]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.005% [81]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 320
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 555
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,230
1 Year rr_AverageAnnualReturnYear01 13.68%
5 Years rr_AverageAnnualReturnYear05 6.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.07%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 7.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2040 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2040, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The Funds' primary difference is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRetirement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as a Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2040 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2040 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2036, to December 31, 2040.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.16%. For the periods shown in the bar chart, the highest quarterly return was 21.03% in the Q2 2009, and the lowest quarterly return was -5.98% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Dow Jones Real Return(SM) 2040 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.38%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.80%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Lipper Mixed-Asset Target 2040 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.39%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.68%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.52% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.13% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 115
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 359
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 622
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,374
1 Year rr_AverageAnnualReturnYear01 13.36%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.20%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.77% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.38% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 140
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 437
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 755
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,657
1 Year rr_AverageAnnualReturnYear01 12.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.79%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.27% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.88% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 90
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 281
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 488
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,084
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 36.00%
Annual Return 2010 rr_AnnualReturn2010 13.60%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.16%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.16%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 21.03% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 21.03%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -5.98% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.98%)
1 Year rr_AverageAnnualReturnYear01 13.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.41%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.55% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.27%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.76% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.80% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2040 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.95%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.37% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.98% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 100
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 312
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 542
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,203
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 9% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 9.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2050 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2050, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as a Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Class P of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2040+ Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, Commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2050+ Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon exceeding the year 2045.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.64%. For the periods shown in the bar chart, the highest quarterly return was 20.72% in the Q2 2009, and the lowest quarterly return was -6.84% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Lipper Mixed-Asset Target 2050+ Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.50%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.62%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Dow Jones Real Return(SM) 2040+ Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.42%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.51% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.13% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 115
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 359
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 622
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,374
1 Year rr_AverageAnnualReturnYear01 14.33%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.56%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.76% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.38% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 140
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 437
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 755
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,657
1 Year rr_AverageAnnualReturnYear01 13.92%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.19%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.26% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.88% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 90
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 281
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 488
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,084
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 38.82%
Annual Return 2010 rr_AnnualReturn2010 14.56%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.64%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.64%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 20.72% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.84% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.84%)
1 Year rr_AverageAnnualReturnYear01 14.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.79%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.41% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.49% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.38% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.36% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2050 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.95%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36% [23],[52]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.98% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 100
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 312
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 542
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,203
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2015 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2015 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2015, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments. pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2015 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2015 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.58%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 102
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2015 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.83%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 127
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2015 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.33%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2015 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.43%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2025 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2025 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2025, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2025 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2025 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.67% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.01% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 322
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2025 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.92% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 400
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2025 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.42% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.76% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2025 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.52% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.86% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2035 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2035 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2035, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2035 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2035 Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.80% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.06% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 108
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 337
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2035 Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.05% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.31% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 133
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 415
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2035 Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.55% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.81% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 259
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO RealRetirement 2035 Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65% [50]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[73]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.91% [83]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 93
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 290
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the Russell 2000® Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 571% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 571.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the Russell 2000® Index by investing under normal circumstances in Russell 2000® Index derivatives, backed by a diversified portfolio of Fixed Income Instruments actively managed by Pacific Investment Management Company LLC ("PIMCO"). "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses Russell 2000® Index derivatives instead of Russell 2000® Index stocks to attempt to equal or exceed the daily performance of the Russell 2000® Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of Russell 2000® Index derivatives should closely track changes in the value of the index. However, Russell 2000® Index derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market , with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000® Index, which represents approximately 10% of the total market capitalization of the Russell 3000® Index. As of June 30, 2011, the Russell 2000® Index's average market capitalization (dollar-weighted) was $737 million. The Fund seeks to remain invested in Russell 2000® Index derivatives or Russell 2000® Index stocks even when the Russell 2000® Index is declining.

Though the Fund does not normally invest directly in Russell 2000® Index securities, when Russell 2000® Index derivatives appear to be overvalued relative to the Russell 2000® Index, the Fund may invest all of its assets in a "basket" of Russell 2000® Index stocks. The Fund also may invest in exchange traded funds based on the Russell 2000® Index.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instr uments that are economically tied to emerging market countries. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Russell 2000® Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of Russell 2000® Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000 Index and is considered to be representative of the small cap market in general. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 8.10%. For the periods shown in the bar chart, the highest quarterly return was 30.73% in the Q2 2009 , and the lowest quarterly return was -23.48% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2006)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Russell 2000 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 26.85%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.87%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Lipper Specialty Diversified Equity Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.62%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.84%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.69%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.96% [55]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 98
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 306
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 531
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,178
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.04% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.13% [55]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 115
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 359
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 622
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,375
1 Year rr_AverageAnnualReturnYear01 38.70%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.04%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.69%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.71% [55]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 883
Annual Return 2007 rr_AnnualReturn2007 1.64%
Annual Return 2008 rr_AnnualReturn2008 (31.05%)
Annual Return 2009 rr_AnnualReturn2009 44.30%
Annual Return 2010 rr_AnnualReturn2010 39.14%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 8.10%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 8.10%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 30.73% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 30.73%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -23.48% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.48%)
1 Year rr_AverageAnnualReturnYear01 39.14%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.44%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 31.38% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.68% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 25.25% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.30% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Small Cap StocksPLUS TR Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81% [55]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 259
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 450
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,002
1 Year rr_AverageAnnualReturnYear01 38.99%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.34%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 225% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 225.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the S&P 500 Index by investing under normal circumstances in S&P 500 Index derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund uses S&P 500 derivatives in addition to or in place of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the S&P 500 Index. The value of S&P 500 derivatives should closely track changes in the value of the index. However, S&P 500 Index derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which is normally not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in a "basket" of S&P 500 stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For the period prior to the inception date of the Class P shares (April 30, 2008), performance information shown in the bar chart and table is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Lipper Large-Cap Core Fund Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 75% of their equity assets in companies with market capitalizations (on a three-year weighted basis) greater than 300% of the dollar-weighted median market capitalization of the middle 1,000 securities of the S&P SuperComposite 1500 Index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 7.50%. For the periods shown in the bar chart, the highest quarterly return was 24.70% in the Q2 2009, and the lowest quarterly return was -25.89% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
10 Years rr_AverageAnnualReturnYear10 1.41%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Lipper Large-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.87%
5 Years rr_AverageAnnualReturnYear05 1.96%
10 Years rr_AverageAnnualReturnYear10 1.34%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 240
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 417
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 930
1 Year rr_AverageAnnualReturnYear01 18.02%
5 Years rr_AverageAnnualReturnYear05 2.05%
10 Years rr_AverageAnnualReturnYear10 1.32%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 17.78%
5 Years rr_AverageAnnualReturnYear05 1.91%
10 Years rr_AverageAnnualReturnYear10 1.12%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 628
Annual Return 2001 rr_AnnualReturn2001 (11.47%)
Annual Return 2002 rr_AnnualReturn2002 (19.88%)
Annual Return 2003 rr_AnnualReturn2003 29.63%
Annual Return 2004 rr_AnnualReturn2004 10.46%
Annual Return 2005 rr_AnnualReturn2005 3.22%
Annual Return 2006 rr_AnnualReturn2006 14.72%
Annual Return 2007 rr_AnnualReturn2007 6.45%
Annual Return 2008 rr_AnnualReturn2008 (45.42%)
Annual Return 2009 rr_AnnualReturn2009 42.04%
Annual Return 2010 rr_AnnualReturn2010 18.20%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 7.50%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 7.50%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 24.70% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.70%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -25.89% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.89%)
1 Year rr_AverageAnnualReturnYear01 18.20%
5 Years rr_AverageAnnualReturnYear05 2.28%
10 Years rr_AverageAnnualReturnYear10 1.61%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.75% [84]
5 Years rr_AverageAnnualReturnYear05 0.18% [84]
10 Years rr_AverageAnnualReturnYear10 (0.09%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.58% [84]
5 Years rr_AverageAnnualReturnYear05 0.71% [84]
10 Years rr_AverageAnnualReturnYear10 0.36% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
1 Year rr_AverageAnnualReturnYear01 18.10%
5 Years rr_AverageAnnualReturnYear05 2.23%
10 Years rr_AverageAnnualReturnYear10 1.61%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmarks, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 339% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 339.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark indexes, the S&P 500 Index and a secondary blended index (as described below, and together with the S&P 500 Index, the "Indexes"), by investing under normal circumstances in S&P 500 Index derivatives, backed by a diversified portfolio of long-term Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses S&P 500 Index derivatives instead of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the Indexes. The Fund typically will seek to gain long exposure to the S&P 500 Index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of S&P 500 Index derivatives should closely track chan ges in the value of the S&P 500 Index. However, S&P 500 Index derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies within two years (plus or minus) of the duration of the Barclays Capital Long-Term Government/Credit Index, which as of June 30, 2011 was 13.22 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives and/or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 Index securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in S&P 500 Index stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominate d in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and Fixed Income Instruments are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the S&P 500 Index. The Fund's secondary benchmark is a blend constructed by adding the returns of the S&P 500 Index to the Barclays Capital Long-Term Government/Credit Index and subtracting 3-Month LIBOR (London Interbank Offered Rate). This blend is intended to represent a portfolio which obtains 100% exposure to the S&P 500 Index via derivatives in exchange for the payment of 3-Month LIBOR, and invests the capital in a long duration bond portfolio. The Fund believes that this self-blended benchmark reflects the Fund's investment strategy more accurately than the S&P 500 Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The secondary benchmark is a blend constructed by adding the returns of the S&P 500 Index to the Barclays Capital Long-Term Government/Credit Index and subtracting 3-Month LIBOR. The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Barclays Capital Long-Term Government/Credit Index is an unmanaged index of U.S. Government or Investment Grade Credit Securities having a maturity of 10 years or more. The 3 Month LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term mo ney (3 months) in England's Eurodollar market. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 9.73%. For the periods shown in the bar chart, the highest quarterly return was 24.82% in the Q3 2009, and the lowest quarterly return was -17.14% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2007)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | Lipper Specialty Diversified Equity Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.62%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.17%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
Fund Inception** rr_AverageAnnualReturnSinceInception (2.49%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | S&P 500 Index + Barclays Capital Long-Term Government/Credit Index - 3 Month LIBOR (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 27.36%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.29%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85% [56]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,049
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.60% [56]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 192
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 335
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 750
Annual Return 2008 rr_AnnualReturn2008 (33.13%)
Annual Return 2009 rr_AnnualReturn2009 27.13%
Annual Return 2010 rr_AnnualReturn2010 27.60%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 9.73%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 9.73%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 24.82% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.82%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -17.14% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.14%)
1 Year rr_AverageAnnualReturnYear01 27.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.74%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.83% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.54%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Long Duration Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 20.15% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.19% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 476% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 476.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the S&P 500 Index by investing under normal circumstances in S&P 500 Index derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and similar instruments issued by various U.S. and non-U.S. public-or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses S&P 500 Index derivatives instead of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the S&P 500 Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of S&P 500 Index derivatives closely track changes in the value of the S&P 500 Index. However, S&P 500 Index derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate secu rities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 Index securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in a "basket" of S&P 500 Index stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's Prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominat ed in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008) and Class D shares (July 31, 2003), performance information shown in the table for these classes is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class P and Class D shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The index focuses on the large-cap segment of the U.S. equities market. The Lipper Large-Cap Core Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 75% of their equity assets in companies with market capitalizations (on a three-year weighted basis) greater than 300% of the dollar-weighted median market capitalization of the middle 1,000 securities of the S&P Super-Composite 1500 Index. The Fund began operations on 6/28/02. Index comparisons began on 6/30/02.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 8.04%. For the periods shown in the bar chart, the highest quarterly return was 25.83% in the Q2 2009, and the lowest quarterly return was -22.30% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/28/2002)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.91%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Lipper Large-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.87%
5 Years rr_AverageAnnualReturnYear05 1.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.58%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.89%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 91
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 284
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 493
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,096
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 106
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 331
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 574
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,271
1 Year rr_AverageAnnualReturnYear01 24.95%
5 Years rr_AverageAnnualReturnYear05 4.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.93%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
Annual Return 2003 rr_AnnualReturn2003 30.47%
Annual Return 2004 rr_AnnualReturn2004 13.60%
Annual Return 2005 rr_AnnualReturn2005 4.15%
Annual Return 2006 rr_AnnualReturn2006 13.81%
Annual Return 2007 rr_AnnualReturn2007 8.51%
Annual Return 2008 rr_AnnualReturn2008 (42.97%)
Annual Return 2009 rr_AnnualReturn2009 41.30%
Annual Return 2010 rr_AnnualReturn2010 25.42%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 8.04%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 8.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 25.83% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 25.83%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -22.30% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.30%)
1 Year rr_AverageAnnualReturnYear01 25.42%
5 Years rr_AverageAnnualReturnYear05 4.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.33%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 22.44% [84]
5 Years rr_AverageAnnualReturnYear05 0.63% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.14% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.45% [84]
5 Years rr_AverageAnnualReturnYear05 1.69% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.61% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS Total Return Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.74%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 76
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 237
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 411
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 918
1 Year rr_AverageAnnualReturnYear01 25.38%
5 Years rr_AverageAnnualReturnYear05 4.46%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.28%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Short Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the inverse return of its benchmark, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 94% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 94.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in short positions with respect to the Dow Jones--UBS Commodity Index Total Return (the "Index"), including commodity-linked derivative instruments backed by an actively managed, low volatility portfolio of Fixed Income Instruments, such that the Fund's net asset value may vary inversely with the value of the Index on a daily basis, subject to certain limitations summarized below. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will generally benefit when the price of the Index is declining. When the Index is rising, the Fund will generally not perform as well. Fixed Income Instruments owned by the Fund may also benefit or detract from the Fund's net asset value. The Fund is designed for investors seeking to take advantage of declines in the value of the Index, or investors wishing to hedge existing long commodities positions. However, the Fund is not designed or expected to produce returns which replicate the inverse of the performance of the Index due to compounding, Pacific Investment Management Company LLC's ("PIMCO") active management, Fund fees and expenses and other factors discussed below.

The Fund will maintain short positions through the use of a combination of commodity-linked derivative instruments, including swap agreements, futures, options on futures, commodity index-linked notes and commodity options that provide short exposure to the investment returns of the commodities futures markets. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overall market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments. While the Fund will, under normal circumstances, invest primarily in Index short positions backed by a portfolio of Fixed Income Instruments, PIMCO may reduce the Fund's exposure to Index short positions when PIMCO deems it appropriate to do so. Additionally, the Fu nd may purchase call options on Index futures contracts or on other similar Index derivatives in an effort to limit the total potential decline in the Fund's net asset value during a market in which prices of commodities positions are rising or expected to rise. Because the Fund invests primarily in short positions, gains and losses in the Fund will primarily be taxable as short-term gains or losses. However, a portion of the gains or losses from certain types of derivatives, including futures contracts in which the Fund may choose to invest, will be taxable as long-term gains or losses.

The Fund will seek to gain short exposure to the commodity futures markets primarily through investments in swap agreements and futures, and through investments in the PIMCO Cayman Commodity Fund IV Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). The Subsidiary is advised by PIMCO, and has the same investment objective as the Fund. As discussed in greater detail elsewhere in the prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments inversely linked to certain commodity indices and instruments inversely linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instru ments may specify short exposure to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the inverse returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its short exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser short exposure to that index than the value of the Fund's net assets, or greater or lesser short exposure to a subset of commodities than is represented by a particular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional short exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

The Fund may also invest in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the inverse performance of commodity indices. These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities futures market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest in investment grade securities that are rated at least Baa, including up to 10% of its total assets in securities rated below A, by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar denominated securitie s of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to within 1% (plus or minus) of the foreign currency exposure of the Index, which as of June 30, 2011, was 0%. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.

Although the Fund uses derivatives and other short positions to gain exposures that may vary inversely with the performance of the Index on a daily basis, the Fund as a whole is not designed or expected to produce returns which replicate the inverse of the performance of the Index, and the degree of variation could be substantial, particularly over longer periods. Because the value of the Fund's derivatives short positions move in the opposite direction from the value of the Index each day, for periods greater than one day, the effect of compounding may result in the performance of these derivatives positions, and the Fund's performance attributable to those positions, to be either greater than or less than the inverse of the Index performance for such periods, and the extent of the variation could be substantial due to market volatility and other factors. In addition, the combination of income and capital gains or losse s derived from the Fixed Income Instruments serving as cover for the Fund's short positions, coupled with the ability of the Fund to reduce or limit short exposure, as described above, may result in an imperfect inverse correlation between the performance of the Index and the performance of the Fund. It is possible for the Fund to experience a negative return when the Index is declining, and vice versa. Further, there are a number of other reasons why changes in the value of derivatives positions may not correlate exactly (either positively or inversely) with an index or which may otherwise prevent a mutual fund or its positions from achieving such correlation.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Dow Jones-UBS Commodity Index Total Return. The index is an unmanaged index composed of futures contracts on 19 physical commodities. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.16%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 106
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 331
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 574
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,271
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.41%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 131
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 409
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 708
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,556
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 81
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 252
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 439
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 978
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.01%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.89%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 91
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 284
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 493
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,096
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return through the implementation of short investment positions on the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 483% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 483.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing primarily in short positions with respect to the S&P 500 Index (the "Index") or specific Index securities, backed by a portfolio of Fixed Income Instruments, such that the Fund's net asset value may vary inversely with the value of the Index on a daily basis, subject to certain limitations summarized below. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will generally benefit when the price of the Index is declining. When the Index is rising, the Fund will generally not perform as well. Fixed Income Instruments owned by the Fund may also benefit or detract from the Fund's net asset value. The Fund is designed for investors seeking to take advantage of declines in the value of the Index, or investors wishing to hedge existing long equity positions. However, the Fund is not designed or expected to produce returns which replicate the inverse of the performance of the Index due to compounding, Pacific Investment Management Company LLC's ("PIMCO") active management, Fund fees and expenses and other factors discussed below.

The Fund will maintain short positions through the use of a combination of derivatives, including options, futures, options on futures, and swaps. The Fund may invest, without limitation, in such instruments. While the Fund will, under normal circumstances, invest primarily in Index short positions backed by a portfolio of Fixed Income Instruments, PIMCO may reduce the Fund's exposure to Index short positions when PIMCO deems it appropriate to do so. Additionally, the Fund may purchase call options on Index futures contracts or on other similar Index derivatives in an effort to limit the total potential decline in the Fund's net asset value during a market in which prices of securities are rising or expected to rise. Because the Fund invests primarily in short positions, gains and losses in the Fund will primarily be taxable as short-term gains or losses. However, a portion of the gains or losses from certain types of de rivatives, including futures contracts on broad-based stock indexes in which the Fund may choose to invest, will be taxable as long-term gains or losses.

Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. PIMCO actively manages the fixed income assets held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and c orporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch") or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund is non-divers ified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. The Fund may also invest up to 10% of its total assets in preferred stocks.

Although the Fund uses derivatives and other short positions to gain exposures that may vary inversely with the performance of the Index on a daily basis, the Fund as a whole is not designed or expected to produce returns which replicate the inverse of the performance of the Index, and the degree of variation could be substantial, particularly over longer periods. Because the value of the Fund's derivatives short positions move in the opposite direction from the value of the Index each day, for periods greater than one day, the effect of compounding may result in the performance of these derivatives positions, and the Fund's performance attributable to those positions, to be either greater than or less than the inverse of the Index performance for such periods, and the extent of the variation could be substantial due to market volatility and other factors. In addition, the combination of income and capital gains or losse s derived from the Fixed Income Instruments serving as cover for the Fund's short positions, coupled with the ability of the Fund to reduce or limit short exposure, as described above, may result in an imperfect inverse correlation between the performance of the Index and the performance of the Fund. It is possible for the Fund to experience a negative return when the Index is declining, and vice versa. Further, there are a number of other reasons why changes in the value of derivatives positions may not correlate exactly (either positively or inversely) with an index or which may otherwise prevent a mutual fund or its positions from achieving such correlation.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the S&P 500 Index. The Fund's performance may vary inversely with the value of the S&P 500 Index on a daily basis, subject to certain limitations. The Fund's secondary benchmark is the Inverse of S&P 500 Index. The Fund believes that the secondary benchmark reflects the Fund's investment strategy more accurately than the S&P 500 Index. It may be reasonable to expect significant differences between the Fund's performance and that of the secondary benchmark, as well as potentially significant differences between the Fund's primary and secondary benchmarks due to compounding and other considerations.

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class D shares (July 31, 2006), performance information shown in the table for Class D is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class D shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The index focuses on the large-cap segment of the U.S. equities market. The Fund's performance may vary inversely with the value of the index on a daily basis, subject to certain limitations. Effective July 31, 2009, the Fund selected the S&P 500 Index as its primary benchmark in replacement of the Inverse of S&P 500 Index, which the Fund retains as its secondary benchmark. The Fund added the S&P 500 Index to facilitate a comparison of the Fund's performance to the S&P 500 Index. The inverse of S&P 500 Index is an approximate negative equivalent of the return of the S&P 500 Index and is calculated by compounding the daily inverse of the S&P 500 Index total return. The S&P 500 Index is an unmanaged market index generally considered repres entative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Lipper Dedicated Short-Bias Fund Average is a total return performance average of funds tracked by Lipper, Inc. that employ portfolio strategies consistently creating a "net short" exposure to the market. This classification also includes short-only funds, i.e., funds that pursue short sales of stock or stock index options. The Fund began operations on 7/23/03. Index comparisons began on 7/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is -3.96%. For the periods shown in the bar chart, the highest quarterly return was 25.08% in the Q4 2008, and the lowest quarterly return was -10.82% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/23/2003)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Lipper Dedicated Short-Bias Fund Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (34.06%)
5 Years rr_AverageAnnualReturnYear05 (15.88%)
Fund Inception** rr_AverageAnnualReturnSinceInception (14.08%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.37%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Inverse of S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (16.18%)
5 Years rr_AverageAnnualReturnYear05 (5.27%)
Fund Inception** rr_AverageAnnualReturnSinceInception (7.32%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.89%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 91
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 284
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 493
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,096
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 106
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 331
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 574
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,271
1 Year rr_AverageAnnualReturnYear01 (8.94%)
5 Years rr_AverageAnnualReturnYear05 2.57%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.81%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.64%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2004 rr_AnnualReturn2004 3.54%
Annual Return 2005 rr_AnnualReturn2005 0.84%
Annual Return 2006 rr_AnnualReturn2006 (6.65%)
Annual Return 2007 rr_AnnualReturn2007 6.38%
Annual Return 2008 rr_AnnualReturn2008 48.56%
Annual Return 2009 rr_AnnualReturn2009 (13.90%)
Annual Return 2010 rr_AnnualReturn2010 (8.48%)
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is -3.96%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (3.96%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 25.08% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 25.08%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -10.82% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.82%)
1 Year rr_AverageAnnualReturnYear01 (8.48%)
5 Years rr_AverageAnnualReturnYear05 3.06%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.27%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (8.84%) [84]
5 Years rr_AverageAnnualReturnYear05 none [84]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.12%) [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (5.48%) [84]
5 Years rr_AverageAnnualReturnYear05 2.09% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.42% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.74%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 76
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 237
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 411
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 918
1 Year rr_AverageAnnualReturnYear01 (8.50%)
5 Years rr_AverageAnnualReturnYear05 2.99%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.21%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide after-tax inflation-protected return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 350% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 350.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 50% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"), with the remainder of the Fund's assets invested in inflation-indexed bonds of varying maturities issued by the U.S. government, its agencies or instrumentalities (such as Treasury Inflation Protected Securities ("TIPS")), and other types of Fixed Income Instruments, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements (such as CPI swaps). "Fixed Income Instruments" include bonds, debt securities and similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. "Real Return" equals total return less the estimated cost of inflation. The average portfolio duration of the fixed income portion of this Fund will normally vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities. The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds.

Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for All Urban Consumers ("CPI") as the inflation measure. Effective duration takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Because market convention for bonds is to use nominal yields to measure duration, duration for real return bonds, which are based on real yields, are converted to nominal durations through a conversion factor. The resulting nominal duration typically can range from 20% and 90% of the respective real duration. All inflation-indexed security holdings w ill be measured in effective (nominal) duration terms.

As part of its principal investment strategies, the Fund's investment in derivatives may consist largely of swaps (including CPI swaps) where the Fund receives inflation-indexed payments. A CPI swap is a fixed maturity, over-the-counter derivative in which the investor receives the "realized" rate of inflation as measured by the CPI over the life of the swap. The investor in turn pays a fixed annualized rate over the life of the swap. This fixed rate is often referred to as the "breakeven inflation" rate and is generally representative of the difference between treasury yields and TIPS yields of similar maturities at the initiation of the swap. CPI swaps are typically in "bullet" format, where all cash flows are exchanged at maturity. The Fund may also invest in municipal inflation-indexed securities.

The Fund may invest in investment-grade securities rated Baa or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund will normally limit its non-U.S. dollar-denominated securities exposure to 5% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund seeks to minimize shareholders' tax liability in connection with the Fund's distribution of realized capital gain by minimizing the net gains available for distribution. In doing so, the Fund typically sells securities when the anticipated performance benefit justifies the resulting gain. This strategy often includes minimizing the sale of securities with large unrealized gain, holding securities long enough to avoid short-term capital gains taxes, selling securities with a higher cost basis first and offsetting capital gains realized in one security by selling another security at a capital loss. In addition, the Fund seeks to minimize distributions that are taxed as ordinary income and not qualified dividend income.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Institutional Class shares. The Administrative Class of the Fund had not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital Municipal Bond 1-10 year Blend (1-12) Index. The index consists of a broad selection of investment-grade general obligation bonds, revenue bonds, insured bonds (including all insured bonds with a Aaa/AAA rating), and prerefunded bonds with maturities of at least 1 year and less than 12 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment grade municipal bonds issued after 12/31/09 having a remaining maturity of at least one year. The Lipper Intermediate Municipal Debt Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that invest in municipal debt issues with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.67%. For the periods shown in the bar chart, the highest quarterly return was 1.12% in the Q3 2010, and the lowest quarterly return was -0.16% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Lipper Intermediate Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.05%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Barclays Capital Municipal Bond 1-10 Year Blend (1-12) Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.73%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 224
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 871
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,049
1 Year rr_AverageAnnualReturnYear01 1.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.30%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 567
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2010 rr_AnnualReturn2010 1.56%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.67%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.67%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.12% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.12%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.16% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.16%)
1 Year rr_AverageAnnualReturnYear01 1.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.72%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.40% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.57% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.61% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.33% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Tax Managed Real Return Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 56
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 176
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 307
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 689
1 Year rr_AverageAnnualReturnYear01 1.46%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.61%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 82% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 82.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in commodity linked derivative instruments backed by an actively managed, low volatility portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund invests in commodity-linked derivative instruments, including swap agreements, futures, options on futures, commodity index-linked notes and commodity options that provide exposure to the investment returns of the commodities futures markets. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overall market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments.

The Fund will seek to gain exposure to the commodity futures markets primarily through investments in swap agreements and futures, and through investments in the PIMCO Cayman Commodity Fund III Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). The Subsidiary is advised by PIMCO, and has the same investment objective as the Fund. As discussed in greater detail elsewhere in the prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments linked to certain commodity indices and instruments linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instruments may specify exposur e to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser exposure to that index than the value of the Fund's net assets, or greater or lesser exposure to a subset of commodities than is represented by a particular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

The Fund may also invest in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the performance of commodity indices. These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities futures market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest in investment grade securities that are rated at least Baa, including up to 10% of its total assets in securities rated below A, by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P"), or Fitch ("Fitch"), Inc., or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar denominated securit ies of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 5% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Credit Suisse Commodity Benchmark. The Credit Suisse Commodity Benchmark is an unmanaged index composed of futures contracts on 30 physical commodities. The objective of the benchmark is to gain exposure to the broad commodity universe while maintaining sufficient liquidity. Commodities were chosen based on world production levels, sufficient open interest, and volume of trading. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 101
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 315
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 547
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,213
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.99%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.24%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 126
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 393
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 681
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,500
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.74%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 76
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 237
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 411
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 918
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommoditiesPLUS Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.96%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.84%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 86
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 268
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 466
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,037
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 198% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 198.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in commodity linked derivative instruments backed by a portfolio of inflation-indexed securities and other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. "Real Return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure. The Fund invests in commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures and options on futures, that provide exposure to the investment returns of the commodities markets, without investing directly in physical commodities. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overa ll market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments. The Fund may also invest in common and preferred stocks as well as convertible securities of issuers in commodity-related industries.

The Fund will seek to gain exposure to the commodity markets primarily through investments in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the performance of commodity indices, and through investments in the PIMCO Cayman Commodity Fund I Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment. The Fund may also gain exposure to commodity markets by investing in the Subsidiary. The Subsidiary is advised by Pacific Investment Management Company LLC ("PIMCO"), and has the same investment objective as the Fund. As discussed in greater detail elsewhere in this prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments.

The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments linked to certain commodity indices and instruments linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instruments may specify exposure to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser exposure to that index than the value of the Fund's net assets, or greater or lesser exposure to a subset of commodities than is represented by a par ticular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in inflation-indexed securities and other Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may i nvest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by the Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones-UBS Commodity Total Return Index (formerly named the Dow Jones-AIG Commodity Total Return Index) is an unmanaged index composed of futures contracts on 19 physical commodities. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class. The Lipper Commodities General Funds Average is a total return performance average of funds that invest primarily in a blended basket of commodity-linked derivative instruments or physicals. It is not possible to invest directly in an unmanaged index. The Fund began operations on 6/28/02. Index comparisons began on 6/30/02.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.80%. For the periods shown in the bar chart, the highest quarterly return was 16.77% in the Q1 2004, and the lowest quarterly return was -35.68% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/28/2002)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Lipper Commodities General Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.86%
5 Years rr_AverageAnnualReturnYear05 (1.97%)
Fund Inception** rr_AverageAnnualReturnSinceInception 4.44%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Dow Jones-UBS Commodity Index Total Return (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.83%
5 Years rr_AverageAnnualReturnYear05 1.18%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.13%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.14% [53]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.01% [82]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 103
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 322
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 558
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,236
1 Year rr_AverageAnnualReturnYear01 23.69%
5 Years rr_AverageAnnualReturnYear05 3.14%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.96%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.34% [53]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.21% [82]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 123
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 384
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 665
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,466
1 Year rr_AverageAnnualReturnYear01 23.45%
5 Years rr_AverageAnnualReturnYear05 2.89%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.70%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.89% [53]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.76% [82]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 243
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 422
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 942
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2003 rr_AnnualReturn2003 29.82%
Annual Return 2004 rr_AnnualReturn2004 16.36%
Annual Return 2005 rr_AnnualReturn2005 20.50%
Annual Return 2006 rr_AnnualReturn2006 (3.04%)
Annual Return 2007 rr_AnnualReturn2007 23.80%
Annual Return 2008 rr_AnnualReturn2008 (43.33%)
Annual Return 2009 rr_AnnualReturn2009 39.92%
Annual Return 2010 rr_AnnualReturn2010 24.13%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.80%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.80%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 16.77% in the Q1 2004
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.77%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -35.68% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.68%)
1 Year rr_AverageAnnualReturnYear01 24.13%
5 Years rr_AverageAnnualReturnYear05 3.39%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.25%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.85% [84]
5 Years rr_AverageAnnualReturnYear05 (0.69%) [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.76% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.25% [84]
5 Years rr_AverageAnnualReturnYear05 0.33% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.91% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO CommodityRealReturn Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.99% [53]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.86% [82]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 477
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,061
1 Year rr_AverageAnnualReturnYear01 24.04%
5 Years rr_AverageAnnualReturnYear05 3.33%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.16%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmarks.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 517% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 517.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P or Administrative Class shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the FTSE RAFI® Emerging Markets Index (the "Index") and the MSCI Emerging Markets Index (the "Secondary Index") by investing under normal circumstances in derivatives based on the Enhanced RAFI® Emerging Markets Fundamental Index ("Enhanced RAFI® EM"), an enhanced, performance recalibrated version of the Index, backed by a diversified short to intermediate duration portfolio comprised of Fixed Income Instruments, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Index, the Secondary Index and Enhanced RAFI® EM are further described below. The Fund may invest in common stocks, options, futures, options on futures and swaps, including derivatives based on the Index. The Fund is normally expected to primarily use E nhanced RAFI® EM derivatives in place of Enhanced RAFI® EM stocks to attempt to equal or exceed the daily performance of the Index and the Secondary Index. The values of Enhanced RAFI® EM derivatives closely track changes in the value of Enhanced RAFI® EM. However, Enhanced RAFI® EM derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Research Affiliates, LLC, the Fund's sub-adviser, provides investment advisory services in connection with the Fund's use of the Enhanced RAFI® EM by, among other things, providing Pacific Investment Management Company LLC ("PIMCO"), or counterparties designated by PIMCO, with a model portfolio reflecting the composition of Enhanced RAFI® EM for purposes of developing Enhanced RAFI® EM derivatives. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enha ncing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in intrest rates. The Barclays Capital U.S. Aggregate Index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis.

The Index consists of the largest constituent companies by fundamental accounting value which satisfy the Enhanced RAFI® EM selection criteria. Unlike other indexes, which are frequently comprised of stocks weighted according to their market capitalization, the Index is weighted by a combination of fundamental factors, including sales, cash flow, book values and, if applicable, dividends (sales, cash flow and dividends are averaged over the prior five years). Indexes based on market capitalization such as the Secondary Index, generally overweight stocks which are overvalued, and underweight stocks which are undervalued. Indexes based on fundamental factors, however, such as the Index, seek to avoid this problem by weighting stocks based on variables that do not depend on the fluctuations of market valuation. Enhanced RAFI® EM is a recalibrated version of the Index that may incorporate additional factors designe d to improve performance and/or reduce volatility. Enhanced RAFI® EM may include a broader array of stocks than the Index and may be further recalibrated to reflect price momentum in underlying stock prices. The Fund seeks to remain invested in Enhanced RAFI® EM derivatives or Enhanced RAFI® EM stocks even when Enhanced RAFI® EM is declining. The Fund's Secondary Index is a market capitalization weighted index that is designed to measure equity market performance of emerging markets.

The Fund typically will seek to gain exposure to Enhanced RAFI® EM by investing in total return swap agreements. In a typical swap agreement, the Fund will receive the price appreciation (or depreciation) on Enhanced RAFI® EM from the counterparty to the swap agreement in exchange for paying the counterparty an agreed upon fee. The Fund's sub-adviser facilitates the Fund's use of Enhanced RAFI® EM derivatives by providing model portfolios of Enhanced RAFI® EM securities to the Fund's swap counterparties, so that the counterparties can provide total return swaps based on Enhanced RAFI® EM to the Fund. Because Enhanced RAFI® EM is a proprietary index, there may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. In addition to or instead of Enhanced RAFI® EM swaps, the Fund may invest in other derivative instruments, "baskets" of stocks, i ndividual securities, and exchange traded funds to maintain emerging markets equity exposure.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. With respect to the Fund's fixed income investments, the Fund may invest u p to 15% of its total assets in securities and instruments that are economically tied to emerging market countries.With respect to the Fund's fixed income investments, the Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar denominated securities of foreign issuers. With respect to the Fund's fixed income investments, the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Enhanced RAFI® EM derivatives and Fixed Income Instruments are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of Enhanced RAFI® EM stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods when Class P shares of the Fund were not operational (including April 1, 2009 through December 31, 2009), performance information shown in the table for Class P shares is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Class P shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The FTSE RAFI Emerging Markets Index is part of the FTSE RAFI Index Series, launched in association with Research Affiliates. As part of FTSE Group's range of non market-cap weighted indexes, the FTSE RAFI Index Series weights index constituents using four fundamental factors, rather than market capitalisation. These factors include dividends, cash flow, sales and book value. The FTSE RAFI Emerging Markets Index is designed to provide investors with a tool to enable investment in emerging markets whilst using fundamental weightings methodology. The FTSE RAFI Emerging Markets Index consists of the 350 companies with the largest RAFI fundamental values, selected from the constituents of the FTSE Emerging Markets Index. It is not possible to invest directly in an unmanaged index. The index does not reflect deductions for fees, expenses or taxes. The Lipper Emerging Market Funds Average is a total return performance average of funds tracked by Lipper, Inc. that seek long-term capital appreciation by investing primarily in emerging market equity securities, where "emerging market" is defined by a country's per-capita GNP or other economic measures. The Fund began operations on 11/26/08. Fund comparisons began on 11/30/08.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates in the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.93%. For the periods shown in the bar chart, the highest quarterly return was 41.65% in the Q2 2009, and the lowest quarterly return was -6.53% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (11/26/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Lipper Emerging Market Funds Average (reflects no deductions for taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.52%
Fund Inception** rr_AverageAnnualReturnSinceInception 46.53%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | FTSE RAFI Emerging Markets Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 18.25%
Fund Inception** rr_AverageAnnualReturnSinceInception 48.98%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 153
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 474
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 818
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,791
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.25%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 127
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,511
Annual Return 2009 rr_AnnualReturn2009 93.00%
Annual Return 2010 rr_AnnualReturn2010 25.86%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.93%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.93%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 41.65% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 41.65%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.53% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.53%)
1 Year rr_AverageAnnualReturnYear01 25.86%
Fund Inception** rr_AverageAnnualReturnSinceInception 61.58%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 17.53% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 41.38% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.94% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 41.00% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO EM Fundamental IndexPLUS TR Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,624
1 Year rr_AverageAnnualReturnYear01 25.72%
Fund Inception** rr_AverageAnnualReturnSinceInception 61.41%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 512% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 512.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in derivatives providing long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 Index (the "S&P 500"), backed by a diversified portfolio of short and intermediate maturity Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Enhanced RAFI® 1000 and the S&P 500 are further described below. The Fund's strategy with respect to maintaining long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 can be characterized as "market neutral" because it seeks to maintain a low correlation to the fluctuation of the U.S. equity market as a whole while returning the relative appreciation (or depreciation) of Enhanced RAFI® 1000 over the S&P 500.

Enhanced RAFI® 1000 is a performance recalibrated version of the FTSE RAFI® 1000 Index, which is composed of the 1,000 largest publicly-traded U.S. companies by fundamental accounting value. Unlike other indexes, which are frequently comprised of stocks weighted according to their market capitalization, Enhanced RAFI® 1000 is weighted by a combination of fundamental factors, including sales, cash flow, book values and, if applicable, dividends (sales, cash flow and dividends are averaged over the prior five years), and may incorporate additional factors, including but not limited to the quality of corporate earnings, the risk of financial distress and the quality of corporate governance/accounting practices. Indexes based on market capitalization, including but not limited to the S&P 500, generally overweight stocks which are overvalued, and underweight stocks which are undervalued. Enhanced RAFI® 1000 seeks to avoid this problem by weighting stocks based on variables that do not depend on the fluctuations of market valuation. The S&P 500 is an unmanaged index composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to maintain long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 even when Enhanced RAFI® 1000 is underperforming relative to the S&P 500.

The Fund may invest in common stocks, options, futures, options on futures and swaps to gain long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500. The Fund typically will seek to simultaneously gain long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500, each in an amount, under normal circumstances, approximately equal to the Fund's net assets. While the Fund will, under normal circumstances, seek to maintain approximately equal value exposure in its long positions in Enhanced RAFI® 1000 and short positions in the S&P 500 in an effort to offset the effects on the Fund's performance of general stock market movements, PIMCO may increase or decrease the Fund's long exposure to Enhanced RAFI® 1000 or the Fund's short exposure to the S&P 500 when PIMCO deems it appropriate to do so. Because Enhanced RAFI® 1000 is a proprietary index, t here may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. If such swap agreements are not available, or when PIMCO otherwise deems it appropriate to do so, the Fund may invest in, or take short positions in, other derivative instruments, "baskets" of stocks, or individual securities to replicate the performance of Enhanced RAFI® 1000 relative to the S&P 500. The Fund also may invest in exchange traded funds.

The values of derivatives based on Enhanced RAFI® 1000 and the S&P 500 should closely track changes in the value of Enhanced RAFI® 1000 and the S&P 500. However, these derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the Fund's assets may be invested in Fixed Income Instruments. Research Affiliates, LLC, the Fund's sub-adviser, provides investment advisory services in connection with the Fund's use of Enhanced RAFI® 1000 by, among other things, providing Pacific Investment Management Company LLC ("PIMCO"), or counterparties designated by PIMCO, with a model portfolio reflecting the composition of Enhanced RAFI® 1000 for purposes of developing Enhanced RAFI® 1000 derivatives. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC registered, taxable and dollar denominated. The index covers the U.S. investment-grade fixed rate bond market, with index components for government and corporate securities, mortgage-pass through securities, and asset backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instr uments that are economically tied to emerging market countries. The Fund may also invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar- denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Although the Fund seeks to protect against equity market risk arising from its long exposure to Enhanced RAFI® 1000 by maintaining short exposure to the S&P 500, under certain conditions, generally in a market where Enhanced RAFI® 1000 underperforms relative to the S&P 500 and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (June 30, 2010), performance information shown in the table for that class is based on performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service fees and other expenses paid by these classes of shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3 Month USD LIBOR Index. LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper Equity Market-Neutral Funds Average is a total return performance average of funds tracked by Lipper, Inc. that employ portfolio strategies generating consistent returns in both up and down markets by selecting positions with a total net market exposure of zero.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.91%. For the periods shown in the bar chart, the highest quarterly return was 11.64% in the Q2 2009, and the lowest quarterly return was -4.16% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (2/29/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Lipper Equity Market Neutral Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.47%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.49%)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | 3 Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.40%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.14%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 116
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 362
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 628
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,386
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 131
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 409
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 708
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,556
1 Year rr_AverageAnnualReturnYear01 10.47%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.16%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.89%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 91
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 284
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 493
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,096
Annual Return 2009 rr_AnnualReturn2009 16.51%
Annual Return 2010 rr_AnnualReturn2010 10.65%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.91%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.91%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.64% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.64%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.16% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.16%)
1 Year rr_AverageAnnualReturnYear01 10.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.60%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.89% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.85% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.89% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.60% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.99%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 101
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 315
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 547
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,213
1 Year rr_AverageAnnualReturnYear01 10.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.50%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the FTSE RAFI® 1000 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 453% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 453.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the FTSE RAFI® 1000 Index (the "Index") by investing under normal circumstances in derivatives based on Enhanced RAFI® 1000, an enhanced, performance recalibrated version of the Index ("Enhanced RAFI® 1000"), backed by a portfolio of short and intermediate maturity Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instru- ments issued by various U.S. and non-U.S. public or private-sector entities. The Index and Enhanced RAFI® 1000 are further described below. The Fund may invest in common stocks, options, futures, options on futures and swaps, including derivatives based on the Index. The Fund uses Enhanced RAFI® 1000 derivatives in addition to or in place of Enhanced RAFI® 1000 stocks to attempt to equal or exceed the daily performance of the Index. The values of Enhanced RAFI® 1000 derivatives should closely track changes in the value of Enhanced RAFI® 1000 . However, Enhanced RAFI® 1000 derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Research Affiliates, LLC, the Fund's sub-adviser, provides investment advisory services in connection with the Fund's use of Enhanced RAFI® 1000 by, among other things, providing PIMCO, or counterparties designated by Pacific Investment Management Company LLC ("PIMCO"), with a model portfolio reflecting the composition of Enhanced RAFI® 1000 for purposes of developing Enhanced RAFI® 1000 derivatives. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Cap ital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Index is composed of the 1,000 largest publicly-traded U.S. companies by fundamental accounting value, which includes accounting data found in a company's annual report, selected from the constituents of a proprietary U.S. stock universe. Unlike other indexes, which are frequently comprised of stocks weighted according to their market capitalization, the Index is weighted by a combination of fundamental factors, including sales, cash flow, book values and, if applicable, dividends (sales, cash flow and dividends are averaged over the prior five years). Indexes based on market capitalization, such as the S&P 500, generally overweight stocks which are overvalued, and underweight stocks which are undervalued. Indexes based on fundamental factors, however, such as the Index, seek to avoid this problem by weighting stocks based on variables that do not depend on the fluctuations of market valuation. Enhanced RAFI® 1000 is a performance recalibrated version of the Index that incorporates additional factors including, but not limited to, the quality of corporate earnings, the risk of financial distress, and the quality of corporate governance/accounting practices, and recalibrates existing factors utilized in the Index that affect a company's fundamental drivers of value. Enhanced RAFI® 1000 may also be rebalanced more frequently than the Index. The Fund seeks to remain invested in Enhanced RAFI® 1000 derivatives or Enhanced RAFI® 1000 stocks even when Enhanced RAFI® 1000 is declining.

The Fund typically will seek to gain exposure to Enhanced RAFI® 1000 by investing in total return swap agreements. In a typical swap agreement, the Fund will receive the price appreciation (or depreciation) on Enhanced RAFI® 1000 from the counterparty to the swap agreement in exchange for paying the counterparty an agreed upon fee. The Fund's sub-adviser facilitates the Fund's use of Enhanced RAFI® 1000 derivatives by providing model portfolios of Enhanced RAFI® 1000 securities to the Fund's swap counterparties, so that the counterparties can provide total return swaps based on Enhanced RAFI® 1000 to the Fund. Because Enhanced RAFI® 1000 is a proprietary index, there may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. If such swap agreements are not available, the Fund may invest in other derivative instruments, "baskets" of stocks, or in dividual securities to replicate the performance of Enhanced RAFI® 1000.

Though the Fund does not normally invest directly in Enhanced RAFI® 1000 securities, when Enhanced RAFI® 1000 derivatives appear to be overvalued relative to Enhanced RAFI® 1000, the Fund may invest all of its assets in a "basket" of Enhanced RAFI® 1000 stocks. In the alternative, the Fund may invest all of its assets in a "basket" of Index stocks. The Fund also may invest in exchange traded funds.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and inst ruments that are economically tied to emerging market countries. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Enhanced RAFI® 1000 derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of Enhanced RAFI® 1000 stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. The Fund's performance information reflects applicable fee waivers and/or expense limitations in effect during the periods presented. Absent such fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Class P shares (April 30, 2008), performance information shown in the table for Class P is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class P shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the FTSE RAFI® 1000 Index. FTSE RAFI® 1000 Index is part of the FTSE RAFI® Index Series, launched in association with Research Affiliates. As part of FTSE Group's range of nonmarket cap weighted indices, the FTSE RAFI® Index Series weights index constituents using four fundamental factors, rather than market capitalization. These factors include dividends, cash flow, sales and book value. The FTSE RAFI® US 1000 Index comprises the largest 1000 US-listed companies by fundamental value, selected from the constituents of the FTSE US All Cap Index, part of the FTSE Global Equity Index Series (GEIS). The total return index calculations add the income a stock's dividend provides to the performance of the index. The Fund's secondary benchmark is the S&P 500 Index. S&P 500 Index is an unmanaged marke t index generally considered representative of the stock market as a whole. The index focuses on the large-cap segment of the U.S. equities market. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional Class*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 9.40%. For the periods shown in the bar chart, the highest quarterly return was 31.95% in the Q2 2009, and the lowest quarterly return was -23.88% in the Q4 2008 .

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/30/2005)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | FTSE RAFI US 1000 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.99%
5 Years rr_AverageAnnualReturnYear05 4.74%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.23%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Lipper Specialty Diversified Equity Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.62%
5 Years rr_AverageAnnualReturnYear05 1.98%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.07%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.12%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.05% [51]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 107
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 334
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 579
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,283
1 Year rr_AverageAnnualReturnYear01 29.88%
5 Years rr_AverageAnnualReturnYear05 7.55%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.49%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.20% [51]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 122
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 381
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 660
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,455
1 Year rr_AverageAnnualReturnYear01 29.84%
5 Years rr_AverageAnnualReturnYear05 7.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.34%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80% [51]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 990
Annual Return 2006 rr_AnnualReturn2006 17.16%
Annual Return 2007 rr_AnnualReturn2007 7.73%
Annual Return 2008 rr_AnnualReturn2008 (43.67%)
Annual Return 2009 rr_AnnualReturn2009 57.25%
Annual Return 2010 rr_AnnualReturn2010 30.42%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 9.40%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 9.40%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 31.95% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 31.95%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -23.88% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.88%)
1 Year rr_AverageAnnualReturnYear01 30.42%
5 Years rr_AverageAnnualReturnYear05 7.83%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.77%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 18.68% [84]
5 Years rr_AverageAnnualReturnYear05 1.47% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.75% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.08% [84]
5 Years rr_AverageAnnualReturnYear05 2.88% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.04% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Fundamental IndexPLUS TR Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90% [51]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
1 Year rr_AverageAnnualReturnYear01 30.36%
5 Years rr_AverageAnnualReturnYear05 7.73%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.66%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of a blend of 60% MSCI World Index/40% Barclays Capital U.S. Aggregate Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Class P, Administrative Class or Class D shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, the Example shows what your costs would be based on these assumptions.
Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund is intended for investors who prefer to have their asset allocation decisions made by professional investment managers. Pacific Investment Management Company LLC ("PIMCO") uses a three-step approach in seeking to achieve the Fund's investment objective which consists of 1) developing a target asset allocation; 2) developing a series of relative value strategies designed to add value beyond the target allocation; and 3) utilizing hedging techniques to manage risks. PIMCO evaluates these three steps daily and uses varying combinations of Acquired Funds and/or direct investments to implement them within the Fund. The fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRetirement® Funds ("Underlying PIMCO Funds") and may also invest in other affiliated, including PIMC O ETF Trust, and unaffiliated funds (collectively, "Acquired Funds").

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940, as amended (the "1940 Act"), Fixed Income Instruments, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest, without limitation, in any of the Underlying PIMCO Funds (except the PIMCO CommoditiesPLUSTM Short Strategy Fund, PIMCO CommoditiesPLUSTM Strategy Fund and PIMCO CommodityRealReturn Strategy® Fund). The Fund will inves t either directly or indirectly (through a fund) in instruments that are economically tied to at least three countries (one of which may be the United States).

The Fund seeks concurrent exposure to a broad spectrum of asset classes and other investments. The Fund will typically invest 20% to 80% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of real estate investment trusts and/or investment in the Domestic Equity- Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund and in other equity-related Acquired Funds). With respect to its direct or indirect (through a fund) investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest. The Fund may invest up to 25% of its total assets in commodity-related investments (including investment in the PIMCO Cayman Commodity Fund II Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"), and the PIMCO CommoditiesPLUSTM Short Strategy Fund, PIMCO CommoditiesPLUSTM Strategy Fund, PIMCO CommodityRealReturn Strategy Fund®, Underlying PIMCO Funds). The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments. As discussed in greater detail elsewhere in this prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The Fund may invest up to 25% of its total assets in the Subsidiary. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund may invest, without limitation, in high yield securities ("junk bonds"). The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's assets are not allocated according to a predetermined blend of shares of the Acquired Funds and/or direct investments in securities, instruments and other investments. Instead, when making allocation decisions among the Acquired Funds, securities, instruments and other investments, PIMCO considers various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, and labor information. PIMCO uses these factors to help determine the Fund's target asset allocation and to identify potentially attractive relative value and risk hedging strategies. PIMCO has the flexibility to reallocate the Fund's assets among any or all of the investment exposures represented by affiliated or unaffiliated funds, or invest directly in securities, instruments and other investments, based on its ongoing analyses of the global economy and financial markets. While these analyses are performed daily, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce the Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the target asset allocation, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets. As of May 27, 2010 the MSCI World Index consisted of the following 24 developed market country indices: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Greece, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom, and the United States. The index represents the unhedged performance of the constituent stocks, in US dollars. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sect ors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Global Flexible Portfolio Funds Average is a total return performance average of funds tracked by Lipper, Inc. that allocate investments across various asset classes, including both domestic and foreign stocks, bonds, and money market instruments with a focus on total return. At least 25% of their portfolio is invested in securities traded outside of the United States, including shares of gold mines, gold-oriented mining finance houses, gold coins, or bullion. The Fund began operations on 10/29/08. Index comparisons began on 10/31/08.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional*(1)

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.81%. For the periods shown in the bar chart, the highest quarterly return was 11.48% in the Q3 2009, and the lowest quarterly return was -4.62% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/29/2008)
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | MSCI World Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.76%
Fund Inception** rr_AverageAnnualReturnSinceInception 18.74%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Lipper Global Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.87%
Fund Inception** rr_AverageAnnualReturnSinceInception 16.94%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | 60% MSCI World Index/40% Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 15.29%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Administrative Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.95%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.72% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 131
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 409
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 708
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,556
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Class D
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.30%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.07% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 167
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 517
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 892
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,944
1 Year rr_AverageAnnualReturnYear01 11.75%
Fund Inception** rr_AverageAnnualReturnSinceInception 14.09%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.95%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.47% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 106
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 331
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 574
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,271
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Annual Return 2009 rr_AnnualReturn2009 19.94%
Annual Return 2010 rr_AnnualReturn2010 12.35%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.81%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.81%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.48% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.48%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.62% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.62%)
1 Year rr_AverageAnnualReturnYear01 12.35%
Fund Inception** rr_AverageAnnualReturnSinceInception 14.74%
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Institutional Class | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.18% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 12.17% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Institutional Class | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.10% [84]
Fund Inception** rr_AverageAnnualReturnSinceInception 11.14% [84]
(PIMCO Strategic Markets Funds - Institutional) | (PIMCO Global Multi-Asset Fund) | Class P
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets   
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.57% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.14%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 116
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 362
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 628
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,386
1 Year rr_AverageAnnualReturnYear01 12.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 14.64%
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal and California income tax. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax ("California Municipal Bonds"). California Municipal Bonds generally are issued by or on behalf of the State of California and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of California whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax. By concentrating its investments in California, the Fund will be subject to California State-Specific Risk.

The Fund may invest without limitation in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, a substantial portion of the Fund's distributions may not be exempt from federal income tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from three to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are municipal bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A shares (October 19, 1999) and Class C shares (August 31, 2009), performance information shown in the table is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class A or Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital California Intermediate Municipal Bond Index is an unmanaged index comprised of California Municipal Bond Issues having maturities of at least five years and less than ten years and consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. The index is made up of all investment grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper California Intermediate Municipal Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in municipal debt issues that are exempt from taxation in California, with dollar weighted maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.91%. For the periods shown in the bar chart, the highest quarterly return was 7.63% in the Q3 2009, and the lowest quarterly return was -4.74% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Barclays Capital California Intermediate Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.28%
5 Years rr_AverageAnnualReturnYear05 4.87%
10 Years rr_AverageAnnualReturnYear10 4.92%
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Lipper California Intermediate Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.57%
5 Years rr_AverageAnnualReturnYear05 3.26%
10 Years rr_AverageAnnualReturnYear10 3.71%
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.775%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 451
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 613
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 789
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,299
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 451
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 613
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 789
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,299
Annual Return 2001 rr_AnnualReturn2001 5.66%
Annual Return 2002 rr_AnnualReturn2002 6.05%
Annual Return 2003 rr_AnnualReturn2003 2.73%
Annual Return 2004 rr_AnnualReturn2004 2.38%
Annual Return 2005 rr_AnnualReturn2005 1.73%
Annual Return 2006 rr_AnnualReturn2006 4.27%
Annual Return 2007 rr_AnnualReturn2007 0.27%
Annual Return 2008 rr_AnnualReturn2008 (8.08%)
Annual Return 2009 rr_AnnualReturn2009 13.68%
Annual Return 2010 rr_AnnualReturn2010 4.74%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.91%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.91%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.63% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.63%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.74% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.74%)
1 Year rr_AverageAnnualReturnYear01 1.60%
5 Years rr_AverageAnnualReturnYear05 2.11%
10 Years rr_AverageAnnualReturnYear10 2.90%
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.55% [86]
5 Years rr_AverageAnnualReturnYear05 2.03% [86]
10 Years rr_AverageAnnualReturnYear10 2.53% [86]
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.18% [86]
5 Years rr_AverageAnnualReturnYear05 2.25% [86]
10 Years rr_AverageAnnualReturnYear10 2.70% [86]
(PIMCO Bond Funds - Retail) | (PIMCO California Intermediate Municipal Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.525%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 255
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 482
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 832
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,818
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 155
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 482
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 832
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,818
1 Year rr_AverageAnnualReturnYear01 2.96%
5 Years rr_AverageAnnualReturnYear05 1.98%
10 Years rr_AverageAnnualReturnYear10 2.50%
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 64% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 64.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal and California income tax ("California Municipal Bonds"). California Municipal Bonds generally are issued by or on behalf of the State of California and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of California whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and California income tax. By concentrating its investments in California, the Fund will be subject to California-State Specific Risk.

The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is no t expected to exceed three years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The total return sought by the Fund consists of both income earned on the Fund's investments and capital appreciation. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated Caa or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are California Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class C shares (August 31, 2009), performance information shown in the table is based on the performance of the Fund's I nstitutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital California 1 Year Municipal Bond Index is an unmanaged index comprised of California Municipal Bond Issues having a maturity of at least one year and less than two years. The Lipper California Short/Intermediate Municipal Debt Funds Average is a total return performance average of funds that invest primarily in municipal debt issues that are exempt from taxation in California, with dollar-weighted average maturities of one to five years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.60%. For the periods shown in the bar chart, the highest quarterly return was 1.89% in the Q3 2009, and the lowest quarterly return was -0.62% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Barclays Capital California 1 Year Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.08%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.31%
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Lipper California Short/Intermediate Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.00%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.84%
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 298
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 453
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 622
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,111
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 298
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 453
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 622
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,111
Annual Return 2007 rr_AnnualReturn2007 2.66%
Annual Return 2008 rr_AnnualReturn2008 2.21%
Annual Return 2009 rr_AnnualReturn2009 3.91%
Annual Return 2010 rr_AnnualReturn2010 0.79%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.60%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.60%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.89% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.89%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterlyreturn was -0.62% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.62%)
1 Year rr_AverageAnnualReturnYear01 (1.47%)
Fund Inception** rr_AverageAnnualReturnSinceInception 1.98%
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.48%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.93% [86]
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.59%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.97% [86]
(PIMCO Bond Funds - Retail) | (PIMCO California Short Duration Municipal Income Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.03%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 205
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 328
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 569
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,259
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 105
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 328
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 569
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,259
1 Year rr_AverageAnnualReturnYear01 (0.54%)
Fund Inception** rr_AverageAnnualReturnSinceInception 2.17%
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 43% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 43.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of convertible securities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Convertible securities, which are issued by companies of all sizes and market capitalizations, include, but are not limited to: corporate bonds, debentures, notes or preferred stocks and their hybrids that can be converted into (exchanged for) common stock or other securities, such as warrants or options, which provide an opportunity for equity participation. Convertible securities also include "synthetic" convertible securities. Synthetic convertible securities, which may be created by a third party or Pacific Investment Management Company LLC ("PIMCO"), are instruments that combine (i) non-convertible fixed income securities or preferred stocks, which may be represented by derivative instruments and (ii) securities or instruments such as warrants or call options that together possess economic characteristics similar to a convertible security. The Fund may invest in securities of any market capitalization, and may from time to time invest a significant amount of its assets in securities of smaller companies.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 20% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. In addition, the Fund may invest in common stock or in other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U .S. public- or private-sector entities.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rat es, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Convertible Securities Risk: the risk that the market values of convertible securities tend to decline as interest rates increase and, conversely, to increase as interest rates decline. A convertible security's market value, however, tends to reflect the market price of the common stock of the issuing company when that stock price approaches or is greater than the convertible security's "conversion price." The value of a synthetic convertible security will respond differently to market fluctuations than a traditional convertible security because a synthetic convertible is composed of two or more separate securities or instruments, each with its own market value. If the value of the underlying common stock or the level of the index involved in the convertible component falls below the exercise price of the warrant or option, the warrant or option may lose all value

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. In both the bar chart and Average Annual Total Returns table, for periods when Class A and C shares of the Fund were not operational (including February 1, 2003 through April 27, 2011), performance information shown for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual distribution and/ or service (12b-1) fees and other expenses paid by that class of shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch All Convertibles Index is an unmanaged index market comprised of convertible bonds and preferred securities. The Lipper Convertible Securities Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in convertible bonds and/or convertible preferred stock.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.18%. For the periods shown in the bar chart, the highest quarterly return was 20.69% in the Q3 2009, and the lowest quarterly return was -20.46% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | BofA Merrill Lynch All Convertibles Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.77%
5 Years rr_AverageAnnualReturnYear05 5.71%
10 Years rr_AverageAnnualReturnYear10 4.97%
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | Lipper Convertible Securities Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.59%
5 Years rr_AverageAnnualReturnYear05 5.12%
10 Years rr_AverageAnnualReturnYear10 4.65%
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.06% [15]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 652
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 869
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,103
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,773
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 652
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 869
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,103
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,773
Annual Return 2001 rr_AnnualReturn2001 (14.12%)
Annual Return 2002 rr_AnnualReturn2002 (7.63%)
Annual Return 2003 rr_AnnualReturn2003 31.43%
Annual Return 2004 rr_AnnualReturn2004 8.04%
Annual Return 2005 rr_AnnualReturn2005 0.14%
Annual Return 2006 rr_AnnualReturn2006 12.80%
Annual Return 2007 rr_AnnualReturn2007 7.22%
Annual Return 2008 rr_AnnualReturn2008 (35.00%)
Annual Return 2009 rr_AnnualReturn2009 44.45%
Annual Return 2010 rr_AnnualReturn2010 17.47%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.18%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.18%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 20.69% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.69%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -20.46% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.46%)
1 Year rr_AverageAnnualReturnYear01 10.99%
5 Years rr_AverageAnnualReturnYear05 4.74%
10 Years rr_AverageAnnualReturnYear10 3.59%
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.24% [86]
5 Years rr_AverageAnnualReturnYear05 3.61% [86]
10 Years rr_AverageAnnualReturnYear10 2.30% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.16% [86]
5 Years rr_AverageAnnualReturnYear05 3.44% [86]
10 Years rr_AverageAnnualReturnYear10 2.29% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Convertible Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.81% [15]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 284
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 569
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 980
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,127
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 184
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 569
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 980
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,127
1 Year rr_AverageAnnualReturnYear01 15.60%
5 Years rr_AverageAnnualReturnYear05 5.14%
10 Years rr_AverageAnnualReturnYear10 3.39%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 95% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 95.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from three to eight years, based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in a diversified pool of corporate fixed income securities of varying maturities. The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 10% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may invest, without limitation, in fixed income securities and instruments that are economically tied to emerging market countries. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital Global Credit Hedged USD Index. The Fund's secondary benchmark is an equally weighted blend of the following three indices: Barclays Capital Global Aggregate Credit Component, Hedged USD, BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index, Hedged USD and JPMorgan EMBI Global, Hedged USD. The Fund believes this self-blended index reflects the Fund's investment strategy more accurately than the Barclays Capital Global Credit Hedged USD Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Global Credit Hedged USD Index contains investment grade and high yield credit securities from the Multiverse represented in US Dollars on a hedged basis, (Multiverse is the merger of two groups: the Global Aggregate and the Global High Yield). One-third each-Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd: The benchmark is an equally weighted blend of the following three indices: Barclays Capital Global Aggregate Credit Component Hedged USD, BofA Merrill Lynch Global High Yield, BB-B Rated, Constrained Index, JPMorgan EMBI Global. The Barclays Capital Global Aggregate Credit Component Hedged USD provides a broad-based measure of the global investment-grade fixed income markets. The BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index tracks the performance of below investment grade bonds of corporate issuers domiciled in countries having an investment grade foreign currency long term debt rating (based on a composite of Moody's, S&P, and Fitch). The index includes bonds denominated in U.S. Dollars, Canadian dollars, sterling, euro (or euro legacy currency), but excludes all multi-currency denominated bonds. Bonds must be rated below investment grade but at least B3 based on a composite of Moody's, S&P, and Fitch. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The index is rebalanced on the last calendar day of the month. The JPMorgan EMBI Global tracks total returns for U.S. dollar-denominated debt instruments issued by emerging market so vereign and quasi-sovereign entities: Brady bonds, loans, Eurobonds and local market instruments. This index only tracks the particular region or country. The Lipper Multi-Sector Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that seek current income by allocating assets among several different fixed income securities sectors (with no more than 65% in any one sector except for defensive purposes), including U.S. government and foreign governments, with a significant portion of assets in securities rated below investment grade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.99%. For the periods shown in the bar chart, the highest quarterly return was 12.86% in the Q2 2009, and the lowest quarterly return was -6.55% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2003)
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | 1/3 each-Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.04%
5 Years rr_AverageAnnualReturnYear05 7.16%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.91%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Lipper Multi-Sector Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
5 Years rr_AverageAnnualReturnYear05 6.19%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.76%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Barclays Capital Global Credit Hedged USD Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.00%
5 Years rr_AverageAnnualReturnYear05 5.49%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.68%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 488
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 727
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 984
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,720
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 488
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 727
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 984
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,720
Annual Return 2004 rr_AnnualReturn2004 8.91%
Annual Return 2005 rr_AnnualReturn2005 5.47%
Annual Return 2006 rr_AnnualReturn2006 7.19%
Annual Return 2007 rr_AnnualReturn2007 3.56%
Annual Return 2008 rr_AnnualReturn2008 (13.69%)
Annual Return 2009 rr_AnnualReturn2009 31.05%
Annual Return 2010 rr_AnnualReturn2010 13.81%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.99%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.99%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 12.86% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.86%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.55% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.55%)
1 Year rr_AverageAnnualReturnYear01 9.55%
5 Years rr_AverageAnnualReturnYear05 6.59%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.67%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.50% [86]
5 Years rr_AverageAnnualReturnYear05 4.29% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.47% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.15% [86]
5 Years rr_AverageAnnualReturnYear05 4.24% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.28% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 543
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 797
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,076
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,764
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 193
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 597
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,026
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,764
1 Year rr_AverageAnnualReturnYear01 9.47%
5 Years rr_AverageAnnualReturnYear05 6.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.43%
(PIMCO Bond Funds - Retail) | (PIMCO Diversified Income Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 293
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 597
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,026
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,222
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 193
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 597
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,026
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,222
1 Year rr_AverageAnnualReturnYear01 11.97%
5 Years rr_AverageAnnualReturnYear05 6.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.42%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 24.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund's investment objective is maximum total return, consistent with preservation of capital and prudent investment management. The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments denominated in currencies of countries with emerging securities markets, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in forwards or derivatives denominated in any currency, and forwards or derivatives denominated in any currency will be included under the 80% of assets policy noted in the prior sentence so long as the underlying asset of such forwards or derivatives is a Fixed Income Instrument denominated in the currency of an emerging market country. The Fund may, but is not requi red to, hedge its exposure to non-U.S. currencies. Assets not invested in instruments denominated in currencies of non-U.S. countries described above may be invested in other types of Fixed Income Instruments.

The Fund may invest without limitation in Fixed Income Instruments that are economically tied to emerging market countries. Pacific Investment Management Company LLC ("PIMCO") has broad discretion to identify countries that it considers to qualify as emerging markets. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security such as a derivative instrument, rather than investing directly in emerging market securities.

The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged), which as of June 30, 2011 was 4.29 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income and capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged) is a comprehensive global local emerging markets index, and consists of regularly traded, liquid fixed-rate, domestic currency government bonds to which international investors can gain exposure. The Fund began operations on 12/29/06. Index comparisons began on 12/31/06.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.92%. For the periods shown in the bar chart, the highest quarterly return was 17.54% in the Q2 2009, and the lowest quarterly return was -6.80% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (12/29/2006)
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund) | JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.10%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 507
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 787
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,087
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,938
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 507
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 787
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,087
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,938
Annual Return 2007 rr_AnnualReturn2007 11.88%
Annual Return 2008 rr_AnnualReturn2008 (11.07%)
Annual Return 2009 rr_AnnualReturn2009 28.69%
Annual Return 2010 rr_AnnualReturn2010 15.01%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.92%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.92%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 17.54% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.54%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.80% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.80%)
1 Year rr_AverageAnnualReturnYear01 10.66%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.10%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.96% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.18% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.86% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.01% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Local Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 313
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 658
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,129
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,431
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 213
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 658
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,129
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,431
1 Year rr_AverageAnnualReturnYear01 13.16%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.33%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 100% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 100.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to emerging market countries, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Such instruments may be denominated in non-U.S. currencies and the U.S. dollar. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and, under normal market conditions, is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

PIMCO has broad discretion to identify countries that it considers to qualify as emerging markets. The Fund emphasizes countries with relatively low gross national product per capita and with the potential for rapid economic growth. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and any other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security or a currency of an emerging market country, such as a derivative instrument, rather than investing directly in emerging market securities or currencies.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rat es, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan Emerging Markets Bond Index (EMBI) Global tracks total returns for United States Dollar denominated debt instruments issued by emerging market sovereign and quasi-sovereign entities: Brady bonds, loans, Eurobonds and local market instruments.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.94%. For the periods shown in the bar chart, the highest quarterly return was 16.91% in the Q4 2002, and the lowest quarterly return was -7.47% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | JPMorgan Emerging Markets Bond Index (EMBI) Global (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.04%
5 Years rr_AverageAnnualReturnYear05 8.36%
10 Years rr_AverageAnnualReturnYear10 10.29%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 498
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 757
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,036
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,830
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 498
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 757
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,036
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,830
Annual Return 2001 rr_AnnualReturn2001 27.61%
Annual Return 2002 rr_AnnualReturn2002 12.37%
Annual Return 2003 rr_AnnualReturn2003 32.01%
Annual Return 2004 rr_AnnualReturn2004 11.78%
Annual Return 2005 rr_AnnualReturn2005 11.28%
Annual Return 2006 rr_AnnualReturn2006 9.33%
Annual Return 2007 rr_AnnualReturn2007 5.20%
Annual Return 2008 rr_AnnualReturn2008 (14.34%)
Annual Return 2009 rr_AnnualReturn2009 30.02%
Annual Return 2010 rr_AnnualReturn2010 12.59%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.94%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.94%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 16.91% in the Q4 2002
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.91%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -7.47% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.47%)
1 Year rr_AverageAnnualReturnYear01 8.37%
5 Years rr_AverageAnnualReturnYear05 6.78%
10 Years rr_AverageAnnualReturnYear10 12.57%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.65% [86]
5 Years rr_AverageAnnualReturnYear05 4.28% [86]
10 Years rr_AverageAnnualReturnYear10 9.10% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.40% [86]
5 Years rr_AverageAnnualReturnYear05 4.34% [86]
10 Years rr_AverageAnnualReturnYear10 8.83% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 553
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 827
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,128
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,873
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 203
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 627
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,078
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,873
1 Year rr_AverageAnnualReturnYear01 8.26%
5 Years rr_AverageAnnualReturnYear05 6.73%
10 Years rr_AverageAnnualReturnYear10 12.42%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 303
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 627
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,078
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,327
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 203
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 627
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,078
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,327
1 Year rr_AverageAnnualReturnYear01 10.76%
5 Years rr_AverageAnnualReturnYear05 6.80%
10 Years rr_AverageAnnualReturnYear10 12.17%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 31% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 31.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in currencies of, or in Fixed Income Instruments denominated in the currencies of, emerging market countries. The Fund's investments in currencies or Fixed Income Instruments may be represented by forwards or derivatives such as options, futures contracts or swap agreements. The Fund may, but is not required to, hedge its exposure to non-U.S. currencies. Assets not invested in currencies or instruments denominated in currencies of emerging market countries may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

The Fund may invest in the currencies and Fixed Income Instruments of emerging market countries. Pacific Investment Management Company LLC ("PIMCO") has broad discretion to identify countries that it considers to qualify as emerging markets. PIMCO will select the Fund's country and currency composition based on its evaluation of relative interest rates, inflation rates, exchange rates, monetary and fiscal policies, trade and current account balances, legal and political developments and other specific factors PIMCO believes to be relevant. The Fund likely will concentrate its investments in Asia, Africa, the Middle East, Latin America and the developing countries of Europe. The Fund may invest in instruments whose return is based on the return of an emerging market security or a currency of an emerging market, such as a derivative instrument, rather than investing directly in emerging market securities or currencies.

The average portfolio duration of this Fund varies based on PIMCO's forecast for interest rates and, under normal market conditions, is not expected to exceed two years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% of its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest directly in real estate investment trusts ("REITs"). The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income and capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan Emerging Local Markets Index Plus (Unhedged) tracks total returns for local-currency-denominated money market instruments in 22 emerging markets countries with at least US$10 billion of external trade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.13%. For the periods shown in the bar chart, the highest quarterly return was 15.74% in the Q2 2009, and the lowest quarterly return was -11.84% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (5/31/2005)
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund) | JPMorgan Emerging Local Markets Index Plus (Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.68%
5 Years rr_AverageAnnualReturnYear05 8.14%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.09%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.26% [16]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 499
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 760
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,041
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,841
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 499
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 760
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,041
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,841
Annual Return 2006 rr_AnnualReturn2006 11.49%
Annual Return 2007 rr_AnnualReturn2007 12.76%
Annual Return 2008 rr_AnnualReturn2008 (14.90%)
Annual Return 2009 rr_AnnualReturn2009 21.13%
Annual Return 2010 rr_AnnualReturn2010 7.47%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.13%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.13%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 15.74% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 15.74%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -11.84% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.84%)
1 Year rr_AverageAnnualReturnYear01 3.44%
5 Years rr_AverageAnnualReturnYear05 6.03%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.15%
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.87% [86]
5 Years rr_AverageAnnualReturnYear05 4.00% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.23% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.22% [86]
5 Years rr_AverageAnnualReturnYear05 3.99% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.16% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Emerging Markets Currency Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.01% [16]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 304
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 630
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,083
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,338
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 204
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 630
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,083
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,338
1 Year rr_AverageAnnualReturnYear01 5.67%
5 Years rr_AverageAnnualReturnYear05 6.05%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.08%
(PIMCO Bond Funds - Retail) | (PIMCO Extended Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 412% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 412.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the Citigroup STRIPS Index, 20+ Year Sub-Index, which as of June 30, 2011 was 29.27 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Citigroup STRIPS Index, 20+ Year Sub-Index represents a composition of outstanding Treasury Bond and Notes with a maturity of at least twenty years. The index is rebalanced each month in accordance with underlying Treasury figures and profiles provided as of the previous month-end. The included STRIPS are derived only from bonds in the Citigroup U.S. Treasury Bond Index, which include coupon strips with less than one year remaining to maturity. The Lipper Corporate Debt Funds BBB-Rated Funds Average consists of funds that invest at least 65% of their assets in corporate and government debt issues rated in the top four grades.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional*(1)

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.97%. For the periods shown in the bar chart, the highest quarterly return was 43.08% in the Q4 2008, and the lowest quarterly return was -15.18% in the Q4 2010.

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

(1) The bar chart and the Average Annual Total Returns Chart show performance of the Fund's Institutional Class shares, which are offered in a different prospectus. Class A shares would have had substantially similar annual returns because the shares are invested in the same portfolio. Annual returns would differ only to the extent that the Institutional Class and Class A shares have different expenses. Performance for Institutional Class shares in the Average Annual Returns Table does not reflect sales charges applicable to Class A shares.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Retail) | (PIMCO Extended Duration Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [17]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 464
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 654
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 860
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,453
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 464
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 654
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 860
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,453
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current yield consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 40% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 40.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of investments that effectively enable the Fund to achieve a floating rate of income, including, but not limited to, variable and floating-rate Fixed Income Instruments, Fixed Income Instruments with durations of less than or equal to one year, and fixed-rate Fixed Income Instruments with respect to which the Fund has entered into derivative instruments to effectively convert the fixed-rate interest payments into floating-rate interest payments, each of which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and will normally not exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may also invest in other Fixed Income Instruments. Variable and floating-rate Fixed Income Instruments generally pay interest at rates that adjust whenever a specified interest rate changes and/or reset on predetermined dates (such as the last day of a month or calendar quarter).

The Fund may invest all of its assets in high yield securities ("junk bonds") rated at least Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality, subject to a maximum of 10% of its total assets in securities rated below B by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The 3 Month USD LIBOR (London Intrabank Offered Rate) Index is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The benchmark is an equally weighted blend of the following three indices at constant 0.25 year duration: Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index, JPMorgan EMBI Global; all USD hedged. The Barclays Capital Global Aggregate Credit Component provides a broad-based measure of the global investment-grade fixed income markets. The BofA Merrill Lynch Global High Yield BB-B Rated Constrained Index tracks the performance of below investment grade bonds of corporate issuers domiciled in countries having an investment grade foreign currency long term debt rating (based on a composite of Moody's, S&P, and Fitch ). The index includes bonds denominated in U.S. Dollars, Canadian dollars, sterling, euro (or euro legacy currency), but excludes all multi-currency denominated bonds. Bonds must be rated below investment grade but at least B3 based on a composite of Moody's, S&P, and Fitch. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The index is rebalanced on the last calendar day of the month. The JPMorgan EMBI Global tracks total returns for U.S. dollar-denominated debt instruments issued by emerging market sovereign and quasi-sovereign entities: Brady bonds, loans, Eurobonds and local market instruments. This index only tracks the particular region or country. The Lipper Loan Participation Funds Average is a total performance average of funds tracked by Lipper, Inc. that invest primarily in participation interests in collateralized senior corporate loans that have floating or variable rates. The Fund began operations on 07/30/04. Index comparisons began on 07/31/04.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.17%. For the periods shown in the bar chart, the highest quarterly return was 13.44% in the Q2 2009, and the lowest quarterly return was -15.46% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/30/2004)
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | 1/3 each-Barclays Capital Global Aggregate Credit Component, BofA Merrill Lynch Global High Yield BB-B Rated Constrained, JPMorgan EMBI Global; All USD Hdgd (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.99%
5 Years rr_AverageAnnualReturnYear05 1.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.30%
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | Lipper Loan Participation Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.35%
5 Years rr_AverageAnnualReturnYear05 3.52%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.83%
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | 3 Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
5 Years rr_AverageAnnualReturnYear05 3.07%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.03%
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 320
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 521
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,365
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 320
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 521
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 739
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,365
Annual Return 2005 rr_AnnualReturn2005 4.98%
Annual Return 2006 rr_AnnualReturn2006 8.60%
Annual Return 2007 rr_AnnualReturn2007 0.19%
Annual Return 2008 rr_AnnualReturn2008 (25.01%)
Annual Return 2009 rr_AnnualReturn2009 34.26%
Annual Return 2010 rr_AnnualReturn2010 6.57%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.17%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.17%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.44% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.44%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -15.46% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.46%)
1 Year rr_AverageAnnualReturnYear01 4.21%
5 Years rr_AverageAnnualReturnYear05 2.67%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.43%
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.95% [86]
5 Years rr_AverageAnnualReturnYear05 0.76% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.64% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.71% [86]
5 Years rr_AverageAnnualReturnYear05 1.14% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.87% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Floating Income Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 227
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,511
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 127
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 397
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 686
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,511
1 Year rr_AverageAnnualReturnYear01 5.26%
5 Years rr_AverageAnnualReturnYear05 2.84%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.47%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 236% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 236.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to foreign (non-U.S.) countries, representing at least three foreign countries, which may be represented by forwards or derivatives such as options, future contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global ex-US Index Hedged in USD, which as of June 30, 2011 was 7.09 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total as sets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B, C and R shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table is based on the performan ce of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global ex-US Index Hedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars of major non-U.S. bond markets. The Lipper International Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, excluding the United States, except in periods of market weakness.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.20%. For the periods shown in the bar chart, the highest quarterly return was 8.59% in the Q3 2009, and the lowest quarterly return was -2.84% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | JPMorgan GBI Global Index Hedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.44%
5 Years rr_AverageAnnualReturnYear05 4.35%
10 Years rr_AverageAnnualReturnYear10 4.75%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Lipper International Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.59%
5 Years rr_AverageAnnualReturnYear05 6.51%
10 Years rr_AverageAnnualReturnYear10 5.70%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 8.48%
Annual Return 2002 rr_AnnualReturn2002 7.21%
Annual Return 2003 rr_AnnualReturn2003 3.09%
Annual Return 2004 rr_AnnualReturn2004 6.17%
Annual Return 2005 rr_AnnualReturn2005 5.24%
Annual Return 2006 rr_AnnualReturn2006 2.48%
Annual Return 2007 rr_AnnualReturn2007 3.51%
Annual Return 2008 rr_AnnualReturn2008 (2.84%)
Annual Return 2009 rr_AnnualReturn2009 18.48%
Annual Return 2010 rr_AnnualReturn2010 8.69%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.20%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.20%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 8.59% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.59%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.84% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 2.84%
1 Year rr_AverageAnnualReturnYear01 4.62%
5 Years rr_AverageAnnualReturnYear05 5.02%
10 Years rr_AverageAnnualReturnYear10 5.52%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.26% [86]
5 Years rr_AverageAnnualReturnYear05 3.07% [86]
10 Years rr_AverageAnnualReturnYear10 3.61% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.13% [86]
5 Years rr_AverageAnnualReturnYear05 3.14% [86]
10 Years rr_AverageAnnualReturnYear10 3.60% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 518
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 720
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 947
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,485
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,485
1 Year rr_AverageAnnualReturnYear01 4.39%
5 Years rr_AverageAnnualReturnYear05 4.96%
10 Years rr_AverageAnnualReturnYear10 5.38%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 6.89%
5 Years rr_AverageAnnualReturnYear05 5.04%
10 Years rr_AverageAnnualReturnYear10 5.14%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (U.S. Dollar-Hedged)) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 117
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 365
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 633
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,398
1 Year rr_AverageAnnualReturnYear01 8.43%
5 Years rr_AverageAnnualReturnYear05 5.56%
10 Years rr_AverageAnnualReturnYear10 5.65%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 427% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 427.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to foreign (non-U.S.) countries, representing at least three foreign countries, which may be represented by forwards or derivatives such as options, future contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global ex-US FX NY Index Unhedged in USD, which as of June 30, 2011 was 7.09 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equiva lently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global ex-US FX NY Index Unhedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars on an unhedged basis of major non-U.S. bond markets. The Lipper International Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, excluding the United States, except in periods of market weakness.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.43%. For the periods shown in the bar chart, the highest quarterly return was 13.88% in the Q3 2009, and the lowest quarterly return was -10.30% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (4/30/2004)
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | JPMorgan GBI Global ex-US FX NY Index Unhedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.76%
5 Years rr_AverageAnnualReturnYear05 7.79%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.56%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | Lipper International Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.59%
5 Years rr_AverageAnnualReturnYear05 6.51%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.70%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2005 rr_AnnualReturn2005 (9.47%)
Annual Return 2006 rr_AnnualReturn2006 6.17%
Annual Return 2007 rr_AnnualReturn2007 9.97%
Annual Return 2008 rr_AnnualReturn2008 (4.48%)
Annual Return 2009 rr_AnnualReturn2009 20.79%
Annual Return 2010 rr_AnnualReturn2010 11.97%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.43%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.43%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.88% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.88%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -10.30% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.30%)
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 7.74%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.34%
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.53% [86]
5 Years rr_AverageAnnualReturnYear05 5.27% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.27% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.02% [86]
5 Years rr_AverageAnnualReturnYear05 5.11% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.17% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Foreign Bond Fund (Unhedged)) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 10.14%
5 Years rr_AverageAnnualReturnYear05 7.76%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.15%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmarks, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 218% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 218.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to at least three countries (one of which may be the United States), which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to, relative interest rates, exchange rates, monetary and fiscal policies, and trade and current account balances. The Fund may invest without limitation in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund may also invest up to 10% of its total assets in preferred stocks. In addition, the Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 15% its total assets in securities rated below B by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's R ating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The average portfolio duration of this Fund varies based on PIMCO's forecast for interest rates and, under normal market conditions, is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation or improving credit fundamentals for a parti cular sector or security.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, C and R shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital U.S. Aggregate Index, which represents securities that are SEC-registered, taxable and dollar denominated. The index covers the U.S. investment-grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. The major sectors are sub-divided into more specific indicies that are calculated and reported on a regular basis. The Fund's secondary benchmark, the PIMCO Global Advantage Bond Index ("GLADI") (NY Close), is a diversified bond index intended to provide a better representation of the fixed income universe through its wide coverage of fixed income instruments and sectors--from developed to emerging markets, nominal to real assets, and cash to derivative instruments. GLADI employs a unique GDP-weighting methodology tha t puts emphasis on rapidly developing markets, making the index forward-looking in nature. This contrasts with traditional market capitalization-weighted indices, which emphasize past debt issuance and are therefore backward-looking. GDP-weighting also tends to lead to counter-cyclical rebalancing--as bond prices tend to be inversely related to GDP growth rates--and avoids some of the disadvantages of traditional market-cap weighted indices, such as allocating too heavily toward overpriced securities, government debt, and large debt issuers. The Fund believes that the secondary benchmark reflects the Fund's investment strategy more accurately than the Barclays Capital U.S. Aggregate Index. The Lipper Global Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, one of which may be the United States. The Fund began operations on 02/05/09. Index compariso ns began on 01/31/09.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.10%. For the periods shown in the bar chart, the highest quarterly return was 7.90% in the Q3 2010, and the lowest quarterly return was -0.76% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (2/5/2009)
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.13%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | PIMCO Global Advantage Bond Index (NY Close) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.94%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Lipper Global Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.82%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 483
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 712
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 958
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,665
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 483
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 712
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 958
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,665
Annual Return 2010 rr_AnnualReturn2010 7.17%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.10%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.10%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.90% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.90%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.76% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.76%)
1 Year rr_AverageAnnualReturnYear01 3.15%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.46%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.97% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 7.44% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.06% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.91% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 288
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 582
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,001
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,169
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 188
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 582
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,001
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,169
1 Year rr_AverageAnnualReturnYear01 5.37%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.83%
(PIMCO Bond Funds - Retail) | (PIMCO Global Advantage Strategy Bond Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,624
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 137
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 428
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 739
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,624
1 Year rr_AverageAnnualReturnYear01 6.92%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.40%
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 232% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 232.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in Fixed Income Instruments that are economically tied to at least three countries (one of which may be the United States), which may be represented by forwards or derivatives such as options, future contracts or swap agreements. Securities may be denominated in major foreign currencies or the U.S. dollar. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

Pacific Investment Management Company LLC ("PIMCO") selects the Fund's foreign country and currency compositions based on an evaluation of various factors, including, but not limited to, relative interest rates, exchange rates, monetary and fiscal policies, trade and current account balances. The Fund may invest, without limitation, in securities and instruments that are economically tied to emerging market countries. The Fund normally invests at least 25% of its net assets in instruments that are economically tied to foreign (non-U.S.) countries. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the JPMorgan GBI Global Hedged in USD, which as of June 30, 2011 was 6.52 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The JPMorgan GBI Global Hedged in USD is an unmanaged index market representative of the total return performance in U.S. dollars on a hedged basis of major world bond markets. The Lipper Global Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in U.S. dollar and non-U.S. dollar debt securities of issuers located in at least three countries, one of which may be the United States.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.23%. For the periods shown in the bar chart, the highest quarterly return was 7.41% in the Q3 2009, and the lowest quarterly return was -3.33% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | JPMorgan GBI Global ex-US Index Hedged in USD (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.24%
5 Years rr_AverageAnnualReturnYear05 4.65%
10 Years rr_AverageAnnualReturnYear10 4.96%
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Lipper Global Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.68%
5 Years rr_AverageAnnualReturnYear05 5.81%
10 Years rr_AverageAnnualReturnYear10 6.48%
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 10.39%
Annual Return 2002 rr_AnnualReturn2002 8.85%
Annual Return 2003 rr_AnnualReturn2003 3.52%
Annual Return 2004 rr_AnnualReturn2004 5.68%
Annual Return 2005 rr_AnnualReturn2005 4.56%
Annual Return 2006 rr_AnnualReturn2006 2.53%
Annual Return 2007 rr_AnnualReturn2007 4.58%
Annual Return 2008 rr_AnnualReturn2008 (2.74%)
Annual Return 2009 rr_AnnualReturn2009 14.84%
Annual Return 2010 rr_AnnualReturn2010 8.10%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.23%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.23%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.41% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.41%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.33% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.33%)
1 Year rr_AverageAnnualReturnYear01 4.04%
5 Years rr_AverageAnnualReturnYear05 4.50%
10 Years rr_AverageAnnualReturnYear10 5.53%
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.82% [86]
5 Years rr_AverageAnnualReturnYear05 2.74% [86]
10 Years rr_AverageAnnualReturnYear10 3.68% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.88% [86]
5 Years rr_AverageAnnualReturnYear05 2.82% [86]
10 Years rr_AverageAnnualReturnYear10 3.66% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 518
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 720
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 947
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,485
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,485
1 Year rr_AverageAnnualReturnYear01 3.79%
5 Years rr_AverageAnnualReturnYear05 4.43%
10 Years rr_AverageAnnualReturnYear10 5.38%
(PIMCO Bond Funds - Retail) | (PIMCO Global Bond Fund (U.S. Dollar-Hedged)) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 6.30%
5 Years rr_AverageAnnualReturnYear05 4.52%
10 Years rr_AverageAnnualReturnYear10 5.14%
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

[1]
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a portfolio of U.S. government securities. The Fund may invest in the following: U.S. Treasury bills, notes, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government (including its agencies and instrumentalities) and repurchase agreements secured by such obligations. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, C and R shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Citigroup 3-Month Treasury Bill Index. The index is an unmanaged index representing monthly return equivalents of yield averages of the last 3 month Treasury Bill issues. The Fund began operations on 01/27/09. Index comparisions began on 01/31/09. The Lipper Institutional U.S. Government Money Markets Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest principally in financial instruments issued or guaranteed by the U.S. government, its agencies, or its instrumentalities with dollar-weighted average maturities of less than 90 days.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.01%. For the periods shown in the bar chart, the highest quarterly return was 0.01% in the Q1 2010, and the lowest quarterly return was 0.01% in the Q1 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (1/27/2009)
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Lipper Institutional U.S. Government Money Markets Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.02%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.07%
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.14%
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 241
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 542
Annual Return 2010 rr_AnnualReturn2010 0.03%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.01%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.01%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 0.01% in the Q1 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 0.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 0.01% in the Q1 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 0.01%
1 Year rr_AverageAnnualReturnYear01 0.03%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.07%
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.02% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.03% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.02% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.04% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 241
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 542
1 Year rr_AverageAnnualReturnYear01 0.03%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.07%
(PIMCO Bond Funds - Retail) | (PIMCO Government Money Market Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 241
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 542
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 241
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 542
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,990% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1990.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of securities of varying maturities issued by the Government National Mortgage Association ("GNMA"), which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. The Fund is neither sponsored by nor affiliated with GNMA. The average portfolio duration of this Fund normally varies from one to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody's Investors Service, Inc. ("Moody's "), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), subject to a minimum rating of Baa by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The Fund may not invest in securities denominated in foreign currencies, but may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in U.S. dollar-denominated securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.

GNMA, a wholly owned U.S. Government corporation, is authorized to guarantee, with the full faith and credit of the U.S. Government, the timely payment of principal and interest on securities issued by institutions approved by GNMA and backed by pools of mortgages insured by the Federal Housing Administration, or guaranteed by the Department of Veterans Affairs. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A shares (November 30, 2000), Class B and C shares (May 31, 2001), performance information shown in t he bar chart and table for those classes is based on the performance of the Fund's Institutional Class shares,which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees, administrative fees and other expenses paid by Class A, B and C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital GNMA Index is an unmanaged index covering mortgage-backed pass-through securities GNMA. The Lipper GNMA Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in mortgages/securities issued or guaranteed as to principal and interest by the U.S. government and certain federal agencies.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.48%. For the periods shown in the bar chart, the highest quarterly return was 4.55% in the Q1 2001, and the lowest quarterly return was -0.71% in the Q2 2004.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Barclays Capital GNMA Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.67%
5 Years rr_AverageAnnualReturnYear05 6.29%
10 Years rr_AverageAnnualReturnYear10 5.86%
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Lipper GNMA Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.16%
5 Years rr_AverageAnnualReturnYear05 5.86%
10 Years rr_AverageAnnualReturnYear10 5.26%
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [12]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 464
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 654
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 860
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,453
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 464
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 654
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 860
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,453
Annual Return 2001 rr_AnnualReturn2001 11.72%
Annual Return 2002 rr_AnnualReturn2002 8.54%
Annual Return 2003 rr_AnnualReturn2003 2.93%
Annual Return 2004 rr_AnnualReturn2004 3.71%
Annual Return 2005 rr_AnnualReturn2005 2.80%
Annual Return 2006 rr_AnnualReturn2006 4.64%
Annual Return 2007 rr_AnnualReturn2007 7.03%
Annual Return 2008 rr_AnnualReturn2008 4.87%
Annual Return 2009 rr_AnnualReturn2009 9.32%
Annual Return 2010 rr_AnnualReturn2010 7.53%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.48%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.48%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 4.55% in the Q1 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.55%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.71% in the Q2 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.71%)
1 Year rr_AverageAnnualReturnYear01 3.54%
5 Years rr_AverageAnnualReturnYear05 5.85%
10 Years rr_AverageAnnualReturnYear10 5.86%
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.10% [86]
5 Years rr_AverageAnnualReturnYear05 3.80% [86]
10 Years rr_AverageAnnualReturnYear10 4.05% [86]
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.38% [86]
5 Years rr_AverageAnnualReturnYear05 3.80% [86]
10 Years rr_AverageAnnualReturnYear10 3.95% [86]
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.66% [12]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 519
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 723
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 952
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,496
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 169
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 523
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 902
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,496
1 Year rr_AverageAnnualReturnYear01 3.24%
5 Years rr_AverageAnnualReturnYear05 5.79%
10 Years rr_AverageAnnualReturnYear10 5.70%
(PIMCO Bond Funds - Retail) | (PIMCO GNMA Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.66% [12]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 269
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 523
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 902
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,965
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 169
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 523
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 902
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,965
1 Year rr_AverageAnnualReturnYear01 5.74%
5 Years rr_AverageAnnualReturnYear05 5.87%
10 Years rr_AverageAnnualReturnYear10 5.47%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 36% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 36.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of high yield securities ("junk bonds"), which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements, rated below investment grade by Moody's Investors Services, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch") or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 20% of its total assets in securities rated Caa or below by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The remainder of the Fund's assets may be invested in investment grade Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. an d non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within one year (plus or minus) of the duration of the BofA Merrill Lynch U.S. High Yield BB-B Rated Constrained Index, which as of June 30, 2011 was 4.65 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest up to 20% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table for Class R shares is based on the performance of the Fund's Institutional Class sha res, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch U.S. High Yield, BB-B Rated, Constrained Index tracks the performance of BB-B Rated U.S. Dollar-denominated corporate bonds publicly issued in the U.S. domestic market. Qualifying bonds are capitalization-weighted provided the total allocation to an individual issuer (defined by Bloomberg tickers) does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face value of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. The Lipper High Current Yield Funds Average is a total return performance average of funds tracked by Lipper, Inc. that aim at high (relative) current yield from fixed income securities, have no quality or maturity restrictions, and tend to invest in lower grade debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.11%. For the periods shown in the bar chart, the highest quarterly return was 17.01% in the Q2 2009, and the lowest quarterly return was -13.14% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Lipper High Current Yield Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.28%
5 Years rr_AverageAnnualReturnYear05 6.62%
10 Years rr_AverageAnnualReturnYear10 7.03%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | BofA Merrill Lynch U.S. High Yield, BB-B Rated, Constrained Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.26%
5 Years rr_AverageAnnualReturnYear05 7.61%
10 Years rr_AverageAnnualReturnYear10 7.95%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 4.59%
Annual Return 2002 rr_AnnualReturn2002 (1.23%)
Annual Return 2003 rr_AnnualReturn2003 23.20%
Annual Return 2004 rr_AnnualReturn2004 9.02%
Annual Return 2005 rr_AnnualReturn2005 4.21%
Annual Return 2006 rr_AnnualReturn2006 9.00%
Annual Return 2007 rr_AnnualReturn2007 3.31%
Annual Return 2008 rr_AnnualReturn2008 (23.98%)
Annual Return 2009 rr_AnnualReturn2009 43.56%
Annual Return 2010 rr_AnnualReturn2010 13.84%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.11%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.11%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 17.01% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -13.14% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (13.14%)
1 Year rr_AverageAnnualReturnYear01 9.57%
5 Years rr_AverageAnnualReturnYear05 6.13%
10 Years rr_AverageAnnualReturnYear10 6.89%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.79% [86]
5 Years rr_AverageAnnualReturnYear05 3.39% [86]
10 Years rr_AverageAnnualReturnYear10 4.09% [86]
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.15% [86]
5 Years rr_AverageAnnualReturnYear05 3.56% [86]
10 Years rr_AverageAnnualReturnYear10 4.16% [86]
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 518
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 720
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 947
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,485
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,485
1 Year rr_AverageAnnualReturnYear01 9.50%
5 Years rr_AverageAnnualReturnYear05 6.08%
10 Years rr_AverageAnnualReturnYear10 6.74%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 12.00%
5 Years rr_AverageAnnualReturnYear05 6.15%
10 Years rr_AverageAnnualReturnYear10 6.50%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 117
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 365
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 633
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,398
1 Year rr_AverageAnnualReturnYear01 13.56%
5 Years rr_AverageAnnualReturnYear05 6.68%
10 Years rr_AverageAnnualReturnYear10 7.03%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax. Total return is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 25% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 25.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund intends to invest a portion of its assets in high yield Municipal Bonds and "private activity" bonds that are rated (at the time of purchase) below investment grade by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality (commonly known as "junk bonds"). The Fund may also invest, without limitation, in higher rated Municipal Bonds. The Fund may invest up to 30% of its assets in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, distributions derived from "private activity" bonds must be included in their AMT calculations, and as such a portion of the Fund's distribution may be subject to federal income tax. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds.

The average portfolio duration of this Fund normally varies from four to eleven years, based on PIMCO's forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on Municipal Bonds with the potential to offer high current income, typically looking for Municipal Bonds that can provide consistently attractive current yields or that are trading at competitive market prices. The "total return" sought by the Fund consists of both income earned on its investments and capital appreciation, if any, generally arising from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers t han a diversified fund.

The Fund may invest in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may also invest in derivative instruments, such as options, futures contracts or swap agreements, and invest in mortgage- or backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. In addition, the Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or d ollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class C shares (December 29, 2006), performance information shown in the table for Class C shares is based on t he performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's primary benchmark is a blend of 60% Barclays Capital High Yield Municipal Bond Index/40% Barclays Capital Municipal Bond Index. The Barclays Capital High Yield Municipal Bond Index is an unmanaged index made up of bonds that are non-investment grade, unrated, or rated below Ba1 by Moody's Investors Service with a remaining maturity of at least one year. The Barclays Capital Municipal Bond Index consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment-grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper High Yield Municipal Debt Funds Average consists of funds that invest at least 50% or more of their assets in municipal debt issues rated BBB or less.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.60%. For the periods shown in the bar chart, the highest quarterly return was 13.09% in the Q3 2009, and the lowest quarterly return was -21.10% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2006)
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | 60% Barclays Capital High Yield Municipal Bond Index/40% Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.67%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | Lipper High Yield Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.83%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.55%
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [58]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 453
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 618
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 797
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,316
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 453
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 618
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 797
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,316
Annual Return 2007 rr_AnnualReturn2007 (5.90%)
Annual Return 2008 rr_AnnualReturn2008 (28.02%)
Annual Return 2009 rr_AnnualReturn2009 31.23%
Annual Return 2010 rr_AnnualReturn2010 4.62%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.60%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.60%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.09% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.09%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -21.10% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.10%)
1 Year rr_AverageAnnualReturnYear01 (0.09%)
Fund Inception** rr_AverageAnnualReturnSinceInception (0.73%)
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.18%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.85%) [86]
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.62% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.02% [86]
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Municipal Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.60%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [58]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.54%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 257
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 486
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 839
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,834
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 157
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 486
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 839
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,834
1 Year rr_AverageAnnualReturnYear01 2.85%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.79%)
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Spectrum Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 14% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 14.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C, or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of high yield securities ("junk bonds"), which may be represented by convertibles, warrants, forwards or derivatives such as swap agreements, rated below investment grade by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest, without limitation, in Fixed Income Instruments and other securities of any rating below investment grade as rated by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of the Fund normally varies within one year (plus or minus) of the duration of the Bank of America/Merrill Lynch Global High Yield, Constrained Index (the "Benchmark"), which as of June 30, 2011 was 4.41 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest without limit in securities of foreign issuers or securities denominated in foreign currencies. The Fund may invest without limit in securities and instruments of corporate issuers economically tied to emerging market countries and may invest up to 10% of its total assets in sovereign debt issued by governments, their agencies or instrumentalities, or other government-related entities, that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies ) to within 10% (plus or minus) the Benchmark's foreign currency exposure, which as of June 30, 2011 was 0%.

The Fund may invest, without limitation, in derivative instruments, such as credit default swap agreements and total return swap agreements. The Fund may purchase or sell securities on a when issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 15% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including correlation, liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The BofA Merrill Lynch Global High Yield Constrained (USD Hedged) Index contains all securities in the BofA Merrill Lynch Global High Yield Index but caps issuer exposure at 2%. Index constituents are capitalization-weighted, based on their current amount outstanding, provided the total allocation to an individual issuer does not exceed 2%. Issuers that exceed the limit are reduced to 2% and the face value of each of their bonds is adjusted on a pro-rata basis. Similarly, the face values of bonds of all other issuers that fall below the 2% cap are increased on a pro-rata basis. In the event there are fewer than 50 issuers in the Index, each is equally weighted and the face values of their respective bonds are increased or decreased on a pro-rata basis.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Spectrum Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 662
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 876
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,493
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 662
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 876
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,493
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Spectrum Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.70%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 531
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 918
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,004
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 531
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 918
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,004
(PIMCO Bond Funds - Retail) | (PIMCO High Yield Spectrum Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.20%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [60]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 376
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 655
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,450
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 117
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 376
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 655
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,450
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund's primary investment objective is to maximize current income. Long-term capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 181% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 181.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objectives by investing under normal circumstances at least 65% of its total assets in a multi-sector portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will seek to maintain a high and consistent level of dividend income by investing in a broad array of fixed income sectors and utilizing income efficient implementation strategies. The capital appreciation sought by the Fund generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.

The Fund will generally allocate its assets among several investment sectors, which may include, without limitation: (i) high yield securities ("junk bonds") and investment grade corporate bonds of issuers located in the United States and non-U.S. countries, including emerging market countries; (ii) fixed income securities issued by U.S. and non-U.S. governments (including emerging market governments), their agencies and instrumentalities; (iii) mortgage-related and other asset backed securities; and (iv) foreign currencies, including those of emerging market countries. However, the Fund is not required to gain exposure to any one investment sector, and the Fund's exposure to any one investment sector will vary over time. The average portfolio duration of this Fund normally varies from two to eight years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest up to 50% of its total assets in high yield securities rated below investment grade but rated at least Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or if unrated, determined by PIMCO to be of comparable quality (except such limitation shall not apply to the Fund's investments in mortgage- and asset-backed securities). In addition, the Fund may invest, without limitation, in securities denominated in foreign currencies. The Fund may invest up to 20% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 10% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, C and R shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Multi-Sector Income Funds Average is a total return performance average of funds tracked by Lipper, Inc. that seek current income by allocating assets among several different fixed income securities sectors (with no more than 65% in any one sector except for defensive purposes), including U.S. government and foreign governments, with a significant portion of assets in securities rated below investment grade.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.33%. For the periods shown in the bar chart, the highest quarterly return was 9.48% in the Q3 2009, and the lowest quarterly return was -2.57% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/30/2007)
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.16%
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Lipper Multi-Sector Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.07%
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.96% [18]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.91% [74]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 464
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 665
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 881
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,504
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 464
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 665
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 881
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,504
Annual Return 2008 rr_AnnualReturn2008 (5.93%)
Annual Return 2009 rr_AnnualReturn2009 18.63%
Annual Return 2010 rr_AnnualReturn2010 19.96%
1 Year rr_AverageAnnualReturnYear01 15.27%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.30%
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.64% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.91% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.86% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.63% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.71% [18]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.66% [74]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 269
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 534
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 923
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,015
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 169
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 534
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 923
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,015
1 Year rr_AverageAnnualReturnYear01 18.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.62%
(PIMCO Bond Funds - Retail) | (PIMCO Income Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.11% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.21% [18]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.05%) [59]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.16% [74]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 118
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 379
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 660
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,462
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 118
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 379
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 660
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,462
1 Year rr_AverageAnnualReturnYear01 19.68%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.19%
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 325% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 325.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of investment grade corporate fixed income securities of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Assets not invested in investment grade corporate fixed income securities may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Credit Index, which as of June 30, 2011 was 6.43 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in inter est rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 15% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. Investment grade debt securities are rated Baa or higher by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 25% of its total assets in securities and instruments that are economically tied to emerging market co untries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of the Class A and C shares (July 30, 2004), performance information shown in the bar chart and table for those cl asses is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class A and C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Credit Index is an unmanaged index comprised of publicly issued U.S. corporate and specified non-U.S. debentures and secured notes that meet the specified maturity, liquidity, and quality requirements. To qualify, bonds must be SEC- registered. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years. The Fund began operations on 4/28/00. Index comparisons began on 4/30/00.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.09%. For the periods shown in the bar chart, the highest quarterly return was 9.07% in the Q2 2009, and the lowest quarterly return was -5.35% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Barclays Capital U.S. Long Credit Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.47%
5 Years rr_AverageAnnualReturnYear05 5.98%
10 Years rr_AverageAnnualReturnYear10 6.54%
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 8.65%
Annual Return 2002 rr_AnnualReturn2002 11.02%
Annual Return 2003 rr_AnnualReturn2003 9.94%
Annual Return 2004 rr_AnnualReturn2004 5.57%
Annual Return 2005 rr_AnnualReturn2005 2.11%
Annual Return 2006 rr_AnnualReturn2006 3.76%
Annual Return 2007 rr_AnnualReturn2007 6.73%
Annual Return 2008 rr_AnnualReturn2008 1.47%
Annual Return 2009 rr_AnnualReturn2009 18.27%
Annual Return 2010 rr_AnnualReturn2010 11.28%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.33%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.33%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 9.48% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 9.48%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.57% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.57%)
1 Year rr_AverageAnnualReturnYear01 7.07%
5 Years rr_AverageAnnualReturnYear05 7.31%
10 Years rr_AverageAnnualReturnYear10 7.36%
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.45% [86]
5 Years rr_AverageAnnualReturnYear05 4.68% [86]
10 Years rr_AverageAnnualReturnYear10 4.65% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.24% [86]
5 Years rr_AverageAnnualReturnYear05 4.77% [86]
10 Years rr_AverageAnnualReturnYear10 4.69% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Investment Grade Corporate Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 9.50%
5 Years rr_AverageAnnualReturnYear05 7.34%
10 Years rr_AverageAnnualReturnYear10 6.97%
(PIMCO Bond Funds - Retail) | (PIMCO Long Duration Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 240% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 240.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital Long Term Government/Credit Index, which as of June 30, 2011 was 13.22 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"),or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Long-Term Government/Credit Index is an unmanaged index of U.S. Government or Investment Grade Credit Securities having a maturity of 10 years or more. The Lipper Corporate Debt Funds BBB-Rated Funds Average consists of funds that invest at least 65% of their assets in corporate and government debt issues rated in the top four grades.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional*(1)

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.92%. For the periods shown in the bar chart, the highest quarterly return was 16.10% in the Q4 2008, and the lowest quarterly return was -5.92% in the Q1 2009.

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

(1) The bar chart and the Average Annual Total Returns Chart show performance of the Fund's Institutional Class shares, which are offered in a different prospectus. Class A shares would have had substantially similar annual returns because the shares are invested in the same portfolio. Annual returns would differ only to the extent that the Institutional Class and Class A shares have different expenses. Performance for Institutional Class shares in the Average Annual Returns Table does not reflect sales charges applicable to Class A shares.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2006)
(PIMCO Bond Funds - Retail) | (PIMCO Long Duration Total Return Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.91% [17]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 464
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 654
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 860
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,453
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 464
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 654
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 860
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,453
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term Credit Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 341% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 341.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Fund's benchmark, the Barclays Capital U.S. Long Credit Index, which as of June 30, 2011 was 12.47 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. In addition, the dollar-weighted average portfolio maturity of the Fund, under normal circumstances, is expected to be mo re than ten years.

The Fund invests primarily in investment grade debt securities, but may invest up to 20% of its total assets in high yield securities ("junk bonds") that are rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 25% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. Consistent with other investment limitations, the Fund may invest, without limitation, in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital U.S. Long Credit Index. The index includes both corporate and non-corporate sectors with maturities equal to or greater than 10 years. The corporate sectors are Industrial, Utility, and Finance,which include both U.S. and non-U.S. corporations. The non-corporate sectors are Sovereign, Supranational, Foreign Agency, and Foreign Local Government. The Lipper General Bond Funds Average is a total return performance average of funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional*(1)

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.07%. For the periods shown in the bar chart, the highest quarterly return was 8.09% in the Q3 2010, and the lowest quarterly return was 2.78% in the Q4 2010.

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

(1) The bar chart and the Average Annual Total Returns Chart show performance of the Fund's Institutional Class shares, which are offered in a different prospectus. Class A shares would have had substantially similar annual returns because the shares are invested in the same portfolio. Annual returns would differ only to the extent that the Institutional Class and Class A shares have different expenses. Performance for Institutional Class shares in the Average Annual Returns Table does not reflect sales charges applicable to Class A shares.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2009)
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term Credit Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.70%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.96% [21]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 469
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 669
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 886
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,509
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 469
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 669
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 886
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,509
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 363% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 363.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of fixed income securities that are issued or guaranteed by the U.S. Government, its agencies or government-sponsored enterprises ("U.S. Government Securities"), which may be represented by forwards or derivatives such as options, future contracts or swap agreements. Assets not invested in U.S. Government Securities may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. While Pacific Investment Management Company LLC ("PIMCO") may invest in derivatives at any time it deems appropriate, it will generally do so when it believes that U.S. Government Securities are overvalued relative to derivative instruments. This Fund will normally have a minimum average portfolio duration of eight years. D uration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. In addition, the dollar-weighted average portfolio maturity of the Fund, under normal circumstances, is expected to be more than ten years.

The Fund's investments in Fixed Income Instruments are limited to those of investment grade U.S. dollar-denominated securities of U.S. issuers that are rated at least A by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. In addition, the Fund may only invest up to 10% of its total assets in securities rated A by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality and may only invest up to 25% of its total assets in securities rated Aa by Moody's, or equivalently rated by S&P or Fitch or, if unrated, determined by PIMCO to be of comparable quality.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The F und may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Long-Term Treasury Index consists of U.S. Treasury issues with maturities of 10 or more years. The Lipper General U.S. Government Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in U.S. government and agency issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.92%. For the periods shown in the bar chart, the highest quarterly return was 13.47% in the Q4 2008, and the lowest quarterly return was -7.83% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Lipper General U.S. Government Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.86%
5 Years rr_AverageAnnualReturnYear05 4.75%
10 Years rr_AverageAnnualReturnYear10 4.65%
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Barclays Capital Long-Term Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.38%
5 Years rr_AverageAnnualReturnYear05 5.73%
10 Years rr_AverageAnnualReturnYear10 6.57%
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.575%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.835% [13]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 457
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 632
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 821
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,368
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 457
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 632
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 821
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,368
Annual Return 2001 rr_AnnualReturn2001 5.10%
Annual Return 2002 rr_AnnualReturn2002 18.41%
Annual Return 2003 rr_AnnualReturn2003 3.30%
Annual Return 2004 rr_AnnualReturn2004 6.83%
Annual Return 2005 rr_AnnualReturn2005 4.46%
Annual Return 2006 rr_AnnualReturn2006 0.76%
Annual Return 2007 rr_AnnualReturn2007 8.77%
Annual Return 2008 rr_AnnualReturn2008 13.15%
Annual Return 2009 rr_AnnualReturn2009 (2.47%)
Annual Return 2010 rr_AnnualReturn2010 11.65%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.92%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.92%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 16.10% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.10%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -5.92% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.92%)
1 Year rr_AverageAnnualReturnYear01 7.46%
5 Years rr_AverageAnnualReturnYear05 5.38%
10 Years rr_AverageAnnualReturnYear10 6.43%
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.34% [86]
5 Years rr_AverageAnnualReturnYear05 3.03% [86]
10 Years rr_AverageAnnualReturnYear10 4.15% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.13% [86]
5 Years rr_AverageAnnualReturnYear05 3.26% [86]
10 Years rr_AverageAnnualReturnYear10 4.21% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.575%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.585% [13]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 511
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 700
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 913
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,411
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 161
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 500
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 863
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,411
1 Year rr_AverageAnnualReturnYear01 7.37%
5 Years rr_AverageAnnualReturnYear05 5.33%
10 Years rr_AverageAnnualReturnYear10 6.28%
(PIMCO Bond Funds - Retail) | (PIMCO Long-Term U.S. Government Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.575%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.585% [13]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 261
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 500
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 863
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,884
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 161
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 500
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 863
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,884
1 Year rr_AverageAnnualReturnYear01 9.84%
5 Years rr_AverageAnnualReturnYear05 5.40%
10 Years rr_AverageAnnualReturnYear10 6.04%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 461% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 461.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after eight years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from one to three years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a part icular sector or security. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table for Class R shares is based on the performance of the Fund's Institutional Class sha res, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The BofA Merrill Lynch 1-3 Year U.S. Treasury Index is comprised of U.S. Treasury securities, other than inflation-protection securities and STRIPS, with at least $1 billion in outstanding face value and a remaining term to final maturity of at least one year and less than three years. Prior to September 25, 2009, the BofA Merrill Lynch Indicies were known as the Merrill Lynch Indicies. The Lipper Short Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.03%. For the periods shown in the bar chart, the highest quarterly return was 7.01% in the Q2 2009, and the lowest quarterly return was -3.89% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Lipper Short Investment Grade Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.96%
5 Years rr_AverageAnnualReturnYear05 3.76%
10 Years rr_AverageAnnualReturnYear10 3.72%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | BofA Merrill Lynch 1-3 Year U.S. Treasury Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.35%
5 Years rr_AverageAnnualReturnYear05 4.17%
10 Years rr_AverageAnnualReturnYear10 3.92%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.75%
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 305
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 475
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 659
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,193
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 305
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 475
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 659
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,193
Annual Return 2001 rr_AnnualReturn2001 7.49%
Annual Return 2002 rr_AnnualReturn2002 7.15%
Annual Return 2003 rr_AnnualReturn2003 2.49%
Annual Return 2004 rr_AnnualReturn2004 1.91%
Annual Return 2005 rr_AnnualReturn2005 1.09%
Annual Return 2006 rr_AnnualReturn2006 3.32%
Annual Return 2007 rr_AnnualReturn2007 7.47%
Annual Return 2008 rr_AnnualReturn2008 (1.68%)
Annual Return 2009 rr_AnnualReturn2009 12.92%
Annual Return 2010 rr_AnnualReturn2010 4.56%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.07%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.07%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 8.09% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.09%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 2.78% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 2.78%
1 Year rr_AverageAnnualReturnYear01 2.20%
5 Years rr_AverageAnnualReturnYear05 4.73%
10 Years rr_AverageAnnualReturnYear10 4.36%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.03% [86]
5 Years rr_AverageAnnualReturnYear05 3.21% [86]
10 Years rr_AverageAnnualReturnYear10 2.90% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.49% [86]
5 Years rr_AverageAnnualReturnYear05 3.15% [86]
10 Years rr_AverageAnnualReturnYear10 2.85% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 658
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 790
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,045
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,643
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 158
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 490
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 845
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,643
1 Year rr_AverageAnnualReturnYear01 (1.22%)
5 Years rr_AverageAnnualReturnYear05 4.09%
10 Years rr_AverageAnnualReturnYear10 4.05%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 212
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 350
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 606
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,340
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 112
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 350
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 606
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,340
1 Year rr_AverageAnnualReturnYear01 3.25%
5 Years rr_AverageAnnualReturnYear05 4.73%
10 Years rr_AverageAnnualReturnYear10 4.10%
(PIMCO Bond Funds - Retail) | (PIMCO Low Duration Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.05%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 107
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 334
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 579
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,283
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 107
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 334
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 579
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,283
1 Year rr_AverageAnnualReturnYear01 4.30%
5 Years rr_AverageAnnualReturnYear05 4.95%
10 Years rr_AverageAnnualReturnYear10 4.34%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

[1]
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing at least 97% of its total assets in a diversified portfolio of money market securities that are in the highest rating category for short-term obligations. The Fund also may invest up to 3% of its total assets in money market securities that are in the second-highest rating category for short-term obligations that have a remaining maturity of 45 days or less. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund may invest in the following: obligations of the U.S. Government (including its agencies and instrumentalities); short-term corporate debt securities of domestic and foreign corporations; obligations of domestic and foreign commercial banks, savings banks, and savings and loan associations; and commercial paper. The Fund may invest more than 25% of its total assets in or obligations issued by U.S. banks.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and two indices of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares. To obtain the Fund's current yield, call 1-800-426-0107. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.

The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3 month Treasury Bill issues. The Lipper Money Market Funds Index is an average of the 30 largest equal weighted Money Market Funds as compiled by Lipper Analytical, Inc. The Lipper Institutional Money Market Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in high quality financial instruments (rated in the top two grades) with dollar-weighted maturities of less than 90 days.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.04%. For the periods shown in the bar chart, the highest quarterly return was 1.35% in the Q1 2001, and the lowest quarterly return was 0.01% in the Q1 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Lipper Institutional Money Market Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.07%
5 Years rr_AverageAnnualReturnYear05 2.51%
10 Years rr_AverageAnnualReturnYear10 2.29%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
5 Years rr_AverageAnnualReturnYear05 2.30%
10 Years rr_AverageAnnualReturnYear10 2.26%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Lipper Money Market Funds Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03%
5 Years rr_AverageAnnualReturnYear05 2.37%
10 Years rr_AverageAnnualReturnYear10 2.10%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.47%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.57% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 58
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 183
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 318
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 714
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 58
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 183
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 318
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 714
Annual Return 2001 rr_AnnualReturn2001 3.69%
Annual Return 2002 rr_AnnualReturn2002 1.24%
Annual Return 2003 rr_AnnualReturn2003 0.55%
Annual Return 2004 rr_AnnualReturn2004 0.77%
Annual Return 2005 rr_AnnualReturn2005 2.71%
Annual Return 2006 rr_AnnualReturn2006 4.56%
Annual Return 2007 rr_AnnualReturn2007 4.78%
Annual Return 2008 rr_AnnualReturn2008 2.06%
Annual Return 2009 rr_AnnualReturn2009 0.11%
Annual Return 2010 rr_AnnualReturn2010 0.05%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.92%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.92%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.47% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.47%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -7.83% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.83%)
1 Year rr_AverageAnnualReturnYear01 0.05%
5 Years rr_AverageAnnualReturnYear05 2.29%
10 Years rr_AverageAnnualReturnYear10 2.04%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03% [86]
5 Years rr_AverageAnnualReturnYear05 1.49% [86]
10 Years rr_AverageAnnualReturnYear10 1.30% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.03% [86]
5 Years rr_AverageAnnualReturnYear05 1.49% [86]
10 Years rr_AverageAnnualReturnYear10 1.30% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.47%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.47% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 150
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 465
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 803
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,181
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 150
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 465
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 803
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,181
1 Year rr_AverageAnnualReturnYear01 0.05%
5 Years rr_AverageAnnualReturnYear05 1.89%
10 Years rr_AverageAnnualReturnYear10 1.61%
(PIMCO Bond Funds - Retail) | (PIMCO Money Market Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.47%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.57% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 58
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 183
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 318
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 714
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 58
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 183
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 318
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 714
1 Year rr_AverageAnnualReturnYear01 0.05%
5 Years rr_AverageAnnualReturnYear05 2.30%
10 Years rr_AverageAnnualReturnYear10 2.04%
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 966% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 966.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of mortgage-related Fixed Income Instruments of varying maturities (such as mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities and mortgage dollar rolls), which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from one to seven years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The F und invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may not invest in securities denominated in foreign currencies, but may invest without limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in U.S. dollar-denominated securities and instruments that are economically tied to emerging market countries.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may,without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security. The Fu nd may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A, B and C shares (July 31, 2000), performance information shown in the bar chart and table for those classes is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class A, B and C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. MBS Fixed Rate Index covers the mortgage-backed pass-through securities of Ginnie Mae (GNMA), Fannie Mae (FNMA), and Freddie Mac (FHLMC). The MBS Index is formed by grouping the universe of over 600,000 individual fixed rate MBS pools into approximately 3,500 generic aggregates. The Lipper U.S. Mortgage Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in mortgages/securities issued or guaranteed as to principal and interest by the U.S. government and certain federal agencies.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.38%. For the periods shown in the bar chart, the highest quarterly return was 5.21% in the Q3 2009, and the lowest quarterly return was -1.59% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Barclays Capital U.S. MBS Fixed Rate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.50%
5 Years rr_AverageAnnualReturnYear05 6.38%
10 Years rr_AverageAnnualReturnYear10 5.91%
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Lipper U.S. Mortgage Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.64%
5 Years rr_AverageAnnualReturnYear05 4.98%
10 Years rr_AverageAnnualReturnYear10 4.78%
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 9.58%
Annual Return 2002 rr_AnnualReturn2002 9.01%
Annual Return 2003 rr_AnnualReturn2003 3.79%
Annual Return 2004 rr_AnnualReturn2004 4.53%
Annual Return 2005 rr_AnnualReturn2005 2.05%
Annual Return 2006 rr_AnnualReturn2006 5.14%
Annual Return 2007 rr_AnnualReturn2007 6.91%
Annual Return 2008 rr_AnnualReturn2008 (0.83%)
Annual Return 2009 rr_AnnualReturn2009 13.94%
Annual Return 2010 rr_AnnualReturn2010 8.95%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.03%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.03%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.01% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -3.89% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.89%)
1 Year rr_AverageAnnualReturnYear01 4.83%
5 Years rr_AverageAnnualReturnYear05 5.90%
10 Years rr_AverageAnnualReturnYear10 5.82%
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.50% [86]
5 Years rr_AverageAnnualReturnYear05 3.62% [86]
10 Years rr_AverageAnnualReturnYear10 3.72% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.12% [86]
5 Years rr_AverageAnnualReturnYear05 3.69% [86]
10 Years rr_AverageAnnualReturnYear10 3.72% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 518
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 720
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 947
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,485
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,485
1 Year rr_AverageAnnualReturnYear01 4.64%
5 Years rr_AverageAnnualReturnYear05 5.84%
10 Years rr_AverageAnnualReturnYear10 5.67%
(PIMCO Bond Funds - Retail) | (PIMCO Mortgage-Backed Securities Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 268
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,955
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,955
1 Year rr_AverageAnnualReturnYear01 7.14%
5 Years rr_AverageAnnualReturnYear05 5.92%
10 Years rr_AverageAnnualReturnYear10 5.43%
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax, consistent with preservation of capital. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund may invest up to 20% of its net assets in U.S. Government Securities, money market instruments and/or "private activity" bonds. For shareholders subject to the federal alternative minimum tax ("AMT"), distributions derived from "private activity" bonds must be included in their AMT calculations, and as such a portion of the Fund's distribution may be subject to federal income tax. The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in Municipal Bonds or "private activity" bonds which are high yield securities ("junk bonds") rated at least Ba by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest more than 25% of its total asset s in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The average portfolio duration of this Fund normally varies from three to ten years, based on PIMCO's forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciat ion, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, and invest in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflect the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital Municipal Bond Index consists of a broad selection of investment-grade general obligation and revenue bonds of maturities ranging from one year to 30 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. The Lipper General Municipal Debt Fund Index consists of funds that invest at least 65% of their assets in municipal debt issues in the top four credit ratings. It does not take into account sales charges.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.00%. For the periods shown in the bar chart, the highest quarterly return was 10.53% in the Q3 2009, and the lowest quarterly return was -12.53% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.09%
10 Years rr_AverageAnnualReturnYear10 4.83%
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Lipper General Municipal Debt Fund Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.65%
5 Years rr_AverageAnnualReturnYear05 3.05%
10 Years rr_AverageAnnualReturnYear10 4.11%
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 449
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 606
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 776
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,270
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 449
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 606
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 776
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,270
Annual Return 2001 rr_AnnualReturn2001 7.36%
Annual Return 2002 rr_AnnualReturn2002 7.91%
Annual Return 2003 rr_AnnualReturn2003 4.92%
Annual Return 2004 rr_AnnualReturn2004 2.51%
Annual Return 2005 rr_AnnualReturn2005 3.48%
Annual Return 2006 rr_AnnualReturn2006 5.04%
Annual Return 2007 rr_AnnualReturn2007 0.48%
Annual Return 2008 rr_AnnualReturn2008 (19.88%)
Annual Return 2009 rr_AnnualReturn2009 20.28%
Annual Return 2010 rr_AnnualReturn2010 3.23%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.04%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.35% in the Q1 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.35%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was 0.01% in the Q1 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn 0.01%
1 Year rr_AverageAnnualReturnYear01 0.14%
5 Years rr_AverageAnnualReturnYear05 0.37%
10 Years rr_AverageAnnualReturnYear10 2.76%
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.02% [86]
5 Years rr_AverageAnnualReturnYear05 0.23% [86]
10 Years rr_AverageAnnualReturnYear10 2.47% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.34% [86]
5 Years rr_AverageAnnualReturnYear05 0.77% [86]
10 Years rr_AverageAnnualReturnYear10 2.68% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 653
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 774
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,018
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,588
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 153
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 474
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 818
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,588
1 Year rr_AverageAnnualReturnYear01 (2.50%)
5 Years rr_AverageAnnualReturnYear05 (0.11%)
10 Years rr_AverageAnnualReturnYear10 2.54%
(PIMCO Bond Funds - Retail) | (PIMCO Municipal Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.50%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 227
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,511
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 127
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 397
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 686
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,511
1 Year rr_AverageAnnualReturnYear01 1.73%
5 Years rr_AverageAnnualReturnYear05 0.48%
10 Years rr_AverageAnnualReturnYear10 2.56%
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal and New York income tax. Capital appreciation is a secondary objective.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 25% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 25.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and New York income tax ("New York Municipal Bonds"). New York Municipal Bonds generally are issued by or on behalf of the State of New York and its political subdivisions, financing authorities and their agencies. The Fund may invest in debt securities of an issuer located outside of New York whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from regular federal income tax and New York income tax. By concentrating its investments in New York, the Fund will be subject to New York State-Specific Risk.

The Fund may invest without limitation in "private activity" bonds whose interest is a tax-preference item for purposes of the federal alternative minimum tax ("AMT"). For shareholders subject to the AMT, a substantial portion of the Fund's distributions may not be exempt from federal income tax. The Fund may invest 25% or more of its total assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds") that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The Fund may invest the remainder of its net assets in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies from three to twelve years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices. Capital appreciation, if any, generally arises from decreases in interest rates or improving credit fundamentals for a particular state, municipality or issuer.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts,whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A shares (October 19, 1999), and Class C shares (August 31, 2009) performance information shown in the table i s based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class A and Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital New York Insured Municipal Bond Index is an unmanaged index comprised of a broad selection of insured general obligation and revenue bonds of New York issuers with remaining maturities ranging from one year to 30 years. The Lipper New York Municipal Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in municipal debt issues that are exempt from taxation in New York.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.08%. For the periods shown in the bar chart, the highest quarterly return was 7.68% in the Q3 2009, and the lowest quarterly return was -3.84% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Lipper New York Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.67%
5 Years rr_AverageAnnualReturnYear05 2.87%
10 Years rr_AverageAnnualReturnYear10 3.86%
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Barclays Capital New York Insured Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.30%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.94%
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.775%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 451
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 613
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 789
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,299
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 451
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 613
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 789
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,299
Annual Return 2001 rr_AnnualReturn2001 6.31%
Annual Return 2002 rr_AnnualReturn2002 11.17%
Annual Return 2003 rr_AnnualReturn2003 4.50%
Annual Return 2004 rr_AnnualReturn2004 3.31%
Annual Return 2005 rr_AnnualReturn2005 2.72%
Annual Return 2006 rr_AnnualReturn2006 4.40%
Annual Return 2007 rr_AnnualReturn2007 2.24%
Annual Return 2008 rr_AnnualReturn2008 (4.84%)
Annual Return 2009 rr_AnnualReturn2009 12.91%
Annual Return 2010 rr_AnnualReturn2010 3.04%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.08%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.08%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 10.53% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.53%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -12.53% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.53%)
1 Year rr_AverageAnnualReturnYear01 (0.06%)
5 Years rr_AverageAnnualReturnYear05 2.77%
10 Years rr_AverageAnnualReturnYear10 4.15%
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.10%) [86]
5 Years rr_AverageAnnualReturnYear05 2.62% [86]
10 Years rr_AverageAnnualReturnYear10 3.90% [86]
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.07% [86]
5 Years rr_AverageAnnualReturnYear05 2.74% [86]
10 Years rr_AverageAnnualReturnYear10 3.90% [86]
(PIMCO Bond Funds - Retail) | (PIMCO New York Municipal Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.525%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 255
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 482
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 832
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,818
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 155
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 482
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 832
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,818
1 Year rr_AverageAnnualReturnYear01 1.26%
5 Years rr_AverageAnnualReturnYear05 2.64%
10 Years rr_AverageAnnualReturnYear10 3.75%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 174% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 174.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after seven years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks its investment objective by investing under normal circumstances at least 80% of its net assets in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Assets not invested in inflation-indexed bonds may be invested in other types of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. "Real return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure.

Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. Effective duration takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Because market convention for bonds is to use nominal yields to measure duration, duration for real return bonds, which are based on real yields, are converted to nominal durations through a conversion factor. The resulting nominal duration typically can range from 20% and 90% of the respective real duration. All security holdings will be measured in effective (nominal) duration terms. Similarly, the effective duration of the Barclays Capital U.S. TIPS Index will be calculated using the same conversion factors. The effective duration of this Fund normally varies within three years (plus or minus) of the effective duration of the Barclays Capital U.S. TIPS Index which as of June 30, 2011, as converted, was 5.92 years.

The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality.

The Fund also may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table for Class R shares is based on the performance of the Fund's Institutional Class sha res, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. TIPS Index is an unmanaged market index comprised of all U.S. Treasury Inflation Protected Securities rated investment grade (Baa3 or better), have at least one year to final maturity, and at least $250 million par amount outstanding. Performance data for this index prior to 10/97 represents returns of the Barclays Capital Inflation Notes Index. The Lipper Treasury Inflation-Protected Securities Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest primarily in inflation-indexed fixed income securities issued in the United States. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The index returns allow for a comparison of the Fund's performance to an index of funds with similar investment objectives as the Fund.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.02%. For the periods shown in the bar chart, the highest quarterly return was 7.58% in the Q3 2002, and the lowest quarterly return was -5.87% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Barclays Capital U.S. TIPS Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.31%
5 Years rr_AverageAnnualReturnYear05 5.33%
10 Years rr_AverageAnnualReturnYear10 7.02%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Lipper Treasury Inflation-Protected Securities Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.86%
5 Years rr_AverageAnnualReturnYear05 4.32%
10 Years rr_AverageAnnualReturnYear10 6.29%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 459
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 639
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 834
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,396
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 459
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 639
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 834
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,396
Annual Return 2001 rr_AnnualReturn2001 8.24%
Annual Return 2002 rr_AnnualReturn2002 16.54%
Annual Return 2003 rr_AnnualReturn2003 8.02%
Annual Return 2004 rr_AnnualReturn2004 8.70%
Annual Return 2005 rr_AnnualReturn2005 2.17%
Annual Return 2006 rr_AnnualReturn2006 (0.17%)
Annual Return 2007 rr_AnnualReturn2007 11.09%
Annual Return 2008 rr_AnnualReturn2008 (6.84%)
Annual Return 2009 rr_AnnualReturn2009 18.43%
Annual Return 2010 rr_AnnualReturn2010 7.33%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.02%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.02%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 7.58% in the Q3 2002
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.58%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -5.87% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.87%)
1 Year rr_AverageAnnualReturnYear01 4.11%
5 Years rr_AverageAnnualReturnYear05 4.96%
10 Years rr_AverageAnnualReturnYear10 6.78%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.41% [86]
5 Years rr_AverageAnnualReturnYear05 3.17% [86]
10 Years rr_AverageAnnualReturnYear10 4.76% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.66% [86]
5 Years rr_AverageAnnualReturnYear05 3.15% [86]
10 Years rr_AverageAnnualReturnYear10 4.64% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 664
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 808
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,076
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,710
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 164
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 508
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 876
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,710
1 Year rr_AverageAnnualReturnYear01 1.53%
5 Years rr_AverageAnnualReturnYear05 4.48%
10 Years rr_AverageAnnualReturnYear10 6.55%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 238
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 431
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 745
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,635
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 138
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 431
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 745
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,635
1 Year rr_AverageAnnualReturnYear01 5.80%
5 Years rr_AverageAnnualReturnYear05 5.08%
10 Years rr_AverageAnnualReturnYear10 6.58%
(PIMCO Bond Funds - Retail) | (PIMCO Real Return Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11% [14]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 113
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 353
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 612
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,352
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 113
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 353
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 612
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,352
1 Year rr_AverageAnnualReturnYear01 7.07%
5 Years rr_AverageAnnualReturnYear05 5.34%
10 Years rr_AverageAnnualReturnYear10 6.84%
(PIMCO Bond Funds - Retail) | (PIMCO Senior Floating Rate Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks a high level of current income, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of floating or adjustable rate senior secured loans, senior corporate debt and other senior Fixed Income Instruments that effectively enable the Fund to achieve a floating rate of income. "Fixed Income Instruments" include bank loans, bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. entities.

A senior secured debt security holds a senior position in the issuer's capital structure and is typically secured by collateral such that, under normal circumstances, holders (such as the Fund) enjoy a priority claim to some or all of the issuer's assets in the event of default as compared to other creditors of the issuer. Variable and floating-rate Fixed Income Instruments generally pay interest at rates that adjust whenever a specified interest rate changes and/or reset on predetermined dates (such as the last day of a month or calendar quarter). The Fund may also invest in fixed-rate Fixed Income Instruments, including those with respect to which the Fund has entered into derivative instruments to effectively convert the fixed-rate interest payments into floating-rate interest payments.

The Fund may invest in both investment grade securities and high yield securities ("junk bonds") and may primarily invest its assets in below investment grade securities subject to a maximum of 5%of its total assets in securities rated below Caa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities and instruments of issuers economically tied to emerging market countries. The Fund may also invest up to 20% of its total assets in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 5% of its total assets.

The Fund may invest in derivative instruments, such as credit default swap and total return swap agreements, interest rate swaps, futures and options, subject to applicable law and any other restrictions described in the prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis, including currency forwards, and may engage in short sales.

The average portfolio duration of the Fund will normally vary within one year (plus or minus) of the duration of the Credit Suisse Institutional Leveraged Loan Index, which was, as calculated by PIMCO, less than 6 months as of the date of the prospectus. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Senior Debt Risk: the risk that investing in senior debt exposes the Fund to heightened credit risk and liquidity risk. If the issuer prepays, the Fund will have to reinvest the proceeds in other senior debt or instruments that may pay lower interest rates

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks, including the risk that a court will subordinate high yield senior debt to other debt of the issuer or take other actions detrimental to holders of the senior debt. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is be updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Credit Suisse Institutional Leverage Loan Index. The Credit Suisse Institutional Leveraged Loan Index is a sub-index of the Credit Suisse Leveraged Loan Index and is designed to more closely reflect the investment criteria of institutional investors by sampling a lower volatility component of the market. The Index is formed by excluding the following facilities from the Credit Suisse Leveraged Loan Index: facility types TL and TLa, facilities priced 90 or lower at the beginning of the month and facilities rated CC, C or Default. The Credit Suisse Leveraged Loan Index is designed to mirror the investable universe of the U.S. dollar-denominated leveraged loan market.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture   
(PIMCO Bond Funds - Retail) | (PIMCO Senior Floating Rate Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Redemption Fees rr_RedemptionFeeOverRedemption (1.00%) [2]
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.12%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 483
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 712
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 483
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 712
(PIMCO Bond Funds - Retail) | (PIMCO Senior Floating Rate Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Redemption Fees rr_RedemptionFeeOverRedemption (1.00%) [2]
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.87%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 288
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 582
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 188
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 582
(PIMCO Bond Funds - Retail) | (PIMCO Senior Floating Rate Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption Fees rr_RedemptionFeeOverRedemption (1.00%) [2]
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.02% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.37%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.02%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 137
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 428
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks high current income exempt from federal income tax, consistent with preservation of capital.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 56% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 56.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities.

The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may only invest in investment grade debt securities. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds. The average portfolio duration of this Fund varies based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed three years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The portfolio manager focuses on bonds with the potential to offer attractive current income, typically looking for bonds that can provide consistently attractive current yields or that are trading at competitive market prices.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and Class C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A and Class C shares (March 28, 2002), performance information shown in the bar chart and table is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees and other expenses paid by Class A and Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital 1 Year Municipal Bond Index is an unmanaged index comprised of national municipal bond issues having a maturity of at least one year and less than two years. The Lipper Short Municipal Debt Funds Average is a total performance average of funds tracked by Lipper, Inc. that invest in municipal debt issues with dollar-weighted maturities of less than three years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.58%. For the periods shown in the bar chart, the highest quarterly return was 2.58% in the Q1 2009, and the lowest quarterly return was -11.00% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Barclays Capital California 1 Year Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.17%
5 Years rr_AverageAnnualReturnYear05 3.35%
10 Years rr_AverageAnnualReturnYear10 3.06%
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Lipper Short Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.22%
5 Years rr_AverageAnnualReturnYear05 2.55%
10 Years rr_AverageAnnualReturnYear10 2.73%
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 298
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 453
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 622
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,111
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 298
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 453
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 622
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,111
Annual Return 2001 rr_AnnualReturn2001 4.56%
Annual Return 2002 rr_AnnualReturn2002 2.53%
Annual Return 2003 rr_AnnualReturn2003 2.07%
Annual Return 2004 rr_AnnualReturn2004 0.39%
Annual Return 2005 rr_AnnualReturn2005 1.59%
Annual Return 2006 rr_AnnualReturn2006 3.98%
Annual Return 2007 rr_AnnualReturn2007 0.81%
Annual Return 2008 rr_AnnualReturn2008 (14.07%)
Annual Return 2009 rr_AnnualReturn2009 7.91%
Annual Return 2010 rr_AnnualReturn2010 1.50%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.58%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.58%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.58% in the Q1 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.58%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -11.00% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.00%)
1 Year rr_AverageAnnualReturnYear01 (0.83%)
5 Years rr_AverageAnnualReturnYear05 (0.73%)
10 Years rr_AverageAnnualReturnYear10 0.74%
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.87%) [86]
5 Years rr_AverageAnnualReturnYear05 (0.82%) [86]
10 Years rr_AverageAnnualReturnYear10 0.44% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.19%) [86]
5 Years rr_AverageAnnualReturnYear05 (0.31%) [86]
10 Years rr_AverageAnnualReturnYear10 0.73% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Short Duration Municipal Income Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.48%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.03%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 205
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 328
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 569
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,259
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 105
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 328
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 569
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,259
1 Year rr_AverageAnnualReturnYear01 0.19%
5 Years rr_AverageAnnualReturnYear05 (0.57%)
10 Years rr_AverageAnnualReturnYear10 0.61%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 182% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 182.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after eight years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and will normally not exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. In addition, the dollar-weighted average portfolio maturity of the Fund, under normal circumstances, is expected not to exceed three years.

The Fund invests primarily in investment grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mort- gage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table for Class R shares is based on the performance of the Fund's Institutional Class sha res, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3 month Treasury Bill issues. The Lipper Ultra-Short Obligation Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues or better, and maintain a portfolio dollar-weighted average maturity between 91 and 365 days. The index returns allow for a comparison of the Fund's performance to an index of funds with similar investment objectives as the Fund.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.86%. For the periods shown in the bar chart, the highest quarterly return was 3.52% in the Q2 2009, and the lowest quarterly return was -2.03% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Lipper Ultra-Short Obligation Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.40%
5 Years rr_AverageAnnualReturnYear05 2.24%
10 Years rr_AverageAnnualReturnYear10 2.66%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Citigroup 3-Month Treasury Bill Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.13%
5 Years rr_AverageAnnualReturnYear05 2.30%
10 Years rr_AverageAnnualReturnYear10 2.26%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 0.50%
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 295
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 444
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 606
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,076
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 295
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 444
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 606
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,076
Annual Return 2001 rr_AnnualReturn2001 5.22%
Annual Return 2002 rr_AnnualReturn2002 2.45%
Annual Return 2003 rr_AnnualReturn2003 2.14%
Annual Return 2004 rr_AnnualReturn2004 1.34%
Annual Return 2005 rr_AnnualReturn2005 2.34%
Annual Return 2006 rr_AnnualReturn2006 4.22%
Annual Return 2007 rr_AnnualReturn2007 4.18%
Annual Return 2008 rr_AnnualReturn2008 (1.65%)
Annual Return 2009 rr_AnnualReturn2009 9.05%
Annual Return 2010 rr_AnnualReturn2010 1.58%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.86%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.86%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 3.52% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 3.52%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.03% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.03%)
1 Year rr_AverageAnnualReturnYear01 (0.71%)
5 Years rr_AverageAnnualReturnYear05 2.95%
10 Years rr_AverageAnnualReturnYear10 2.82%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.06%) [86]
5 Years rr_AverageAnnualReturnYear05 1.71% [86]
10 Years rr_AverageAnnualReturnYear10 1.70% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.41%) [86]
5 Years rr_AverageAnnualReturnYear05 1.81% [86]
10 Years rr_AverageAnnualReturnYear10 1.75% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 648
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 759
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 992
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,531
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 148
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 459
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 792
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,531
1 Year rr_AverageAnnualReturnYear01 (4.04%)
5 Years rr_AverageAnnualReturnYear05 2.32%
10 Years rr_AverageAnnualReturnYear10 2.52%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.55%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 202
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 552
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,225
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 102
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 318
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 552
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,225
1 Year rr_AverageAnnualReturnYear01 0.28%
5 Years rr_AverageAnnualReturnYear05 3.11%
10 Years rr_AverageAnnualReturnYear10 2.74%
(PIMCO Bond Funds - Retail) | (PIMCO Short-Term Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,166
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 97
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 303
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 525
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,166
1 Year rr_AverageAnnualReturnYear01 1.33%
5 Years rr_AverageAnnualReturnYear05 3.16%
10 Years rr_AverageAnnualReturnYear10 2.82%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 430% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 430.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after seven years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 30, 2011 was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund invests primarily in investment-grade debt securities, but may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by Pacific Investment Management Company LLC ("PIMCO") to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may invest up to 10% of its total assets in preferred stock, convertible securities and other equity-related securities.

The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity or equity-related securities may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class R shares (December 31, 2002), performance information shown in the table for Class R shares is based on the performance of the Fund's Institutional Class sha res, adjusted to reflect the actual distribution and/or service (12b-1) fees and other expenses paid by Class R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Lipper Intermediate Investment Grade Debt Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 65% of their assets in investment-grade debt issues (rated in the top four grades) with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.78%. For the periods shown in the bar chart, the highest quarterly return was 6.37% in the Q3 2001, and the lowest quarterly return was -2.30% in the Q2 2004.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.84%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Lipper Intermediate Investment Grade Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.77%
5 Years rr_AverageAnnualReturnYear05 5.23%
10 Years rr_AverageAnnualReturnYear10 5.36%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 459
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 636
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 829
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,385
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 459
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 636
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 829
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,385
Annual Return 2001 rr_AnnualReturn2001 8.99%
Annual Return 2002 rr_AnnualReturn2002 9.69%
Annual Return 2003 rr_AnnualReturn2003 5.07%
Annual Return 2004 rr_AnnualReturn2004 4.65%
Annual Return 2005 rr_AnnualReturn2005 2.41%
Annual Return 2006 rr_AnnualReturn2006 3.51%
Annual Return 2007 rr_AnnualReturn2007 8.57%
Annual Return 2008 rr_AnnualReturn2008 4.32%
Annual Return 2009 rr_AnnualReturn2009 13.33%
Annual Return 2010 rr_AnnualReturn2010 8.36%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.78%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.78%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 6.37% in the Q3 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.37%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.30% in the Q2 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.30%)
1 Year rr_AverageAnnualReturnYear01 4.29%
5 Years rr_AverageAnnualReturnYear05 6.74%
10 Years rr_AverageAnnualReturnYear10 6.43%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.91% [86]
5 Years rr_AverageAnnualReturnYear05 4.45% [86]
10 Years rr_AverageAnnualReturnYear10 4.25% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.08% [86]
5 Years rr_AverageAnnualReturnYear05 4.45% [86]
10 Years rr_AverageAnnualReturnYear10 4.23% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 513
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 705
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 921
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,428
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 163
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 505
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 871
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,428
1 Year rr_AverageAnnualReturnYear01 4.05%
5 Years rr_AverageAnnualReturnYear05 6.69%
10 Years rr_AverageAnnualReturnYear10 6.28%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 263
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 505
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 871
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,900
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 163
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 505
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 871
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,900
1 Year rr_AverageAnnualReturnYear01 6.55%
5 Years rr_AverageAnnualReturnYear05 6.76%
10 Years rr_AverageAnnualReturnYear10 6.04%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 112
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 350
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 606
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,340
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 112
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 350
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 606
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,340
1 Year rr_AverageAnnualReturnYear01 8.09%
5 Years rr_AverageAnnualReturnYear05 7.30%
10 Years rr_AverageAnnualReturnYear10 6.57%
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund IV)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets in a diversified portfolio of Fixed Income Instruments of varying maturities. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within one and a half years (plus or minus) of the duration of the Barclays Capital U.S. Aggregate Index, which as of June 31, 2011 was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The Fund may invest without limitation in the core sectors of the bond market including government bonds, mortgage bonds and corporate bonds and will generally seek to maintain positive exposure to these sectors. The Fund may invest only in investment grade securities of issuers that are rated at least Baa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers, although the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 5% of its total assets. The Fund may invest up to 10% of its total assets in securit ies and instruments that are economically tied to emerging market countries.

The Fund may invest in certain derivative instruments, such as futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales, including short exposures obtained using derivative instruments, up to 10% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The "total return" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest up to 10% of its total assets in preferred stock, convertible securities and other equity-related securities, although the Fund will not invest in common stock.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity or equity-related securities may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity or equity-related securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Leveraging Risk: the risk that certain transactions of the Fund, such as the use of when-issued, delayed delivery or forward commitment transactions, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance of the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund IV) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.86%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 459
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 636
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 459
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 636
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund IV) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 263
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 505
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 163
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 505
(PIMCO Bond Funds - Retail) | (PIMCO Total Return Fund IV) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.01% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.11%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.01%) [61]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.10%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 112
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 350
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 112
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 350
(PIMCO Bond Funds - Retail) | (PIMCO Treasury Money Market Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum current income, consistent with preservation of capital and daily liquidity.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

[1]
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a portfolio of U.S. Treasury securities. The Fund may invest in the following: U.S. Treasury bills, notes, trust receipts and other direct obligations of the U.S. Treasury and repurchase agreements secured by such obligations. The Fund may only invest in U.S. dollar-denominated securities that mature in 397 days or fewer from the date of purchase. The dollar-weighted average portfolio maturity of the Fund may not exceed 60 days and the dollar-weighted average life to maturity of the Fund may not exceed 120 days. The Fund attempts to maintain a stable net asset value of $1.00 per share, although there is no assurance that it will be successful in doing so.

The Fund's investments will comply with applicable rules governing the quality, maturity and diversification of securities held by money market funds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money by investing in the Fund
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Returns Table is included.

The Fund's benchmark index is the Citigroup 3-Month Treasury Bill Index. The Citigroup 3-Month Treasury Bill Index is an unmanaged index representing monthly return equivalents of yield averages of the last 3 month Treasury Bill issues.

Once the Fund commences operations, performance for the Fund will be updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/ QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Bond Funds - Retail) | (PIMCO Treasury Money Market Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
(PIMCO Bond Funds - Retail) | (PIMCO Treasury Money Market Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
(PIMCO Bond Funds - Retail) | (PIMCO Treasury Money Market Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.18%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.03% [5]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.46%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.03%) [68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 0.43% [40]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 44
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 44
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum long-term return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,240% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1240.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund intends to utilize various investment strategies in a broad array of fixed income sectors to achieve its investment objective. The Fund will not be constrained by management against an index. The average portfolio duration of this Fund will normally vary from (negative) 3 years to positive 8 years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, th e more sensitive it will be to changes in interest rates.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 40% of its total assets in securities rated below Baa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest without limitation in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. In addition, the Fund may invest up to 50% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 35% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mor gage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3 Month USD LIBOR Index (Resets Quarterly). LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market, resetting quarterly. Prior to August 1, 2009, the Fund's benchmark index was the same 3 month LIBOR Index as described, but resetting monthly. The Lipper General Bond Funds Average is a total return performance average of funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 0.87%. For the periods shown in the bar chart, the highest quarterly return was 5.41% in the Q2 2009, and the lowest quarterly return was -1.14% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/30/2008)
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Lipper General Bond Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.62%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | 3 Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.15%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.38% [19]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 510
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 796
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,102
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,970
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 510
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 796
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,102
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,970
Annual Return 2009 rr_AnnualReturn2009 12.64%
Annual Return 2010 rr_AnnualReturn2010 5.21%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 0.87%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.87%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 5.41% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.41%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.14% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.14%)
1 Year rr_AverageAnnualReturnYear01 1.27%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.18%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.46% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.97% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.83% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.57% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.13% [19]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 316
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 667
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,144
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,462
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 216
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 667
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,144
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,462
1 Year rr_AverageAnnualReturnYear01 3.43%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.02%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Bond Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.63% [19]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 166
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 514
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 887
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,933
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 166
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 514
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 887
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,933
1 Year rr_AverageAnnualReturnYear01 4.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.55%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum long-term after-tax return, consistent with preservation of capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 401% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 401.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 127 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets in a diversified portfolio of Fixed Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund intends to utilize various investment strategies in a broad array of fixed income sectors to achieve its investment objective. The Fund will not be constrained by management against an index. The average portfolio duration of this Fund will normally vary from (negative) 3 years to positive 10 years based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, t he more sensitive it will be to changes in interest rates.

The Fund seeks to invest under normal circumstances at least 50% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"). Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities. The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest more than 25% of its total assets in bonds of issuers in California and New York. To the extent that the Fund concentrates its investments in California or New York, it will be subject to California or New York State-Specific Risk. The Fund may also invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 2 5% or more of its total assets in industrial development bonds.

The Fund may invest in both investment-grade securities and high yield securities ("junk bonds") subject to a maximum of 40% of its total assets in securities rated below Baa by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may also invest up to 50% of its total assets in securities denominated in foreign currencies. The Fund may invest up to 50% of its total assets in securities of foreign issuers. The Fund may invest up to 50% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 35% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks .

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). In addition, the Fund may also invest in securities issued by entities, such as trusts, whose underlying assets are Municipal Bonds, including, without limitation, residual interest bonds.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

California State-Specific Risk: the risk that by concentrating its investments in California Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal

New York State-Specific Risk: the risk that by concentrating its investments in New York Municipal Bonds, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. It is possible to lose money on an investment in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and Class C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3 Month USD LIBOR After Tax. LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper General Bond Funds Average is a total return performance average of the funds tracked by Lipper, Inc. that do not have any quality or maturity restrictions. These funds intend to keep the bulk of their assets in corporate and government debt issues.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.44%. For the periods shown in the bar chart, the highest quarterly return was 2.25% in the Q3 2010, and the lowest quarterly return was -1.37% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (1/30/2009)
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | 3 Month USD LIBOR After Tax (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.22%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.39%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | Lipper General Bond Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.18%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.18% [20]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 491
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 736
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,000
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,753
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 491
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 736
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,000
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,753
Annual Return 2010 rr_AnnualReturn2010 1.37%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.44%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.44%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.25% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.25%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.37% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.37%)
1 Year rr_AverageAnnualReturnYear01 (2.40%)
Fund Inception** rr_AverageAnnualReturnSinceInception 1.82%
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.72%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.31% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.45%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.32% [86]
(PIMCO Bond Funds - Retail) | (PIMCO Unconstrained Tax Managed Bond Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.85%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.08% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.93% [20]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 296
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 606
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,042
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,254
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 196
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 606
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,042
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,254
1 Year rr_AverageAnnualReturnYear01 (0.40%)
Fund Inception** rr_AverageAnnualReturnSinceInception 3.09%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in Institutional Class or, as applicable, Class M shares of any funds of the Trust, except the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset, PIMCO RealRetirement® Funds, as well as in funds of PIMCO Equity Series, an affiliated open-end investment company ("Underlying PIMCO Funds"). The Fund invests its assets in shares of the Underlying PIMCO Funds and does not invest directly in stocks or bonds of other issuers. Research Affiliates, LLC, the Fund's asset allocation sub-adviser, determines how the Fund allocates and reallocates its assets among the Underlying PIMCO Funds. In doing so, the asset allocation sub-adviser seeks concurrent exposure to a broad spectrum of asset classes.

The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund's investment in any particular UnderlyingPIMCO Fund normally will not exceed 50% of its total assets. The Portfolio's investment in the PIMCO StocksPLUS® TR Short Strategy Fund normally will not exceed 20% of its total assets. The Fund's combined investments in the PIMCO Fundamental IndexPLUS® TR, PIMCO Small Cap StocksPLUS® TR, PIMCO StocksPLUS®, PIMCO StocksPLUS® Long Duration and PIMCO StocksPLUS® Total Return Funds ("U.S. Stock Funds") normally will not exceed 50% of its total assets. The Fund's combined investments in the PIMCO International StocksPLUS® TR Strategy (Unhedged), PIMCO EqS Emerging Markets and PIMCO EqS PathfinderTM Funds ("Non-U.S. Stock Funds") normally will not exceed 33 1/3% of its tota l assets. The Fund's combined investments in the U.S. Stock Funds and Non-U.S. Stock Funds (less any investment in the PIMCO StocksPLUS® TR Short Strategy Fund) normally will not exceed 66 2/3% of its total assets. In addition, the Fund's combined investments in the PIMCO CommodityRealReturn® Strategy, PIMCO Real Return, PIMCO Real Return Asset and PIMCO RealEstateRealReturn Strategy Funds normally will not exceed 75% of its total assets.

The Fund's assets are not allocated according to a predetermined blend of shares of the Underlying PIMCO Funds. Instead, when making allocation decisions among the Underlying PIMCO Funds, the Fund's asset allocation sub-adviser considers various quantitative and qualitative data relating to the U.S. and foreign economies and securities markets. Such data includes projected growth trends in the U.S. and foreign economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity and fixed income markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances and labor information. The Fund's asset allocation sub -adviser has the flexibility to reallocate the Fund's assets among any or all of the asset class exposures represented by the Underlying PIMCO Funds based on its ongoing analyses of the equity, fixed income and commodity markets. While these analyses are performed daily, material shifts in asset class exposures typically take place over longer periods of time. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may use leverage by borrowing for investment purposes. The Fund will borrow only from banks, and only when the value of the Fund's assets, minus its liabilities other than borrowings, equals or exceeds 300% of the Fund's total borrowings, including the proposed borrowing. If at any time this 300% coverage requirement is not met, the Fund will, within three business days, decrease its borrowings to the extent required. Borrowing requires the payment of interest and other loan costs. To make such payments, the Fund may be forced to sell portfolio securities when it is not otherwise advantageous to do so. At times when the Fund's borrowings are substantial, the interest expense to the Fund may result in the Fund having little or no investment income. The use of leverage by borrowing creates the potential for greater gains to shareholders of the Fund during favorable market conditions and the risk of magnified losse s during adverse market conditions. In addition, the Underlying PIMCO Funds may engage in certain transactions that give rise to a form of leverage.

The Fund is a "fund of funds," which is a term used to describe mutual funds that pursue their investment objective by investing in other mutual funds. In addition to investing in the underlying PIMCO Funds, at the discretion of Pacific Investment Management Company LLC ("PIMCO") and without shareholder approval, the Fund may invest in additional underlying PIMCO Funds created in the future.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Underlying PIMCO Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Underlying PIMCO Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Underlying PIMCO Funds to achieve their investment objectives

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

The principal risks of investing in the Underlying PIMCO Funds, and consequently the Fund, which could adversely affect its net asset value, yield and total return, are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Standard & Poor's 500 Composite Stock Price Index ("S&P 500"). The Fund's secondary benchmark is a benchmark created by adding 6.5% to the annual percentage change in the Consumer Price Index ("CPI") (specifically, the CPI for All Urban Consumers). The Fund believes that this secondary benchmark reflects the Fund's long-term investment strategy more accurately than the S&P 500.

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and Class C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A and Class C shar es (July 29, 2005), performance information shown in the bar chart and table for these classes is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees, administrative fees and other expenses paid by Class A and Class C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The CPI + 650 Basis Points benchmark is created by adding 6.5% to the annual percentage change in the CPI. This index reflects non-seasonally adjusted returns. The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. There can be no guarantee that the CPI or other indexes will reflect the exact level of inflation at any given time. The Lipper Flexible Portfolio Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that allocate their investments across various asset classes, including domestic common stocks, bond and money market instruments with a focus on total return.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.33%. For the periods shown in the bar chart, the highest quarterly return was 11.72% in the Q2 2009, and the lowest quarterly return was -6.77% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/31/2003)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Consumer Price Index + 650 Basis Points (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.28%
5 Years rr_AverageAnnualReturnYear05 9.01%
Fund Inception** rr_AverageAnnualReturnSinceInception 9.23%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Lipper Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.03%
5 Years rr_AverageAnnualReturnYear05 3.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.85%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.63%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [7]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.87% [22],[23],[24]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 729
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,105
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,505
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,620
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 729
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,105
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,505
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,620
Annual Return 2004 rr_AnnualReturn2004 11.17%
Annual Return 2005 rr_AnnualReturn2005 6.12%
Annual Return 2006 rr_AnnualReturn2006 2.43%
Annual Return 2007 rr_AnnualReturn2007 9.37%
Annual Return 2008 rr_AnnualReturn2008 (7.52%)
Annual Return 2009 rr_AnnualReturn2009 18.65%
Annual Return 2010 rr_AnnualReturn2010 9.94%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.33%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.33%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.72% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.77% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.77%)
1 Year rr_AverageAnnualReturnYear01 5.82%
5 Years rr_AverageAnnualReturnYear05 5.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.82%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.49% [86]
5 Years rr_AverageAnnualReturnYear05 3.15% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.48% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.82% [86]
5 Years rr_AverageAnnualReturnYear05 3.29% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.47% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset All Authority Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.31% [6]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.86% [7]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.62% [22],[23],[24]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 365
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 814
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,954
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 265
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 814
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,390
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,954
1 Year rr_AverageAnnualReturnYear01 8.24%
5 Years rr_AverageAnnualReturnYear05 5.42%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.59%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark index consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1,051% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1051.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark index by investing under normal circumstances in non-U.S. equity derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund's benchmark index is the Morgan Stanley Capital International Europe, Australasia and Far East ("EAFE") Net Dividend Index, hedged to U.S. dollars (the "Index"). The Fund normally uses equity derivatives instead of stocks to attempt to equal or exceed the daily performance of the Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of equity derivatives should closely track changes in the value of underlying securities or indices. However, derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security's price to changes in interest rates. The Barclays Capital U.S. Aggregate Index rep resents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Index is an unmanaged index of issuers in countries of Europe, Australia and the Far East represented in U.S. dollars on a hedged basis. The Fund seeks to remain invested in equity derivatives and/or stocks even when the Index is declining. The Fund may invest in non-U.S. equities or non-U.S. equity derivatives that do not comprise the Index.

The Fund does not normally invest directly in stocks. However, when equity derivatives appear to be overvalued, the Fund may invest some or all of its assets in stocks. The Fund also may invest in exchange traded funds. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's, or equivalently rated by S&P or Fitch, or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. With respect to the Fund's fixed i ncome investments, the Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of stocks comprising the Index. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

MSCI EAFE Net Dividend Hedged USD Index is an unmanaged index of issuers in countries of Europe, Australia, and the Far East represented in U.S. Dollars on a hedged basis. Lipper International Multi-Cap Core Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in a variety of market capitalization ranges without concentrating 75% of their equity assets in any one market capitalization range over an extended period of time and typically have 25% to 75% of their assets invested in companies strictly outside of the U.S. with market capitalizations (on a three-year weighted basis) greater than the 250th-largest company in the S&P/Citigroup World ex-U.S. Broad Market Index. The Fund began operations 10/30/03. Index comparisons began on 10/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.54%. For the periods shown in the bar chart, the highest quarterly return was 27.74% in the Q2 2009, and the lowest quarterly return was -15.54% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2003)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | MSCI EAFE Net Dividend Hedged USD Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.60%
5 Years rr_AverageAnnualReturnYear05 0.02%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.93%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Lipper International Multi-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.84%
5 Years rr_AverageAnnualReturnYear05 3.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.39%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.17% [23],[26]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 490
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 733
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 995
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,742
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 490
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 733
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 995
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,742
Annual Return 2004 rr_AnnualReturn2004 13.59%
Annual Return 2005 rr_AnnualReturn2005 26.38%
Annual Return 2006 rr_AnnualReturn2006 17.35%
Annual Return 2007 rr_AnnualReturn2007 5.06%
Annual Return 2008 rr_AnnualReturn2008 (40.57%)
Annual Return 2009 rr_AnnualReturn2009 46.32%
Annual Return 2010 rr_AnnualReturn2010 14.98%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.54%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.54%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 27.74% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 27.74%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -15.54% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.54%)
1 Year rr_AverageAnnualReturnYear01 8.65%
5 Years rr_AverageAnnualReturnYear05 3.10%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.17%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.77%) [86]
5 Years rr_AverageAnnualReturnYear05 (1.48%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.57% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.46% [86]
5 Years rr_AverageAnnualReturnYear05 0.11% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.43% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.92% [23],[26]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 695
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 903
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,237
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,957
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 195
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 603
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,037
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,957
1 Year rr_AverageAnnualReturnYear01 10.18%
5 Years rr_AverageAnnualReturnYear05 3.31%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.24%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (U.S. Dollar-Hedged)) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.92% [23],[26]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 295
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 603
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,037
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,243
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 195
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 603
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,037
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,243
1 Year rr_AverageAnnualReturnYear01 13.40%
5 Years rr_AverageAnnualReturnYear05 3.51%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.26%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged))
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark index consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 427% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 427.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark index by investing under normal circumstances in non-U.S. equity derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund's benchmark index is the Morgan Stanley Capital International Europe Australasia Far East ("EAFE") Net Dividend Index (the "Index"). The Fund normally uses equity derivatives instead of stocks to attempt to equal or exceed the daily performance of the Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of equity derivatives should closely track changes in the value of underlying securities or indices. However, derivatives may be purch ased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC registered, taxable and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis.

The Index is an unmanaged index of issuers in countries of Europe, Australia and the Far East represented in U.S. dollars on an unhedged basis. The Fund seeks to remain invested in equity derivatives and/or stocks even when the Index is declining. The Fund may invest in non-U.S. equities or non-U.S. equity derivatives that do not comprise the Index.

The Fund does not normally invest directly in stocks. However, when equity derivatives appear to be overvalued, the Fund may invest some or all of its assets in stocks. The Fund also may invest in exchange traded funds. The Fund's equity exposure will not be hedged into U.S. dollars. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and instr uments that are economically tied to emerging market countries. With respect to the Fund's fixed income investments, the Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. With respect to the Fund's fixed income investments, the Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of stocks comprising the Index. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The MSCI EAFE Net Dividend Index (USD Unhedged) is an unmanaged index of issuers in countries of Europe, Australia, and the Far East represented in U.S. Dollars on a unhedged basis. The Lipper International Multi-Cap Core Funds Average is a total return performance average of funds tracked by Lipper, Inc. that invest in a variety of market capitalization ranges without concentrating 75% of their equity assets in any one market capitalization range over an extended period of time and typically have 25% to 75% of their assets invested in companies strictly outside of the U.S. with market capitalizations (on a three-year weighted basis) greater than the 250th-largest company in the S&P/Citigroup World ex-U.S. Broad Market Index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 6.81%. For the periods shown in the bar chart, the highest quarterly return was 35.67% in the Q2 2009, and the lowest quarterly return was -23.03% in the Q3 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (11/30/2006)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | MSCI EAFE Net Dividend Index (USD Unhedged) (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.75%
Fund Inception** rr_AverageAnnualReturnSinceInception (1.97%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Lipper International Multi-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.84%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.79%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.05% [30]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 478
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 697
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 933
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,609
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 478
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 697
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 933
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,609
Annual Return 2007 rr_AnnualReturn2007 13.04%
Annual Return 2008 rr_AnnualReturn2008 (42.86%)
Annual Return 2009 rr_AnnualReturn2009 42.06%
Annual Return 2010 rr_AnnualReturn2010 15.95%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 6.81%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.81%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 35.67% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.67%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -23.03% in the Q3 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.03%)
1 Year rr_AverageAnnualReturnYear01 11.56%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.02%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.26% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (3.26%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.46% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.61%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO International StocksPLUS TR Strategy Fund (Unhedged)) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.80% [30]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 283
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 566
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 975
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,116
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 183
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 566
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 975
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,116
1 Year rr_AverageAnnualReturnYear01 14.05%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.17%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide consistent real (inflation-adjusted) distributions through its maturity date in 2019.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 193% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 193.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 90% of its net assets in inflation-indexed bonds issued by the U.S. Treasury. The Fund may also invest in the following: U.S. Treasury bills, notes, bonds, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government and futures contracts on U.S. Treasury securities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for all Urban Consumers before seasonal adjustment (calculated by the Bureau of Labor Statistics) ("CPI") as the inflation measure for U.S. Treasury Inflation-Protected Securities ("TIPS"). Upon maturity, TIPS return the greater of the original principal or the original principal plus any inflation adj ustments since the bond was issued.

The Fund will invest in short-, intermediate-and long-term inflation-indexed bonds in a "laddered" investment strategy to seek to provide regular monthly distributions adjusted for inflation through the Fund's maturity date in 2019. This laddered structure is expected to result in a portion of the inflation-indexed bonds held by the Fund maturing each year. The laddered structure enables the Fund generally to hold a portion of the inflation-indexed bonds until maturity in order to reduce the long-term impact of changing real interest rates. The portfolio manager will determine the portion of the Fund's inflation-indexed bonds that mature in any given year based on what will best provide the monthly distributions (inflation-adjusted) to shareholders.

The Fund's distribution strategy is designed to provide monthly distributions to Fund shareholders such that all assets of the Fund will be fully distributed to the Fund's shareholders by the Fund's maturity date in 2019. Upon maturity, the Fund is expected to have distributed all of its assets to Fund shareholders and will liquidate by distributing the final monthly distribution. A monthly distribution will primarily consist of the income received from the Fund's portfolio securities and may also include principal from inflation-indexed bonds that have recently matured. The monthly distribution rate will be calculated at the Fund's inception based on the portfolio manager's estimate of the monthly distribution amount that will best allow for the Fund's assets to be fully distributed by the final maturity date of the Fund. This monthly distribution amount will then be adjusted for inflation according to changes in the CP I. During periods of rising inflation the amount of the monthly distribution is expected to increase and during periods of deflation the amount of the monthly distribution is expected to decrease. These distributions are not guaranteed.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Distribution Adjustment Risk: the risk that the Fund's calculated monthly distribution amount may be adjusted higher or lower for reasons other than the inflation adjustment described in the "Fund Distributions" section of this prospectus. The purpose of the adjustments is to enable the Fund to better provide regular monthly distributions through the Fund's final maturity date; however, distributions may be adjusted for different reasons including gains or losses from buying and selling securities that can result from shareholder activity, the value of securities at maturity, monthly distributions, and/or portfolio management decisions. If deflation causes the inflation-adjusted principal of a TIPS issue held to maturity to be lower than its original principal value, the Fund would benefit by receiving the greater original principal value. As a result, the corresponding monthly distribution may be adjusted upward to account for the difference between the lower value and the original principal value guaranteed at maturity

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital US TIPS Real Income 2019 Index. The index is designed to track the performance of a US TIPS based investment solution that provides investors with an explicit hedge against inflation by offering a stream of constant real cash flows until October 31, 2019. The Lipper Retirement Income Funds Average is a total return performance average of funds tracked by Lipper Inc, that are designed to combine professional asset management with professionally managed withdrawals to assist investors in retirement. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index.The Fund began operations on 10/30/09. Index comparisons began on 10/31/09.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.36%. For the periods shown in the bar chart, the highest quarterly return was 2.33% in the Q2 2010, and the lowest quarterly return was -0.06% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Barclays Capital US TIPS Real Income 2019 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.84%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Lipper Retirement Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.75%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.86%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 453
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 618
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 797
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,316
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 453
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 618
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 797
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,316
Annual Return 2010 rr_AnnualReturn2010 4.80%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.36%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.36%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 2.33% in the Q2 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.33%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.06% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.06%)
1 Year rr_AverageAnnualReturnYear01 0.83%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.41%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.80%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.78%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.51% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.59%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2019 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 231
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 409
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 708
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,556
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 131
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 409
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 708
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,556
1 Year rr_AverageAnnualReturnYear01 3.48%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.33%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide consistent real (inflation-adjusted) distributions through its maturity date in 2029.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 262% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 262.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 90% of its net assets in inflation-indexed bonds issued by the U.S. Treasury. The Fund may also invest in the following: U.S. Treasury bills, notes, bonds, and other obligations issued by, or guaranteed as to principal and interest by, the U.S. government and futures contracts on U.S. Treasury securities. Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for all Urban Consumers before seasonal adjustment (calculated by the Bureau of Labor Statistics) ("CPI") as the inflation measure for U.S. Treasury Inflation-Protected Securities ("TIPS"). Upon maturity, TIPS return the greater of the original principal or the original principal plus any inflation adj ustments since the bond was issued.

The Fund will invest in short-, intermediate- and long-term inflation-indexed bonds in a "laddered" investment strategy to seek to provide regular monthly distributions adjusted for inflation through the Fund's maturity date in 2029. This laddered structure is expected to result in a portion of the inflation-indexed bonds held by the Fund maturing each year. The laddered structure enables the Fund generally to hold a portion of the inflation-indexed bonds until maturity in order to reduce the long-term impact of changing real interest rates. The portfolio manager will determine the portion of the Fund's inflation-indexed bonds that mature in any given year based on what will best provide the monthly distributions (inflation-adjusted) to shareholders.

The Fund's distribution strategy is designed to provide monthly distributions to Fund shareholders such that all assets of the Fund will be fully distributed to the Fund's shareholders by the Fund's maturity date in 2029. Upon maturity, the Fund is expected to have distributed all of its assets to Fund shareholders and will liquidate by distributing the final monthly distribution. A monthly distribution will primarily consist of the income received from the Fund's portfolio securities and may also include principal from inflation-indexed bonds that have recently matured. The monthly distribution rate will be calculated at the Fund's inception based on the portfolio manager's estimate of the monthly distribution amount that will best allow for the Fund's assets to be fully distributed by the final maturity date of the Fund. This monthly distribution amount will then be adjusted for inflation according to changes in the CP I. During periods of rising inflation the amount of the monthly distribution is expected to increase and during periods of deflation the amount of the monthly distribution is expected to decrease. These distributions are not guaranteed.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Distribution Adjustment Risk: the risk that the Fund's calculated monthly distribution amount may be adjusted higher or lower for reasons other than the inflation adjustment described in the "Fund Distributions" section of this prospectus. The purpose of the adjustments is to enable the Fund to better provide regular monthly distributions through the Fund's final maturity date; however, distributions may be adjusted for different reasons including gains or losses from buying and selling securities that can result from shareholder activity, the value of securities at maturity, monthly distributions, and/or portfolio management decisions. If deflation causes the inflation-adjusted principal of a TIPS issue held to maturity to be lower than its original principal value, the Fund would benefit by receiving the greater original principal value. As a result, the corresponding monthly distribution may be adjusted upward to account for the difference between the lower value and the original principal value guaranteed at maturity

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital U.S. TIPS Real Income 2029 Index. The index is designed to track the performance of a US TIPS based investment solution that provides investors with an explicit hedge against inflation by offering a stream of constant real cash flows until October 31, 2029. The Lipper Retirement Income Funds Average is a total return performance average of funds tracked by Lipper Inc, that are designed to combine professional asset management with professionally managed withdrawals to assist investors in retirement. It does not reflect deductions for fees, expenses or taxes. It is not possible to invest directly in an unmanaged index. The Fund began operations on 10/30/09. Index comparisons began on 10/31/09.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.30%. For the periods shown in the bar chart, the highest quarterly return was 4.75% in the Q2 2010, and the lowest quarterly return was -1.31% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Barclays Capital US TIPS Real Income 2029 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.93%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.26%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Lipper Retirement Income Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.75%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.86%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 453
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 618
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 797
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,316
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 453
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 618
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 797
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,316
Annual Return 2010 rr_AnnualReturn2010 6.99%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.30%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.30%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 4.75% in the Q2 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.75%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.31% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.31%)
1 Year rr_AverageAnnualReturnYear01 2.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.06%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.05% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.33% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.91% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.61% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Real Income 2029 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 231
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 409
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 708
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,556
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 131
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 409
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 708
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,556
1 Year rr_AverageAnnualReturnYear01 5.31%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.87%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 344% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 344.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in real estate-linked derivative instruments backed by a portfolio of inflation-indexed securities and other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in real estate-linked derivative instruments, including swap agreements, options, futures, options on futures and structured notes. The value of real estate-linked derivative instruments may be affected by risks similar to those associated with direct ownership of real estate. Real estate values can fluctuate due to losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, property tax rates, regulatory limitations on rents, zoning laws and operating expenses. The Fund may also invest directly in real estate investment trusts ( "REIT") and in common and preferred stocks as well as convertible securities of issuers in real estate-related industries. The Fund may also invest in exchange traded funds.

The Fund typically will seek to gain exposure to the real estate market by investing in REIT total return swap agreements. In a typical REIT swap agreement, the Fund will receive the price appreciation (or depreciation) of a REIT index or portion of an index, from the counterparty to the swap agreement in exchange for paying the counterparty an agreed-upon fee. Investments in REIT swap agreements may be susceptible to additional risks, similar to those associated with direct investment in REITs, including changes in the value of underlying properties, defaults by borrowers or tenants, revisions to the Internal Revenue Code of 1986, as amended (the "Code"), changes in interest rates and poor performance by those managing the REITs. Assets not invested in real estate-linked derivative instruments may be invested in inflation-indexed securities and other Fixed Income Instruments, including derivative Fixed Income Instrument s. In addition, Index derivatives may be purchased with a fraction of the assets that would be needed to purchase the securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The average portfolio duration of the fixed income portion of this Fund will vary based on Pacific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buybacks or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks. The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward co mmitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both real estate derivatives and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones U.S. Select Real Estate Investment Trust (REIT) Total Return Index is a subset of the Dow Jones Americas Select Real Estate Securities Index (RESI) and includes only REITs and REIT-like securities. The objective of the index is to measure the performance of publicly traded real estate securities. The indexes are designed to serve as proxies for direct real estate investment, in part by excluding companies whose performance may be driven by factors other than the value of real estate. The Lipper Real Estate Funds Average is a total return performance average of funds tracked by Lipper, Inc, that invests at least 65% of its portfolio in equity securities of domestic and foreign companies engaged in the real estate industry. The Fund began operations on 10/30/03. Index comparisons began on 10/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 17.24%. For the periods shown in the bar chart, the highest quarterly return was 42.35% in the Q3 2009, and the lowest quarterly return was -46.32% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2003)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Lipper Real Estate Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 27.38%
5 Years rr_AverageAnnualReturnYear05 2.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.35%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Dow Jones U.S. Select REIT Total Return Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 28.07%
5 Years rr_AverageAnnualReturnYear05 2.27%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.78%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.16% [27]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 662
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 898
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,153
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,881
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 662
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 898
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,153
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,881
Annual Return 2004 rr_AnnualReturn2004 41.58%
Annual Return 2005 rr_AnnualReturn2005 12.12%
Annual Return 2006 rr_AnnualReturn2006 26.80%
Annual Return 2007 rr_AnnualReturn2007 (12.42%)
Annual Return 2008 rr_AnnualReturn2008 (47.29%)
Annual Return 2009 rr_AnnualReturn2009 53.42%
Annual Return 2010 rr_AnnualReturn2010 38.86%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 17.24%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 17.24%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 42.35% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 42.35%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -46.32% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (46.32%)
1 Year rr_AverageAnnualReturnYear01 31.23%
5 Years rr_AverageAnnualReturnYear05 3.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.53%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.56% [86]
5 Years rr_AverageAnnualReturnYear05 (2.65%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.67% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.15% [86]
5 Years rr_AverageAnnualReturnYear05 (0.54%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 4.51% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.91% [27]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 694
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 900
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,232
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,946
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 194
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 600
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,032
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,946
1 Year rr_AverageAnnualReturnYear01 33.12%
5 Years rr_AverageAnnualReturnYear05 3.51%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.54%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealEstateRealReturn Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.89%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.91% [27]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 294
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 600
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,032
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,233
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 194
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 600
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,032
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,233
1 Year rr_AverageAnnualReturnYear01 36.94%
5 Years rr_AverageAnnualReturnYear05 3.69%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.54%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 0% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 0.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2010 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2010, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the 1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes , with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2010 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2010 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon not to exceed the year 2010.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.38%. For the periods shown in the bar chart, the highest quarterly return was 10.71% in the Q2 2009, and the lowest quarterly return was -1.42% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Lipper Mixed-Asset Target 2010 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.37%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Dow Jones Real Return(SM) 2010 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.40%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.62% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 671
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 928
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,204
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,989
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 671
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 928
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,204
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,989
Annual Return 2009 rr_AnnualReturn2009 22.57%
Annual Return 2010 rr_AnnualReturn2010 10.05%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.38%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.38%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 10.71% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.71%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -1.42% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.42%)
1 Year rr_AverageAnnualReturnYear01 4.05%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.26%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.54% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.76%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.60% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.28% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.37% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.01% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 304
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 630
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,083
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,338
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 204
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 630
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,083
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,338
1 Year rr_AverageAnnualReturnYear01 8.17%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.62%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2010 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.87% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.51% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 154
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 477
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 824
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,802
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 154
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 477
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 824
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,802
1 Year rr_AverageAnnualReturnYear01 9.79%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.10%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 1% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 1.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2020 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2020, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRet irement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is nondiversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement Fund targeting a later date represents a more aggressive choice. The glide path is designed as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2020 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2020 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2016, to December 31, 2020.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.01%. For the periods shown in the bar chart, the highest quarterly return was 13.12% in the Q2 2009, and the lowest quarterly return was -2.74% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Dow Jones Real Return(SM) 2020 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.25%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.01%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Lipper Mixed-Asset Target 2020 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.51%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 671
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 928
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,204
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,989
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 671
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 928
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,204
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,989
Annual Return 2009 rr_AnnualReturn2009 24.10%
Annual Return 2010 rr_AnnualReturn2010 9.73%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.01%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.01%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 13.12% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.12%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -2.74% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.74%)
1 Year rr_AverageAnnualReturnYear01 3.72%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.05%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.22% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.91%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.39% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.73%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36% [9]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.36% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.01% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 304
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 630
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,081
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,334
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 204
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 630
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,081
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,334
1 Year rr_AverageAnnualReturnYear01 7.90%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.42%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2020 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.36%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.86% [23],[32]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.35%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.51% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 154
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 477
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 824
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,802
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 154
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 477
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 824
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,802
1 Year rr_AverageAnnualReturnYear01 9.57%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.94%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 3% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 3.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2030 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2030, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRet irement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is nondiversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2030 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2030 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2026, to December 31, 2030.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.39%. For the periods shown in the bar chart, the highest quarterly return was 14.67% in the Q2 2009, and the lowest quarterly return was -4.39% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Lipper Mixed-Asset Target 2030 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.65%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.93%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Dow Jones Real Return(SM) 2030 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.38%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.94%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.67% [23],[33]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.31% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 676
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 942
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,229
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,042
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 676
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 942
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,229
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,042
Annual Return 2009 rr_AnnualReturn2009 26.87%
Annual Return 2010 rr_AnnualReturn2010 10.21%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.39%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.39%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 14.67% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 14.67%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.39% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.39%)
1 Year rr_AverageAnnualReturnYear01 4.19%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.06%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.38% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (3.00%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.68% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.62%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.42% [23],[33]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.06% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 309
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 646
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,108
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,390
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 209
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 646
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,108
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,390
1 Year rr_AverageAnnualReturnYear01 8.39%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.42%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2030 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.37% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.92% [23],[33]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.36%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.56% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 159
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 493
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 850
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,856
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 159
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 493
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 850
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,856
1 Year rr_AverageAnnualReturnYear01 9.93%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.89%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 77% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 77.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances substantially all of its assets in Institutional Class or, as applicable, Class M shares of any funds of the Trust, except the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset, PIMCO RealRetirement® Funds, as well as in funds of PIMCO Equity Series, an affiliated open-end investment company ("Underlying PIMCO Funds"). Though it is anticipated that the Fund will not currently invest in the PIMCO StocksPLUS® TR Short Strategy Fund, the Portfolio may invest in this Underlying PIMCO Fund in the future, without shareholder approval, at the discretion of Pacific Investment Management Company LLC ("PIMCO"). The Fund invests its assets in shares of the Underlying PIMCO Funds and does not invest directly in stocks or bonds of other issuers. Research Affiliates, LLC, the Fund's asset allocation sub-adviser, determines how the Fund allocates and reallocates its assets among the Und erlying PIMCO Funds. In doing so, the asset allocation sub-adviser seeks concurrent exposure to a broad spectrum of asset classes.

The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund's investment in a particular Underlying PIMCO Fund normally will not exceed 50% of its total assets. The Fund's combined investments in the PIMCO Fundamental IndexPLUS® TR, PIMCO International StocksPLUS® TR Strategy (Unhedged), PIMCO Small Cap StocksPLUS® TR, PIMCO StocksPLUS®, PIMCO StocksPLUS® Long Duration, PIMCO StocksPLUS® Total Return, PIMCO EqS Emerging Markets and PIMCO EqS PathfinderTM Funds normally will not exceed 50% of its total assets. In addition, the Fund's combined investments in the PIMCO CommodityRealReturn Strategy®, PIMCO Real Return, PIMCO Real Return Asset and PIMCO RealEstateRealReturn Strategy Funds normally will not exceed 75% of its total assets. The Fund's assets are not allocated according to a predetermined blend of shares of the Underlying PIMCO Funds. Instead, when making allocation decisions among the Underlying PIMCO Funds, the Fund's asset allocation sub-adviser considers various quantitative and qualitative data relating to the U.S. and foreign economies and securities markets. Such data includes projected growth trends in the U.S. and foreign economies, forecasts for interest rates and the relationship between short-and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity and fixed income markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances and labor information. The Fund's asset allocation sub-adviser has the flexibility to reallocate the Fund's assets among any or all of the asset class exposures represented by the Underlying PIMCO Funds based on its ongoing analyses of the equity, fixed income and commodity markets. While these analyses are performed daily, material shifts in asset class exposures typically take place over longer periods of time. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund is a "fund of funds," which is a term used to describe mutual funds that pursue their investment objective by investing in other mutual funds. In addition to investing in the Underlying PIMCO Funds, at the discretion of PIMCO and without shareholder approval, the Fund may invest in additional PIMCO Funds created in the future.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Underlying PIMCO Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Underlying PIMCO Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Underlying PIMCO Funds to achieve their investment objectives

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

The principal risks of investing in the Underlying PIMCO Funds, and consequently the Fund, which could adversely affect its net asset value, yield and total return, are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the Barclays Capital U.S. TIPS 1-10 Year Index. The Fund's secondary benchmark is created by adding 5% to the annual percentage change in the Consumer Price Index ("CPI") (specifically, the CPI for All Urban Consumers). The Fund believes that this secondary benchmark reflects the Fund's long-term investment strategy more accurately than the Barclays Capital U.S. TIPS 1-10 Year Index.

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A, B and C shares (April 30, 2003) and the inception date of Class R shares (January 31, 2006), performance information shown in the bar chart and table for those classes is based on the performance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees, administrative fees and other expenses paid by Class A, B, C and R shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Barclays Capital U.S. TIPS: 1-10 Year Index is an unmanaged index market comprised of U.S. Treasury Inflation Protected securities having a maturity of at least 1 year and less than 10 years. The CPI + 500 Basis Points benchmark is created by adding 5% to the annual percentage change in the CPI. This index reflects non-seasonally adjusted returns. The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. There can be no guarantee that the CPI or other indexes will reflect the exact level of inflation at any given time. The Lipper Flexible Portfolio Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that allocate their investments across various asset classes, including domestic common stocks, bond and money market instruments with a focus on total return.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.53%. For the periods shown in the bar chart, the highest quarterly return was 12.43% in the Q2 2009, and the lowest quarterly return was -8.38% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/31/2002)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Consumer Price Index + 500 Basis Points (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.68%
5 Years rr_AverageAnnualReturnYear05 7.40%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.58%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Lipper Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.03%
5 Years rr_AverageAnnualReturnYear05 3.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.09%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Barclays Capital U.S. TIPS: 1-10 Year Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.22%
5 Years rr_AverageAnnualReturnYear05 5.41%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.78%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.475%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.465% [23],[25]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [62]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.405% [75]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 513
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 803
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,115
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,997
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 513
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 803
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,115
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,997
Annual Return 2003 rr_AnnualReturn2003 15.31%
Annual Return 2004 rr_AnnualReturn2004 11.13%
Annual Return 2005 rr_AnnualReturn2005 5.82%
Annual Return 2006 rr_AnnualReturn2006 4.69%
Annual Return 2007 rr_AnnualReturn2007 7.92%
Annual Return 2008 rr_AnnualReturn2008 (15.91%)
Annual Return 2009 rr_AnnualReturn2009 22.20%
Annual Return 2010 rr_AnnualReturn2010 13.06%
Year to Date Return, Label rr_YearToDateReturnLabel Year to date return, label
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.53%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 12.43% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.43%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -8.38% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.38%)
1 Year rr_AverageAnnualReturnYear01 8.82%
5 Years rr_AverageAnnualReturnYear05 4.79%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.01%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.01% [86]
5 Years rr_AverageAnnualReturnYear05 2.45% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.77% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.69% [86]
5 Years rr_AverageAnnualReturnYear05 2.68% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 5.60% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.475%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.215% [23],[25]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [62]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.155% [75]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 569
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 875
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,207
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,041
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 219
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 675
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,157
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,041
1 Year rr_AverageAnnualReturnYear01 8.72%
5 Years rr_AverageAnnualReturnYear05 4.71%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.73%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.475%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.215% [23],[25]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [62]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.155% [75]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 319
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 675
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,157
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,488
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 219
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 675
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,157
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,488
1 Year rr_AverageAnnualReturnYear01 11.22%
5 Years rr_AverageAnnualReturnYear05 4.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.69%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO All Asset Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.525%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.74% [8]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.765% [23],[25]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.06%) [62]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.705% [75]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 173
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 537
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 926
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,014
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 173
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 537
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 926
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,014
1 Year rr_AverageAnnualReturnYear01 12.75%
5 Years rr_AverageAnnualReturnYear05 5.28%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.19%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 7.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2040 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2040, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRet irement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is nondiversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2040 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2040 Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon from January 1, 2036, to December 31, 2040.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.97%. For the periods shown in the bar chart, the highest quarterly return was 20.91% in the Q2 2009, and the lowest quarterly return was -6.17% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Dow Jones Real Return(SM) 2040+ Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.38%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.80%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Lipper Mixed-Asset Target 2040 Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.39%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.68%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.77% [23],[34]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.38% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 683
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 963
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,264
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,116
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 683
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 963
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,264
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,116
Annual Return 2009 rr_AnnualReturn2009 35.15%
Annual Return 2010 rr_AnnualReturn2010 12.97%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.97%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.97%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 20.91% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.91%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -6.17% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (6.17%)
1 Year rr_AverageAnnualReturnYear01 6.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.68%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.16% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (2.79%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.36% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.38%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.52% [23],[34]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.13% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 316
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 667
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,144
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,462
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 216
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 667
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,144
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,462
1 Year rr_AverageAnnualReturnYear01 10.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.06%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2040 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.42% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.02% [23],[34]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.39%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.63% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 166
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 514
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 887
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,933
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 166
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 514
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 887
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,933
1 Year rr_AverageAnnualReturnYear01 12.66%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.61%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 9% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 9.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2050 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2050, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRetirement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is nondiversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones Real ReturnSM 2040+ Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. The Lipper Mixed-Asset Target 2050+ Funds Average is a total performance average of funds tracked by Lipper, Inc. that seek to maximize assets for retirement or other purposes with an expected time horizon exceeding the year 2045.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 3.31%. For the periods shown in the bar chart, the highest quarterly return was 20.60% in the Q2 2009, and the lowest quarterly return was -7.03% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Lipper Mixed-Asset Target 2050+ Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 14.50%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.62%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Dow Jones Real Return(SM) 2040+ Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.21%
Fund Inception** rr_AverageAnnualReturnSinceInception 0.42%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.76% [23],[35]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.38% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 683
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 963
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,264
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,116
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 683
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 963
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,264
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,116
Annual Return 2009 rr_AnnualReturn2009 37.84%
Annual Return 2010 rr_AnnualReturn2010 14.09%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 3.31%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.31%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 20.60% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.60%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -7.03% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.03%)
1 Year rr_AverageAnnualReturnYear01 7.81%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.12%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.05% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.99%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.00% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.80%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.51% [23],[35]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.13% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 316
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 667
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,144
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,462
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 216
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 667
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,144
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,462
1 Year rr_AverageAnnualReturnYear01 12.12%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.45%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2050 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41% [10]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.01% [23],[35]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.38%) [64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.63% [79]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 166
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 514
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 887
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,933
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 166
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 514
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 887
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,933
1 Year rr_AverageAnnualReturnYear01 13.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.99%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2015 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C, or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2015 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2015, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) develop- ing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodi- ties, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2015 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2015 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.83%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 670
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 925
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 670
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 925
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2015 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.58%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 303
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 627
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 203
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 627
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2015 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.51%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.08%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.58%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 153
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 474
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 153
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 474
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2025 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C, or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCO RealRetirement® 2025 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2025, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adeq uate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2025 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2025 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.92% [36]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.26% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 671
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 928
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 671
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 928
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2025 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.67% [36]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.01% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 304
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 630
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 204
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 630
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2025 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.00%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.60% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.17% [36]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.66%) [61],[64]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.51% [77]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 154
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 477
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 154
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 477
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2035 Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. The Fund had not yet commenced operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C, or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The PIMCORealRetirement® 2035 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2035, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO RealRetirement® Funds is their asset allocation,which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO RealRetirement® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequa te income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealReti rement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO RealRetirement® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO RealRetirement® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset class es, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to "real" assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which compliment exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly. The minimums and maximums set out in each range are subject to the total allocation equaling 100% of total assets.

Total Equity Allocation

Total Real Estate
and Commodities
Allocation

Total Fixed Income Allocation

Years to Retirement

Target
Allocation

Range

Target
Allocation

Range

Target
Allocation

Range

40

55%

40-70%

30%

15-45%

15%

5-55%

30

55%

40-70%

25%

10-40%

20%

5-60%

20

45%

30-50%

20%

5-30%

35%

5-70%

10

25%

10-35%

10%

0-20%

65%

35-95%

0

15%

5-25%

5%

0-10%

80%

60-95%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro economic fac tors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The Fund is generally subject to a different level and amount of risk which is relative to its target date and time horizon. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Dow Jones Real ReturnSM 2035 Index is a composite of other indexes. The sub-indexes represent stocks, bonds, TIPs, commodities and real estate securities. The component asset classes are weighted within each index to reflect a targeted level of risk at the beginning and end of the investment horizon. Over time, the weights are adjusted based on predetermined formulas to systematically reduce the level of potential risk as the index's maturity date approaches. It is not possible to invest directly in an unmanaged index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2035 Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.05% [37]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.31% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 676
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 942
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 676
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 942
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2035 Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.80% [37]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.06% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 309
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 646
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 209
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 646
(PIMCO Strategic Markets Funds - Retail) | (PIMCO RealRetirement 2035 Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.05%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.07% [5]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.68% [11]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.30% [37]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.74%) [64],[68]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.56% [78]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 159
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 493
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 159
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 493
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the Russell 2000® Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 571% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 571.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the Russell 2000® Index by investing under normal circumstances in Russell 2000® Index derivatives, backed by a diversified portfolio of Fixed Income Instruments actively managed by Pacific Investment Management Company LLC ("PIMCO"). "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses Russell 2000® Index derivatives instead of Russell 2000® Index stocks to attempt to equal or exceed the daily performance of the Russell 2000® Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of Russell 2000® Index derivatives should closely track changes in the value of the index. However, Russell 2000® Index derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market , with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000® Index, which represents approximately 10% of the total market capitalization of the Russell 3000® Index. As of June 30, 2011, the Russell 2000® Index's average market capitalization (dollar-weighted) was $737 million. The Fund seeks to remain invested in Russell 2000® Index derivatives or Russell 2000® Index stocks even when the Russell 2000® Index is declining.

Though the Fund does not normally invest directly in Russell 2000® Index securities, when Russell 2000® Index derivatives appear to be overvalued relative to the Russell 2000® Index, the Fund may invest all of its assets in a "basket" of Russell 2000® Index stocks. The Fund also may invest in exchange traded funds based on the Russell 2000® Index.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and other restrictions described in the Fund's prospectus and Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Russell 2000® Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of Russell 2000® Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Russell 2000® Index is composed of 2,000 of the smallest companies in the Russell 3000 Index and is considered to be representative of the small cap market in general. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of Funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 7.70%. For the periods shown in the bar chart, the highest quarterly return was 30.78% in the Q2 2009, and the lowest quarterly return was -23.68% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (3/31/2006)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Russell 2000 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 26.85%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.87%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Lipper Specialty Diversified Equity Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.62%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.84%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.04% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.13% [29]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 486
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 721
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 974
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,698
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 486
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 721
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 974
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,698
Annual Return 2007 rr_AnnualReturn2007 1.17%
Annual Return 2008 rr_AnnualReturn2008 (31.21%)
Annual Return 2009 rr_AnnualReturn2009 44.20%
Annual Return 2010 rr_AnnualReturn2010 38.74%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 7.70%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 7.70%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 30.78% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 30.78%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -23.68% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.68%)
1 Year rr_AverageAnnualReturnYear01 33.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.26%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 26.12% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.59% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 21.62% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.34% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Small Cap StocksPLUS TR Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.84%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.04% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.88% [29]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 291
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 591
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,016
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,201
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 191
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 591
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,016
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,201
1 Year rr_AverageAnnualReturnYear01 36.62%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.20%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 225% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 225.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the S&P 500 Index by investing under normal circumstances in S&P 500 Index derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses S&P 500 Index derivatives instead of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the S&P 500 Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of S&P 500 Index derivatives should closely track changes in the value of the S&P 500 Index. However, S&P 500 Index derivatives may be purchased with a small fraction of the assets that w ould be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which is normally not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 Index securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in a "basket" of S&P 500 Index stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominat ed in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Lipper Large-Cap Core Fund Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 75% of their equity assets in companies with market capitalizations (on a three-year weighted basis) greater than 300% of the dollar-weighted median market capitalization of the middle 1,000 securities of the S&P Super-Composite 1500 Index.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 7.33%. For the periods shown in the bar chart, the highest quarterly return was 24.84% in the Q2 2009, and the lowest quarterly return was -25.94% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
10 Years rr_AverageAnnualReturnYear10 1.41%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Lipper Large-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.87%
5 Years rr_AverageAnnualReturnYear05 1.96%
10 Years rr_AverageAnnualReturnYear10 1.34%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 463
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 651
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 855
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,441
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 463
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 651
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 855
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,441
Annual Return 2001 rr_AnnualReturn2001 (12.17%)
Annual Return 2002 rr_AnnualReturn2002 (20.21%)
Annual Return 2003 rr_AnnualReturn2003 28.87%
Annual Return 2004 rr_AnnualReturn2004 10.17%
Annual Return 2005 rr_AnnualReturn2005 2.70%
Annual Return 2006 rr_AnnualReturn2006 14.23%
Annual Return 2007 rr_AnnualReturn2007 6.03%
Annual Return 2008 rr_AnnualReturn2008 (45.60%)
Annual Return 2009 rr_AnnualReturn2009 41.44%
Annual Return 2010 rr_AnnualReturn2010 17.85%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 7.33%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 7.33%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 24.84% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.84%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -25.94% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.94%)
1 Year rr_AverageAnnualReturnYear01 14.31%
5 Years rr_AverageAnnualReturnYear05 1.27%
10 Years rr_AverageAnnualReturnYear10 0.85%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.00% [86]
5 Years rr_AverageAnnualReturnYear05 (0.76%) [86]
10 Years rr_AverageAnnualReturnYear10 (0.78%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.07% [86]
5 Years rr_AverageAnnualReturnYear05 (0.10%) [86]
10 Years rr_AverageAnnualReturnYear10 (0.24%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 668
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 820
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,097
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,661
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 168
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 520
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 897
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,661
1 Year rr_AverageAnnualReturnYear01 11.86%
5 Years rr_AverageAnnualReturnYear05 0.82%
10 Years rr_AverageAnnualReturnYear10 0.65%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.40%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 243
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 443
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 766
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,680
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 143
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 443
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 766
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,680
1 Year rr_AverageAnnualReturnYear01 16.30%
5 Years rr_AverageAnnualReturnYear05 1.41%
10 Years rr_AverageAnnualReturnYear10 0.67%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 117
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 365
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 633
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,398
1 Year rr_AverageAnnualReturnYear01 17.52%
5 Years rr_AverageAnnualReturnYear05 1.65%
10 Years rr_AverageAnnualReturnYear10 0.97%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Long Duration Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmarks, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 339% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 339.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of its benchmark indexes, the S&P 500 Index and a secondary blended index (as described below, and together with the S&P 500 Index, the "Indexes"), by investing under normal circumstances in S&P 500 Index derivatives, backed by a diversified portfolio of long-term Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses S&P 500 Index derivatives instead of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the Indexes. The Fund typically will seek to gain long exposure to the S&P 500 Index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of S&P 500 Index derivatives should closely track chan ges in the value of the S&P 500 Index. However, S&P 500 Index derivatives may be purchased with a small fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies within two years (plus or minus) of the duration of the Barclays Capital Long-Term Government/Credit Index, which as of June 30, 2011 was 13.22 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives and/or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 Index securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in S&P 500 Index stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominat ed in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and Fixed Income Instruments are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the S&P 500 Index. The Fund's secondary benchmark is a blend constructed by adding the returns of the S&P 500 Index to the Barclays Capital Long-Term Government/Credit Index and subtracting 3-Month LIBOR (London Interbank Offered Rate). This blend is intended to represent a portfolio which obtains 100% exposure to the S&P 500 Index via derivatives in exchange for the payment of 3-Month LIBOR, and invests the capital in a long duration bond portfolio. The Fund believes that this self-blended benchmark reflects the Fund's investment strategy more accurately than the S&P 500 Index.

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Return table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The secondary benchmark is a blend constructed by adding the returns of the S&P 500 Index to the Barclays Capital Long-Term Government/Credit Index and subtracting 3-Month LIBOR. S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Barclays Capital Long-Term Government/Credit Index is an unmanaged index of U.S. Government or Investment Grade Credit Securities having a maturity of 10 years or more. The 3 Month LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Institutional*(1)

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 9.73%. For the periods shown in the bar chart, the highest quarterly return was 24.82% in the Q3 2009, and the lowest quarterly return was -17.14% in the Q1 2009.

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

(1) The bar chart and the Average Annual Total Returns table show performance of the Fund's Institutional Class shares, which are not offered in this prospectus. Class A shares would have had substantially similar annual returns because the shares are invested in the same portfolio. Annual returns would differ only to the extent that the Institutional Class and Class A shares have different expenses.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (8/31/2007)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Long Duration Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.74%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.00% [31]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 473
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 681
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 907
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,554
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 473
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 681
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 907
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,554
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 476% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 476.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after five years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the S&P 500 Index by investing under normal circumstances in S&P 500 Index derivatives, backed by a portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may invest in common stocks, options, futures, options on futures and swaps. The Fund normally uses S&P 500 Index derivatives instead of S&P 500 Index stocks to attempt to equal or exceed the daily performance of the S&P 500 Index. The Fund typically will seek to gain long exposure to its benchmark index in an amount, under normal circumstances, approximately equal to the Fund's net assets. The value of S&P 500 Index derivatives should closely track changes in the value of the S&P 500 Index. However, S&P 500 Index derivatives may be purchased with a small fraction of the assets that w ould be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Pacific Investment Management Company LLC ("PIMCO") actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The S&P 500 Index is composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks. The Fund seeks to remain invested in S&P 500 Index derivatives or S&P 500 Index stocks even when the S&P 500 Index is declining.

Though the Fund does not normally invest directly in S&P 500 Index securities, when S&P 500 Index derivatives appear to be overvalued relative to the S&P 500 Index, the Fund may invest all of its assets in a "basket" of S&P 500 Index stocks. The Fund also may invest in exchange traded funds based on the S&P 500 Index, such as Standard & Poor's Depositary Receipts.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated i n foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Principal Risks

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both S&P 500 Index derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of S&P 500 Index stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A, B and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A, B and C shares (July 31, 2003), performance shown in the table is based on the performance of th e Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges, distribution and/or service (12b-1) fees, administrative fees and other expenses paid by Class A, B and C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The Lipper Large-Cap Core Fund Average is a total return performance average of funds tracked by Lipper, Inc. that invest at least 75% of their equity assets in companies with market capitalizations (on a three-year weighted basis) greater than 300% of the dollar-weighted median market capitalization of the middle 1,000 securities of the S&P Super-Composite 1500 Index. The Fund began operations on 6/28/02. Index comparisons began on 6/30/02.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 7.83%. For the periods shown in the bar chart, the highest quarterly return was 25.57% in the Q2 2009, and the lowest quarterly return was -22.23% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/28/2002)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.91%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Lipper Large-Cap Core Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.87%
5 Years rr_AverageAnnualReturnYear05 1.96%
Fund Inception** rr_AverageAnnualReturnSinceInception 4.58%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 477
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 694
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 927
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,598
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 477
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 694
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 927
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,598
Annual Return 2003 rr_AnnualReturn2003 30.56%
Annual Return 2004 rr_AnnualReturn2004 13.13%
Annual Return 2005 rr_AnnualReturn2005 3.67%
Annual Return 2006 rr_AnnualReturn2006 13.32%
Annual Return 2007 rr_AnnualReturn2007 8.06%
Annual Return 2008 rr_AnnualReturn2008 (43.13%)
Annual Return 2009 rr_AnnualReturn2009 40.49%
Annual Return 2010 rr_AnnualReturn2010 25.03%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 7.83%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 7.83%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 25.57% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 25.57%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -22.23% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.23%)
1 Year rr_AverageAnnualReturnYear01 20.34%
5 Years rr_AverageAnnualReturnYear05 3.32%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.47%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 17.62% [86]
5 Years rr_AverageAnnualReturnYear05 (0.42%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.41% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.16% [86]
5 Years rr_AverageAnnualReturnYear05 0.76% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.93% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 3.50%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 532
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 763
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,020
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,642
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 182
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 563
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 970
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,642
1 Year rr_AverageAnnualReturnYear01 20.67%
5 Years rr_AverageAnnualReturnYear05 3.30%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.19%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS Total Return Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 282
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 563
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 970
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,105
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 182
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 563
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 970
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,105
1 Year rr_AverageAnnualReturnYear01 22.96%
5 Years rr_AverageAnnualReturnYear05 3.35%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.13%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Short Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the inverse return of its benchmark, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 94% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 94.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in short positions with respect to the Dow Jones--UBS Commodity Index Total Return (the "Index"), including commodity-linked derivative instruments backed by an actively managed, low volatility portfolio of Fixed Income Instruments, such that the Fund's net asset value may vary inversely with the value of the Index on a daily basis, subject to certain limitations summarized below. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will generally benefit when the price of the Index is declining. When the Index is rising, the Fund will generally not perform as well. Fixed Income Instruments owned by the Fund may also benefit or detract from the Fund's net asset value. The Fund is designed for investors seeking to take advantage of declines in the value of the Index, or investors wishing to hedge existing long commodities positions. However, the Fund is not designed or expected to produce returns which replicate the inverse of the performance of the Index due to compounding, Pacific Investment Management Company LLC's ("PIMCO") active management, Fund fees and expenses and other factors discussed below.

The Fund will maintain short positions through the use of a combination of commodity-linked derivative instruments, including swap agreements, futures, options on futures, commodity index-linked notes and commodity options that provide short exposure to the investment returns of the commodities futures markets. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overall market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments. While the Fund will, under normal circumstances, invest primarily in Index short positions backed by a portfolio of Fixed Income Instruments, PIMCO may reduce the Fund's exposure to Index short positions when PIMCO deems it appropriate to do so. Additionally, the Fu nd may purchase call options on Index futures contracts or on other similar Index derivatives in an effort to limit the total potential decline in the Fund's net asset value during a market in which prices of commodities positions are rising or expected to rise. Because the Fund invests primarily in short positions, gains and losses in the Fund will primarily be taxable as short-term gains or losses. However, a portion of the gains or losses from certain types of derivatives, including futures contracts in which the Fund may choose to invest, will be taxable as long-term gains or losses.

The Fund will seek to gain short exposure to the commodity futures markets primarily through investments in swap agreements and futures, and through investments in the PIMCO Cayman Commodity Fund IV Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). The Subsidiary is advised by PIMCO, and has the same investment objective as the Fund. As discussed in greater detail elsewhere in the prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments inversely linked to certain commodity indices and instruments inversely linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instru ments may specify short exposure to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the inverse returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its short exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser short exposure to that index than the value of the Fund's net assets, or greater or lesser short exposure to a subset of commodities than is represented by a particular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional short exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

The Fund may also invest in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the inverse performance of commodity indices. These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities futures market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest in investment grade securities that are rated at least Baa, including up to 10% of its total assets in securities rated below A, by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar denominated securitie s of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to within 1% (plus or minus) of the foreign currency exposure of the Index, which as of June 30, 2011 was 0%. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.

Although the Fund uses derivatives and other short positions to gain exposures that may vary inversely with the performance of the Index on a daily basis, the Fund as a whole is not designed or expected to produce returns which replicate the inverse of the performance of the Index, and the degree of variation could be substantial, particularly over longer periods. Because the value of the Fund's derivatives short positions move in the opposite direction from the value of the Index each day, for periods greater than one day, the effect of compounding may result in the performance of these derivatives positions, and the Fund's performance attributable to those positions, to be either greater than or less than the inverse of the Index performance for such periods, and the extent of the variation could be substantial due to market volatility and other factors. In addition, the combination of income and capital gains or losse s derived from the Fixed Income Instruments serving as cover for the Fund's short positions, coupled with the ability of the Fund to reduce or limit short exposure, as described above, may result in an imperfect inverse correlation between the performance of the Index and the performance of the Fund. It is possible for the Fund to experience a negative return when the Index is declining, and vice versa. Further, there are a number of other reasons why changes in the value of derivatives positions may not correlate exactly (either positively or inversely) with an index or which may otherwise prevent a mutual fund or its positions from achieving such correlation.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including correlation, liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance of the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Dow Jones-UBS Commodity Index Total Return. The index is an unmanaged index composed of futures contracts on 19 physical commodities. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.41%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 674
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 936
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,219
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,021
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 674
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 936
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,219
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,021
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Short Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.16%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [67]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 307
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 640
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,098
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,369
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 207
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 640
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,098
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,369
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return through the implementation of short investment positions on the S&P 500 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 483% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 483.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing primarily in short positions with respect to the S&P 500 Index (the "Index") or specific Index securities, backed by a portfolio of Fixed Income Instruments, such that the Fund's net asset value may vary inversely with the value of the Index on a daily basis, subject to certain limitations summarized below. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund will generally benefit when the price of the Index is declining. When the Index is rising, the Fund will generally not perform as well. Fixed Income Instruments owned by the Fund may also benefit or detract from the Fund's net asset value. The Fund is designed for investors seeking to take advantage of declines in the value of the Index, or investors wishing to hedge existing long equity positions. However, the Fund is not designed or expected to produce returns which replicate the inverse of the performance of the Index due to compounding, Pacific Investment Management Company LLC's ("PIMCO") active management, Fund fees and expenses and other factors discussed below.

The Fund will maintain short positions through the use of a combination of derivatives, including options, futures, options on futures, and swaps. The Fund may invest, without limitation, in such instruments. While the Fund will, under normal circumstances, invest primarily in Index short positions backed by a portfolio of Fixed Income Instruments, PIMCO may reduce the Fund's exposure to Index short positions when PIMCO deems it appropriate to do so. Additionally, the Fund may purchase call options on Index futures contracts or on other similar Index derivatives in an effort to limit the total potential decline in the Fund's net asset value during a market in which prices of securities are rising or expected to rise. Because the Fund invests primarily in short positions, gains and losses in the Fund will primarily be taxable as short-term gains or losses. However, a portion of the gains or losses from certain types of de rivatives, including futures contracts on broad-based stock indexes in which the Fund may choose to invest, will be taxable as long-term gains or losses.

Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. PIMCO actively manages the fixed income assets held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund is non-dive rsified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. The Fund may also invest up to 10% of its total assets in preferred stocks.

Although the Fund uses derivatives and other short positions to gain exposures that may vary inversely with the performance of the Index on a daily basis, the Fund as a whole is not designed or expected to produce returns which replicate the inverse of the performance of the Index, and the degree of variation could be substantial, particularly over longer periods. Because the value of the Fund's derivatives short positions move in the opposite direction from the value of the Index each day, for periods greater than one day, the effect of compounding may result in the performance of these derivatives positions, and the Fund's performance attributable to those positions, to be either greater than or less than the inverse of the Index performance for such periods, and the extent of the variation could be substantial due to market volatility and other factors. In addition, the combination of income and capital gains or losse s derived from the Fixed Income Instruments serving as cover for the Fund's short positions, coupled with the ability of the Fund to reduce or limit short exposure, as described above, may result in an imperfect inverse correlation between the performance of the Index and the performance of the Fund. It is possible for the Fund to experience a negative return when the Index is declining, and vice versa. Further, there are a number of other reasons why changes in the value of derivatives positions may not correlate exactly (either positively or inversely) with an index or which may otherwise prevent a mutual fund or its positions from achieving such correlation.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the S&P 500 Index. The Fund's performance may vary inversely with the value of the S&P 500 Index on a daily basis, subject to certain limitations. The Fund's secondary benchmark is the Inverse of S&P 500 Index. The Fund believes that the secondary benchmark reflects the Fund's investment strategy more accurately than the S&P 500 Index. It may be reasonable to expect significant differences between the Fund's performance and that of the secondary benchmark, as well as potentially significant differences between the Fund's primary and secondary benchmarks due to compounding and other considerations.

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of Class A and C shares (July 31, 2006 ), performance information shown in the bar chart and table for these classes is based on the perform- ance of the Fund's Institutional Class shares, which are offered in a different prospectus. The prior Institutional Class performance has been adjusted to reflect the actual sales charges (in the Average Annual Total Returns table only), distribution and/or service (12b-1) fees, administrative fees and other expenses paid by Class A and C shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The index focuses on the large-cap segment of the U.S. equities market. The Fund's performance may vary inversely with the value of the index on a daily basis, subject to certain limitations. Effective July 31, 2009, the Fund selected the S&P 500 Index as its primary benchmark in replacement of the Inverse of S&P 500 Index, which the Fund retains as its secondary benchmark. The Fund added the S&P 500 Index to facilitate a comparison of the Fund's performance to the S&P 500 Index. Inverse of S&P 500 Index is an approximate negative equivalent of the return of the S&P 500 Index and is calculated by compounding the daily inverse of the S&P 500 Index total return. The Index focuses on the large-cap segment of the U.S. equities market. The Lipper Ded icated Short-Bias Fund Average is a total return performance average of funds tracked by Lipper, Inc. that employ portfolio strategies consistently creating a "net short" exposure to the market. This classification also includes short-only funds, i.e., funds that pursue short sales of stock or stock index options. The Fund began operations on 7/23/03. Index comparisons began on 7/31/03.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is -3.98%. For the periods shown in the bar chart, the highest quarterly return was 24.72% in the Q4 2008, and the lowest quarterly return was -10.92% in the Q4 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (7/23/2003)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Lipper Dedicated Short-Bias Fund Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (34.06%)
5 Years rr_AverageAnnualReturnYear05 (15.88%)
Fund Inception** rr_AverageAnnualReturnSinceInception (14.08%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.37%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Inverse of S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (16.18%)
5 Years rr_AverageAnnualReturnYear05 (5.27%)
Fund Inception** rr_AverageAnnualReturnSinceInception (7.32%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 477
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 694
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 927
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,598
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 477
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 694
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 927
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,598
Annual Return 2004 rr_AnnualReturn2004 3.13%
Annual Return 2005 rr_AnnualReturn2005 0.43%
Annual Return 2006 rr_AnnualReturn2006 (6.88%)
Annual Return 2007 rr_AnnualReturn2007 5.97%
Annual Return 2008 rr_AnnualReturn2008 47.43%
Annual Return 2009 rr_AnnualReturn2009 (14.21%)
Annual Return 2010 rr_AnnualReturn2010 (9.13%)
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is -3.98%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (3.98%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 24.72% in the Q4 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -10.92% in the Q4 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.92%)
1 Year rr_AverageAnnualReturnYear01 (12.53%)
5 Years rr_AverageAnnualReturnYear05 1.77%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.28%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (12.81%) [86]
5 Years rr_AverageAnnualReturnYear05 (1.27%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (1.11%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (8.12%) [86]
5 Years rr_AverageAnnualReturnYear05 1.02% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.59% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO StocksPLUS TR Short Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.79%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.79%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 282
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 563
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 970
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,105
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 182
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 563
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 970
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,105
1 Year rr_AverageAnnualReturnYear01 (10.56%)
5 Years rr_AverageAnnualReturnYear05 1.80%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.05%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks to provide after-tax inflation-protected return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 350% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 350.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 50% of its assets in debt securities whose interest is, in the opinion of bond counsel for the issuer at the time of issuance, exempt from federal income tax ("Municipal Bonds"), with the remainder of the Fund's assets invested in inflation-indexed bonds of varying maturities issued by the U.S. government, its agencies or instrumentalities (such as Treasury Inflation Protected Securities ("TIPS")), and other types of Fixed Income Instruments, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements (such as CPI swaps). "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. "Real return" equals total return less the estimated cost of inflation. The average portfolio duration of the fixed income portion of this Fund will normally vary based on Pa cific Investment Management Company LLC's ("PIMCO") forecast for interest rates and under normal market conditions is not expected to exceed eight years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.

Municipal Bonds generally are issued by or on behalf of states and local governments and their agencies, authorities and other instrumentalities. The Fund does not intend to invest in securities whose interest is subject to the federal alternative minimum tax. The Fund may invest 25% or more of its total assets in Municipal Bonds that finance education, health care, housing, transportation, utilities and other similar projects, and 25% or more of its total assets in industrial development bonds.

Inflation-indexed bonds are fixed income securities that are structured to provide protection against inflation. The value of the bond's principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for All Urban Consumers ("CPI") as the inflation measure. Effective duration takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Because market convention for bonds is to use nominal yields to measure duration, duration for real return bonds, which are based on real yields, are converted to nominal durations through a conversion factor. The resulting nominal duration typically can range from 20% and 90% of the respective real duration. All inflation-indexed security holdings wi ll be measured in effective (nominal) duration terms.

As part of its principal investment strategies, the Fund's investment in derivatives may consist largely of swaps (including CPI swaps) where the Fund receives inflation-indexed payments. A CPI swap is a fixed maturity, over-the-counter derivative in which the investor receives the "realized" rate of inflation as measured by the CPI over the life of the swap. The investor in turn pays a fixed annualized rate over the life of the swap. This fixed rate is often referred to as the "breakeven inflation" rate and is generally representative of the difference between treasury yields and TIPS yields of similar maturities at the initiation of the swap. CPI swaps are typically in "bullet" format, where all cash flows are exchanged at maturity. The Fund may also invest in municipal inflation-indexed securities.

The Fund may invest in investment-grade securities rated Baa or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund will normally limit its non-U.S. dollar-denominated securities exposure to 5% of its total assets. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund seeks to minimize shareholders' tax liability in connection with the Fund's distribution of realized capital gain by minimizing the net gains available for distribution. In doing so, the Fund typically sells securities when the anticipated performance benefit justifies the resulting gain. This strategy often includes minimizing the sale of securities with large unrealized gain, holding securities long enough to avoid short-term capital gains taxes, selling securities with a higher cost basis first and offsetting capital gains realized in one security by selling another security at a capital loss. In addition, the Fund seeks to minimize distributions that are taxed as ordinary income and not qualified dividend income.

The Fund may invest in derivative instruments, such as options, futures contracts or swap agreements. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Municipal Project-Specific Risk: the risk that the Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the bonds of similar projects (such as those relating to education, health care, housing, transportation, and utilities), industrial development bonds, or in bonds from issuers in a single state

Inflation-Indexed Security Risk: the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation-indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the Barclays Capital Municipal Bond 1-10 year Blend (1-12) Index. The index consists of a broad selection of investment-grade general obligation bonds, revenue bonds, insured bonds (including all insured bonds with a Aaa/AAA rating), and prerefunded bonds with maturities of at least 1 year and less than 12 years. It is an unmanaged index representative of the tax-exempt bond market. The index is made up of all investment grade municipal bonds issued after 12/31/90 having a remaining maturity of at least one year. Lipper Intermediate Municipal Debt Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that invest in municipal debt issues with dollar-weighted average maturities of five to ten years.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 5.47%. For the periods shown in the bar chart, the highest quarterly return was 1.12% in the Q3 2010, and the lowest quarterly return was -0.16% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/30/2009)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Lipper Intermediate Municipal Debt Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.05%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Barclays Capital Municipal Bond 1-10 Year Blend (1-12) Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.13%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.73%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 459
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 636
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 829
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,385
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 459
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 636
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 829
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,385
Annual Return 2010 rr_AnnualReturn2010 1.15%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 5.47%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.47%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 1.12% in the Q3 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.12%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -0.16% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.16%)
1 Year rr_AverageAnnualReturnYear01 (2.65%)
Fund Inception** rr_AverageAnnualReturnSinceInception (0.02%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.80%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception (0.16%) [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.29%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.09% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Tax Managed Real Return Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 237
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,624
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 137
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 428
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 739
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,624
1 Year rr_AverageAnnualReturnYear01 (0.35%)
Fund Inception** rr_AverageAnnualReturnSinceInception 2.79%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of its benchmark consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 82% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 82.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in commodity-linked derivative instruments backed by an actively managed, low volatility portfolio of Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund invests in commodity-linked derivative instruments, including swap agreements, futures, options on futures, commodity index-linked notes and commodity options that provide exposure to the investment returns of the commodities futures markets. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overall market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments.

The Fund will seek to gain exposure to the commodity futures markets primarily through investments in swap agreements and futures, and through investments in the PIMCO Cayman Commodity Fund III Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). The Subsidiary is advised by PIMCO, and has the same investment objective as the Fund. As discussed in greater detail elsewhere in the prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments linked to certain commodity indices and instruments linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instruments may specify exposur e to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser exposure to that index than the value of the Fund's net assets, or greater or lesser exposure to a subset of commodities than is represented by a particular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

The Fund may also invest in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the performance of commodity indices. These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities futures market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed one year. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest in investment grade securities that are rated at least Baa, including up to 10% of its total assets in securities rated below A, by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 10% of its total assets in securities denominated in foreign currencies and may invest without limit in U.S. dollar denominated securitie s of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 5% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund. Performance is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.

The Fund's benchmark index is the Credit Suisse Commodity Benchmark. The Credit Suisse Commodity Benchmark is an unmanaged index composed of futures contracts on 30 physical commodities. The objective of the benchmark is to gain exposure to the broad commodity universe while maintaining sufficient liquidity. Commodities were chosen based on world production levels, sufficient open interest, and volume of trading. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.99%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.36%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.24%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 669
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 922
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,194
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,967
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 669
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 922
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,194
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,967
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.99%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.11%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 302
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 624
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,073
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,317
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 202
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 624
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,073
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,317
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommoditiesPLUS Strategy Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.99%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.12%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61%
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.12%) [66]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 152
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 471
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 813
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,779
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 152
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 471
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 813
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,779
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum real return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 198% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 198.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class B, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example also assumes conversion of Class B shares to Class A shares after seven years. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in commodity-linked derivative instruments backed by a portfolio of inflation-indexed securities and other Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. "Real Return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure. The Fund invests in commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures and options on futures, that provide exposure to the investment returns of the commodities markets, without investing directly in physical commodities. Commodities are assets that have tangible properties, such as oil, metals, and agricultural products. The value of commodity-linked derivative instruments may be affected by overa ll market movements and other factors affecting the value of a particular industry or commodity, such as weather, disease, embargoes, or political and regulatory developments. The Fund may also invest in common and preferred stocks as well as convertible securities of issuers in commodity-related industries.

The Fund will seek to gain exposure to the commodity markets primarily through investments in leveraged or unleveraged commodity index-linked notes, which are derivative debt instruments with principal and/or coupon payments linked to the performance of commodity indices, and through investments in the PIMCO Cayman Commodity Fund I Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the "Subsidiary"). These commodity index-linked notes are sometimes referred to as "structured notes" because the terms of these notes may be structured by the issuer and the purchaser of the note. The value of these notes will rise or fall in response to changes in the underlying commodity or related index of investment. The Fund may also gain exposure to commodity markets by investing in the Subsidiary. The Subsidiary is advised by PIMCO, and has the same investment objective as the Fund. As discussed in greater detail elsewhere in this prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments.

The derivative instruments in which the Fund and the Subsidiary primarily intend to invest are instruments linked to certain commodity indices and instruments linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts. These instruments may specify exposure to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund's portfolio may deviate from the returns of any particular commodity index. The Fund or the Subsidiary may over-weight or under-weight its exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser exposure to that index than the value of the Fund's net assets, or greater or lesser exposure to a subset of commodities than is represented by a par ticular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Fund will seek to maintain notional exposure to one or more commodity indices within 5% (plus or minus) of the value of the Fund's net assets.

Assets not invested in commodity-linked derivative instruments or the Subsidiary may be invested in inflation-indexed securities and other Fixed Income Instruments, including derivative Fixed Income Instruments. The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund. In addition, the Fund may invest its assets in particular sectors of the commodities market.

The average portfolio duration of the fixed income portion of this Fund will vary based on PIMCO's forecast for interest rates and under normal market conditions is not expected to exceed ten years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Ratings Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy back or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred stocks. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of commodity-linked derivative instruments are rising and fixed income securities are declining, the Fund may experience substantial losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Dow Jones-UBS Commodity Total Return Index (formerly named the Dow Jones-AIG Commodity Index Total Return) is an unmanaged index composed of futures contracts on 19 physical commodities. The index is designed to be a highly liquid and diversified benchmark for commodities as an asset class. The Lipper Commodities General Funds Average is a total return performance average of Funds that invest primarily in a blended basket of commodity-linked derivative instruments or physicals. It is not possible to invest directly in an unmanaged index. The Fund began operations on 6/28/02. Index comparisons began on 6/30/02.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 1.53%. For the periods shown in the bar chart, the highest quarterly return was 16.61% in the Q1 2004, and the lowest quarterly return was -35.85% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/28/2002)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Lipper Commodities General Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.86%
5 Years rr_AverageAnnualReturnYear05 (1.97%)
Fund Inception** rr_AverageAnnualReturnSinceInception 4.44%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Dow Jones-UBS Commodity Index Total Return (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.83%
5 Years rr_AverageAnnualReturnYear05 1.18%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.13%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.34% [28]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.21% [76]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 667
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 913
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,178
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,935
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 667
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 913
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,178
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,935
Annual Return 2003 rr_AnnualReturn2003 29.09%
Annual Return 2004 rr_AnnualReturn2004 15.78%
Annual Return 2005 rr_AnnualReturn2005 19.92%
Annual Return 2006 rr_AnnualReturn2006 (3.46%)
Annual Return 2007 rr_AnnualReturn2007 23.17%
Annual Return 2008 rr_AnnualReturn2008 (43.71%)
Annual Return 2009 rr_AnnualReturn2009 39.50%
Annual Return 2010 rr_AnnualReturn2010 23.50%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 1.53%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.53%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 16.61% in the Q1 2004
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.61%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -35.85% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.85%)
1 Year rr_AverageAnnualReturnYear01 16.71%
5 Years rr_AverageAnnualReturnYear05 1.73%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.96%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.81% [86]
5 Years rr_AverageAnnualReturnYear05 (2.16%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.63% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.46% [86]
5 Years rr_AverageAnnualReturnYear05 (0.96%) [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 6.86% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 5.00%
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.09% [28]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.96% [76]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 699
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 915
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,257
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,091
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 199
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 615
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,057
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,091
1 Year rr_AverageAnnualReturnYear01 17.55%
5 Years rr_AverageAnnualReturnYear05 1.86%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.92%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.09% [28]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.96% [76]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 299
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 615
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,057
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,285
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 199
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 615
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,057
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,285
1 Year rr_AverageAnnualReturnYear01 21.54%
5 Years rr_AverageAnnualReturnYear05 2.11%
Fund Inception** rr_AverageAnnualReturnSinceInception 10.88%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO CommodityRealReturn Strategy Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.02% [4]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.59% [28]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.13%) [63]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.46% [76]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 149
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 462
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 797
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,746
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 149
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 462
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 797
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,746
1 Year rr_AverageAnnualReturnYear01 23.33%
5 Years rr_AverageAnnualReturnYear05 2.35%
Fund Inception** rr_AverageAnnualReturnSinceInception 11.07%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 512% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 512.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in derivatives providing long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 Index (the "S&P 500"), backed by a diversified portfolio of short and intermediate maturity Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Enhanced RAFI® 1000 and the S&P 500 are further described below. The Fund's strategy with respect to maintaining long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 can be characterized as "market neutral" because it seeks to maintain a low correlation to the fluctuation of the U.S. equity market as a whole while returning the relative appreciation (or depreciation) of Enhanced RAFI® 1000 over the S&P 500.

Enhanced RAFI® 1000 is a performance recalibrated version of the FTSE RAFI® 1000 Index, which is composed of the 1,000 largest publicly-traded U.S. companies by fundamental accounting value. Unlike other indexes, which are frequently comprised of stocks weighted according to their market capitalization, Enhanced RAFI® 1000 is weighted by a combination of fundamental factors, including sales, cash flow, book values and, if applicable, dividends (sales, cash flow and dividends are averaged over the prior five years), and may incorporate additional factors, including but not limited to the quality of corporate earnings, the risk of financial distress and the quality of corporate governance/accounting practices. Indexes based on market capitalization, such as the S&P 500, generally overweight stocks which are overvalued, and underweight stocks which are undervalued. Enhanced RAFI® 1000 seeks to av oid this problem by weighting stocks based on variables that do not depend on the fluctuations of market valuation. The S&P 500 is an unmanaged index composed of 500 selected common stocks that represent approximately two-thirds of the total market value of all U.S. common stocks.The Fund seeks to maintain long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500 even when Enhanced RAFI® 1000 is underperforming relative to the S&P 500.

The Fund may invest in common stocks, options, futures, options on futures and swaps to gain long exposure to Enhanced RAFI® 1000 andshort exposure to the S&P 500. The Fund typically will seek to simultaneously gain long exposure to Enhanced RAFI® 1000 and short exposure to the S&P 500, each in an amount, under normal circumstances, approximately equal to the Fund's net assets. In a typical swap agreement, the Fund will receive the price appreciation (or depreciation) on Enhanced RAFI® 1000 from the counterparty to the swap agreement in exchange for paying the price appreciation (or depreciation) on the S&P 500 and certain transaction costs. While the Fund will, under normal circumstances, seek to maintain approximately equal value exposure in its long positions in Enhanced RAFI® 1000 and short positions in the S&P 500 in an effort to offset the effects on the Fund's pe rformance of general stock market movements, Pacific Investment Management Company LLC ("PIMCO") may increase or decrease the Fund's long exposure to Enhanced RAFI® 1000 or the Fund's short exposure to the S&P 500 when PIMCO deems it appropriate to do so. Because Enhanced RAFI® 1000 is a proprietary index, there may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. If such swap agreements are not available, or when PIMCO otherwise deems it appropriate to do so, the Fund may invest in, or take short positions in, other derivative instruments, "baskets" of stocks, or individual securities to replicate the performance of Enhanced RAFI® 1000 relative to the S&P 500. The Fund also may invest in exchange traded funds.

The values of derivatives based on Enhanced RAFI® 1000 and the S&P 500 should closely track changes in the value of Enhanced RAFI® 1000 and the S&P 500. However, these derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the Fund's assets may be invested in Fixed Income Instruments. Research Affiliates, LLC, the Fund's sub-adviser, provides investment advisory services in connection with the Fund's use of Enhanced RAFI® 1000 by, among other things, providing PIMCO, or counterparties designated by PIMCO, with a model portfolio reflecting the composition of Enhanced RAFI® 1000 for purposes of developing Enhanced RAFI® 1000 derivatives. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capital U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC registered, taxable and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are sub-divided into more specific indices that are calculated and reported on a regular basis.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mort- gage- or asset-backed securities subject to applicable law and any other restrictions described in the Fund's Prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities and inst ruments that are economically tied to emerging market countries. The Fund may also invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar denominated securities of foreign issuers. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Although the Fund seeks to protect against equity market risk arising from its long exposure to Enhanced RAFI® 1000 by maintaining short exposure to the S&P 500, under certain conditions, generally in a market where Enhanced RAFI® 1000 underperforms relative to the S&P 500 and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience losses. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. Class C performance would be lower than Class A performance because of the lower expenses paid by Class A shares. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund's benchmark index is the 3 Month USD LIBOR Index. LIBOR (London Intrabank Offered Rate) is an average interest rate, determined by the British Bankers Association, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper Equity Market-Neutral Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that employ portfolio strategies generating consistent returns in both up and down markets by selecting positions with a total net market exposure of zero.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 2.80%. For the periods shown in the bar chart, the highest quarterly return was 11.24% in the Q2 2009, and the lowest quarterly return was -4.18% in the Q1 2009.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (2/29/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Lipper Equity Market Neutral Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.47%
Fund Inception** rr_AverageAnnualReturnSinceInception (0.49%)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | 3 Month USD LIBOR Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.34%
Fund Inception** rr_AverageAnnualReturnSinceInception 1.40%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 501
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 769
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,056
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,873
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 501
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 769
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,056
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,873
Annual Return 2009 rr_AnnualReturn2009 15.79%
Annual Return 2010 rr_AnnualReturn2010 10.74%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 2.80%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.80%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.24% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.24%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.18% in the Q1 2009
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.18%)
1 Year rr_AverageAnnualReturnYear01 6.11%
Fund Inception** rr_AverageAnnualReturnSinceInception 7.64%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.58% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 1.01% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.95% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 3.99% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental Advantage Total Return Strategy Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.04%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.04%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 307
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 640
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,098
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,369
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 207
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 640
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,098
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,369
1 Year rr_AverageAnnualReturnYear01 8.54%
Fund Inception** rr_AverageAnnualReturnSinceInception 8.65%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of the FTSE RAFI® 1000 Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): None

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 453% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 453.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to exceed the total return of the FTSE RAFI® 1000 Index (the "Index") by investing under normal circumstances in derivatives based on Enhanced RAFI® 1000, an enhanced, performance recalibrated version of the Index ("Enhanced RAFI® 1000"), backed by a portfolio of short and intermediate maturity Fixed Income Instruments. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Index and Enhanced RAFI® 1000 are further described below. The Fund may invest in common stocks, options, futures, options on futures and swaps, including derivatives based on the Index. The Fund uses Enhanced RAFI® 1000 derivatives in addition to or in place of Enhanced RAFI® 1000 stocks to attempt to equal or exceed the daily performance of the Index.The values of Enhanced RAFI® 1000 derivatives should closely track changes in the value of Enhanced RAFI® 1000. However, Enhanced RAFI® 1000 derivatives may be purchased with a fraction of the assets that would be needed to purchase the equity securities directly, so that the remainder of the assets may be invested in Fixed Income Instruments. Research Affiliates, LLC, the Fund's sub-adviser, provides investment advisory services in connection with the Fund's use of Enhanced RAFI® 1000 by, among other things, providing Pacific Investment Management Company LLC ("PIMCO"), or counterparties designated by PIMCO, with a model portfolio reflecting the composition of Enhanced RAFI® 1000 for purposes of developing Enhanced RAFI® 1000 derivatives. PIMCO actively manages the Fixed Income Instruments held by the Fund with a view toward enhancing the Fund's total return, subject to an overall portfolio duration which normally varies from a one year minimum duration to a maximum of two years above the duration of the Barclays Capital U.S. Aggregate Index. As of June 30, 2011, the duration of the Barclays Capit al U.S. Aggregate Index was 5.19 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sectors are subdivided into more specific indices that are calculated and reported on a regular basis.

The Index is composed of the 1,000 largest publicly-traded U.S. companies by fundamental accounting value, which includes accounting data found in a company's annual report, selected from the constituents of a proprietary U.S. stock universe. Unlike other indexes, which are frequently comprised of stocks weighted according to their market capitalization, the Index is weighted by a combination of fundamental factors, including sales, cash flow, book values and, if applicable, dividends (sales, cash flow and dividends are averaged over the prior five years). Indexes based on market capitalization, such as the S&P 500, generally overweight stocks which are overvalued, and underweight stocks which are undervalued. Indexes based on fundamental factors, however, such as the Index, seek to avoid this problem by weighting stocks based on variables that do not depend on the fluctuations of market valuation. Enhanced RAFI® 1000 is a performance recalibrated version of the Index that incorporates additional factors, including but not limited to the quality of corporate earnings, the risk of financial distress, the quality of corporate governance/accounting practices and recalibrates existing factors utilized in the Index that affect a company's fundamental drivers of value. Enhanced RAFI® 1000 may also be rebalanced more frequently than the Index. The Fund seeks to remain invested in Enhanced RAFI® 1000 derivatives or Enhanced RAFI® 1000 stocks even when Enhanced RAFI® 1000 is declining.

The Fund typically will seek to gain exposure to Enhanced RAFI® 1000 by investing in total return swap agreements. In a typical swap agreement, the Fund will receive the price appreciation (or depreciation) on Enhanced RAFI® 1000 from the counterparty to the swap agreement in exchange for paying the counterparty an agreed upon fee. The Fund's sub-adviser facilitates the Fund's use of Enhanced RAFI® 1000 derivatives by providing model portfolios of Enhanced RAFI® 1000 securities to the Fund's swap counterparties, so that the counterparties can provide total return swaps based on Enhanced RAFI® 1000 to the Fund. Because the Enhanced RAFI® 1000 is a proprietary index, there may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. If such swap agreements are not available, the Fund may invest in other derivative instruments, "baskets" of stocks, o r individual securities to replicate the performance of Enhanced RAFI® 1000.

Though the Fund does not normally invest directly in Enhanced RAFI® 1000 securities, when Enhanced RAFI® 1000 derivatives appear to be overvalued relative to Enhanced RAFI® 1000, the Fund may invest all of its assets in a "basket" of Enhanced RAFI® 1000 stocks. The Fund also may invest in exchange traded funds.

The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. Assets not invested in equity securities or derivatives may be invested in Fixed Income Instruments. The Fund may invest up to 10% of its total assets in high yield securities ("junk bonds") rated B or higher by Moody's Investors Service, Inc. ("Moody's"), or equivalently rated by Standard & Poor's Rating Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominat ed in foreign currencies and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 20% of its total assets. The Fund may also invest up to 10% of its total assets in preferred stocks.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. Under certain conditions, generally in a market where the value of both Enhanced RAFI® 1000 derivatives and fixed income securities are declining or in periods of heightened market volatility, the Fund may experience greater losses or lesser gains than would be the case if it invested directly in a portfolio of Enhanced RAFI® 1000 stocks. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risk of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If they did, the returns would be lower than those shown. Unlike the bar chart, performance for Class A and C shares in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against two benchmarks. The Fund's primary benchmark is the FTSE RAFI® 1000 Index. FTSE RAFI® 1000 Index is part of the FTSE RAFI® Index Series, launched in association with Research Affiliates, LLC. As part of FTSE Group's range of nonmarket cap weighted indices, the FTSE RAFI® Index Series weights index constituents using four fundamental factors, rather than market capitalization. These factors include dividends, cash flow, sales and book value. The FTSE RAFI® US 1000 Index comprises the largest 1000 US-listed companies by fundamental value, selected from the constituents of the FTSE US All Cap Index, part of the FTSE Global Equity Index Series (GEIS). The total return index calculations add the income a stock's dividend provides to the performance of the index. The Fund's secondary benchmark is the S&P 500 Index. S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The index focuses on the large-cap segment of the U.S. equities market. The Lipper Specialty Diversified Equity Funds Average is a total return performance average of Funds tracked by Lipper, Inc, that, by portfolio practice, invest in all market capitalization ranges without restriction. These funds typically have distinctly different strategies and performance, resulting in a low coefficient of determination (r-squared) compared to other U.S. diversified equity funds.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 9.04%. For the periods shown in the bar chart, the highest quarterly return was 31.73% in the Q2 2009, and the lowest quarterly return was -23.89% in the Q4 2008.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (6/30/2005)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | FTSE RAFI US 1000 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 19.99%
5 Years rr_AverageAnnualReturnYear05 4.74%
Fund Inception** rr_AverageAnnualReturnSinceInception 5.22%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | Lipper Specialty Diversified Equity Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.62%
5 Years rr_AverageAnnualReturnYear05 1.98%
Fund Inception** rr_AverageAnnualReturnSinceInception 2.07%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | S&P 500 Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.06%
5 Years rr_AverageAnnualReturnYear05 2.29%
Fund Inception** rr_AverageAnnualReturnSinceInception 3.12%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.20% [57]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 493
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 742
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,010
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,775
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 493
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 742
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,010
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,775
Annual Return 2006 rr_AnnualReturn2006 16.70%
Annual Return 2007 rr_AnnualReturn2007 7.37%
Annual Return 2008 rr_AnnualReturn2008 (43.92%)
Annual Return 2009 rr_AnnualReturn2009 56.50%
Annual Return 2010 rr_AnnualReturn2010 30.03%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 9.04%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 9.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 31.73% in the Q2 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 31.73%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -23.89% in the Q4 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.89%)
1 Year rr_AverageAnnualReturnYear01 25.15%
5 Years rr_AverageAnnualReturnYear05 6.60%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.60%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.79% [86]
5 Years rr_AverageAnnualReturnYear05 0.32% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 0.67% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.68% [86]
5 Years rr_AverageAnnualReturnYear05 1.88% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 2.09% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Fundamental IndexPLUS TR Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.94%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01% [4]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.95% [57]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 298
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 612
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,052
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,275
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 198
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 612
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,052
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,275
1 Year rr_AverageAnnualReturnYear01 27.86%
5 Years rr_AverageAnnualReturnYear05 6.63%
Fund Inception** rr_AverageAnnualReturnSinceInception 6.58%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks total return which exceeds that of a blend of 60% MSCI World Index/40% Barclays Capital U.S. Aggregate Index.
Expense [Heading] rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares--Class A, B, C and R Shares" section on page 130 of the Fund's prospectus or from your financial advisor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund is intended for investors who prefer to have their asset allocation decisions made by professional investment managers. Pacific Investment Management Company LLC ("PIMCO") uses a three-step approach in seeking to achieve the Fund's investment objective which consists of 1) developing a target asset allocation; 2) developing a series of relative value strategies designed to add value beyond the target allocation; and 3) utilizing hedging techniques to manage risks. PIMCO evaluates these three steps daily and uses varying combinations of Acquired Funds and/or direct investments to implement them within the Portfolio. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds such as the PIMCO All Asset, PIMCO All Asset All Authority, PIMCO Global Multi-Asset and PIMCO RealRetirement® Funds ("Underlying PIMCO Funds"), and may also invest in other affiliated, includin g funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds").

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940, as amended (the "1940 Act"), Fixed Income Instruments, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest, without limitation, in any of the Underlying PIMCO Funds (except the PIMCO CommoditiesPLUSTM Short Strategy Fund, PIMCO CommoditiesPLUSTM Strategy Fund and PIMCO CommodityRealReturn Strategy Fund®). The Fund will inves t either directly or indirectly (through a fund) in instruments that are economically tied to at least three countries (one of which may be the United States).

The Fund seeks concurrent exposure to a broad spectrum of asset classes and other investments. The Fund will typically invest 20% to 80% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of real estate investment trusts and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund and in other equity-related Acquired Funds). With respect to its direct or indirect (through a fund) investments in equity securities, there is no limitation on the market capitalization range of the issuers in which the Fund may invest. The Fund may invest up to 25% of its total assets in commodity-related investments (including investment in the PIMCO Cayman Commodity Fund II Ltd., a wholly-owned subsidiary of the Portfolio organi zed under the laws of the Cayman Islands (the "Subsidiary"), and the PIMCO CommoditiesPLUSTM Short Strategy Fund, PIMCO CommoditiesPLUSTM Strategy Fund, PIMCO Commodity RealReturn Strategy Fund®, Underlying PIMCO Funds). The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments. As discussed in greater detail elsewhere in this prospectus, the Subsidiary (unlike the Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments. The Fund may invest up to 25% of its total assets in the Subsidiary. The Fund may invest, without limitation, in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund may invest, without limitation, in high yield securities ("junk bonds"). The Fund may invest, without limitation, in securities and instruments that are economi cally tied to emerging market countries. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.

The Fund is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified fund.

The Fund's assets are not allocated according to a predetermined blend of shares of the Acquired Funds and/or direct investments in securities, instruments and other investments. Instead, when making allocation decisions among the Acquired Funds, securities, instruments and other investments, PIMCO considers various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends data relating to trade balances, and labor information. PIMCO uses these factors to help determine the Fund's target asset allocation and to identify potentially attractive relative value and risk hedging strategies. PIMCO has the flexibility to reallocate the Portfolio's assets among any or all of the investment exposures represented by affiliated or unaffiliated funds, or invest directly in securities, instruments and other investments, based on its ongoing analyses of the global economy and financial markets. While these analyses are performed daily,material shifts in investment exposures typically take place over longer periods of time.

As part of its investment process, PIMCO will seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce the Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns.

Once the target asset allocation, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.
Risk [Heading] rr_RiskHeading

Principal Risks

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund, include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are:

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions as to how its assets are allocated or reallocated

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector

Derivatives Risk: the risk of investing in derivative instruments, including liquidity, interest rate, market, credit and management risks, mispricing or improper valuation. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred stocks, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Risk: the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk and prepayment risk

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Foreign (non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, and nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that a Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. A Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Currency Risk: the risk that foreign currencies will decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Smaller Company Risk: the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary's investments. There is no guarantee that the investment objective of the Subsidiary will be achieved

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that legislative, regulatory, or tax developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Sale Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Fund

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur

Arbitrage Risk: the risk that securities purchased pursuant to an arbitrage strategy intended to take advantage of a perceived relationship between the value of two securities may not perform as expected

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text] rr_RiskLoseMoney It is possible to lose money on an investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The performance information below shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Class A shares, but does not reflect the impact of sales charges (loads). If it did, returns would be lower than those shown. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets. As of May 27, 2010 the MSCI World Index consisted of the following 24 developed market country indices: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Greece, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom, and the United States. The index represents the unhedged performance of the constituent stocks, in US dollars. The Barclays Capital U.S. Aggregate Index represents securities that are SEC-registered, taxable, and dollar denominated. The index covers the U.S. investment grade fixed rate bond market, with index components for government and corporate securities, mortgage pass-through securities, and asset-backed securities. These major sect ors are subdivided into more specific indices that are calculated. The Lipper Global Flexible Portfolio Funds Average is a total return performance average of funds tracked by Lipper, Inc. that allocate investments across various asset classes, including both domestic and foreign stocks, bonds, and money market instruments with a focus on total return. At least 25% of their portfolio is invested in securities traded outside of the United States, including shares of gold mines, gold-oriented mining finance houses, gold coins, or bullion.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/ DailyPerformance and quarterly updates at http://investments. pimco.com/QuarterlyPerformance.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

Calendar Year Total Returns -- Class A*

Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2011 is 4.49%. For the periods shown in the bar chart, the highest quarterly return was 11.30% in the Q3 2009, and the lowest quarterly return was -4.67% in the Q2 2010.

Performance Table Heading rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/10)

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are for Class A shares only. After-tax returns for other classes will vary.
Performance Table Footnotes rr_PerformanceTableFootnotesTextBlock **Fund Inception Date (10/29/2008)
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | MSCI World Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.76%
Fund Inception** rr_AverageAnnualReturnSinceInception 18.74%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Lipper Global Flexible Portfolio Funds Average (reflects no deductions for sales charges or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.87%
Fund Inception** rr_AverageAnnualReturnSinceInception 16.94%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | 60% MSCI World Index/40% Barclays Capital U.S. Aggregate Index (reflects no deductions for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.23%
Fund Inception** rr_AverageAnnualReturnSinceInception 15.29%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.30%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.07% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 708
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,039
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,393
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,387
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 708
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,039
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,393
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,387
Annual Return 2009 rr_AnnualReturn2009 19.16%
Annual Return 2010 rr_AnnualReturn2010 11.75%
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return as of June 30, 2011 is 4.49%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.49%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return was 11.30% in the Q3 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.30%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return was -4.67% in the Q2 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.67%)
1 Year rr_AverageAnnualReturnYear01 7.53%
Fund Inception** rr_AverageAnnualReturnSinceInception 12.11%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Class A | Return After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.60% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 9.72% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Class A | Return After Taxes on Distributions and Sales of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.97% [86]
Fund Inception** rr_AverageAnnualReturnSinceInception 8.98% [86]
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets 1.30%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.82% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 2.39%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 342
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 745
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,275
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,726
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 242
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 745
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,275
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,726
1 Year rr_AverageAnnualReturnYear01 9.90%
Fund Inception** rr_AverageAnnualReturnSinceInception 13.30%
(PIMCO Strategic Markets Funds - Retail) | (PIMCO Global Multi-Asset Fund) | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 1.30%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.52%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.32% [23]
Expense Reimbursement/Fee Waiver/Expense Reduction rr_FeeWaiverOrReimbursementOverAssets (0.43%) [64],[65]
Total Annual Fund Operating Expenses After Expense Reimbursement/Fee Waiver/Expense Reduction rr_NetExpensesOverAssets 1.89%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 192
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 594
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,021
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,212
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 192
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 594
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,021
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,212
1 Year rr_AverageAnnualReturnYear01 11.46%
Fund Inception** rr_AverageAnnualReturnSinceInception 13.80%
[1] Regular sales charges may apply when Class A shares of the Fund (on which no sales charge was paid at the time of purchase) are exchanged for shares of other funds offered by the Trust.
[2] Shares that are held 30 or fewer calendar days are subject to a redemption fee. The Trust may waive this fee under certain circumstances.
[3] Shares that are held 30 or fewer calendar days are subject to a redemption fee. The Trust may waive this fee under certain circumstances.
[4] "Other Expenses" reflect interest expense. Interest expense results from the Fund's use of certain investments such as reverse repurchase agreements. Such expense is required to be treated as a Fund expense for accounting purposes and is not payable to PIMCO. Any interest expense amount will vary based on the Fund's use of those investments as an investment strategy best suited to seek the objective of the Fund.
[5] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.
[6] "Other Expenses" reflect interest expense. Interest expense results from the Fund's ability to borrow money for investment purposes from a committed line of credit. Such expense is required to be treated as a Fund expense for accounting purposes and is not payable to PIMCO. Any interest expense amount will vary based on the Fund's use of those investments as an investment strategy best suited to seek the objective of the Fund.
[7] Acquired Fund Fees and Expenses (Underlying PIMCO Funds Expenses) include estimated interest expense of 0.02%. Interest expense is based on the amounts incurred during an Underlying PIMCO Fund's most recent fiscal year as a result of entering into certain investments, such as reverse repurchase agreements. This interest expense is required to be treated as an expense of such Underlying PIMCO Fund for accounting purposes, but the amount of interest expense (if any) will vary with the Underlying PIMCO Fund's use of those investments (like reverse repurchase agreements) as an investment strategy.
[8] Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.02%. Interest expense is based on the amounts incurred during an Underlying PIMCO Fund's most recent fiscal year as a result of entering into certain investments, such as reverse repurchase agreements. This interest expense is required to be treated as an expense of such Underlying PIMCO Fund for accounting purposes, but the amount of interest expense (if any) will vary with the Underlying PIMCO Fund's use of those investments (like reverse repurchase agreements) as an investment strategy.
[9] Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.01%. Interest expense is based on the amounts incurred during an Underlying PIMCO Fund's most recent fiscal year as a result of entering into certain investments, such as reverse repurchase agreements. This interest expense is required to be treated as an expense of such Underlying PIMCO Fund for accounting purposes, but the amount of interest expense (if any) will vary with the Underlying PIMCO Fund's use of those investments (like reverse repurchase agreements) as an investment strategy.
[10] Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.03%. Interest expense is based on the amounts incurred during an Underlying PIMCO Fund's most recent fiscal year as a result of entering into certain investments, such as reverse repurchase agreements. This interest expense is required to be treated as an expense of such Underlying PIMCO Fund for accounting purposes, but the amount of interest expense (if any) will vary with the Underlying PIMCO Fund's use of those investments (like reverse repurchase agreements) as an investment strategy.
[11] Acquired Fund Fees and Expenses include interest expense of the Underlying PIMCO Funds of 0.01%. Interest expense is based on the amounts incurred during an Underlying PIMCO Fund's most recent fiscal year as a result of entering into certain investments, such as reverse repurchase agreements. This interest expense is required to be treated as an expense of such Underlying PIMCO Fund for accounting purposes, but the amount of interest expense (if any) will vary with the Underlying PIMCO Fund's use of those investments (like reverse repurchase agreements) as an investment strategy.
[12] Total Annual Fund Operating Expenses excluding interest expense is 0.90%, 1.65% and 1.65% for Class A, Class B and Class C shares, respectively.
[13] Total Annual Fund Operating Expenses excluding interest expense is 0.825%, 1.575% and 1.575% for Class A, Class B and Class C shares, respectively.
[14] Total Annual Fund Operating Expenses excluding interest expense is 0.85%, 1.60%, 1.35% and 1.10% for Class A, Class B, Class C and Class R shares, respectively.
[15] Total Annual Fund Operating Expenses excluding interest expense is 1.05% and 1.80% for Class A and Class C shares, respectively.
[16] Total Annual Fund Operating Expenses excluding interest expense is 1.25% and 2.00% for Class A and Class C shares, respectively.
[17] Total Annual Fund Operating Expenses excluding interest expense is 0.90% for Class A shares.
[18] Total Annual Fund Operating Expenses excluding interest expense is 0.85%, 1.00% and 1.10% for Class A, Class C and Class R shares, respectively.
[19] Total Annual Fund Operating Expenses excluding interest expense is 1.30%, 2.05% and 1.55% for Class A, Class C and Class R shares, respectively.
[20] Total Annual Fund Operating Expenses excluding interest expense is 1.10% and 1.85% for Class A and Class C shares, respectively.
[21] Total Annual Fund Operating Expenses excluding interest expense is 0.95% for Class A shares.
[22] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.85% and 2.60% for Class A and Class C shares, respectively.
[23] Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets of the Fund, as set forth in the Financial Highlights table of the Fund's prospectus, because the Ratio of Expenses to Average Net Assets reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
[24] Total Annual Fund Operating Expenses excluding interest expense is 1.56% and 2.31% for Class A and Class C shares, respectively.
[25] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.445%, 2.195%, 2.195%, and 1.745% for Class A, Class B, Class C and Class R shares, respectively.
[26] Total Annual Fund Operating Expenses excluding interest expense is 1.16%, 1.91% and 1.91% for Class A, Class B and Class C shares, respectively.
[27] Total Annual Fund Operating Expenses excluding interest expense is 1.14%, 1.89% and 1.89% for Class A, Class B and Class C shares, respectively.
[28] Total Annual Fund Operating Expenses excluding interest expense is 1.32%, 2.07%, 2.07% and 1.57% for Class A, Class B, Class C and Class R shares, respectively.
[29] Total Annual Fund Operating Expenses excluding interest expense is 1.09% and 1.84% for Class A and Class C shares, respectively.
[30] Total Annual Fund Operating Expenses excluding interest expense is 1.04% and 1.79% for Class A and Class C shares, respectively.
[31] Total Annual Fund Operating Expenses excluding interest expense is 0.99% for Class A shares.
[32] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.60%, 2.35% and 1.85% for the Class A, Class C and Class R shares, respectively.
[33] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.66%, 2.41% and 1.91% for the Class A, Class C and Class R shares, respectively.
[34] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.74%, 2.49% and 1.99% for the Class A, Class C and Class R shares, respectively.
[35] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.73%, 2.48% and 1.98% for the Class A, Class C and Class R shares, respectively.
[36] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.91%, 2.66% and 2.16% for the Class A, Class C and Class R shares, respectively.
[37] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 2.04%, 2.79% and 2.29% for the Class A, Class C and Class R shares, respectively.
[38] Total Annual Fund Operating Expenses excluding interest expense is 0.50%, 0.60%, 0.75% and 0.90% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[39] Total Annual Fund Operating Expenses excluding interest expense is 0.475%, 0.575% and 0.725% for Institutional Class, Class P and Administrative Class shares, respectively.
[40] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. See "Management of the Funds--Temporary Fee Waivers, Reductions and Reimbursements" for additional information. Such waivers, if any, are not reflected in this table.
[41] Total Annual Fund Operating Expenses excluding interest expense is 0.45%, 0.55%, 0.70% and 0.85% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[42] Total Annual Fund Operating Expenses excluding interest expense is 0.65%, 0.75%, 0.90% and 1.05% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[43] Total Annual Fund Operating Expenses excluding interest expense is 0.85%, 0.95%, 1.10% and 1.25% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[44] Total Annual Fund Operating Expenses excluding interest expense is 0.50%, 0.60% and 0.75% for Institutional Class, Class P and Administrative Class shares, respectively.
[45] Total Annual Fund Operating Expenses excluding interest expense is 0.45%, 0.55%, 0.70% and 0.75% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[46] Total Annual Fund Operating Expenses excluding interest expense is 0.90%, 1.00%, 1.15% and 1.30% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[47] Total Annual Fund Operating Expenses excluding interest expense is 0.70%, 0.80%, 0.95% and 1.10% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[48] Total Annual Fund Operating Expenses excluding interest expense is 0.55%, 0.65% and 0.80% for Institutional Class, Class P and Administrative Class shares, respectively.
[49] Total Annual Fund Operating Expenses excluding interest expense is 1.11%, 1.21%, 1.36% and 1.51% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[50] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 1.40%, 1.50%, 1.65% and 1.80% for the Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[51] Total Annual Fund Operating Expenses excluding interest expense is 0.79%, 0.89%, 1.04% and 1.19% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[52] Total Annual Fund Operating Expenses excluding interest expense of the Underlying PIMCO Funds is 0.945%, 1.045%, 1.195% and 1.345% for the Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[53] Total Annual Fund Operating Expenses excluding interest expense is 0.87%, 0.97%, 1.12% and 1.32% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[54] Total Annual Fund Operating Expenses excluding interest expense is 0.55%, 0.65% and 0.80% for Institutional Class, Class P and Administrative Class shares, respectively.
[55] Total Annual Fund Operating Expenses excluding interest expense is 0.69%, 0.79%, 0.94% and 1.09% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[56] Total Annual Fund Operating Expenses excluding interest expense is 0.59% and 0.84% for Institutional Class and Administrative Class shares, respectively.
[57] Total Annual Fund Operating Expenses excluding interest expense is 1.19% and 1.94% for Class A and Class C shares, respectively.
[58] PIMCO has contractually agreed, through July 31, 2012, to waive a portion of its advisory fee equal to 0.01% of average daily net assets. Additionally, PIMCO has contractually agreed, through July 31, 2012, to waive a portion of its supervisory and administrative fee equal to 0.05% of the average daily net assets attributable in the aggregate to the Fund's Class A and Class C shares. The contractual fee waivers renew annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term.
[59] PIMCO has contractually agreed, through July 31, 2012, to waive a portion of its advisory fee equal to 0.05% of average daily net assets.
[60] PIMCO has contractually agreed, through September 30, 2012, to waive a portion of its advisory fee equal to 0.05% of average daily net assets.
[61] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2012, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees plus such recoupment, do not exceed the Expense Limit.
[62] PIMCO has contractually agreed, through July 31, 2012, to reduce its advisory fee to the extent that the Underlying PIMCO Fund Expenses attributable to advisory and supervisory and administrative fees exceed 0.64% of the total assets invested in Underlying PIMCO Funds. PIMCO may recoup these waivers in future periods, not exceeding three years, provided total expenses, including such recoupment, do not exceed the annual expense limit. "Other Expenses" reflect recoupment of waived advisory and supervisory and administrative fees from prior periods.
[63] PIMCO has contractually agreed to waive the Fund's advisory fee and the supervisory and administrative fee in an amount equal to the management fee and administrative services fee, respectively, paid by the PIMCO Cayman Commodity Fund I Ltd. (the "Subsidiary") to PIMCO. The Subsidiary pays PIMCO a management fee and an administrative services fee at the annual rates of 0.49% and 0.20%, respectively, of its net assets. This waiver may not be terminated by PIMCO and will remain in effect for as long as PIMCO's contract with the Subsidiary is in place.
[64] PIMCO has contractually agreed, through July 31, 2012, to waive, first, the advisory fee and, second, the supervisory and administrative fee it receives from the Fund in an amount equal to the expenses attributable to the Management Fees of Underlying PIMCO Funds indirectly incurred by the Fund in connection with its investments in Underlying PIMCO Funds, to the extent the Fund's Management Fees are greater than or equal to the Management Fees of the Underlying PIMCO Funds. This waiver renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term.
[65] PIMCO has contractually agreed to waive the Fund's advisory fee and the supervisory and administrative fee in an amount equal to the management fee and administrative services fee, respectively, paid by the PIMCO Cayman Commodity Fund II Ltd. (the "Subsidiary") to PIMCO. The Subsidiary pays PIMCO a management fee and an administrative services fee at the annual rates of 0.49% and 0.20%, respectively, of its net assets. This waiver may not be terminated by PIMCO and will remain in effect for as long as PIMCO's contract with the Subsidiary is in place.
[66] PIMCO has contractually agreed to waive the Fund's advisory fee and the supervisory and administrative fee in an amount equal to the management fee and administrative services fee, respectively, paid by the PIMCO Cayman Commodity Fund III Ltd. (the "Subsidiary") to PIMCO. The Subsidiary pays PIMCO a management fee and an administrative services fee at the annual rates of 0.49% and 0.20%, respectively, of its net assets. This waiver may not be terminated by PIMCO and will remain in effect for as long as PIMCO's contract with the Subsidiary is in place.
[67] PIMCO has contractually agreed to waive the Fund's advisory fee and the supervisory and administrative fee in an amount equal to the management fee and administrative services fee, respectively, paid by the PIMCO Cayman Commodity Fund IV Ltd. (the "Subsidiary") to PIMCO. The Subsidiary pays PIMCO a management fee and an administrative services fee at the annual rates of 0.49% and 0.20%, respectively, of its net assets. This waiver may not be terminated by PIMCO and will remain in effect for as long as PIMCO's contract with the Subsidiary is in place.
[68] PIMCO has contractually agreed, through July 31, 2012, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.
[69] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2012, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Institutional Class, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees plus such recoupment, do not exceed the Expense Limit.
[70] PIMCO has contractually agreed, through July 31, 2012 to waive a portion of its advisory fee equal to 0.01% of the average daily net assets. Additionally, PIMCO has contractually agreed, through July 31, 2012, to waive a portion of its supervisory and administrative fee equal to 0.05% of average daily net assets attributable in the aggregate to the Fund's Class D shares. The contractual fee waivers renew annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term.
[71] PIMCO has contractually agreed, through July 31, 2012, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class M, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.
[72] PIMCO has contractually agreed, through July 31, 2012, to reduce its advisory fee to the extent that the Underlying PIMCO Fund Expenses attributable to advisory and supervisory and administrative fees exceed 0.64% of the total assets invested in Underlying PIMCO Funds. PIMCO may recoup these waivers in future periods, not exceeding three years, provided total expenses, including such recoupment, do not exceed the annual expense limit. The fee reduction is implemented based on a calculation of Underlying PIMCO Fund Expenses attributable to advisory and supervisory and administrative fees that is different from the calculation of Acquired Fund Fees and Expenses listed in the table above.
[73] PIMCO has contractually agreed, through July 31, 2012, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Institutional Class, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees plus such recoupment, do not exceed the Expense Limit.
[74] Total Annual Fund Operating Expenses After Expense Reduction excluding interest expense is 0.80%, 1.55% and 1.05% for Class A, Class C and Class R shares, respectively.
[75] Total Annual Fund Operating Expenses After Expense Reimbursement excluding interest expense of the Underlying PIMCO Funds is 1.385%, 2.135%, 2.135% and 1.685% for Class A, Class B, Class C and Class R shares, respectively.
[76] Total Annual Fund Operating Expenses After Fee Waiver excluding interest expense is 1.19%, 1.94%, 1.94% and 1.44% for Class A, Class B, Class C and Class R, respectively.
[77] Total Annual Fund Operating Expenses After Expense Reduction excluding interest expense of the Underlying PIMCO Funds is 1.25%, 2.00% and 1.50% for the Class A, Class C and Class R shares, respectively.
[78] Total Annual Fund Operating Expenses After Expense Reduction excluding interest expense of the Underlying PIMCO Funds is 1.30%, 2.05% and 1.55% for the Class A, Class C and Class R shares, respectively.
[79] Total Annual Fund Operating Expenses After Expense Reduction excluding interest expense of the Underlying PIMCO Funds is 1.35%, 2.10% and 1.60% for the Class A, Class C and Class R shares, respectively.
[80] Total Annual Fund Operating Expenses After Fee Waiver excluding interest expense is 0.40%, 0.50%, 0.65% and 0.70% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[81] Total Annual Fund Operating Expenses After Expense Reimbursement excluding interest expense of the Underlying PIMCO Funds is 0.885%, 0.985%, 1.135% and 1.285% for the Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[82] Total Annual Fund Operating Expenses After Fee Waiver excluding interest expense is 0.74%, 0.84%, 0.99% and 1.19% for Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[83] Total Annual Fund Operating Expenses After Expense Reduction excluding interest expense of the Underlying PIMCO Funds is 0.75%, 0.85%, 1.00% and 1.25% for the Institutional Class, Class P, Administrative Class and Class D shares, respectively.
[84] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.
[85] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Class M shares only. After-tax returns for other classes will vary.
[86] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Class A shares only. After-tax returns for other classes will vary.