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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 GOLDMAN SACHS TRUST
Central Index Key dei_EntityCentralIndexKey 0000822977
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jul. 29, 2011
Document Effective Date dei_DocumentEffectiveDate Jul. 29, 2011
Prospectus Date rr_ProspectusDate Jul. 29, 2011
GOLDMAN SACHS MUNICIPAL FIXED INCOME FUNDS | Goldman Sachs High Yield Municipal Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs High Yield Municipal Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs High Yield Municipal Fund (the “Fund”) seeks a high level of current income that is exempt from regular federal income tax and may also consider the potential for capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service and/or Class IR 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 (except that the Example incorporates the expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 28% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 28.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, a majority of its total assets measured at the time of purchase (“Total Assets”) in high-yield fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”) that, at the time of purchase, are medium quality or non-investment grade. Medium quality securities are rated BBB or Baa by a nationally recognized statistical rating organization (“NRSRO”), and non-investment grade securities are securities rated BB+, Ba1 or below by a NRSRO. Non-investment grade securities are commonly referred to as “junk bonds.” The Fund may also invest in unrated securities determined by the Investment Adviser to be of comparable quality. The Fund may purchase the securities of issuers that are in default. Under normal market conditions, the Fund invests at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in Municipal Securities, the interest on which is exempt from regular federal income tax (i.e., excluded from gross income for federal income tax purposes).

Under normal circumstances, the Fund may also invest the remainder of its Total Assets in higher grade fixed income securities.

In pursuing its principal investment strategy, the Investment Adviser will assess the relative value in the Municipal Securities market from both a credit and yield curve perspective. Individual securities will be considered for purchase or sale based on credit profile, risk, structure, pricing, and portfolio impact, as well as duration management, restructuring, opportunistic trading and tax loss harvesting. Tax-exempt securities offering the high current income sought by the Fund may be predominantly in the lower rating categories of NRSROs (BB+/Ba1 or lower).

The Fund may concentrate its investments in issuers within the same states or economic sector.

The Fund may invest up to 100% of its Net Assets in private activity bonds, the interest on which (including the Fund’s distributions of such interest) may be a preference item for purposes of the federal alternative minimum tax. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The Fund may invest in securities of other investment companies (specifically, registered money market funds) to manage uninvested cash in the portfolio.

Under normal interest rate conditions, the Fund’s duration is expected to be equal to that of the Barclays Capital Aggregate Municipal Bond Index, plus or minus two years. (Historically, over the last ten years, the duration of the Barclays Capital Aggregate Municipal Bond Index has ranged between 1.7 and 8.4 years.)
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Concentration Risk. If the Fund concentrates its investments in issuers within the same country, state or economic sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if its investments were not so concentrated.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest or repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk. The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests, or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Market Risk. The value of the instruments in which the Fund invests may go up or down in response to the prospects of individual companies, particular industry sectors or governments and/or general economic conditions.

Municipal Securities Risk. 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 particular types of municipal securities (such as general obligation bonds, private activity bonds and moral obligation bonds).

Non-Diversification Risk. The Fund is non-diversified and is permitted to invest more of its assets in fewer issuers than a “diversified” mutual fund. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.

Non-Investment Grade Fixed Income Securities Risk. The Fund may invest in non-investment grade fixed income securities that are considered speculative. Non-investment grade fixed income securities and unrated securities of comparable credit quality are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity. The Fund may purchase the securities of issuers that are in default.

State Specific Risk. The Fund’s investments in municipal obligations of issuers located in a particular state may be adversely affected by political, economic and regulatory developments within that state. Such developments may affect the financial condition of a state’s political subdivisions, agencies, instrumentalities and public authorities and heighten the risks associated with investing in bonds issued by such parties, which could, in turn, adversely affect the Fund’s income, NAV, liquidity, and/or ability to preserve or realize capital appreciation.

Tax Risk. Any proposed or actual changes in income tax rates or the tax-exempt status of interest income from Municipal Securities can significantly affect the demand for and supply, liquidity and marketability of Municipal Securities. Such changes may affect the Fund’s net asset value and ability to acquire and dispose of Municipal Securities at desirable yield and price levels.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Non-Diversification Risk. The Fund is non-diversified and is permitted to invest more of its assets in fewer issuers than a “diversified” mutual fund. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table on the following page provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional and Class IR Shares compare to those of certain broad-based securities market indices and to the High Yield Municipal Fund Composite Index, a custom benchmark comprised of the Barclays Capital Aggregate Municipal Bond Index (40%) and the Barclays Capital High Yield Municipal Bond Index (60%). The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Performance reflects expense limitations in effect.

Because Service Shares have not commenced operations and Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for these share classes. Service and Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Service and Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Service or Class IR Shares have different expenses.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table on the following page provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional and Class IR Shares compare to those of certain broad-based securities market indices and to the High Yield Municipal Fund Composite Index, a custom benchmark comprised of the Barclays Capital Aggregate Municipal Bond Index (40%) and the Barclays Capital High Yield Municipal Bond Index (60%).
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Service Shares have not commenced operations and Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for these share classes.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (INSTITUTIONAL)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Institutional Shares for the six-month period ended June 30, 2011 was 5.80%.

Best Quarter

Q3 ’09 +16.87%

Worst Quarter

Q4 ’08 -22.35%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs High Yield Municipal Fund | Class A Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.93%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.86% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 534
3 Years rr_ExpenseExampleYear03 726
5 Years rr_ExpenseExampleYear05 935
10 Years rr_ExpenseExampleYear10 1,535
Goldman Sachs High Yield Municipal Fund | Class B Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.68%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.61% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 664
3 Years rr_ExpenseExampleYear03 823
5 Years rr_ExpenseExampleYear05 1,106
10 Years rr_ExpenseExampleYear10 1,782
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 164
3 Years rr_ExpenseExampleNoRedemptionYear03 523
5 Years rr_ExpenseExampleNoRedemptionYear05 906
10 Years rr_ExpenseExampleNoRedemptionYear10 1,782
Goldman Sachs High Yield Municipal Fund | Class C Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.68%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.61% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 264
3 Years rr_ExpenseExampleYear03 523
5 Years rr_ExpenseExampleYear05 906
10 Years rr_ExpenseExampleYear10 1,981
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 164
3 Years rr_ExpenseExampleNoRedemptionYear03 523
5 Years rr_ExpenseExampleNoRedemptionYear05 906
10 Years rr_ExpenseExampleNoRedemptionYear10 1,981
Goldman Sachs High Yield Municipal Fund | Institutional Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.06%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.59%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.57% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 58
3 Years rr_ExpenseExampleYear03 187
5 Years rr_ExpenseExampleYear05 327
10 Years rr_ExpenseExampleYear10 736
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 7.72%
2002 rr_AnnualReturn2002 7.94%
2003 rr_AnnualReturn2003 9.17%
2004 rr_AnnualReturn2004 7.04%
2005 rr_AnnualReturn2005 7.72%
2006 rr_AnnualReturn2006 8.17%
2007 rr_AnnualReturn2007 (6.78%)
2008 rr_AnnualReturn2008 (29.79%)
2009 rr_AnnualReturn2009 29.03%
2010 rr_AnnualReturn2010 5.25%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.80%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.87%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.35%)
Goldman Sachs High Yield Municipal Fund | Service Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.56%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.09%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.07% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 109
3 Years rr_ExpenseExampleYear03 345
5 Years rr_ExpenseExampleYear05 599
10 Years rr_ExpenseExampleYear10 1,327
Goldman Sachs High Yield Municipal Fund | Class IR Shares, Goldman Sachs High Yield Municipal Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.53%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.68%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.61% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 62
3 Years rr_ExpenseExampleYear03 211
5 Years rr_ExpenseExampleYear05 372
10 Years rr_ExpenseExampleYear10 840
Goldman Sachs High Yield Municipal Fund | Returns Before Taxes | Class A Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.13%
5 Years rr_AverageAnnualReturnYear05 (2.04%)
10 Years rr_AverageAnnualReturnYear10 2.61%
Since Inception rr_AverageAnnualReturnSinceInception 3.01%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | Returns Before Taxes | Class B Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.10%)
5 Years rr_AverageAnnualReturnYear05 (2.27%)
10 Years rr_AverageAnnualReturnYear10 2.45%
Since Inception rr_AverageAnnualReturnSinceInception 2.86%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | Returns Before Taxes | Class C Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 3.07%
5 Years rr_AverageAnnualReturnYear05 (1.87%)
10 Years rr_AverageAnnualReturnYear10 2.31%
Since Inception rr_AverageAnnualReturnSinceInception 2.68%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.25%
5 Years rr_AverageAnnualReturnYear05 (0.80%)
10 Years rr_AverageAnnualReturnYear10 3.46%
Since Inception rr_AverageAnnualReturnSinceInception 3.84%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 0.10%
5 Years rr_AverageAnnualReturnYear05 (2.07%)
10 Years rr_AverageAnnualReturnYear10 2.58%
Since Inception rr_AverageAnnualReturnSinceInception 2.99%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs High Yield Municipal Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 1.89%
5 Years rr_AverageAnnualReturnYear05 (0.99%)
10 Years rr_AverageAnnualReturnYear10 2.99%
Since Inception rr_AverageAnnualReturnSinceInception 3.34%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2000
Goldman Sachs High Yield Municipal Fund | High Yield Municipal Fund Composite Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel High Yield Municipal Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 5.60%
5 Years rr_AverageAnnualReturnYear05 3.20%
10 Years rr_AverageAnnualReturnYear10 5.01%
Since Inception rr_AverageAnnualReturnSinceInception 5.24%
Goldman Sachs High Yield Municipal Fund | Barclays Capital Aggregate Municipal Bond Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.29%
Goldman Sachs High Yield Municipal Fund | Barclays Capital High Yield Municipal Bond Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Barclays Capital High Yield Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 7.80%
5 Years rr_AverageAnnualReturnYear05 2.48%
10 Years rr_AverageAnnualReturnYear10 5.04%
Since Inception rr_AverageAnnualReturnSinceInception 5.12%
GOLDMAN SACHS MUNICIPAL FIXED INCOME FUNDS | Goldman Sachs Municipal Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Municipal Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Municipal Income Fund (the “Fund”) seeks a high level of current income that is exempt from regular federal income tax, consistent with preservation of capital.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service and/or Class IR 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 (except that the Example incorporates management fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 14% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 14.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal market conditions, at least 80% of its net assets plus any borrowings for investment purposes (measured at time of purchase) (“Net Assets”) in fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”), the interest on which is exempt from regular federal income tax (i.e., excluded from gross income for federal income tax purposes). The Fund may invest up to 100% of its Net Assets in private activity bonds, the interest on which (including the Fund’s distributions of such interest) may be a preference item for purposes of the federal alternative minimum tax. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The Fund may concentrate its investments in issuers within the same states or economic sector.

The team uses a multi-faceted approach when evaluating whether to add or maintain exposure to any individual position. A top-down approach is used to assess broad macro trends while a bottom-up analysis is used to determine relative value between individual securities. Individual securities will be considered for purchase or sale based on credit profile, risk, structure, pricing, and portfolio impact, as well as duration management, restructuring, opportunistic trading and tax loss harvesting.

Under normal interest rate conditions, the Fund’s duration is expected to be equal to that of the Barclays Capital Aggregate Municipal Bond Index, plus or minus one year. (Historically, over the last ten years, the duration of the Barclays Capital Aggregate Municipal Bond Index has ranged between 1.7 and 8.4 years.)
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Concentration Risk. If the Fund concentrates its investments in issuers within the same country, state or economic sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if its investments were not so concentrated.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest or repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk. The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests, or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Market Risk. The value of the instruments in which the Fund invests may go up or down in response to the prospects of individual companies, particular industry sectors or governments and/or general economic conditions.

Municipal Securities Risk. 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 particular types of municipal securities (such as general obligation bonds, private activity bonds and moral obligation bonds).

State Specific Risk. The Fund’s investments in municipal obligations of issuers located in a particular state may be adversely affected by political, economic, and regulatory developments within that state. Such developments may affect the financial condition of a state’s political subdivisions, agencies, instrumentalities and public authorities and heighten the risks associated with investing in bonds issued by such parties, which could, in turn, adversely affect the Fund’s income, NAV, liquidity, and/or ability to preserve or realize capital appreciation.

Tax Risk. Any proposed or actual changes in income tax rates or the tax-exempt status of interest income from Municipal Securities can significantly affect the demand for and supply, liquidity and marketability of Municipal Securities. Such changes may affect the Fund’s net asset value and ability to acquire and dispose of Municipal Securities at desirable yield and price levels.

Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table on the following page provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Performance reflects expense limitations in effect.

Because Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table on the following page provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (INSTITUTIONAL)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Institutional Shares for the six-month period ended June 30, 2011 was 4.29%.

Best Quarter

Q3 ’09 +10.05%

Worst Quarter

Q4 ’08 -5.89%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Municipal Income Fund | Class A Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.98%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.78% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 452
3 Years rr_ExpenseExampleYear03 656
5 Years rr_ExpenseExampleYear05 878
10 Years rr_ExpenseExampleYear10 1,514
Goldman Sachs Municipal Income Fund | Class B Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.73%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.53% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 656
3 Years rr_ExpenseExampleYear03 825
5 Years rr_ExpenseExampleYear05 1,120
10 Years rr_ExpenseExampleYear10 1,825
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 156
3 Years rr_ExpenseExampleNoRedemptionYear03 525
5 Years rr_ExpenseExampleNoRedemptionYear05 920
10 Years rr_ExpenseExampleNoRedemptionYear10 1,825
Goldman Sachs Municipal Income Fund | Class C Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.73%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.53% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 256
3 Years rr_ExpenseExampleYear03 525
5 Years rr_ExpenseExampleYear05 920
10 Years rr_ExpenseExampleYear10 2,024
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 156
3 Years rr_ExpenseExampleNoRedemptionYear03 525
5 Years rr_ExpenseExampleNoRedemptionYear05 920
10 Years rr_ExpenseExampleNoRedemptionYear10 2,024
Goldman Sachs Municipal Income Fund | Institutional Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.09%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.44% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 45
3 Years rr_ExpenseExampleYear03 185
5 Years rr_ExpenseExampleYear05 337
10 Years rr_ExpenseExampleYear10 779
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 5.48%
2002 rr_AnnualReturn2002 8.39%
2003 rr_AnnualReturn2003 6.04%
2004 rr_AnnualReturn2004 5.07%
2005 rr_AnnualReturn2005 4.58%
2006 rr_AnnualReturn2006 5.22%
2007 rr_AnnualReturn2007 (0.30%)
2008 rr_AnnualReturn2008 (10.68%)
2009 rr_AnnualReturn2009 20.13%
2010 rr_AnnualReturn2010 2.81%
Year to Date Return, Label rr_YearToDateReturnLabel total return
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 Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.05%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.89%)
Goldman Sachs Municipal Income Fund | Service Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.59%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.14%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.94% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 96
3 Years rr_ExpenseExampleYear03 342
5 Years rr_ExpenseExampleYear05 608
10 Years rr_ExpenseExampleYear10 1,368
Goldman Sachs Municipal Income Fund | Class IR Shares, Goldman Sachs Municipal Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.20%) [4]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.53% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 54
3 Years rr_ExpenseExampleYear03 213
5 Years rr_ExpenseExampleYear05 386
10 Years rr_ExpenseExampleYear10 888
Goldman Sachs Municipal Income Fund | Returns Before Taxes | Class A Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.38%)
5 Years rr_AverageAnnualReturnYear05 1.82%
10 Years rr_AverageAnnualReturnYear10 3.63%
Since Inception rr_AverageAnnualReturnSinceInception 4.39%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 20, 1993
Goldman Sachs Municipal Income Fund | Returns Before Taxes | Class B Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (3.40%)
5 Years rr_AverageAnnualReturnYear05 1.42%
10 Years rr_AverageAnnualReturnYear10 3.40%
Since Inception rr_AverageAnnualReturnSinceInception 4.22%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Goldman Sachs Municipal Income Fund | Returns Before Taxes | Class C Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.61%
5 Years rr_AverageAnnualReturnYear05 1.83%
10 Years rr_AverageAnnualReturnYear10 3.25%
Since Inception rr_AverageAnnualReturnSinceInception 3.42%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Municipal Income Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.81%
5 Years rr_AverageAnnualReturnYear05 2.95%
10 Years rr_AverageAnnualReturnYear10 4.42%
Since Inception rr_AverageAnnualReturnSinceInception 4.58%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Municipal Income Fund | Returns Before Taxes | Service Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.21%
5 Years rr_AverageAnnualReturnYear05 2.41%
10 Years rr_AverageAnnualReturnYear10 3.90%
Since Inception rr_AverageAnnualReturnSinceInception 4.09%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Municipal Income Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (1.38%)
5 Years rr_AverageAnnualReturnYear05 1.81%
10 Years rr_AverageAnnualReturnYear10 3.63%
Since Inception rr_AverageAnnualReturnSinceInception 4.31%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 20, 1993
Goldman Sachs Municipal Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 0.55%
5 Years rr_AverageAnnualReturnYear05 2.15%
10 Years rr_AverageAnnualReturnYear10 3.72%
Since Inception rr_AverageAnnualReturnSinceInception 4.34%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 20, 1993
Goldman Sachs Municipal Income Fund | Barclays Capital Aggregate Municipal Bond Index | Class A Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.36% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 20, 1993
Goldman Sachs Municipal Income Fund | Barclays Capital Aggregate Municipal Bond Index | Class B Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.39%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Goldman Sachs Municipal Income Fund | Barclays Capital Aggregate Municipal Bond Index | Class C Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.08%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Municipal Income Fund | Barclays Capital Aggregate Municipal Bond Index | Institutional Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.08%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Municipal Income Fund | Barclays Capital Aggregate Municipal Bond Index | Service Shares, Goldman Sachs Municipal Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Aggregate Municipal Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.38%
5 Years rr_AverageAnnualReturnYear05 4.08%
10 Years rr_AverageAnnualReturnYear10 4.83%
Since Inception rr_AverageAnnualReturnSinceInception 5.08%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
GOLDMAN SACHS MUNICIPAL FIXED INCOME FUNDS | Goldman Sachs Short Duration Tax-Free Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Short Duration Tax-Free Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Short Duration Tax-Free Fund (the “Fund”) seeks a high level of current income, consistent with relatively low volatility of principal, that is exempt from regular federal income tax.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 54 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 500,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within three years of purchase, declining from a rate of 2% in the first year to 1% in the third year, and eliminated thereafter. A CDSC of 0.65% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service and/or Class IR 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 (except that the Example incorporates management fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 34% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 34.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal market conditions, at least 80% of its net assets plus any borrowings for investment purposes (measured at time of purchase) (“Net Assets”) in fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”), the interest on which is exempt from regular federal income tax (i.e., excluded from gross income for federal income tax purposes), and is not a tax preference item under the federal alternative minimum tax. Under normal market conditions, the Fund’s investments in private activity bonds and taxable investments will not exceed, in the aggregate, 20% of the Fund’s Net Assets. The interest from private activity bonds (including the Fund’s distributions of such interest) may be a preference item for purposes of the federal alternative minimum tax. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The team uses a multi-faceted approach when evaluating whether to add or maintain exposure to any individual position. A top-down approach is used to assess broad macro trends while a bottom-up analysis is used to determine relative value between individual securities. Individual securities will be considered for purchase or sale based on credit profile, risk, structure, pricing, and portfolio impact, as well as duration management, restructuring, opportunistic trading and tax loss harvesting.

Under normal interest rate conditions, the Fund’s duration is expected to be equal to that of the Barclays Capital 1-3 Year Municipal Bond Index, plus or minus 0.5 years. (Historically, over the last ten years, the duration of the Barclays Capital 1-3 Year Municipal Bond Index has ranged between 2.1 and 2.3 years.) The reference to “Short-Duration” in the Fund’s name refers to this duration.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Concentration Risk. If the Fund concentrates its investments in issuers within the same country, state or economic sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if its investments were not so concentrated.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest or repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk. The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests, or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Market Risk. The value of the instruments in which the Fund invests may go up or down in response to the prospects of individual companies, particular industry sectors or governments and/or general economic conditions.

Municipal Securities Risk. 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 particular types of municipal securities (such as general obligation bonds, private activity bonds and moral obligation bonds).

State Specific Risk. The Fund’s investments in municipal obligations of issuers located in a particular state may be adversely affected by political, economic and regulatory developments within that state. Such developments may affect the financial condition of a state’s political subdivisions, agencies, instrumentalities and public authorities and heighten the risks associated with investing in bonds issued by such parties, which could, in turn, adversely affect the Fund’s income, NAV, liquidity, and/or ability to preserve or realize capital appreciation.

Tax Risk. Any proposed or actual changes in income tax rates or the tax-exempt status of interest income from Municipal Securities can significantly affect the demand for and supply, liquidity and marketability of Municipal Securities. Such changes may affect the Fund’s net asset value and ability to acquire and dispose of Municipal Securities at desirable yield and price levels.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table at right provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Performance reflects expense limitations in effect.

Because Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table at right provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Institutional Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares have not had a full calendar year of operations as of the date of this Prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (INSTITUTIONAL)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Institutional Shares for the six-month period ended June 30, 2011 was 2.05%

Best Quarter

Q2 ’02 +2.58%

Worst Quarter

Q2 ’04 -0.93%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Class A Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 1.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.77%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.04%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.73% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 223
3 Years rr_ExpenseExampleYear03 388
5 Years rr_ExpenseExampleYear05 568
10 Years rr_ExpenseExampleYear10 1,086
Class B Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 2.00% [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.52%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.19%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.33% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 335
3 Years rr_ExpenseExampleYear03 562
5 Years rr_ExpenseExampleYear05 811
10 Years rr_ExpenseExampleYear10 1,593
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 135
3 Years rr_ExpenseExampleNoRedemptionYear03 462
5 Years rr_ExpenseExampleNoRedemptionYear05 811
10 Years rr_ExpenseExampleNoRedemptionYear10 1,593
Class C Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 0.65% [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.52%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.39%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.13% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 180
3 Years rr_ExpenseExampleYear03 442
5 Years rr_ExpenseExampleYear05 792
10 Years rr_ExpenseExampleYear10 1,779
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 115
3 Years rr_ExpenseExampleNoRedemptionYear03 442
5 Years rr_ExpenseExampleNoRedemptionYear05 792
10 Years rr_ExpenseExampleNoRedemptionYear10 1,779
Institutional Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.06%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.04%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.39% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 40
3 Years rr_ExpenseExampleYear03 134
5 Years rr_ExpenseExampleYear05 237
10 Years rr_ExpenseExampleYear10 538
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 5.54%
2002 rr_AnnualReturn2002 5.82%
2003 rr_AnnualReturn2003 2.25%
2004 rr_AnnualReturn2004 1.42%
2005 rr_AnnualReturn2005 1.27%
2006 rr_AnnualReturn2006 3.44%
2007 rr_AnnualReturn2007 3.75%
2008 rr_AnnualReturn2008 2.67%
2009 rr_AnnualReturn2009 6.19%
2010 rr_AnnualReturn2010 1.91%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.05%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2002
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.58%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.93%)
Service Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.56%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.06%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.93%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.04%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.89% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 91
3 Years rr_ExpenseExampleYear03 292
5 Years rr_ExpenseExampleYear05 511
10 Years rr_ExpenseExampleYear10 1,139
Class IR Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [6]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.37%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.52%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.04%) [7]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.48% [3]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 49
3 Years rr_ExpenseExampleYear03 163
5 Years rr_ExpenseExampleYear05 287
10 Years rr_ExpenseExampleYear10 649
Class A Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (0.06%)
5 Years rr_AverageAnnualReturnYear05 2.88%
10 Years rr_AverageAnnualReturnYear10 2.87%
Since Inception rr_AverageAnnualReturnSinceInception 3.17%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class B Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.16%)
5 Years rr_AverageAnnualReturnYear05 2.58%
10 Years rr_AverageAnnualReturnYear10 2.51%
Since Inception rr_AverageAnnualReturnSinceInception 2.92%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class C Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.14%
5 Years rr_AverageAnnualReturnYear05 2.45%
10 Years rr_AverageAnnualReturnYear10 2.27%
Since Inception rr_AverageAnnualReturnSinceInception 2.43%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Institutional Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.91%
5 Years rr_AverageAnnualReturnYear05 3.58%
10 Years rr_AverageAnnualReturnYear10 3.41%
Since Inception rr_AverageAnnualReturnSinceInception 3.79%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 01, 1992
Service Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.30%
5 Years rr_AverageAnnualReturnYear05 3.04%
10 Years rr_AverageAnnualReturnYear10 2.91%
Since Inception rr_AverageAnnualReturnSinceInception 3.30%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 20, 1994
Class A Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (0.09%)
5 Years rr_AverageAnnualReturnYear05 2.86%
10 Years rr_AverageAnnualReturnYear10 2.86%
Since Inception rr_AverageAnnualReturnSinceInception 3.16%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class A Shares, Goldman Sachs Short Duration Tax-Free Fund | Goldman Sachs Short Duration Tax-Free Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 0.51%
5 Years rr_AverageAnnualReturnYear05 2.83%
10 Years rr_AverageAnnualReturnYear10 2.82%
Since Inception rr_AverageAnnualReturnSinceInception 3.13%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class A Shares, Goldman Sachs Short Duration Tax-Free Fund | Barclays Capital Municipal 1-3 Year Blend Index | Goldman Sachs Short Duration Tax-Free Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Municipal 1-3 Year Blend Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.61%
5 Years rr_AverageAnnualReturnYear05 3.94%
10 Years rr_AverageAnnualReturnYear10 3.66%
Since Inception rr_AverageAnnualReturnSinceInception 3.95%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class B Shares, Goldman Sachs Short Duration Tax-Free Fund | Barclays Capital Municipal 1-3 Year Blend Index | Goldman Sachs Short Duration Tax-Free Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Municipal 1-3 Year Blend Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.61%
5 Years rr_AverageAnnualReturnYear05 3.94%
10 Years rr_AverageAnnualReturnYear10 3.66%
Since Inception rr_AverageAnnualReturnSinceInception 3.95%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Class C Shares, Goldman Sachs Short Duration Tax-Free Fund | Barclays Capital Municipal 1-3 Year Blend Index | Goldman Sachs Short Duration Tax-Free Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Municipal 1-3 Year Blend Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.61%
5 Years rr_AverageAnnualReturnYear05 3.94%
10 Years rr_AverageAnnualReturnYear10 3.66%
Since Inception rr_AverageAnnualReturnSinceInception 3.89% [8]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Institutional Shares, Goldman Sachs Short Duration Tax-Free Fund | Barclays Capital Municipal 1-3 Year Blend Index | Goldman Sachs Short Duration Tax-Free Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Municipal 1-3 Year Blend Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.61%
5 Years rr_AverageAnnualReturnYear05 3.94%
10 Years rr_AverageAnnualReturnYear10 3.66%
Since Inception rr_AverageAnnualReturnSinceInception  
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 01, 1992
Service Shares, Goldman Sachs Short Duration Tax-Free Fund | Barclays Capital Municipal 1-3 Year Blend Index | Goldman Sachs Short Duration Tax-Free Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Municipal 1-3 Year Blend Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.61%
5 Years rr_AverageAnnualReturnYear05 3.94%
10 Years rr_AverageAnnualReturnYear10 3.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.16% [9]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 20, 1994
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs Emerging Markets Debt Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Emerging Markets Debt Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Emerging Markets Debt Fund (the “Fund”) seeks a high level of total return consisting of income and capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class C, Institutional and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class C, Institutional and/or Class IR 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 (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 116% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 116.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in fixed income securities of issuers located in emerging countries. The Investment Adviser may consider classifications by the World Bank, the International Finance Corporation or the United Nations (and its agencies) in determining whether a country is emerging or developed. Currently, emerging countries include, among others, most African, Asian, Eastern European, Middle Eastern, South and Central American nations. The Investment Adviser currently intends that the Fund’s investment focus will be in the following emerging countries: Argentina, Brazil, Colombia, Ecuador, Egypt, Malaysia, Mexico, Peru, The Philippines, Poland, Russia, South Africa, Turkey, Ukraine and Venezuela, as well as other emerging countries to the extent that foreign investors are permitted by applicable law to make such investments. The Fund may invest in all types of foreign and emerging country fixed income securities. Foreign securities include securities of issuers located outside the U.S. or securities quoted or denominated in a currency other than the U.S. Dollar.

The countries in which the Fund invests may have sovereign ratings that are below investment grade or are unrated. Moreover, to the extent the Fund invests in corporate or other privately issued debt obligations, many of the issuers of such obligations will be smaller companies with stock market capitalizations of $1 billion or less at the time of investment. Securities of these issuers may be rated below investment grade or unrated. Although a majority of the Fund’s assets may be denominated in U.S. Dollars, the Fund may invest in securities denominated in any currency and may be subject to the risk of adverse currency fluctuations. Additionally, the Fund intends to use structured securities or derivatives, including but not limited to credit linked notes, financial future contracts, forward contracts and swap contracts to gain exposure to certain countries or currencies.

The Fund may invest in securities without regard to credit rating. The Fund’s target duration under normal interest rate conditions is that of the J.P. Morgan EMBI Global Diversified Index, plus or minus 2 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of this Index has ranged between 4.90 and 7.30 years.

The Fund’s portfolio managers seek to build a portfolio consisting of their “best ideas” across the emerging markets debt market consistent with the Fund’s overall risk budget and the views of the Investment Adviser’s Global Fixed Income top-down teams. As market conditions change, the volatility and attractiveness of sectors, securities and strategies can change as well. To optimize the Fund’s risk/return potential within its long-term risk budget, the portfolio managers may dynamically adjust the mix of top-down and bottom-up strategies in the Fund’s portfolio.

THE FUND IS “NON-DIVERSIFIED” UNDER THE INVESTMENT COMPANY ACT OF 1940, AS AMENDED (THE “INVESTMENT COMPANY ACT”), AND MAY INVEST MORE OF ITS ASSETS IN FEWER ISSUERS THAN “DIVERSIFIED” MUTUAL FUNDS.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

• Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

• Emerging Countries Risk—The securities markets of most Central and South American, African, Middle Eastern, Asian, Eastern European and other emerging countries are less liquid, are especially subject to greater price volatility, have smaller market capitalizations, have more or less government regulation and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

• Foreign Risk—Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. Foreign risks may be more pronounced when the Fund invests in issuers located in emerging countries.

• Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

• Liquidity Risk—The Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

• Non-Diversification Risk—The Fund is non-diversified, meaning that it is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.

• Non-Investment Grade Fixed Income Securities Risk—Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity.

• Sovereign Risk—An issuer of non-U.S. sovereign debt, or the governmental authorities that control the repayment of the debt, may be unable or unwilling to repay the principal or interest when due. This may result from political or social factors, the general economic environment of a country, levels of foreign debt or foreign currency exchange rates.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Non-Diversification Risk—The Fund is non-diversified, meaning that it is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C and Institutional Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Because Class IR Shares have not had a full calendar year of performance as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C and Institutional Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares have not had a full calendar year of performance as of the date of this Prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six month period ended June 30, 2011 was 4.15%

Best Quarter

Q2 ‘09 +16.16%

Worst Quarter

Q4 ‘08 -13.18%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class C and Institutional Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class C and Institutional Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Emerging Markets Debt Fund | Class A Shares, Goldman Sachs Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [11]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.22%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 569
3 Years rr_ExpenseExampleYear03 834
5 Years rr_ExpenseExampleYear05 1,119
10 Years rr_ExpenseExampleYear10 1,931
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2004 rr_AnnualReturn2004 15.58%
2005 rr_AnnualReturn2005 15.39%
2006 rr_AnnualReturn2006 11.07%
2007 rr_AnnualReturn2007 5.36%
2008 rr_AnnualReturn2008 (19.59%)
2009 rr_AnnualReturn2009 40.27%
2010 rr_AnnualReturn2010 13.51%
Year to Date Return, Label rr_YearToDateReturnLabel total return
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 Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.16%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (13.18%)
Goldman Sachs Emerging Markets Debt Fund | Class C Shares, Goldman Sachs Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.04%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [11]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.97%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 300
3 Years rr_ExpenseExampleYear03 633
5 Years rr_ExpenseExampleYear05 1,092
10 Years rr_ExpenseExampleYear10 2,363
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 200
3 Years rr_ExpenseExampleNoRedemptionYear03 633
5 Years rr_ExpenseExampleNoRedemptionYear05 1,092
10 Years rr_ExpenseExampleNoRedemptionYear10 2,363
Goldman Sachs Emerging Markets Debt Fund | Institutional Shares, Goldman Sachs Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.95%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [11]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.88%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 90
3 Years rr_ExpenseExampleYear03 296
5 Years rr_ExpenseExampleYear05 519
10 Years rr_ExpenseExampleYear10 1,160
Goldman Sachs Emerging Markets Debt Fund | Class IR Shares, Goldman Sachs Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.80%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.04%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.07%) [11]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.97%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 99
3 Years rr_ExpenseExampleYear03 324
5 Years rr_ExpenseExampleYear05 567
10 Years rr_ExpenseExampleYear10 1,265
Goldman Sachs Emerging Markets Debt Fund | Class A Shares, Goldman Sachs Emerging Markets Debt Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 8.44%
5 Years rr_AverageAnnualReturnYear05 7.42%
Since Inception rr_AverageAnnualReturnSinceInception 10.31%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
Goldman Sachs Emerging Markets Debt Fund | Class C Shares, Goldman Sachs Emerging Markets Debt Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 11.61%
5 Years rr_AverageAnnualReturnYear05  
Since Inception rr_AverageAnnualReturnSinceInception 7.62%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 29, 2006
Goldman Sachs Emerging Markets Debt Fund | Institutional Shares, Goldman Sachs Emerging Markets Debt Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 13.97%
5 Years rr_AverageAnnualReturnYear05 8.79%
Since Inception rr_AverageAnnualReturnSinceInception 11.42%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
Goldman Sachs Emerging Markets Debt Fund | Class A Shares, Goldman Sachs Emerging Markets Debt Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 6.22%
5 Years rr_AverageAnnualReturnYear05 4.99%
Since Inception rr_AverageAnnualReturnSinceInception 7.50%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
Goldman Sachs Emerging Markets Debt Fund | Class A Shares, Goldman Sachs Emerging Markets Debt Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 5.45%
5 Years rr_AverageAnnualReturnYear05 4.88%
Since Inception rr_AverageAnnualReturnSinceInception 7.20%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
Goldman Sachs Emerging Markets Debt Fund | J.P. Morgan EMBI Global Diversified Index | Class A Shares, Goldman Sachs Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel J.P. Morgan EMBI Global Diversified Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 12.24%
5 Years rr_AverageAnnualReturnYear05 8.37%
Since Inception rr_AverageAnnualReturnSinceInception 9.73%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
Goldman Sachs Emerging Markets Debt Fund | J.P. Morgan EMBI Global Diversified Index | Class C Shares, Goldman Sachs Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel J.P. Morgan EMBI Global Diversified Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 12.24%
5 Years rr_AverageAnnualReturnYear05  
Since Inception rr_AverageAnnualReturnSinceInception 8.44%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 29, 2006
Goldman Sachs Emerging Markets Debt Fund | J.P. Morgan EMBI Global Diversified Index | Institutional Shares, Goldman Sachs Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel J.P. Morgan EMBI Global Diversified Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 12.24%
5 Years rr_AverageAnnualReturnYear05 8.37%
Since Inception rr_AverageAnnualReturnSinceInception 9.73%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2003
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs High Yield Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs High Yield Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs High Yield Fund (the “Fund”) seeks a high level of current income and may also consider the potential for capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge (“CDSC”) is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R 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 (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 46% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 46.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in high-yield, fixed income securities that, at the time of purchase, are non-investment grade securities. Non-investment grade securities are securities rated BB+, Ba1 or below by a nationally recognized statistical rating organization (“NRSRO”), or, if unrated, determined by the Investment Adviser to be of comparable quality, and are commonly referred to as “junk bonds.”

The Fund may invest up to 25% of its total assets in obligations of domestic and foreign issuers which are denominated in currencies other than the U.S. dollar and in securities of issuers located in emerging countries denominated in any currency. However, to the extent that the Investment Adviser has entered into transactions that are intended to hedge the Fund's position in a non-dollar denominated obligation against currency risk, such obligation will not be counted when calculating compliance with the 25% limitation on obligations in non-U.S. currency.

Under normal market conditions, the Fund may invest up to 20% of its Net Assets in investment grade fixed income securities, including securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”).

The Fund may invest in derivatives, including credit default swap indices (or CDX), for hedging purposes or to seek to increase total return.

The Fund's target duration under normal interest rate conditions is the duration of the Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped, plus or minus 2.5 years (the Fund's duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of this Index has ranged between 4.00 and 4.70 years. The Fund may invest in all types of fixed income securities.

The Fund's portfolio managers seek to build a portfolio consisting of their “best ideas” across the high yield securities market consistent with the Fund's overall risk budget and the views of the Investment Adviser's Global Fixed Income top-down teams. As market conditions change, the volatility and attractiveness of sectors, securities and strategies can change as well. To optimize the Fund's risk/return potential within its long-term risk budget, the portfolio managers may dynamically adjust the mix of top-down and bottom-up strategies in the Fund's portfolio.

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

• Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

• Foreign Risk—Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in issuers located in emerging markets, these risks may be more pronounced.

• Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

• Liquidity Risk—The Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

• Non-Investment Grade Fixed Income Securities Risk—Non-investment grade fixed income securities and unrated securities of comparable credit quality are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class R and Class IR Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class R and Class IR Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six month period ended June 30, 2011 was 3.89%

Best Quarter

Q2 ‘09 +18.40%

Worst Quarter

Q4 ‘08 -18.79%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs High Yield Fund | Class A Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.06%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.05%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 552
3 Years rr_ExpenseExampleYear03 771
5 Years rr_ExpenseExampleYear05 1,008
10 Years rr_ExpenseExampleYear10 1,685
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 5.47%
2002 rr_AnnualReturn2002 (0.59%)
2003 rr_AnnualReturn2003 28.30%
2004 rr_AnnualReturn2004 12.94%
2005 rr_AnnualReturn2005 3.59%
2006 rr_AnnualReturn2006 11.29%
2007 rr_AnnualReturn2007 1.37%
2008 rr_AnnualReturn2008 (27.50%)
2009 rr_AnnualReturn2009 50.03%
2010 rr_AnnualReturn2010 13.33%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.89%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.40%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (18.79%)
Goldman Sachs High Yield Fund | Class B Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.81%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.80%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 683
3 Years rr_ExpenseExampleYear03 868
5 Years rr_ExpenseExampleYear05 1,179
10 Years rr_ExpenseExampleYear10 1,929
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 183
3 Years rr_ExpenseExampleNoRedemptionYear03 568
5 Years rr_ExpenseExampleNoRedemptionYear05 979
10 Years rr_ExpenseExampleNoRedemptionYear10 1,929
Goldman Sachs High Yield Fund | Class C Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.81%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.80%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 283
3 Years rr_ExpenseExampleYear03 568
5 Years rr_ExpenseExampleYear05 979
10 Years rr_ExpenseExampleYear10 2,126
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 183
3 Years rr_ExpenseExampleNoRedemptionYear03 568
5 Years rr_ExpenseExampleNoRedemptionYear05 979
10 Years rr_ExpenseExampleNoRedemptionYear10 2,126
Goldman Sachs High Yield Fund | Institutional Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.07%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.07%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.72%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.71%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 73
3 Years rr_ExpenseExampleYear03 229
5 Years rr_ExpenseExampleYear05 400
10 Years rr_ExpenseExampleYear10 894
Goldman Sachs High Yield Fund | Service Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.57%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.07%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.22%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.21%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 123
3 Years rr_ExpenseExampleYear03 386
5 Years rr_ExpenseExampleYear05 669
10 Years rr_ExpenseExampleYear10 1,476
Goldman Sachs High Yield Fund | Class IR Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.80%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 82
3 Years rr_ExpenseExampleYear03 258
5 Years rr_ExpenseExampleYear05 449
10 Years rr_ExpenseExampleYear10 1,001
Goldman Sachs High Yield Fund | Class R Shares, Goldman Sachs High Yield Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.31%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.01%) [12]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.30%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 132
3 Years rr_ExpenseExampleYear03 414
5 Years rr_ExpenseExampleYear05 717
10 Years rr_ExpenseExampleYear10 1,578
Goldman Sachs High Yield Fund | Returns Before Taxes | Class A Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 8.18%
5 Years rr_AverageAnnualReturnYear05 5.82%
10 Years rr_AverageAnnualReturnYear10 7.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.18%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Returns Before Taxes | Class B Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.12%
5 Years rr_AverageAnnualReturnYear05 5.57%
10 Years rr_AverageAnnualReturnYear10 7.48%
Since Inception rr_AverageAnnualReturnSinceInception 6.07%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Returns Before Taxes | Class C Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 11.25%
5 Years rr_AverageAnnualReturnYear05 6.00%
10 Years rr_AverageAnnualReturnYear10 7.33%
Since Inception rr_AverageAnnualReturnSinceInception 5.79%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs High Yield Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 13.69%
5 Years rr_AverageAnnualReturnYear05 7.19%
10 Years rr_AverageAnnualReturnYear10 8.54%
Since Inception rr_AverageAnnualReturnSinceInception 6.95%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Returns Before Taxes | Service Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 13.00%
5 Years rr_AverageAnnualReturnYear05 6.64%
10 Years rr_AverageAnnualReturnYear10 7.97%
Since Inception rr_AverageAnnualReturnSinceInception 6.40%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Returns Before Taxes | Class IR Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 13.45%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 7.29%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs High Yield Fund | Returns | Class R Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Returns
1 Year rr_AverageAnnualReturnYear01 13.05%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 6.76%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs High Yield Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 5.35%
5 Years rr_AverageAnnualReturnYear05 2.87%
10 Years rr_AverageAnnualReturnYear10 4.40%
Since Inception rr_AverageAnnualReturnSinceInception 2.86%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 5.21%
5 Years rr_AverageAnnualReturnYear05 3.16%
10 Years rr_AverageAnnualReturnYear10 4.52%
Since Inception rr_AverageAnnualReturnSinceInception 3.12%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Class A Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05 8.90%
10 Years rr_AverageAnnualReturnYear10 9.01%
Since Inception rr_AverageAnnualReturnSinceInception 6.79%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Class B Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05 8.90%
10 Years rr_AverageAnnualReturnYear10 9.01%
Since Inception rr_AverageAnnualReturnSinceInception 6.79%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Class C Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05 8.90%
10 Years rr_AverageAnnualReturnYear10 9.01%
Since Inception rr_AverageAnnualReturnSinceInception 6.86% [8]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Institutional Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05 8.90%
10 Years rr_AverageAnnualReturnYear10 9.01%
Since Inception rr_AverageAnnualReturnSinceInception 6.79%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Service Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05 8.90%
10 Years rr_AverageAnnualReturnYear10 9.01%
Since Inception rr_AverageAnnualReturnSinceInception 6.79%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1997
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Class IR Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 10.40%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs High Yield Fund | Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped | Class R Shares, Goldman Sachs High Yield Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Corporate High Yield Bond Index, 2% Issuer Capped
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 14.94%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 10.40%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs High Yield Floating Rate Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs High Yield Floating Rate Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs High Yield Floating Rate Fund (the “Fund”) seeks a high level of current income.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge (“CDSC”) of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates "Other Expenses" are based on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class C, Institutional, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class C, Institutional, Class IR and/or Class R 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 (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but will be reflected in the Fund’s performance.
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in domestic or foreign floating rate loans and other floating or variable rate obligations rated below investment grade. Non-investment grade obligations are those rated BB+, Ba1 or below by a nationally recognized statistical rating organization (“NRSRO”), or, if unrated, determined by the Investment Adviser to be of comparable quality, and are commonly referred to as “junk bonds”.

The Fund’s investments in floating and variable rate obligations may include, without limitation, senior secured loans (including assignments and participations), second lien loans, senior unsecured and subordinated loans, senior and subordinated corporate debt obligations (such as bonds, debentures, notes and commercial paper), debt issued by governments, their agencies and instrumentalities, and debt issued by central banks. The Fund may invest indirectly in loans by purchasing participations or sub-participations from financial institutions. Participations and sub-participations represent the right to receive a portion of the principal of, and all of the interest relating to such portion of, the applicable loan. The Fund expects to invest principally in the U.S. loan market and, to a lesser extent, in the European loan market. The Fund may also invest in other loan markets, although it does not currently intend to do so.

Under normal conditions, the Fund may invest up to 20% of its Net Assets in fixed income instruments, regardless of rating, including fixed rate corporate bonds, government bonds, convertible debt obligations, and mezzanine fixed income instruments. The Fund may also invest in floating or variable rate instruments that are rated investment grade and in preferred stock, repurchase agreements and cash securities.

The Fund may also invest in derivative instruments. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund’s investments in derivatives may include credit default swaps on credit and loan indices and forward contracts, among others. The Fund may use currency management techniques, such as forward foreign currency contracts, for investment or hedging purposes. Derivatives that provide exposure to floating or variable rate loans or obligations rated below investment grade are counted towards the Fund’s 80% policy.

The Fund’s target duration under normal interest rate conditions is less than 0.5 years (the Fund’s duration approximates its price sensitivity to changes in interest rates). The Fund’s investments in floating rate obligations will generally have short to intermediate maturities (approximately 5-7 years).

The Fund’s investments are selected using a bottom-up analysis that incorporates fundamental research, a focus on market conditions and pricing trends, quantitative research, and news or market events. The selection of individual investments is based on the overall risk and return profile of the investment taking into account liquidity, structural complexity, cash flow uncertainty and downside potential. Research analysts and portfolio managers systematically assess portfolio positions, taking into consideration, among other factors, broader macroeconomic conditions and industry and company-specific financial performance and outlook. Based upon this analysis, the Investment Adviser will sell positions determined to be overvalued and reposition the portfolio in more attractive investment opportunities on a relative basis given the current climate.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Conflict of Interest Risk—Affiliates of the Investment Adviser may participate in the primary and secondary market for loan obligations. Because of limitations imposed by applicable law, the presence of the Investment Adviser’s affiliates in the loan obligations market may restrict the Fund’s ability to acquire some loan obligations or affect the timing or price of such acquisitions. Also, because the Investment Adviser may wish to invest in the publicly traded securities of a borrower, it may not have access to material non-public information regarding the borrower to which other lenders have access.

• Credit/Default Risk—An issuer or guarantor of investments held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of investments may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade investments, these risks may be more pronounced.

• Derivatives Risk—Loss may result from the Fund’s investments in options, futures, swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

• Foreign Risk—Foreign investments may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of instruments denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent the Fund also invests in securities or obligations of issuers located in emerging markets, these risks may be more pronounced.

• Liquidity Risk—The Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell investments at an unfavorable time and/or under unfavorable conditions.

• Loan Obligations Risk—Loan obligations are subject to the credit risk of nonpayment of principal or interest. Substantial increases in interest rates may cause an increase in loan obligation defaults. Although a loan obligation may be fully collateralized at the time of acquisition, the collateral may decline in value, be relatively illiquid, or lose all or substantially all of its value subsequent to investment. Many loan obligations are subject to legal or contractual restrictions on resale and may be relatively illiquid and difficult to value. This will also have an adverse impact on the Fund’s ability to dispose of particular loan obligations or loan participations when necessary to meet the Fund’s liquidity needs or when necessary in response to a specific economic event, such as a decline in the credit quality of the borrower. For additional information, see the “How Are Redemption Proceeds Paid?” section of the Shareholder Guide in this Prospectus.

• Loan Participation Risk—The Fund may not always have direct recourse against a borrower if the borrower fails to pay scheduled principal and interest. Where the Fund lacks direct recourse, the Fund will look to an agent for the lenders to enforce appropriate credit remedies against the borrower. The Fund may be subject to greater delays, expenses and risks than would have been involved if the Fund had purchased a direct obligation of the borrower. Under the terms of certain loan participations, the Fund may be regarded as a creditor of the agent lender rather than of the underlying borrower, and therefore may be subject to the risk that the agent lender may become insolvent.

• Market Risk—The value of the instruments in which the Fund invests may go up or down in response to the prospects of individual companies, particular industry sectors or governments and/or general economic conditions.

• Non-Investment Grade Investments Risk—Non-investment grade investments and unrated investments of comparable credit quality are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These investments may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the non-investment grade markets generally and less secondary market liquidity. The Fund may purchase the securities or obligations of issuers that are in default.

• Second Lien Loans Risk—Second Lien Loans generally are subject to similar risks as Senior Loans. Because Second Lien Loans are subordinated or unsecured and thus lower in priority of payment to Senior Loans, they are subject to the additional risk that the cash flow of the borrower and property securing the loan or debt, if any, may be insufficient to meet scheduled payments after giving effect to the senior secured obligations of the borrower. This risk is generally higher for subordinated unsecured loans or debt, which are not backed by a security interest in any specific collateral. Second Lien Loans generally have greater price volatility than Senior Loans and may be less liquid. There is also a possibility that originators will not be able to sell participations in Second Lien Loans, which would create greater credit risk exposure for the holders of such loans. Second Lien Loans share the same risks as other below investment grade securities.

• Senior Loan Risk—Senior Loans hold the most senior position in the capital structure of a business entity, and are typically secured with specific collateral and have a claim on the assets and/or stock of the borrower that is senior to that held by subordinated debt holders and stockholders of the borrower. Senior Loans are usually rated below investment grade, and are subject to similar risks, such as credit risk, as below investment grade securities. However, Senior Loans are typically senior and secured in contrast to other below investment grade securities, which are often subordinated and unsecured. There is less readily available, reliable information about most Senior Loans than is the case for many other types of securities, and the Investment Adviser relies primarily on its own evaluation of a borrower’s credit quality rather than on any available independent sources. The ability of the Fund to realize full value in the event of the need to sell a Senior Loan may be impaired by the lack of an active trading market for certain senior loans or adverse market conditions limiting liquidity. To the extent that a secondary market does exist for certain Senior Loans, the market may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods. Although Senior Loans in which the Fund will invest generally will be secured by specific collateral, there can be no assurance that liquidation of such collateral would satisfy the borrower’s obligation in the event of non-payment of scheduled interest or principal or that such collateral could be readily liquidated. In the event of the bankruptcy of a borrower, the Fund could experience delays or limitations with respect to its ability to realize the benefits of the collateral securing a Senior Loan. Moreover, any specific collateral used to secure a Senior Loan may decline in value or become illiquid, which would adversely affect the Senior Loan’s value. Uncollateralized Senior Loans involve a greater risk of loss. Some Senior Loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the Senior Loans to presently existing or future indebtedness of the borrower or take other action detrimental to lenders, including the Fund, such as invalidation of Senior Loans.

• U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and Federal Home Loan Banks chartered or sponsored by Acts of Congress are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by the Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The Fund commenced operations on March 31, 2011. No performance information is provided because the Fund has less than one calendar year of performance 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. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess The Fund commenced operations on March 31, 2011. No performance information is provided because the Fund has less than one calendar year of performance as of the date of this Prospectus.
Goldman Sachs High Yield Floating Rate Fund | Class A Shares, Goldman Sachs High Yield Floating Rate Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.25% [13]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.10%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [14]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.08%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 333
3 Years rr_ExpenseExampleYear03 565
Goldman Sachs High Yield Floating Rate Fund | Class C Shares, Goldman Sachs High Yield Floating Rate Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.25% [13]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.85%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [14]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.83%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 286
3 Years rr_ExpenseExampleYear03 580
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 186
3 Years rr_ExpenseExampleNoRedemptionYear03 580
Goldman Sachs High Yield Floating Rate Fund | Institutional Shares, Goldman Sachs High Yield Floating Rate Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.16% [13]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.76%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [14]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.74%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 76
3 Years rr_ExpenseExampleYear03 241
Goldman Sachs High Yield Floating Rate Fund | Class IR Shares, Goldman Sachs High Yield Floating Rate Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.25% [13]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.85%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [14]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.83%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 85
3 Years rr_ExpenseExampleYear03 269
Goldman Sachs High Yield Floating Rate Fund | Class R Shares, Goldman Sachs High Yield Floating Rate Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.25% [13]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.02%) [14]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.33%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 135
3 Years rr_ExpenseExampleYear03 426
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs Investment Grade Credit Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Investment Grade Credit Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Investment Grade Credit Fund (the “Fund”) seeks a high level of total return consisting of capital appreciation and income that exceeds the total return of the Barclays Capital U.S. Credit Index.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates The "Other Expenses" for Class IR Shares are based on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The "Annual Fund Operating Expenses" of the Fund's Class A and Institutional Shares have been restated to reflect current fees.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Class IR and/or Separate Account Institutional Shares of the Fund for the time periods indicated and then redeem all of your Class A, Institutional, Class IR and/or Separate Account Institutional 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 (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 100% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 100.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in investment grade fixed income securities. Investment grade securities are securities that are rated at the time of purchase at least BBB– by Standard & Poor’s Rating Group (“Standard & Poor’s”), at least Baa3 by Moody’s Investors Service, Inc. (“Moody’s”), or have a comparable rating by another nationally recognized statistical rating organization (“NRSRO”) or, if unrated, are determined by the Investment Adviser to be of comparable quality. The Fund may invest in corporate securities, securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), securities representing direct or indirect interests in or that are collateralized by adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”), asset-backed securities, and fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”). Although the Fund may invest without limit in foreign securities, the Fund’s investments in non-U.S. dollar denominated obligations (hedged or unhedged against currency risk) will not exceed 25% of its total assets at the time of investment, and 10% of the Fund’s total assets may be invested in obligations of emerging countries. Additionally, exposure to non-U.S. currencies (unhedged against currency risk) will not exceed 25% of the Fund’s total assets. In pursuing its investment objective, the Fund uses the Barclays Capital U.S. Credit Index as its performance benchmark, but the Fund will not attempt to replicate the Barclays Capital U.S. Credit Index. The Fund may, therefore, invest in securities that are not included in the Barclays Capital U.S. Credit Index.

The Fund’s target duration under normal interest rate conditions is the duration of the Barclays Capital U.S. Credit Index, plus or minus one year (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of this Index has ranged between 5.00 and 6.50 years.

The Fund’s portfolio managers seek to build a portfolio consisting of their “best ideas” across the investment grade credit market consistent with the Fund’s overall risk budget and the views of the Investment Adviser’s Global Fixed Income top-down teams. As market conditions change, the volatility and attractiveness of sectors, securities and strategies can change as well. To optimize the Fund’s risk/return potential within its long-term risk budget, the portfolio managers may dynamically adjust the mix of top-down and bottom-up strategies in the Fund’s portfolio.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

• Foreign Risk—Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in issuers located in emerging markets, these risks may be more pronounced.

• Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

• U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by the Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional and Separate Account Institutional Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Because Class IR Shares have not commenced operations as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional and Separate Account Institutional Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six month period ended June 30, 2011 was 4.21%

Best Quarter

Q2 ‘09 +10.01%

Worst Quarter

Q3 ‘08 -8.21%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Institutional and Separate Account Institutional Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Institutional and Separate Account Institutional Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Investment Grade Credit Fund | Class A Shares, Goldman Sachs Investment Grade Credit Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.19% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.84% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.71% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 445
3 Years rr_ExpenseExampleYear03 621
5 Years rr_ExpenseExampleYear05 811
10 Years rr_ExpenseExampleYear10 1,362
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2004 rr_AnnualReturn2004 4.98%
2005 rr_AnnualReturn2005 1.87%
2006 rr_AnnualReturn2006 3.75%
2007 rr_AnnualReturn2007 4.80%
2008 rr_AnnualReturn2008 (13.78%)
2009 rr_AnnualReturn2009 18.77%
2010 rr_AnnualReturn2010 9.39%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.21%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.21%)
Goldman Sachs Investment Grade Credit Fund | Institutional Shares, Goldman Sachs Investment Grade Credit Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.10% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.37% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 38
3 Years rr_ExpenseExampleYear03 147
5 Years rr_ExpenseExampleYear05 267
10 Years rr_ExpenseExampleYear10 616
Goldman Sachs Investment Grade Credit Fund | Class IR Shares, Goldman Sachs Investment Grade Credit Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.19% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.59% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.46% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 47
3 Years rr_ExpenseExampleYear03 176
5 Years rr_ExpenseExampleYear05 316
10 Years rr_ExpenseExampleYear10 725
Goldman Sachs Investment Grade Credit Fund | Separate Account Institutional Class, Goldman Sachs Investment Grade Credit Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Separate Account Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Separate Account Institutional
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.10% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.50% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.37% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Separate Account Institutional Shares
1 Year rr_ExpenseExampleYear01 38
3 Years rr_ExpenseExampleYear03 147
5 Years rr_ExpenseExampleYear05 267
10 Years rr_ExpenseExampleYear10 616
Goldman Sachs Investment Grade Credit Fund | Returns Before Taxes | Class A Shares, Goldman Sachs Investment Grade Credit Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.30%
5 Years rr_AverageAnnualReturnYear05 3.22%
Since Inception rr_AverageAnnualReturnSinceInception 3.51%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs Investment Grade Credit Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs Investment Grade Credit Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 9.76%
5 Years rr_AverageAnnualReturnYear05 4.36%
Since Inception rr_AverageAnnualReturnSinceInception 4.47%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs Investment Grade Credit Fund | Returns Before Taxes | Separate Account Institutional Class, Goldman Sachs Investment Grade Credit Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Separate Account Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 9.81%
5 Years rr_AverageAnnualReturnYear05 4.43%
Since Inception rr_AverageAnnualReturnSinceInception 4.52%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs Investment Grade Credit Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs Investment Grade Credit Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 3.78%
5 Years rr_AverageAnnualReturnYear05 1.43%
Since Inception rr_AverageAnnualReturnSinceInception 1.82%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs Investment Grade Credit Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs Investment Grade Credit Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 3.43%
5 Years rr_AverageAnnualReturnYear05 1.68%
Since Inception rr_AverageAnnualReturnSinceInception 1.99%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs Investment Grade Credit Fund | Barclays Capital U.S. Credit Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Credit Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 8.47%
5 Years rr_AverageAnnualReturnYear05 5.98%
Since Inception rr_AverageAnnualReturnSinceInception 5.39%
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs Local Emerging Markets Debt Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Local Emerging Markets Debt Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Local Emerging Markets Debt Fund (the “Fund”) seeks a high level of total return consisting of income and capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The Fund's "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class C, Institutional and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class C, Institutional and/or Class IR 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 (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 154% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 154.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in sovereign and corporate debt of issuers located in emerging countries denominated in the local currency of such emerging countries or in currencies of such emerging countries, which may be represented by forwards or other derivatives that may have interest rate exposure. Sovereign debt for this Fund consists of fixed income securities issued by a national government within a given country denominated in the currency of that country, and may also include nominal and real inflation-linked securities. Currency investments, particularly longer-dated forward contracts, provide the Fund with economic exposure similar to investments in sovereign and corporate debt with respect to currency and interest rate exposure.

The Investment Adviser may consider classifications by the World Bank, the International Finance Corporation or the United Nations (and its agencies) in determining whether a country is emerging or developed. Currently, emerging countries include, among others, most African, Asian, Eastern European, Middle Eastern, South and Central American nations. The Investment Adviser currently intends that the Fund’s investment focus will be in the following emerging countries: Argentina, Botswana, Brazil, Chile, China, Colombia, Czech Republic, Dominican Republic, Egypt, Estonia, Ghana, Hong Kong, Hungary, India, Indonesia, Kazakstan, Kenya, Latvia, Lithuania, Malawi, Malaysia, Mauritius, Mexico, Nigeria, Peru, The Philippines, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, South Africa, South Korea, Sri Lanka, Taiwan, Tanzania, Thailand, Turkey, Uganda, Ukraine, United Arab Emirates, Uruguay, Venezuela, Vietnam and Zambia, as well as other emerging countries to the extent that foreign investors are permitted by applicable law to make such investments. The Fund may invest in all types of foreign and emerging country fixed income securities. Foreign securities include securities of issuers located outside the U.S. or securities quoted or denominated in a currency other than the U.S. Dollar.

The countries in which the Fund invests may have sovereign ratings that are below investment grade or are unrated. Moreover, to the extent the Fund invests in corporate or other privately issued debt obligations, many of the issuers of such obligations will be smaller companies with stock market capitalizations of $1 billion or less at the time of investment. Securities of these issuers may be rated below investment grade or unrated. Although a majority of the Fund’s assets will be denominated in non-U.S. Dollars, the Fund may invest in securities denominated in the U.S. Dollar.

Currently, the Investment Adviser’s emerging markets debt strategy invests significantly in emerging market sovereign issues. As such, country selection is believed to be the most important factor in the portfolio construction process. The Investment Adviser evaluates macro developments and assesses the net flows within countries. The next most important factor is security selection. Analysis of emerging market debt involves an understanding of the finances, political events, and macroeconomic condition of a country. The Investment Adviser’s research analysts analyze the “balance sheets” of the countries they follow.

The Investment Adviser intends to use structured securities and derivative instruments to attempt to improve the performance of the Fund or to gain exposure to certain countries or currencies in the Fund’s investment portfolio in accordance with its investment objective, and the Fund’s investments in these instruments may be significant. These transactions may result in substantial realized and unrealized capital gains and losses relative to the gains and losses from the Fund’s investments in bonds and other securities. Short-term and long-term realized capital gains distributions paid by the Fund are taxable to its shareholders.

The Fund may invest in the aggregate up to 20% of its Net Assets in investments other than emerging country fixed income securities, currency investments and related derivatives, including (without limitation) equity securities and fixed income securities, such as government, corporate and bank debt obligations, of developed country issuers.

The Fund may invest in securities without regard to credit rating. The Fund’s target duration under normal interest rate conditions is that of the J.P. Morgan Government Bond Index—Emerging Markets Global Diversified Index plus or minus 2 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and since the Index’s inception on December 31, 2002, the duration of this Index has ranged between 3.80 and 4.40 years.

The Fund’s portfolio managers seek to build a portfolio consisting of their “best ideas” across the emerging markets debt market consistent with the Fund’s overall risk budget and the views of the Investment Adviser’s Global Fixed Income top-down teams. As market conditions change, the volatility and attractiveness of sectors, securities and strategies can change as well. To optimize the Fund’s risk/return potential within its long-term risk budget, the portfolio managers may dynamically adjust the mix of top-down and bottom-up strategies in the Fund’s portfolio.

THE FUND IS “NON-DIVERSIFIED” UNDER THE INVESTMENT COMPANY ACT AS AMENDED (THE “INVESTMENT COMPANY ACT”), AND MAY INVEST MORE OF ITS ASSETS IN FEWER ISSUERS THAN “DIVERSIFIED” MUTUAL FUNDS.

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

• Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

• Emerging Countries Risk—The securities markets of most Central and South American, African, Middle Eastern, Asian, Eastern European and other emerging countries are less liquid, are especially subject to greater price volatility, have smaller market capitalizations, have more or less government regulation and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

• Foreign Risk—Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. Foreign risks may be more pronounced when the Fund invests in issuers located in emerging countries.

• Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

• Liquidity Risk—The Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

• Non-Diversification Risk—The Fund is non-diversified, meaning that it is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.

• Non-Investment Grade Fixed Income Securities Risk—Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity.

• Sovereign Risk—An issuer of non-U.S. sovereign debt, or the governmental authorities that control the repayment of the debt, may be unable or unwilling to repay the principal or interest when due. This may result from political or social factors, the general economic environment of a country, levels of foreign debt or foreign currency exchange rates.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Non-Diversification Risk—The Fund is non-diversified, meaning that it is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Thus, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C and Institutional Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Because Class IR Shares have not had a full calendar year of performance as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C and Institutional Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares have not had a full calendar year of performance as of the date of this Prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six month period ended June 30, 2011 was 5.67%

Best Quarter

Q2 ‘09 +16.25%

Worst Quarter

Q2 ‘10 -2.44%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class C and Institutional Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class C and Institutional Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Local Emerging Markets Debt Fund | Class A Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.28%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.43%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [18]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.25% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 572
3 Years rr_ExpenseExampleYear03 865
5 Years rr_ExpenseExampleYear05 1,180
10 Years rr_ExpenseExampleYear10 2,071
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 26.48%
2010 rr_AnnualReturn2010 15.34%
Year to Date Return, Label rr_YearToDateReturnLabel total return
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 Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.25%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.44%)
Goldman Sachs Local Emerging Markets Debt Fund | Class C Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.28%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.18%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [18]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 2.00% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 303
3 Years rr_ExpenseExampleYear03 665
5 Years rr_ExpenseExampleYear05 1,153
10 Years rr_ExpenseExampleYear10 2,499
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 203
3 Years rr_ExpenseExampleNoRedemptionYear03 665
5 Years rr_ExpenseExampleNoRedemptionYear05 1,153
10 Years rr_ExpenseExampleNoRedemptionYear10 2,499
Goldman Sachs Local Emerging Markets Debt Fund | Institutional Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.19%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.09%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [18]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.91% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 93
3 Years rr_ExpenseExampleYear03 329
5 Years rr_ExpenseExampleYear05 583
10 Years rr_ExpenseExampleYear10 1,313
Goldman Sachs Local Emerging Markets Debt Fund | Class IR Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Redemption Fee (as a percentage of amount redeemed, imposed on the redemption of shares held for 60 calendar days or less) rr_RedemptionFeeOverRedemption 2.00%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.90%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.28%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.18%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [18]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.00% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 102
3 Years rr_ExpenseExampleYear03 357
5 Years rr_ExpenseExampleYear05 632
10 Years rr_ExpenseExampleYear10 1,416
Goldman Sachs Local Emerging Markets Debt Fund | Returns Before Taxes | Class A Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 10.16%
Since Inception rr_AverageAnnualReturnSinceInception 2.94%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 15, 2008
Goldman Sachs Local Emerging Markets Debt Fund | Returns Before Taxes | Class C Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 13.25%
Since Inception rr_AverageAnnualReturnSinceInception 3.85%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 15, 2008
Goldman Sachs Local Emerging Markets Debt Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 15.74%
Since Inception rr_AverageAnnualReturnSinceInception 4.95%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 15, 2008
Goldman Sachs Local Emerging Markets Debt Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 7.17%
Since Inception rr_AverageAnnualReturnSinceInception 0.90%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 15, 2008
Goldman Sachs Local Emerging Markets Debt Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs Local Emerging Markets Debt Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 6.51%
Since Inception rr_AverageAnnualReturnSinceInception 1.32%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 15, 2008
Goldman Sachs Local Emerging Markets Debt Fund | J.P. Morgan Government Bond Index - Emerging Markets Global Diversified Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel J.P. Morgan Government Bond Index—Emerging Markets Global Diversified Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 15.68%
Since Inception rr_AverageAnnualReturnSinceInception 10.05%
GOLDMAN SACHS SINGLE SECTOR FIXED INCOME FUNDS | Goldman Sachs U.S. Mortgages Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs U.S. Mortgages Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs U.S. Mortgages Fund (the “Fund”) seeks a high level of total return consisting of income and capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 93 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates The "Other Expenses" for Class IR Shares are based on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The "Annual Fund Operating Expenses" of the Fund's Class A and Institutional Shares have been restated to reflect current fees.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Class IR and/or Separate Account Institutional Shares of the Fund for the time periods indicated and then redeem all of your Class A, Institutional, Class IR and/or Separate Account Institutional 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 (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 905% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 905.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in securities representing direct or indirect interests in or that are collateralized by adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”) of U.S. issuers. The Fund may also invest in mortgage dollar rolls, securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), asset-backed securities and foreign securities.

The Fund’s investments must be rated, at the time of purchase, at least BBB– by Standard & Poor’s Rating Group (“Standard & Poor’s”), at least Baa3 by Moody’s Investors Service, Inc. (“Moody’s”), or have a comparable rating by another nationally recognized statistical rating organization (“NRSRO”) or, if unrated, must be determined by the Investment Adviser to be of comparable quality. The Fund’s target duration under normal interest rate conditions is the duration of the Barclays Capital U.S. Securitized Bond Index plus or minus 0.5 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of this Index has ranged between 0.97 and 4.51 years.

The Fund’s portfolio managers seek to build a portfolio consisting of their “best ideas” across the U.S. mortgages market consistent with the Fund’s overall risk budget and the views of the Investment Adviser’s Global Fixed Income top-down teams. As market conditions change, the volatility and attractiveness of sectors, securities and strategies can change as well. To optimize the Fund’s risk/return potential within its long-term risk budget, the portfolio managers may dynamically adjust the mix of top-down and bottom-up strategies in the Fund’s portfolio.

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

• Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

• Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

• Mortgage-Backed and Other Asset-Backed Risk—Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

• U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by the Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional and Separate Account Institutional Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

Because Class IR Shares have not commenced operations as of the date of this Prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional and Separate Account Institutional Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares have not commenced operations as of the date of this Prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six month period ended June 30, 2011 was 2.37%

Best Quarter

Q3 ‘09 +4.75%

Worst Quarter

Q1 ‘08 -2.43%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For The Period Ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Institutional and Separate Account Institutional Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Institutional and Separate Account Institutional Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs U.S. Mortgages Fund | Class A Shares, Goldman Sachs U.S. Mortgages Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.24% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.89% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.71% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 445
3 Years rr_ExpenseExampleYear03 631
5 Years rr_ExpenseExampleYear05 833
10 Years rr_ExpenseExampleYear10 1,414
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2004 rr_AnnualReturn2004 4.33%
2005 rr_AnnualReturn2005 2.15%
2006 rr_AnnualReturn2006 4.69%
2007 rr_AnnualReturn2007 5.93%
2008 rr_AnnualReturn2008 (3.55%)
2009 rr_AnnualReturn2009 11.75%
2010 rr_AnnualReturn2010 6.23%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.37%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.75%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.43%)
Goldman Sachs U.S. Mortgages Fund | Institutional Shares, Goldman Sachs U.S. Mortgages Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.37% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 38
3 Years rr_ExpenseExampleYear03 158
5 Years rr_ExpenseExampleYear05 289
10 Years rr_ExpenseExampleYear10 672
Goldman Sachs U.S. Mortgages Fund | Class IR Shares, Goldman Sachs U.S. Mortgages Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.24% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.64% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.46% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 47
3 Years rr_ExpenseExampleYear03 187
5 Years rr_ExpenseExampleYear05 339
10 Years rr_ExpenseExampleYear10 781
Goldman Sachs U.S. Mortgages Fund | Separate Account Institutional Class, Goldman Sachs U.S. Mortgages Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Separate Account Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Separate Account Institutional
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15% [15]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.55% [16]
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [17]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.37% [16]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Separate Account Institutional Shares
1 Year rr_ExpenseExampleYear01 38
3 Years rr_ExpenseExampleYear03 158
5 Years rr_ExpenseExampleYear05 289
10 Years rr_ExpenseExampleYear10 672
Goldman Sachs U.S. Mortgages Fund | Returns Before Taxes | Class A Shares, Goldman Sachs U.S. Mortgages Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.10%
Since Inception rr_AverageAnnualReturnSinceInception 3.94%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs U.S. Mortgages Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs U.S. Mortgages Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 6.58%
5 Years rr_AverageAnnualReturnYear05 5.25%
Since Inception rr_AverageAnnualReturnSinceInception 4.90%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs U.S. Mortgages Fund | Returns Before Taxes | Separate Account Institutional Class, Goldman Sachs U.S. Mortgages Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Separate Account Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 6.73%
5 Years rr_AverageAnnualReturnYear05 5.33%
Since Inception rr_AverageAnnualReturnSinceInception 4.95%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs U.S. Mortgages Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs U.S. Mortgages Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 1.37%
5 Years rr_AverageAnnualReturnYear05 2.62%
Since Inception rr_AverageAnnualReturnSinceInception 2.48%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs U.S. Mortgages Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs U.S. Mortgages Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 1.47%
5 Years rr_AverageAnnualReturnYear05 2.61%
Since Inception rr_AverageAnnualReturnSinceInception 2.49%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 03, 2003
Goldman Sachs U.S. Mortgages Fund | Barclays Capital U.S. Securitized Bond Index
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Securitized Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.52%
5 Years rr_AverageAnnualReturnYear05 6.14%
Since Inception rr_AverageAnnualReturnSinceInception 5.45%
GOLDMAN SACHS MULTI SECTOR FIXED INCOME FUNDS | Goldman Sachs Core Fixed Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Core Fixed Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Core Fixed Income Fund (the “Fund”) seeks a total return consisting of capital appreciation and income that exceeds the total return of the Barclays Capital U.S. Aggregate Bond Index (the “Index”).
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment):
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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 rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares at the end of those periods, unless otherwise stated. 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:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 554% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 554.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in fixed income securities, including securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), corporate debt securities, privately issued adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”) and asset-backed securities. The Fund may also invest in custodial receipts, fixed income securities issued by or on behalf of states, territories, and possessions of the United States (including the District of Columbia) (“Municipal Securities”) and convertible securities. The Fund may also engage in forward foreign currency transactions for both speculative and hedging purposes.

The Fund’s investments in non-U.S. dollar denominated obligations (hedged or unhedged against currency risk) will not exceed 25% of its total assets (not including securities lending collateral and any investment of that collateral) measured at the time of purchase (“Total Assets”), and 10% of the Fund’s Total Assets may be invested in obligations of issuers in countries with emerging markets or economies (“emerging countries”). Additionally, exposure to non-U.S. currencies (unhedged against currency risk) will not exceed 25% of the Fund’s Total Assets. In pursuing its investment objective, the Fund uses the Index as its performance benchmark, but the Fund will not attempt to replicate the Index. The Fund may, therefore, invest in securities that are not included in the Index.

The Fund may invest in fixed income securities rated at least BBB- or Baa3 at the time of purchase. Securities will either be rated by a nationally recognized statistical rating organization (“NRSRO”) or, if unrated, determined by the Investment Adviser to be of comparable quality. The Fund’s target duration is that of the Index plus or minus one year (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of the Index has ranged between 3.71 and 4.98 years.

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest or repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund's liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk. Loss may result from the Fund’s investments in options, futures, forwards, swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Foreign and Emerging Countries Risk. Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in securities of issuers located in emerging markets, these risks may be more pronounced. The securities markets of emerging countries are especially subject to greater price volatility and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities may have more price volatility because of this risk than short-term fixed income securities.

Mortgage-Backed and Other Asset-Backed Securities Risk. Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

U.S. Government Securities Risk. The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the United States Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by a Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 2.52%.

Best Quarter

Q3 ’09 +8.52%

Worst Quarter

Q3 ’08 -4.12%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURN For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Core Fixed Income Fund | Class A Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.81%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 455
3 Years rr_ExpenseExampleYear03 624
5 Years rr_ExpenseExampleYear05 808
10 Years rr_ExpenseExampleYear10 1,339
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 8.00%
2002 rr_AnnualReturn2002 8.12%
2003 rr_AnnualReturn2003 6.06%
2004 rr_AnnualReturn2004 4.59%
2005 rr_AnnualReturn2005 2.36%
2006 rr_AnnualReturn2006 3.63%
2007 rr_AnnualReturn2007 6.30%
2008 rr_AnnualReturn2008 (10.92%)
2009 rr_AnnualReturn2009 15.95%
2010 rr_AnnualReturn2010 7.31%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.52%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.52%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.12%)
Goldman Sachs Core Fixed Income Fund | Class B Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.56%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption
1 Year rr_ExpenseExampleYear01 659
3 Years rr_ExpenseExampleYear03 793
5 Years rr_ExpenseExampleYear05 1,050
10 Years rr_ExpenseExampleYear10 1,655
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 159
3 Years rr_ExpenseExampleNoRedemptionYear03 493
5 Years rr_ExpenseExampleNoRedemptionYear05 850
10 Years rr_ExpenseExampleNoRedemptionYear10 1,655
Goldman Sachs Core Fixed Income Fund | Class C Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.56%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 259
3 Years rr_ExpenseExampleYear03 493
5 Years rr_ExpenseExampleYear05 850
10 Years rr_ExpenseExampleYear10 1,856
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 159
3 Years rr_ExpenseExampleNoRedemptionYear03 493
5 Years rr_ExpenseExampleNoRedemptionYear05 850
10 Years rr_ExpenseExampleNoRedemptionYear10 1,856
Goldman Sachs Core Fixed Income Fund | Institutional Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.09%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.47%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 48
3 Years rr_ExpenseExampleYear03 151
5 Years rr_ExpenseExampleYear05 263
10 Years rr_ExpenseExampleYear10 591
Goldman Sachs Core Fixed Income Fund | Service Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.59%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.97%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 99
3 Years rr_ExpenseExampleYear03 309
5 Years rr_ExpenseExampleYear05 536
10 Years rr_ExpenseExampleYear10 1,190
Goldman Sachs Core Fixed Income Fund | Class IR Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.56%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 57
3 Years rr_ExpenseExampleYear03 179
5 Years rr_ExpenseExampleYear05 313
10 Years rr_ExpenseExampleYear10 701
Goldman Sachs Core Fixed Income Fund | Class R Shares, Goldman Sachs Core Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.38%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.06%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 108
3 Years rr_ExpenseExampleYear03 337
5 Years rr_ExpenseExampleYear05 585
10 Years rr_ExpenseExampleYear10 1,294
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Class A Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 3.23%
5 Years rr_AverageAnnualReturnYear05 3.28%
10 Years rr_AverageAnnualReturnYear10 4.53%
Since Inception rr_AverageAnnualReturnSinceInception 5.16%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Class B Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.51%
5 Years rr_AverageAnnualReturnYear05 2.89%
10 Years rr_AverageAnnualReturnYear10 4.31%
Since Inception rr_AverageAnnualReturnSinceInception 4.99%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Class C Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.47%
5 Years rr_AverageAnnualReturnYear05 3.28%
10 Years rr_AverageAnnualReturnYear10 4.16%
Since Inception rr_AverageAnnualReturnSinceInception 4.49%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.76%
5 Years rr_AverageAnnualReturnYear05 4.42%
10 Years rr_AverageAnnualReturnYear10 5.33%
Since Inception rr_AverageAnnualReturnSinceInception 5.87%
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 05, 1994
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Service Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.22%
5 Years rr_AverageAnnualReturnYear05 3.92%
10 Years rr_AverageAnnualReturnYear10 4.82%
Since Inception rr_AverageAnnualReturnSinceInception 5.36%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 13, 1996
Goldman Sachs Core Fixed Income Fund | Returns Before Taxes | Class IR Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.57%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 3.68%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Returns | Goldman Sachs Core Fixed Income Fund | Class R Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Returns
1 Year rr_AverageAnnualReturnYear01 7.05%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 3.20%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Core Fixed Income Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 2.31%
5 Years rr_AverageAnnualReturnYear05 1.82%
10 Years rr_AverageAnnualReturnYear10 2.81%
Since Inception rr_AverageAnnualReturnSinceInception 3.19%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Core Fixed Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 2.09%
5 Years rr_AverageAnnualReturnYear05 1.92%
10 Years rr_AverageAnnualReturnYear10 2.85%
Since Inception rr_AverageAnnualReturnSinceInception 3.20%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Class A Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.83%
Since Inception rr_AverageAnnualReturnSinceInception 6.30%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Class B Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.83%
Since Inception rr_AverageAnnualReturnSinceInception 6.30%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Class C Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.83%
Since Inception rr_AverageAnnualReturnSinceInception 6.13%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Institutional Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.83%
Since Inception rr_AverageAnnualReturnSinceInception 6.18%
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 05, 1994
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Service Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05 5.80%
10 Years rr_AverageAnnualReturnYear10 5.83%
Since Inception rr_AverageAnnualReturnSinceInception 6.27%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 13, 1996
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Class IR Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 5.82%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Fixed Income Fund | Class R Shares, Goldman Sachs Core Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 5.82%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS MULTI SECTOR FIXED INCOME FUNDS | Goldman Sachs Core Plus Fixed Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Core Plus Fixed Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Core Plus Fixed Income Fund (the “Fund”) seeks a total return consisting of capital appreciation and income that exceeds the total return of the Barclays Capital U.S. Aggregate Bond Index (the “Index”).
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment):
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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):
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares at the end of those periods, unless otherwise stated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 673% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 673.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in fixed income securities, including securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), corporate debt securities, collateralized loan obligations, privately issued adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”), asset-backed securities, high yield non-investment grade securities (securities rated BB, Ba or below by a nationally recognized statistical rating organization (“NRSRO”) or, if unrated, determined by the Investment Adviser to be of comparable quality) and fixed income securities of issuers in countries with emerging markets or economies (“emerging countries”). The Fund may also invest in custodial receipts, fixed income securities issued by or on behalf of states, territories, and possessions of the United States (including the District of Columbia) (“Municipal Securities”) and convertible securities. The Fund may also engage in forward foreign currency transactions for both speculative and hedging purposes. The Fund may invest in obligations of domestic and foreign issuers which are denominated in currencies other than the U.S. dollar. The Fund may invest up to 15% of its total assets (not including securities lending collateral and any investment of that collateral) measured at the time of purchase (“Total Assets”) in obligations of issuers in emerging countries. In pursuing its investment objective, the Fund uses the Index as its performance benchmark, but the Fund will not attempt to replicate the Index. The Fund may, therefore, invest in securities that are not included in the Index. The Fund may also purchase securities of issuers in default.

The Fund’s investments in non-investment grade securities (i.e., junk bonds) will not exceed 15% of its Total Assets at the time of purchase. Otherwise, the Fund invests in fixed income securities rated at least BBB- or Baa3 at the time of purchase. Securities will either be rated by a NRSRO or, if unrated, determined by the Investment Adviser to be of comparable quality. The Fund’s target duration is that of the Index, plus or minus 1.5 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of the Index has ranged between 3.71 and 4.98 years.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk. Loss may result from the Fund’s investments in options, futures, forwards, swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Foreign and Emerging Countries Risk. Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in securities of issuers located in emerging markets, these risks may be more pronounced. The securities markets of emerging countries are especially subject to greater price volatility and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Mortgage-Backed and Other Asset-Backed Securities Risk. Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

Non-Investment Grade Fixed Income Securities Risk. Non-investment grade fixed income securities and unrated securities of comparable credit quality are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity.

U.S. Government Securities Risk. The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the United States Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by a Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 2.60%.

Best Quarter

Q3 ’09 +5.88%

Worst Quarter

Q3 ’08 -3.49%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURN For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Core Plus Fixed Income Fund | Class A Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.30%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.30%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.00%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.83%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 457
3 Years rr_ExpenseExampleYear03 665
5 Years rr_ExpenseExampleYear05 891
10 Years rr_ExpenseExampleYear10 1,539
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2007 rr_AnnualReturn2007 6.57%
2008 rr_AnnualReturn2008 (4.62%)
2009 rr_AnnualReturn2009 13.79%
2010 rr_AnnualReturn2010 7.57%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 2.60%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.88%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.49%)
Goldman Sachs Core Plus Fixed Income Fund | Class B Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.30%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.30%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.75%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.58%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption
1 Year rr_ExpenseExampleYear01 661
3 Years rr_ExpenseExampleYear03 835
5 Years rr_ExpenseExampleYear05 1,133
10 Years rr_ExpenseExampleYear10 1,850
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 161
3 Years rr_ExpenseExampleNoRedemptionYear03 535
5 Years rr_ExpenseExampleNoRedemptionYear05 933
10 Years rr_ExpenseExampleNoRedemptionYear10 1,850
Goldman Sachs Core Plus Fixed Income Fund | Class C Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.30%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.30%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.75%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.58%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 261
3 Years rr_ExpenseExampleYear03 535
5 Years rr_ExpenseExampleYear05 933
10 Years rr_ExpenseExampleYear10 2,048
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 161
3 Years rr_ExpenseExampleNoRedemptionYear03 535
5 Years rr_ExpenseExampleNoRedemptionYear05 933
10 Years rr_ExpenseExampleNoRedemptionYear10 2,048
Goldman Sachs Core Plus Fixed Income Fund | Institutional Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.21%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.21%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.66%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.49%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 50
3 Years rr_ExpenseExampleYear03 194
5 Years rr_ExpenseExampleYear05 351
10 Years rr_ExpenseExampleYear10 806
Goldman Sachs Core Plus Fixed Income Fund | Service Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.71%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.21%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.16%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.99%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 101
3 Years rr_ExpenseExampleYear03 352
5 Years rr_ExpenseExampleYear05 622
10 Years rr_ExpenseExampleYear10 1,394
Goldman Sachs Core Plus Fixed Income Fund | Class IR Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.30%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.30%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.75%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.58%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 59
3 Years rr_ExpenseExampleYear03 223
5 Years rr_ExpenseExampleYear05 400
10 Years rr_ExpenseExampleYear10 914
Goldman Sachs Core Plus Fixed Income Fund | Class R Shares, Goldman Sachs Core Plus Fixed Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.30%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.30%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.25%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.17%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.08%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 110
3 Years rr_ExpenseExampleYear03 380
5 Years rr_ExpenseExampleYear05 670
10 Years rr_ExpenseExampleYear10 1,496
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Class A Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 3.55%
Since Inception rr_AverageAnnualReturnSinceInception 4.39%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Class B Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.49%
Since Inception rr_AverageAnnualReturnSinceInception 4.56%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Class C Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.72%
Since Inception rr_AverageAnnualReturnSinceInception 4.57%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Institutional Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 8.04%
Since Inception rr_AverageAnnualReturnSinceInception 5.74%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Service Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.52%
Since Inception rr_AverageAnnualReturnSinceInception 6.09%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Core Plus Fixed Income Fund | Returns Before Taxes | Class IR Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.84%
Since Inception rr_AverageAnnualReturnSinceInception 5.55%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Returns | Goldman Sachs Core Plus Fixed Income Fund | Class R Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Returns
1 Year rr_AverageAnnualReturnYear01 7.41%
Since Inception rr_AverageAnnualReturnSinceInception 5.03%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Core Plus Fixed Income Fund | Returns After Taxes on Distributions | Class A Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 1.46%
Since Inception rr_AverageAnnualReturnSinceInception 2.67%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Goldman Sachs Core Plus Fixed Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares | Class A Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 2.40%
Since Inception rr_AverageAnnualReturnSinceInception 2.73%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Class A Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 5.88%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Class B Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 6.85%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Class C Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 5.88%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Institutional Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 5.88%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2006
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Service Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 6.85%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Class IR Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 5.82%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Barclays Capital U.S. Aggregate Bond Index | Goldman Sachs Core Plus Fixed Income Fund | Class R Shares, Goldman Sachs Core Plus Fixed Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. Aggregate Bond Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 6.54%
Since Inception rr_AverageAnnualReturnSinceInception 5.82%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS MULTI SECTOR FIXED INCOME FUNDS | Goldman Sachs Global Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Global Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Goldman Sachs Global Income Fund (the “Fund”) seeks a high total return, emphasizing current income, and, to a lesser extent, providing opportunities for capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment):
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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):
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service and/or Class IR Shares at the end of those periods, unless otherwise stated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 430% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 430.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in a portfolio of fixed income securities of U.S. and foreign issuers. Foreign securities include securities of issuers located outside the U.S. or securities quoted or denominated in a currency other than the U.S. dollar. The Fund also enters into transactions in foreign currencies, typically through the use of forward contracts and swap contracts. Under normal market conditions, the Fund will:

• Have at least 30% of its Net Assets, after considering the effect of currency positions, denominated in U.S. dollars

• Invest in securities of issuers in at least three countries

• Seek to meet its investment objective by pursuing investment opportunities in foreign and domestic fixed income securities markets and by engaging in currency transactions to seek to enhance returns and to seek to hedge its portfolio against currency exchange rate fluctuations

The Fund may invest more than 25% of its total assets in the securities of corporate and governmental issuers located in each of Canada, Germany, Japan and the United Kingdom as well as in the securities of U.S. issuers. Not more than 25% of the Fund’s total assets will be invested in securities of issuers in any other single foreign country. The Fund may also invest up to 10% of its total assets (not including securities lending collateral and any investment of that collateral) measured at the time of purchase (“Total Assets”) in issuers in countries with emerging markets or economies (“emerging countries”).

The fixed income securities in which the Fund may invest include:

• Securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”) and custodial receipts therefor

• Securities issued or guaranteed by a foreign government or any of its political subdivisions, authorities, agencies, instrumentalities or by supranational entities

• Corporate debt securities

• Certificates of deposit and bankers’ acceptances issued or guaranteed by, or time deposits maintained at, U.S. or foreign banks (and their branches wherever located) having total assets of more than $1 billion

• Commercial paper

• Privately issued adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”) and asset-backed securities

The Fund may invest in fixed income securities rated at least BBB - or Baa3 at the time of purchase, and at least 25% of the Fund’s Total Assets will be invested in fixed income securities rated at least AAA or Aaa at the time of purchase. Securities will either be rated by a nationally recognized statistical rating organization (“NRSRO”) or, if unrated, determined by the Investment Adviser to be of comparable quality. The Fund’s target duration is that of the Barclays Capital Global Aggregate Index (USD Hedged), plus or minus 2.5 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the last ten years, the duration of the index has ranged between 4.59 and 5.88 years. Subject to the above, there are no limits on the length of remaining maturities of securities held by the Fund. The approximate interest rate sensitivity of the Fund is comparable to that of a 6 year bond.

THE FUND IS NON-DIVERSIFIED UNDER THE INVESTMENT COMPANY ACT OF 1940 (THE “INVESTMENT COMPANY ACT”), AND MAY INVEST MORE OF ITS ASSETS IN FEWER ISSUERS THAN “DIVERSIFIED” MUTUAL FUNDS.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk. Loss may result from the Fund’s investments in options, futures, forwards, swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Foreign and Emerging Countries Risk. Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in securities of issuers located in emerging markets, these risks may be more pronounced. The securities markets of emerging countries are especially subject to greater price volatility and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Mortgage-Backed and Other Asset-Backed Risk. Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

Non-Diversification Risk. The Fund is non-diversified under the Investment Company Act meaning that the Fund is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Therefore, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.

Sovereign Risk. The issuer of the non-U.S. sovereign debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay the principal or interest when due. This may result from political or social factors, the general economic environment of a country or levels of foreign debt or foreign currency exchange rates.

U.S. Government Securities Risk. The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the United States Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by a Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus Non-Diversification Risk. The Fund is non-diversified under the Investment Company Act meaning that the Fund is permitted to invest more of its assets in fewer issuers than “diversified” mutual funds. Therefore, the Fund may be more susceptible to adverse developments affecting any single issuer held in its portfolio, and may be more susceptible to greater losses because of these developments.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional and Service Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.

Because Class IR Shares did not have a full calendar year of operations as of the date of this prospectus, no performance information is shown for this share class. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional and Service Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects fee waivers and expense limitations in effect.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares did not have a full calendar year of operations as of the date of this prospectus, no performance information is shown for this share class.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 0.95%.

Best Quarter

Q3 ’09 +5.47%

Worst Quarter

Q3 ’08 -2.22%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURN For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional and Service Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional and Service Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Class A Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.23%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.13%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.03%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 476
3 Years rr_ExpenseExampleYear03 711
5 Years rr_ExpenseExampleYear05 965
10 Years rr_ExpenseExampleYear10 1,689
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 4.44%
2002 rr_AnnualReturn2002 5.85%
2003 rr_AnnualReturn2003 3.70%
2004 rr_AnnualReturn2004 4.27%
2005 rr_AnnualReturn2005 4.11%
2006 rr_AnnualReturn2006 1.66%
2007 rr_AnnualReturn2007 6.00%
2008 rr_AnnualReturn2008 (1.79%)
2009 rr_AnnualReturn2009 11.95%
2010 rr_AnnualReturn2010 4.40%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.95%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.47%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.22%)
Class B Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.23%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.88%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.78%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 681
3 Years rr_ExpenseExampleYear03 881
5 Years rr_ExpenseExampleYear05 1,207
10 Years rr_ExpenseExampleYear10 1,997
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 181
3 Years rr_ExpenseExampleNoRedemptionYear03 581
5 Years rr_ExpenseExampleNoRedemptionYear05 1,007
10 Years rr_ExpenseExampleNoRedemptionYear10 1,997
Class C Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.23%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.88%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.78%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 281
3 Years rr_ExpenseExampleYear03 581
5 Years rr_ExpenseExampleYear05 1,007
10 Years rr_ExpenseExampleYear10 2,193
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 181
3 Years rr_ExpenseExampleNoRedemptionYear03 581
5 Years rr_ExpenseExampleNoRedemptionYear05 1,007
10 Years rr_ExpenseExampleNoRedemptionYear10 2,193
Institutional Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.14%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.14%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.79%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.69%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 70
3 Years rr_ExpenseExampleYear03 242
5 Years rr_ExpenseExampleYear05 429
10 Years rr_ExpenseExampleYear10 969
Service Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.64%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.14%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.29%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.19%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 121
3 Years rr_ExpenseExampleYear03 399
5 Years rr_ExpenseExampleYear05 698
10 Years rr_ExpenseExampleYear10 1,548
Class IR Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.65%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.23%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.88%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.10%) [20]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.78%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 80
3 Years rr_ExpenseExampleYear03 271
5 Years rr_ExpenseExampleYear05 478
10 Years rr_ExpenseExampleYear10 1,075
Class A Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.46%
5 Years rr_AverageAnnualReturnYear05 3.55%
10 Years rr_AverageAnnualReturnYear10 4.01%
Since Inception rr_AverageAnnualReturnSinceInception 5.68%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 1991
Class B Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.47%)
5 Years rr_AverageAnnualReturnYear05 3.14%
10 Years rr_AverageAnnualReturnYear10 3.85%
Since Inception rr_AverageAnnualReturnSinceInception 5.08%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Class C Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.64%
5 Years rr_AverageAnnualReturnYear05 3.56%
10 Years rr_AverageAnnualReturnYear10 3.71%
Since Inception rr_AverageAnnualReturnSinceInception 4.29%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Institutional Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.76%
5 Years rr_AverageAnnualReturnYear05 4.71%
10 Years rr_AverageAnnualReturnYear10 4.88%
Since Inception rr_AverageAnnualReturnSinceInception 6.22%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1995
Service Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.16%
5 Years rr_AverageAnnualReturnYear05 4.17%
10 Years rr_AverageAnnualReturnYear10 4.35%
Since Inception rr_AverageAnnualReturnSinceInception 5.02%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 12, 1997
Class A Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (0.33%)
5 Years rr_AverageAnnualReturnYear05 1.98%
10 Years rr_AverageAnnualReturnYear10 2.04%
Since Inception rr_AverageAnnualReturnSinceInception 3.25%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 1991
Class A Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 0.30%
5 Years rr_AverageAnnualReturnYear05 2.11%
10 Years rr_AverageAnnualReturnYear10 2.23%
Since Inception rr_AverageAnnualReturnSinceInception 3.35%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 1991
Barclays Capital Global Aggregate Index (USD Hedged) | Class A Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Global Aggregate Index (USD Hedged)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.61%
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 5.21%
Since Inception rr_AverageAnnualReturnSinceInception 6.60% [21]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 1991
Barclays Capital Global Aggregate Index (USD Hedged) | Class B Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Global Aggregate Index (USD Hedged)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.61%
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 5.21%
Since Inception rr_AverageAnnualReturnSinceInception 6.16%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Barclays Capital Global Aggregate Index (USD Hedged) | Class C Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Global Aggregate Index (USD Hedged)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.61%
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 5.21%
Since Inception rr_AverageAnnualReturnSinceInception 5.79% [22]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Barclays Capital Global Aggregate Index (USD Hedged) | Institutional Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Global Aggregate Index (USD Hedged)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.61%
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 5.21%
Since Inception rr_AverageAnnualReturnSinceInception 6.26%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 1995
Barclays Capital Global Aggregate Index (USD Hedged) | Service Shares, Goldman Sachs Global Income Fund | Goldman Sachs Global Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Global Aggregate Index (USD Hedged)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.61%
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 5.21%
Since Inception rr_AverageAnnualReturnSinceInception 6.01% [23]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 12, 1997
GOLDMAN SACHS MULTI SECTOR FIXED INCOME FUNDS | Goldman Sachs Strategic Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Strategic Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock Goldman Sachs Strategic Income Fund (the “Fund”) seeks total return comprised of income and capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s statement of additional information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 66 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s statement of additional information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment):
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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):
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class C, Institutional, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class C, Institutional, Class IR and/or Class R 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 (except that the Example assumes that the expense limitation arrangement between the Fund and the Investment Adviser will remain in place for only one year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but will be reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 342% of the average value of the portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 342.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests in a broadly diversified portfolio of U.S. and foreign investment grade and non-investment grade fixed income investments including, but not limited to: U.S. Government securities (such as U.S. Treasury securities or Treasury inflation protected securities), non-U.S. sovereign debt, agency securities, corporate debt securities, agency and non-agency mortgage-backed securities, asset-backed securities, custodial receipts, municipal securities, loans and loan participations and convertible securities. The Fund’s investments in loans and loan participations may include, but are not limited to: (a) senior secured floating rate and fixed rate loans or debt (“Senior Loans”), (b) second lien or other subordinated or unsecured floating rate and fixed rate loans or debt (“Second Lien Loans”) and (c) other types of secured or unsecured loans with fixed, floating or variable interest rates. The Fund may invest in fixed income securities of any maturity.

Non-investment grade fixed income securities are securities rated BB, Ba or below by a nationally recognized statistical rating organization (“NRSRO”), or, if unrated, determined by the Investment Adviser to be of comparable quality.

The Fund may invest in fixed income securities of issuers located in emerging countries. Such investments may include sovereign debt issued by emerging countries that have sovereign ratings below investment grade or that are unrated. There is no limitation to the amount the Fund invests in non-investment grade or emerging market securities. From time to time, the Fund may also invest in preferred stock. The Fund’s investments may be denominated in currencies other than the U.S. dollar. The Fund may engage in forward foreign currency transactions for both investment and hedging purposes.

The Fund also intends to invest in other derivative instruments. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund’s investments in derivatives may include, in addition to forward foreign currency exchange contracts, interest rate futures contracts, options (including options on futures contracts, swaps, bonds, stocks and indexes), swaps (including credit default, index, basis, total return, volatility and currency swaps), and other forward contracts. The Fund may use derivatives instead of buying and selling bonds to manage duration, to gain exposure or to short individual securities or to gain exposure to a credit or asset backed index.

The Fund may implement short positions and generally will do so by using swaps or futures. For example, the Fund may enter into a futures contract pursuant to which it agrees to sell an asset (that it does not currently own) at a specified price at a specified point in the future. This gives the Fund a short position with respect to that asset. The Fund will benefit to the extent the asset decreases in value (and will be harmed to the extent the asset increases in value) between the time it enters into the futures contract and the agreed date of sale.

“Strategic” in the Fund’s name means that the Fund seeks both current income and capital appreciation as elements of total return. The Fund attempts to exploit pricing anomalies throughout the global fixed income and currency markets. Additionally, the Fund uses short positions and derivatives to enhance portfolio return or for hedging purposes. The Fund may sell investments that the portfolio managers believe are no longer favorable with regard to these factors.
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk. An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant NAV deterioration. To the extent that the Fund invests in non-investment grade fixed income securities, these risks may be more pronounced. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk. Loss may result from the Fund’s investments in options, futures, forwards, swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation. Foreign exchange rates can be extremely volatile and a variance in the degree of volatility of the market or in the direction of the market from the Investment Adviser’s expectations for speculative forward foreign currency transactions may produce significant losses to the Fund. The Fund may use derivatives, including futures and swaps, to implement short positions. Taking short positions involves leverage of the Fund’s assets and presents various risks. If the price of the instrument or market which the Fund has taken a short position on increases, then the Fund will incur a loss equal to the increase in price from the time that the short position was entered into plus any premiums and interest paid to a counterparty. Therefore, taking short positions involves the risk that losses may be exaggerated, potentially losing more money than the actual cost of the investment.

Foreign and Emerging Countries Risk. Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which the Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. To the extent that the Fund also invests in securities of issuers located in emerging markets, these risks may be more pronounced. The securities markets of emerging countries are especially subject to greater price volatility and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries.

Interest Rate Risk. When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk. The risk that the Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Management Risk. A strategy used by the Investment Adviser may fail to produce the intended results.

Market Risk. The value of the instruments in which the Fund invests may go up or down in response to the prospects of individual companies, particular industry sectors or governments and/or general economic conditions. Price changes may be temporary or last for extended periods.

Mortgage-Backed and Other Asset-Backed Risk. Generally, rising interest rates tend to extend the duration of fixed rate mortgage-backed securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, if the Fund holds mortgage-backed securities, it may exhibit additional volatility. This is known as extension risk. In addition, adjustable and fixed rate mortgage-backed securities are subject to prepayment risk. When interest rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce the returns of the Fund because the Fund may have to reinvest that money at the lower prevailing interest rates. The Fund may purchase many types of U.S. Government securities, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and Federal Home Loan Banks. These securities are neither issued nor guaranteed by the United States Treasury and, therefore, are not backed by the full faith and credit of the United States. The Fund’s investments in other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as additional risks associated with the nature of the assets and the servicing of those assets.

Non-Investment Grade Fixed Income Securities Risk. Non-investment grade fixed income securities and unrated securities of comparable credit quality are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate or municipal developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less secondary market liquidity.

Second Lien Loans Risk. Second Lien Loans generally are subject to similar risks as those associated with investments in Senior Loans. Because Second Lien Loans are subordinated or unsecured and thus lower in priority of payment to Senior Loans, they are subject to the additional risk that the cash flow of the borrower and property securing the loan or debt, if any, may be insufficient to meet scheduled payments after giving effect to the senior secured obligations of the borrower. This risk is generally higher for subordinated unsecured loans or debt, which are not backed by a security interest in any specific collateral. Second Lien Loans generally have greater price volatility than Senior Loans and may be less liquid. There is also a possibility that originators will not be able to sell participations in Second Lien Loans, which would create greater credit risk exposure for the holders of such loans. Second Lien Loans share the same risks as other below investment grade securities.

Senior Loan Risk. Senior Loans hold the most senior position in the capital structure of a business entity, and are typically secured with specific collateral and have a claim on the assets and/or stock of the borrower that is senior to that held by subordinated debt holders and stockholders of the borrower. Senior Loans are usually rated below investment grade, and are subject to similar risks, such as credit risk, as below investment grade securities. However, Senior Loans are typically senior and secured in contrast to other below investment grade securities, which are often subordinated and unsecured. There is less readily available, reliable information about most Senior Loans than is the case for many other types of securities, and the Investment Adviser relies primarily on its own evaluation of a borrower’s credit quality rather than on any available independent sources. The ability of the Fund to realize full value in the event of the need to sell a Senior Loan may be impaired by the lack of an active trading market for certain senior loans or adverse market conditions limiting liquidity. To the extent that a secondary market does exist for certain Senior Loans, the market may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods. Although Senior Loans in which the Fund will invest generally will be secured by specific collateral, there can be no assurance that liquidation of such collateral would satisfy the borrower’s obligation in the event of non-payment of scheduled interest or principal or that such collateral could be readily liquidated. In the event of the bankruptcy of a borrower, the Fund could experience delays or limitations with respect to its ability to realize the benefits of the collateral securing a Senior Loan. Moreover, any specific collateral used to secure a Senior Loan may decline in value or become illiquid, which would adversely affect the Senior Loan’s value. Uncollateralized Senior Loans involve a greater risk of loss. Some Senior Loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the Senior Loans to presently existing or future indebtedness of the borrower or take other action detrimental to lenders, including the Fund, such as invalidation of Senior Loans.

Sovereign Risk. An issuer of non-U.S. sovereign debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay the principal or interest when due. This may result from political or social factors, the general economic environment of a country, levels of foreign debt or foreign currency exchange rates.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock As the Fund has not operated for a full calendar year as of the date of this Prospectus, there is no performance information quoted for the Fund.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess As the Fund has not operated for a full calendar year as of the date of this Prospectus, there is no performance information quoted for the Fund.
Goldman Sachs Strategic Income Fund | Class A Shares, Goldman Sachs Strategic Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.08%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.06%) [24]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.02%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 475
3 Years rr_ExpenseExampleYear03 700
5 Years rr_ExpenseExampleYear05 943
10 Years rr_ExpenseExampleYear10 1,638
Goldman Sachs Strategic Income Fund | Class C Shares, Goldman Sachs Strategic Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.83%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.06%) [24]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.77%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 280
3 Years rr_ExpenseExampleYear03 570
5 Years rr_ExpenseExampleYear05 985
10 Years rr_ExpenseExampleYear10 2,143
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 180
3 Years rr_ExpenseExampleNoRedemptionYear03 570
5 Years rr_ExpenseExampleNoRedemptionYear05 985
10 Years rr_ExpenseExampleNoRedemptionYear10 2,143
Goldman Sachs Strategic Income Fund | Institutional Shares, Goldman Sachs Strategic Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.15%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.74%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.06%) [24]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.68%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 69
3 Years rr_ExpenseExampleYear03 231
5 Years rr_ExpenseExampleYear05 406
10 Years rr_ExpenseExampleYear10 913
Goldman Sachs Strategic Income Fund | Class IR Shares, Goldman Sachs Strategic Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.83%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.06%) [24]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.77%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 79
3 Years rr_ExpenseExampleYear03 259
5 Years rr_ExpenseExampleYear05 455
10 Years rr_ExpenseExampleYear10 1,020
Goldman Sachs Strategic Income Fund | Class R Shares, Goldman Sachs Strategic Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.24%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.33%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.06%) [24]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.27%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 129
3 Years rr_ExpenseExampleYear03 416
5 Years rr_ExpenseExampleYear05 723
10 Years rr_ExpenseExampleYear10 1,596
GOLDMAN SACHS SHORT DURATION AND GOVERNMENT FIXED INCOME FUNDS | Goldman Sachs Enhanced Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Enhanced Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks to generate return in excess of traditional money market products while maintaining an emphasis on preservation of capital and liquidity.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 500,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Institutional, Administration and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Institutional, Administration and/or Class IR 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 (except that the Example incorporates the management fee waiver arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, primarily in a portfolio of U.S. dollar-denominated fixed income securities, including non-mortgage securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), corporate notes, commercial paper and fixed and floating rate asset-backed securities and foreign securities. Except for asset-backed securities and Treasury Securities deliverable into futures transactions, the Fund will not invest in securities with remaining maturities of more than 5 years as determined in accordance with the SAI. With respect to asset-backed securities, the Fund will not invest in asset-backed securities with a weighted average life of more than 5 years. The Fund may invest across a broad range of high-grade fixed income sectors with an emphasis on the preservation of capital and liquidity. In pursuing the Fund's investment objective, the Investment Adviser will seek to enhance the Fund's return by identifying those high grade fixed income securities that are within the maturity limitations discussed above and that the Investment Adviser believes offer advantageous yields relative to other similar securities.

The Fund's investments must be rated A by a nationally recognized statistical rating organization (“NRSRO”) at the time of purchase, or, if unrated, must be determined by the Investment Adviser to be of comparable quality. The fund’s target duration is 9 months plus or minus 1 year (the Fund’s duration approximates its price sensitivity to changes in interest rates).

Goldman Sachs’ Fixed Income Investing Philosophy:

Global fixed income markets are constantly evolving and are highly diverse—with myriad countries, currencies, sectors, issuers and securities. We believe that inefficiencies in these complex markets cause bond prices to diverge from their fair value. To capitalize on these inefficiencies and generate consistent risk-adjusted performance, we believe it is critical to:

• Thoughtfully combine diversified sources of return by employing multiple strategies

• Take a global perspective to uncover relative value opportunities

• Employ focused specialist teams to identify short-term mis-pricings and incorporate long-term views

• Emphasize a risk-aware approach as we view risk management as both an offensive and defensive tool

• Build a strong team of skilled investors who excel on behalf of our clients
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Foreign Risk—Foreign securities may be subject to risk of loss because of less foreign government regulation, less public information and less economic, political and social stability in these countries. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in registration, settlement or custody. In addition, the Fund will be subject to the risk that an issuer of the non-U.S. sovereign debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay the principal or interest when due.

Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk—The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are not backed by the full faith and credit of the United States. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Institutional and Administration Shares compare to those of broad-based securities market indices. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect. Because Class IR Shares did not have a full year of operations as of the date of this Prospectus, the figures shown provide performance for the other share classes of the Fund. Class IR Shares would have annual returns substantially similar to those of the other share classes shown because Class IR Shares represent interests in the same portfolio of securities. Annual returns would differ only to the extent Class IR Shares have different expenses.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Institutional and Administration Shares compare to those of broad-based securities market indices.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Because Class IR Shares did not have a full year of operations as of the date of this Prospectus, the figures shown provide performance for the other share classes of the Fund.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 0.06%.

Best Quarter

Q1 ’01 +2.24%

Worst Quarter

Q3 ’08 -0.68%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Institutional and Administration Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Institutional and Administration Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Enhanced Income Fund | Class A Shares, Goldman Sachs Enhanced Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 1.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [25]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.68%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.05%) [26]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.63%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 213
3 Years rr_ExpenseExampleYear03 359
5 Years rr_ExpenseExampleYear05 518
10 Years rr_ExpenseExampleYear10 979
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 6.70%
2002 rr_AnnualReturn2002 2.72%
2003 rr_AnnualReturn2003 1.31%
2004 rr_AnnualReturn2004 0.52%
2005 rr_AnnualReturn2005 2.36%
2006 rr_AnnualReturn2006 4.53%
2007 rr_AnnualReturn2007 4.06%
2008 rr_AnnualReturn2008 1.10%
2009 rr_AnnualReturn2009 4.47%
2010 rr_AnnualReturn2010 0.43%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.06%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.24%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.68%)
Goldman Sachs Enhanced Income Fund | Class B Shares, Goldman Sachs Enhanced Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [25]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.18%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.43%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.05%) [26]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.38%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 640
3 Years rr_ExpenseExampleYear03 748
5 Years rr_ExpenseExampleYear05 977
10 Years rr_ExpenseExampleYear10 1,504
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 140
3 Years rr_ExpenseExampleNoRedemptionYear03 448
5 Years rr_ExpenseExampleNoRedemptionYear05 777
10 Years rr_ExpenseExampleNoRedemptionYear10 1,504
Goldman Sachs Enhanced Income Fund | Institutional Shares, Goldman Sachs Enhanced Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [25]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.09%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.34%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.05%) [26]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.29%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 30
3 Years rr_ExpenseExampleYear03 104
5 Years rr_ExpenseExampleYear05 186
10 Years rr_ExpenseExampleYear10 426
Goldman Sachs Enhanced Income Fund | Administration Shares, Goldman Sachs Enhanced Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Administration
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [25]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Administration
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.34%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.09%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.59%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.05%) [26]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.54%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Administration Shares
1 Year rr_ExpenseExampleYear01 55
3 Years rr_ExpenseExampleYear03 184
5 Years rr_ExpenseExampleYear05 324
10 Years rr_ExpenseExampleYear10 733
Goldman Sachs Enhanced Income Fund | Class IR Shares, Goldman Sachs Enhanced Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [25]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.18%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.43%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.05%) [26]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.38%
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 39
3 Years rr_ExpenseExampleYear03 133
5 Years rr_ExpenseExampleYear05 236
10 Years rr_ExpenseExampleYear10 537
Goldman Sachs Enhanced Income Fund | Class A Shares, Goldman Sachs Enhanced Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.10%)
5 Years rr_AverageAnnualReturnYear05 2.59%
10 Years rr_AverageAnnualReturnYear10 2.65%
Since Inception rr_AverageAnnualReturnSinceInception 2.87%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Class B Shares, Goldman Sachs Enhanced Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (5.40%)
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 0.55%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Enhanced Income Fund | Institutional Shares, Goldman Sachs Enhanced Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.77%
5 Years rr_AverageAnnualReturnYear05 3.27%
10 Years rr_AverageAnnualReturnYear10 3.17%
Since Inception rr_AverageAnnualReturnSinceInception 3.39%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Administration Shares, Goldman Sachs Enhanced Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Administration Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.52%
5 Years rr_AverageAnnualReturnYear05 3.07%
10 Years rr_AverageAnnualReturnYear10 2.94%
Since Inception rr_AverageAnnualReturnSinceInception 3.16%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Class A Shares, Goldman Sachs Enhanced Income Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (1.43%)
5 Years rr_AverageAnnualReturnYear05 1.51%
10 Years rr_AverageAnnualReturnYear10 1.47%
Since Inception rr_AverageAnnualReturnSinceInception 1.63%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Class A Shares, Goldman Sachs Enhanced Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 (0.72%)
5 Years rr_AverageAnnualReturnYear05 1.58%
10 Years rr_AverageAnnualReturnYear10 1.55%
Since Inception rr_AverageAnnualReturnSinceInception 1.70%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Six-Month U.S. Treasury Bill Index | Class A Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 2.94%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Six-Month U.S. Treasury Bill Index | Class B Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 2.13%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Enhanced Income Fund | Six-Month U.S. Treasury Bill Index | Institutional Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 2.94%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Six-Month U.S. Treasury Bill Index | Administration Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Administration Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 2.94%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | One-Year U.S. Treasury Note Index | Class A Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 3.26%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | One-Year U.S. Treasury Note Index | Class B Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 2.81%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Enhanced Income Fund | One-Year U.S. Treasury Note Index | Institutional Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 3.26%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | One-Year U.S. Treasury Note Index | Administration Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Administration Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 3.26%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Goldman Sachs Enhanced Income Fund Composite Index | Class A Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Enhanced Income Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 3.15%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Goldman Sachs Enhanced Income Fund Composite Index | Class B Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Enhanced Income Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 2.47%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 20, 2007
Goldman Sachs Enhanced Income Fund | Goldman Sachs Enhanced Income Fund Composite Index | Institutional Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Enhanced Income Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 3.15%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
Goldman Sachs Enhanced Income Fund | Goldman Sachs Enhanced Income Fund Composite Index | Administration Shares, Goldman Sachs Enhanced Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Administration Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Enhanced Income Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 3.15%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2000
GOLDMAN SACHS SHORT DURATION AND GOVERNMENT FIXED INCOME FUNDS | Goldman Sachs Ultra-Short Duration Government Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Ultra-Short Duration Government Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks to provide a high level of current income, consistent with low volatility of principal.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 500,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The Fund's "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Institutional, Service and/or Class IR 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 (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 175% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 175.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at time of purchase) (“Net Assets”) in securities issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), including securities representing an interest in or collateralized by adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”), and in repurchase agreements collateralized by U.S. Government Securities. The remainder of the Fund’s Net Assets (up to 20%) may be invested in other non-government securities. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The Fund’s investments in non-U.S. Government Securities must be rated AAA or Aaa by a nationally recognized statistical rating organization (“NRSRO”) at the time of purchase, or, if unrated, must be determined by the Investment Adviser to be of comparable quality. The fund’s target duration is 9 months plus or minus 1 year (the Fund’s duration approximates its price sensitivity to changes in interest rates).

Goldman Sachs’ Fixed Income Investing Philosophy:

Global fixed income markets are constantly evolving and are highly diverse—with myriad countries, currencies, sectors, issuers and securities. We believe that inefficiencies in these complex markets cause bond prices to diverge from their fair value. To capitalize on these inefficiencies and generate consistent risk-adjusted performance, we believe it is critical to:

• Thoughtfully combine diversified sources of return by employing multiple strategies

• Take a global perspective to uncover relative value opportunities

• Employ focused specialist teams to identify short-term mis-pricings and incorporate long-term views

• Emphasize a risk-aware approach as we view risk management as both an offensive and defensive tool

• Build a strong team of skilled investors who excel on behalf of our clients
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk—The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Mortgage-Backed and/or Other Asset-Backed Risk—Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are not backed by the full faith and credit of the United States. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional, Service and Class IR Shares compare to those of broad-based securities market indices. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Institutional, Service and Class IR Shares compare to those of broad-based securities market indices.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was –0.02%.

Best Quarter

Q1 ’01 +2.05%

Worst Quarter

Q4 ’08 -1.70%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Institutional, Service and Class IR Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Institutional, Service and Class IR Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Ultra-Short Duration Government Fund | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 1.50%
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.22%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.22%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.87%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [27]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.74% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 224
3 Years rr_ExpenseExampleYear03 411
5 Years rr_ExpenseExampleYear05 612
10 Years rr_ExpenseExampleYear10 1,195
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 6.86%
2002 rr_AnnualReturn2002 2.75%
2003 rr_AnnualReturn2003 1.12%
2004 rr_AnnualReturn2004 1.37%
2005 rr_AnnualReturn2005 2.36%
2006 rr_AnnualReturn2006 4.68%
2007 rr_AnnualReturn2007 4.64%
2008 rr_AnnualReturn2008 (1.67%)
2009 rr_AnnualReturn2009 3.84%
2010 rr_AnnualReturn2010 0.19%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (0.02%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.05%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.70%)
Goldman Sachs Ultra-Short Duration Government Fund | Institutional Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.13%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.53%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [27]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.40% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 41
3 Years rr_ExpenseExampleYear03 157
5 Years rr_ExpenseExampleYear05 283
10 Years rr_ExpenseExampleYear10 652
Goldman Sachs Ultra-Short Duration Government Fund | Service Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.63%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.13%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.03%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [27]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.90% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 92
3 Years rr_ExpenseExampleYear03 315
5 Years rr_ExpenseExampleYear05 556
10 Years rr_ExpenseExampleYear10 1,248
Goldman Sachs Ultra-Short Duration Government Fund | Class IR Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.22%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.22%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.62%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.13%) [27]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.49% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 50
3 Years rr_ExpenseExampleYear03 185
5 Years rr_ExpenseExampleYear05 333
10 Years rr_ExpenseExampleYear10 762
Goldman Sachs Ultra-Short Duration Government Fund | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.26%)
5 Years rr_AverageAnnualReturnYear05 2.00%
10 Years rr_AverageAnnualReturnYear10 2.43%
Since Inception rr_AverageAnnualReturnSinceInception 3.53%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | Institutional Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.53%
5 Years rr_AverageAnnualReturnYear05 2.64%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 4.16%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1991
Goldman Sachs Ultra-Short Duration Government Fund | Service Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.03%
5 Years rr_AverageAnnualReturnYear05 2.14%
10 Years rr_AverageAnnualReturnYear10 2.48%
Since Inception rr_AverageAnnualReturnSinceInception 3.16%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 1997
Goldman Sachs Ultra-Short Duration Government Fund | Class IR Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.44%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 1.14%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Ultra-Short Duration Government Fund | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (1.44%)
5 Years rr_AverageAnnualReturnYear05 0.84%
10 Years rr_AverageAnnualReturnYear10 1.17%
Since Inception rr_AverageAnnualReturnSinceInception 1.91%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 (0.81%)
5 Years rr_AverageAnnualReturnYear05 1.03%
10 Years rr_AverageAnnualReturnYear10 1.32%
Since Inception rr_AverageAnnualReturnSinceInception 2.02%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | Six-Month U.S. Treasury Bill Index | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 3.78%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | Six-Month U.S. Treasury Bill Index | Institutional Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 3.94%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1991
Goldman Sachs Ultra-Short Duration Government Fund | Six-Month U.S. Treasury Bill Index | Service Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 2.78%
Since Inception rr_AverageAnnualReturnSinceInception 3.54%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 1997
Goldman Sachs Ultra-Short Duration Government Fund | Six-Month U.S. Treasury Bill Index | Class IR Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Six-Month U.S. Treasury Bill Index
1 Year rr_AverageAnnualReturnYear01 0.36%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 1.55%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Ultra-Short Duration Government Fund | One-Year U.S. Treasury Note Index | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.04%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | One-Year U.S. Treasury Note Index | Institutional Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.25%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1991
Goldman Sachs Ultra-Short Duration Government Fund | One-Year U.S. Treasury Note Index | Service Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05 3.30%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 3.80%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 1997
Goldman Sachs Ultra-Short Duration Government Fund | One-Year U.S. Treasury Note Index | Class IR Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel One-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 0.83%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 2.12%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Ultra-Short Duration Government Fund | Goldman Sachs Ultra-Short Duration Government Fund Composite Index | Class A Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Ultra-Short Duration Government Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 3.95%
Inception Date rr_AverageAnnualReturnInceptionDate May 15, 1995
Goldman Sachs Ultra-Short Duration Government Fund | Goldman Sachs Ultra-Short Duration Government Fund Composite Index | Institutional Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Ultra-Short Duration Government Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 4.11%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 17, 1991
Goldman Sachs Ultra-Short Duration Government Fund | Goldman Sachs Ultra-Short Duration Government Fund Composite Index | Service Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Ultra-Short Duration Government Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05 3.13%
10 Years rr_AverageAnnualReturnYear10 2.97%
Since Inception rr_AverageAnnualReturnSinceInception 3.71%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 1997
Goldman Sachs Ultra-Short Duration Government Fund | Goldman Sachs Ultra-Short Duration Government Fund Composite Index | Class IR Shares, Goldman Sachs Ultra-Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Goldman Sachs Ultra-Short Duration Government Fund Composite Index
1 Year rr_AverageAnnualReturnYear01 0.59%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 1.83%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS SHORT DURATION AND GOVERNMENT FIXED INCOME FUNDS | Goldman Sachs Short Duration Government Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Short Duration Government Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks a high level of current income
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock and secondarily, in seeking current income, may also consider the potential for capital appreciation.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $500,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 500,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within three years of purchase at a rate of 2.0% in the first year, declining to 1% in the third year, and eliminated thereafter. A CDSC of 0.65% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The Fund’s “Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation” have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service, and/or Class IR Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service and/or Class IR 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 (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 312% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 312.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in securities issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”) and in repurchase agreements collateralized by such securities. Substantially all of the Fund’s Net Assets will be invested in U.S. Government Securities and instruments based on U.S. Government Securities. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The Fund’s target duration is that of the Two-Year U.S. Treasury Note Index, plus or minus 1 year (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the past ten years, the duration of this index has been approximately 1.9 years.

Goldman Sachs’ Fixed Income Investing Philosophy:

Global fixed income markets are constantly evolving and are highly diverse—with myriad countries, currencies, sectors, issuers and securities. We believe that inefficiencies in these complex markets cause bond prices to diverge from their fair value. To capitalize on these inefficiencies and generate consistent risk-adjusted performance, we believe it is critical to:

• Thoughtfully combine diversified sources of return by employing multiple strategies

• Take a global perspective to uncover relative value opportunities

• Employ focused specialist teams to identify short-term mis-pricings and incorporate long-term views

• Emphasize a risk-aware approach as we view risk management as both an offensive and defensive tool

• Build a strong team of skilled investors who excel on behalf of our clients

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Liquidity Risk—The Fund may make investments that may be illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value accurately. Liquidity risk may also refer to the risk that the Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

Mortgage-Backed and/or Other Asset-Backed Risk—Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are not backed by the full faith and credit of the United States. It is possible that these issuers will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service and Class IR Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 0.57%.

Best Quarter

Q3 ’01 +3.66%

Worst Quarter

Q2 ’04 -1.09%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Short Duration Government Fund | Class A Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 1.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.87%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.03%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.84% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 234
3 Years rr_ExpenseExampleYear03 420
5 Years rr_ExpenseExampleYear05 622
10 Years rr_ExpenseExampleYear10 1,204
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 8.41%
2002 rr_AnnualReturn2002 6.50%
2003 rr_AnnualReturn2003 2.08%
2004 rr_AnnualReturn2004 1.11%
2005 rr_AnnualReturn2005 1.07%
2006 rr_AnnualReturn2006 3.97%
2007 rr_AnnualReturn2007 6.60%
2008 rr_AnnualReturn2008 7.98%
2009 rr_AnnualReturn2009 3.82%
2010 rr_AnnualReturn2010 1.97%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.57%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 3.66%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.09%)
Goldman Sachs Short Duration Government Fund | Class B Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 2.00% [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.62%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.18%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.44% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 347
3 Years rr_ExpenseExampleYear03 594
5 Years rr_ExpenseExampleYear05 864
10 Years rr_ExpenseExampleYear10 1,706
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 147
3 Years rr_ExpenseExampleNoRedemptionYear03 494
5 Years rr_ExpenseExampleNoRedemptionYear05 864
10 Years rr_ExpenseExampleNoRedemptionYear10 1,706
Goldman Sachs Short Duration Government Fund | Class C Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 0.65% [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.62%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.38%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.24% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 191
3 Years rr_ExpenseExampleYear03 474
5 Years rr_ExpenseExampleYear05 846
10 Years rr_ExpenseExampleYear10 1,890
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 126
3 Years rr_ExpenseExampleNoRedemptionYear03 474
5 Years rr_ExpenseExampleNoRedemptionYear05 846
10 Years rr_ExpenseExampleNoRedemptionYear10 1,890
Goldman Sachs Short Duration Government Fund | Institutional Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.07%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.07%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.53%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.03%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.50% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 51
3 Years rr_ExpenseExampleYear03 167
5 Years rr_ExpenseExampleYear05 293
10 Years rr_ExpenseExampleYear10 662
Goldman Sachs Short Duration Government Fund | Service Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.57%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.07%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.03%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.03%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.00% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 102
3 Years rr_ExpenseExampleYear03 325
5 Years rr_ExpenseExampleYear05 566
10 Years rr_ExpenseExampleYear10 1,257
Goldman Sachs Short Duration Government Fund | Class IR Shares, Goldman Sachs Short Duration Government Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [28]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.46%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.16%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.62%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.03%) [29]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.59% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 60
3 Years rr_ExpenseExampleYear03 196
5 Years rr_ExpenseExampleYear05 343
10 Years rr_ExpenseExampleYear10 771
Goldman Sachs Short Duration Government Fund | Class A Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.41%
5 Years rr_AverageAnnualReturnYear05 4.53%
10 Years rr_AverageAnnualReturnYear10 4.16%
Since Inception rr_AverageAnnualReturnSinceInception 4.57%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Class B Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (2.57%)
5 Years rr_AverageAnnualReturnYear05 4.24%
10 Years rr_AverageAnnualReturnYear10 3.80%
Since Inception rr_AverageAnnualReturnSinceInception 4.33%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Class C Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.10%
5 Years rr_AverageAnnualReturnYear05 4.12%
10 Years rr_AverageAnnualReturnYear10 3.55%
Since Inception rr_AverageAnnualReturnSinceInception 3.82%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Short Duration Government Fund | Institutional Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.32%
5 Years rr_AverageAnnualReturnYear05 5.21%
10 Years rr_AverageAnnualReturnYear10 4.70%
Since Inception rr_AverageAnnualReturnSinceInception 5.87%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1988
Goldman Sachs Short Duration Government Fund | Service Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.82%
5 Years rr_AverageAnnualReturnYear05 4.69%
10 Years rr_AverageAnnualReturnYear10 4.17%
Since Inception rr_AverageAnnualReturnSinceInception 4.69%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 10, 1996
Goldman Sachs Short Duration Government Fund | Class IR Shares, Goldman Sachs Short Duration Government Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.23%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 4.80%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Short Duration Government Fund | Class A Shares, Goldman Sachs Short Duration Government Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (0.25%)
5 Years rr_AverageAnnualReturnYear05 3.34%
10 Years rr_AverageAnnualReturnYear10 2.86%
Since Inception rr_AverageAnnualReturnSinceInception 2.97%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Class A Shares, Goldman Sachs Short Duration Government Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 0.48%
5 Years rr_AverageAnnualReturnYear05 3.21%
10 Years rr_AverageAnnualReturnYear10 2.80%
Since Inception rr_AverageAnnualReturnSinceInception 2.93%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Class A Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.52%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Class B Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.52%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1997
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Class C Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.43%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Institutional Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 5.52%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1988
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Service Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05 4.38%
10 Years rr_AverageAnnualReturnYear10 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 4.62%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 10, 1996
Goldman Sachs Short Duration Government Fund | Two-Year U.S. Treasury Note Index | Class IR Shares, Goldman Sachs Short Duration Government Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Two-Year U.S. Treasury Note Index
1 Year rr_AverageAnnualReturnYear01 2.28%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 3.53%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS SHORT DURATION AND GOVERNMENT FIXED INCOME FUNDS | Goldman Sachs Inflation Protected Securities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Inflation Protected Securities Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks real return consistent with preservation of capital.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge (“CDSC”) of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The Fund’s “Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation” have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class C, Institutional, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class C, Institutional, Class IR and/or Class R 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 (except that the Example incorporates the management fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 211% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 211.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at time of purchase) (“Net Assets”) in inflation protected securities (“IPS”) of varying maturities issued by the U.S. Treasury (“TIPS”) and other U.S. and non-U.S. Government agencies and corporations (“CIPS”). IPS are designed to provide inflation protection to investors. The U.S. Treasury uses the Consumer Price Index for Urban Consumers (the “CPIU”) as the measurement of inflation, while other issuers of IPS may use other indices as the measure of inflation. IPS are income-generating instruments whose interest and principal payments are adjusted for inflation—a sustained increase in prices that erodes the purchasing power of money. The inflation adjustment, which is typically applied monthly to the principal of the bond, follows a designated inflation index, such as the CPIU. A fixed coupon rate is applied to the inflation-adjusted principal so that as inflation rises, both the principal value and the interest payments increase. This can provide investors with a hedge against inflation, as it helps preserve the purchasing power of an investment. Because of this inflation adjustment feature, inflation protected bonds typically have lower yields than conventional fixed-rate bonds.

The remainder of the Fund’s Net Assets (up to 20%) may be invested in other fixed income securities, including securities issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”), asset-backed securities, mortgage-backed securities, corporate securities, non-investment grade fixed income securities and securities issued by foreign corporate and governmental issuers.

The Fund’s target duration is that of the Barclays Capital U.S. TIPS Index, plus or minus 1-2 years (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the past ten years, the duration of this index has ranged between 0.40 and 7.30 years.

Goldman Sachs’ Fixed Income Investing Philosophy:

Global fixed income markets are constantly evolving and are highly diverse—with myriad countries, currencies, sectors, issuers and securities. We believe that inefficiencies in these complex markets cause bond prices to diverge from their fair value. To capitalize on these inefficiencies and generate consistent risk-adjusted performance, we believe it is critical to:

• Thoughtfully combine diversified sources of return by employing multiple strategies

• Take a global perspective to uncover relative value opportunities

• Employ focused specialist teams to identify short-term mis-pricings and incorporate long-term views

• Emphasize a risk-aware approach as we view risk management as both an offensive and defensive tool

• Build a strong team of skilled investors who excel on behalf of our clients

Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

CPIU Measurement Risk—The CPIU is a measurement of changes in the cost of living, made up of components such as housing, food, transportation and energy. There can be no assurance that the CPIU will accurately measure the real rate of inflation in the prices of goods and services, which may affect the valuation of the Inflation Protected Securities Fund.

Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Deflation Risk—The Inflation Protected Securities Fund will be subject to the risk that prices throughout the economy may decline over time, resulting in “deflation”. If this occurs, the principal and income of inflation-protected fixed income securities held by the Fund would likely decline in price, which could result in losses for the Fund.

Inflation Protected Securities Risk—The value of IPS generally fluctuates in response to changes in real interest rates, which are in turn tied to the relationship between nominal interest rates and the rate of inflation. If nominal interest rates increased at a faster rate than inflation, real interest rates might rise, leading to a decrease in the value of IPS. The market for IPS may be less developed or liquid, and more volatile, than certain other securities markets.

Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Tax Consequences Risk—The Fund will be subject to the risk that adjustments for inflation to the principal amount of an inflation indexed bond may give rise to original issue discount, which will be includable in the Fund’s gross income.

U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are not backed by the full faith and credit of the United States. It is possible that these issuers will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C, Institutional, Class IR and Class R Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class C, Institutional, Class IR and Class R Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 5.34%.

Best Quarter

Q1 ’08 +5.99%

Worst Quarter

Q3 ’08 -3.45%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class C, Institutional and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class C, Institutional and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Inflation Protected Securities Fund | Class A Shares, Goldman Sachs Inflation Protected Securities Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.83%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.21%) [30]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.62% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 436
3 Years rr_ExpenseExampleYear03 610
5 Years rr_ExpenseExampleYear05 798
10 Years rr_ExpenseExampleYear10 1,343
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (1.37%)
2009 rr_AnnualReturn2009 10.36%
2010 rr_AnnualReturn2010 5.94%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.34%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.99%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (3.45%)
Goldman Sachs Inflation Protected Securities Fund | Class C Shares, Goldman Sachs Inflation Protected Securities Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.58%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.21%) [30]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.37% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 239
3 Years rr_ExpenseExampleYear03 478
5 Years rr_ExpenseExampleYear05 841
10 Years rr_ExpenseExampleYear10 1,861
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 139
3 Years rr_ExpenseExampleNoRedemptionYear03 478
5 Years rr_ExpenseExampleNoRedemptionYear05 841
10 Years rr_ExpenseExampleNoRedemptionYear10 1,861
Goldman Sachs Inflation Protected Securities Fund | Institutional Shares, Goldman Sachs Inflation Protected Securities Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.49%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.21%) [30]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.28% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 29
3 Years rr_ExpenseExampleYear03 136
5 Years rr_ExpenseExampleYear05 253
10 Years rr_ExpenseExampleYear10 596
Goldman Sachs Inflation Protected Securities Fund | Class IR Shares, Goldman Sachs Inflation Protected Securities Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.58%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.21%) [30]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.37% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 38
3 Years rr_ExpenseExampleYear03 165
5 Years rr_ExpenseExampleYear05 303
10 Years rr_ExpenseExampleYear10 706
Goldman Sachs Inflation Protected Securities Fund | Class R Shares, Goldman Sachs Inflation Protected Securities Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [10]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.25%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.08%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.21%) [30]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.87% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 89
3 Years rr_ExpenseExampleYear03 323
5 Years rr_ExpenseExampleYear05 575
10 Years rr_ExpenseExampleYear10 1,298
Goldman Sachs Inflation Protected Securities Fund | Class A Shares, Goldman Sachs Inflation Protected Securities Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.01%
Since Inception rr_AverageAnnualReturnSinceInception 4.91%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Class C Shares, Goldman Sachs Inflation Protected Securities Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.09%
Since Inception rr_AverageAnnualReturnSinceInception 5.41%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Institutional Shares, Goldman Sachs Inflation Protected Securities Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 6.29%
Since Inception rr_AverageAnnualReturnSinceInception 6.56%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Class IR Shares, Goldman Sachs Inflation Protected Securities Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 6.20%
Since Inception rr_AverageAnnualReturnSinceInception 4.90%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Inflation Protected Securities Fund | Class R Shares, Goldman Sachs Inflation Protected Securities Fund | Returns
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Returns
1 Year rr_AverageAnnualReturnYear01 5.67%
Since Inception rr_AverageAnnualReturnSinceInception 4.43%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Inflation Protected Securities Fund | Class A Shares, Goldman Sachs Inflation Protected Securities Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (0.27%)
Since Inception rr_AverageAnnualReturnSinceInception 3.64%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Class A Shares, Goldman Sachs Inflation Protected Securities Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 1.34%
Since Inception rr_AverageAnnualReturnSinceInception 3.47%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Barclays Capital U.S. TIPS Index | Class A Shares, Goldman Sachs Inflation Protected Securities Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. TIPS Index
1 Year rr_AverageAnnualReturnYear01 6.31%
Since Inception rr_AverageAnnualReturnSinceInception 6.40%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Barclays Capital U.S. TIPS Index | Class C Shares, Goldman Sachs Inflation Protected Securities Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. TIPS Index
1 Year rr_AverageAnnualReturnYear01 6.31%
Since Inception rr_AverageAnnualReturnSinceInception 6.40%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Barclays Capital U.S. TIPS Index | Institutional Shares, Goldman Sachs Inflation Protected Securities Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. TIPS Index
1 Year rr_AverageAnnualReturnYear01 6.31%
Since Inception rr_AverageAnnualReturnSinceInception 6.40%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 31, 2007
Goldman Sachs Inflation Protected Securities Fund | Barclays Capital U.S. TIPS Index | Class IR Shares, Goldman Sachs Inflation Protected Securities Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. TIPS Index
1 Year rr_AverageAnnualReturnYear01 6.31%
Since Inception rr_AverageAnnualReturnSinceInception 4.76%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Inflation Protected Securities Fund | Barclays Capital U.S. TIPS Index | Class R Shares, Goldman Sachs Inflation Protected Securities Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Barclays Capital U.S. TIPS Index
1 Year rr_AverageAnnualReturnYear01 6.31%
Since Inception rr_AverageAnnualReturnSinceInception 4.76%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
GOLDMAN SACHS SHORT DURATION AND GOVERNMENT FIXED INCOME FUNDS | Goldman Sachs Government Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Goldman Sachs Government Income Fund—Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks a high level of current income, consistent with safety of principal.
Fees and Expenses of the Fund gst822977_FundFeesAndExpensesAbstract  
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 on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint Discounts gst822977_ExpenseBreakpointDiscountsAbstract  
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 65 of this Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-139 of the Fund’s Statement of Additional Information (“SAI”).
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge (“CDSC”) is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 29, 2012
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The Fund’s “Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation” have been restated to reflect the fee waiver and expense limitation currently in effect.
Expense Example rr_ExpenseExampleAbstract  
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R Shares of the Fund for the time periods indicated and then redeem all of your Class A, Class B, Class C, Institutional, Service, Class IR and/or Class R 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 (except that the Example incorporates the expense limitation arrangement for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover gst822977_PortfolioTurnoverAltAbstract  
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 instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Fund and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Fund’s performance. The Fund’s portfolio turnover rate for the fiscal year ended March 31, 2011 was 545% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 545.00%
Strategy [Heading] rr_StrategyHeading Principal Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) (“Net Assets”) in securities issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored enterprises (“U.S. Government Securities”) and in repurchase agreements collateralized by such securities. The remainder of the Fund’s Net Assets may be invested in non-government securities such as privately issued adjustable rate and fixed rate mortgage loans or other mortgage-related securities (“Mortgage-Backed Securities”), asset-backed securities and corporate securities. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities.

The Fund’s investments in non-U.S. Government Securities must be rated AAA or Aaa by a nationally recognized statistical rating organization (“NRSRO”) at the time of purchase, or, if unrated, must be determined by the Investment Adviser to be of comparable quality. The Fund’s target duration is that of the Barclays Capital Government/Mortgage Index, plus or minus one year (the Fund’s duration approximates its price sensitivity to changes in interest rates), and over the past ten years, the duration of this index has ranged between 2.85 and 4.79 years.

Goldman Sachs’ Fixed Income Investing Philosophy:

Global fixed income markets are constantly evolving and are highly diverse—with myriad countries, currencies, sectors, issuers and securities. We believe that inefficiencies in these complex markets cause bond prices to diverge from their fair value. To capitalize on these inefficiencies and generate consistent risk-adjusted performance, we believe it is critical to:

• Thoughtfully combine diversified sources of return by employing multiple strategies

• Take a global perspective to uncover relative value opportunities

• Employ focused specialist teams to identify short-term mis-pricings and incorporate long-term views

• Emphasize a risk-aware approach as we view risk management as both an offensive and defensive tool

• Build a strong team of skilled investors who excel on behalf of our clients
Risk [Heading] rr_RiskHeading Principal Risks of the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. The Fund should not be relied upon as a complete investment program. There can be no assurance that the Fund will achieve its investment objective.

Credit/Default Risk—An issuer or guarantor of fixed income securities held by the Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal. Additionally, the credit quality of securities may deteriorate rapidly, which may impair the Fund’s liquidity and cause significant net asset value (“NAV”) deterioration. To the extent that the Fund holds non-investment grade fixed income securities, these risks may be more pronounced.

Derivatives Risk—Loss may result from the Fund’s investments in options, futures, forwards, swaps, options on swaps, structured securities and other derivative instruments. These instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.

Interest Rate Risk—When interest rates increase, fixed income securities held by the Fund will generally decline in value. Long-term fixed income securities will normally have more price volatility because of this risk than short-term fixed income securities.

Mortgage-Backed and/or Other Asset-Backed Risk—Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing the Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-Backed Securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with Mortgage-Backed Securities, as well as risks associated with the nature and servicing of the assets backing the securities.

U.S. Government Securities Risk—The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks chartered or sponsored by Acts of Congress are not backed by the full faith and credit of the United States. It is possible that these issuers will not have the funds to meet their payment obligations in the future.
Risk Lose Money [Text] rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
Performance gst822977_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.

The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Class A Shares from year to year; and (b) how the average annual total returns of the Fund’s Class A, Class B, Class C, Institutional, Service, Class IR and Class R Shares compare to those of a broad-based securities market index.
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 Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available at no cost at www.goldmansachsfunds.com/performance or by calling the appropriate phone number on the back cover of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.goldmansachsfunds.com/performance
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart (including “Best Quarter” and “Worst Quarter” information) does not reflect the sales loads applicable to Class A Shares. If the sales loads were reflected, returns would be less. Performance reflects expense limitations in effect.
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading TOTAL RETURN CALENDAR YEAR (CLASS A)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

The total return for Class A Shares for the six-month period ended June 30, 2011 was 1.97%.

Best Quarter

Q3 ‘01 +4.40%

Worst Quarter

Q2 ’04 -1.83%
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Caption rr_AverageAnnualReturnCaption AVERAGE ANNUAL TOTAL RETURNS For the period ended December 31, 2010
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary. After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold 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 The after-tax returns are for Class A Shares only. The after-tax returns for Class B, Class C, Institutional, Service and Class IR Shares, and returns for Class R Shares (which are offered exclusively to retirement plans), will vary.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest 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. In addition, the after-tax returns shown are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Goldman Sachs Government Income Fund | Class A Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class A
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class A
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.20%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.20%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.99%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.91% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class A Shares
1 Year rr_ExpenseExampleYear01 464
3 Years rr_ExpenseExampleYear03 671
5 Years rr_ExpenseExampleYear05 894
10 Years rr_ExpenseExampleYear10 1,536
ANNUAL TOTAL RETURN rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 7.36%
2002 rr_AnnualReturn2002 9.46%
2003 rr_AnnualReturn2003 3.12%
2004 rr_AnnualReturn2004 3.68%
2005 rr_AnnualReturn2005 2.06%
2006 rr_AnnualReturn2006 3.79%
2007 rr_AnnualReturn2007 6.90%
2008 rr_AnnualReturn2008 4.99%
2009 rr_AnnualReturn2009 4.61%
2010 rr_AnnualReturn2010 4.82%
Year to Date Return, Label rr_YearToDateReturnLabel total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2011
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 1.97%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2001
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.40%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.83%)
Goldman Sachs Government Income Fund | Class B Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class B
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class B
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.20%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.20%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.74%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.66% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class B Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 669
3 Years rr_ExpenseExampleYear03 840
5 Years rr_ExpenseExampleYear05 1,136
10 Years rr_ExpenseExampleYear10 1,847
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class B Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 169
3 Years rr_ExpenseExampleNoRedemptionYear03 540
5 Years rr_ExpenseExampleNoRedemptionYear05 936
10 Years rr_ExpenseExampleNoRedemptionYear10 1,847
Goldman Sachs Government Income Fund | Class C Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class C
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class C
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.20%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.20%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.74%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.66% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class C Shares
Expense Example, By Year, Caption [Text] rr_ExpenseExampleByYearCaption Assuming complete redemption at end of period
1 Year rr_ExpenseExampleYear01 269
3 Years rr_ExpenseExampleYear03 540
5 Years rr_ExpenseExampleYear05 936
10 Years rr_ExpenseExampleYear10 2,045
Expense Example, No Redemption, By Year, Column [Text] rr_ExpenseExampleNoRedemptionByYearColumnName Class C Shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Assuming no redemption
1 Year rr_ExpenseExampleNoRedemptionYear01 169
3 Years rr_ExpenseExampleNoRedemptionYear03 540
5 Years rr_ExpenseExampleNoRedemptionYear05 936
10 Years rr_ExpenseExampleNoRedemptionYear10 2,045
Goldman Sachs Government Income Fund | Institutional Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Institutional
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Institutional
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.11%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.11%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.65%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.57% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Institutional Shares
1 Year rr_ExpenseExampleYear01 58
3 Years rr_ExpenseExampleYear03 200
5 Years rr_ExpenseExampleYear05 354
10 Years rr_ExpenseExampleYear10 803
Goldman Sachs Government Income Fund | Service Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Service
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Service
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.61%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets 0.25%
All Other Expenses rr_Component3OtherExpensesOverAssets 0.11%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.07% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Service Shares
1 Year rr_ExpenseExampleYear01 109
3 Years rr_ExpenseExampleYear03 357
5 Years rr_ExpenseExampleYear05 625
10 Years rr_ExpenseExampleYear10 1,390
Goldman Sachs Government Income Fund | Class IR Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class IR
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class IR
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.20%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.20%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.74%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 0.66% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class IR Shares
1 Year rr_ExpenseExampleYear01 67
3 Years rr_ExpenseExampleYear03 229
5 Years rr_ExpenseExampleYear05 404
10 Years rr_ExpenseExampleYear10 911
Goldman Sachs Government Income Fund | Class R Shares, Goldman Sachs Government Income Fund
  
Shareholder Fees rr_ShareholderFeesAbstract  
Shareholder Fees Column [Text] rr_ShareholderFeesColumnName Class R
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 original purchase price or sale proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Annual Fund Operating Expenses rr_OperatingExpensesAbstract  
Operating Expenses Column [Text] rr_OperatingExpensesColumnName Class R
Management Fees rr_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.20%
Service Fees rr_Component1OtherExpensesOverAssets none
Shareholder Administration Fees rr_Component2OtherExpensesOverAssets none
All Other Expenses rr_Component3OtherExpensesOverAssets 0.20%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.24%
Fee Waiver and Expense Limitation rr_FeeWaiverOrReimbursementOverAssets (0.08%) [31]
Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation rr_NetExpensesOverAssets 1.16% [19]
Expense Example rr_ExpenseExampleAbstract  
Expense Example, By Year, Column [Text] rr_ExpenseExampleByYearColumnName Class R Shares
1 Year rr_ExpenseExampleYear01 118
3 Years rr_ExpenseExampleYear03 386
5 Years rr_ExpenseExampleYear05 673
10 Years rr_ExpenseExampleYear10 1,493
Goldman Sachs Government Income Fund | Class A Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 0.87%
5 Years rr_AverageAnnualReturnYear05 4.22%
10 Years rr_AverageAnnualReturnYear10 4.66%
Since Inception rr_AverageAnnualReturnSinceInception 5.57%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 10, 1993
Goldman Sachs Government Income Fund | Class B Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.16%)
5 Years rr_AverageAnnualReturnYear05 3.82%
10 Years rr_AverageAnnualReturnYear10 4.41%
Since Inception rr_AverageAnnualReturnSinceInception 5.28%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Goldman Sachs Government Income Fund | Class C Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 3.00%
5 Years rr_AverageAnnualReturnYear05 4.24%
10 Years rr_AverageAnnualReturnYear10 4.27%
Since Inception rr_AverageAnnualReturnSinceInception 4.66%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Institutional Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.11%
5 Years rr_AverageAnnualReturnYear05 5.36%
10 Years rr_AverageAnnualReturnYear10 5.44%
Since Inception rr_AverageAnnualReturnSinceInception 5.83%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Service Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.66%
5 Years rr_AverageAnnualReturnYear05 4.86%
10 Years rr_AverageAnnualReturnYear10 4.92%
Since Inception rr_AverageAnnualReturnSinceInception 5.31%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Class IR Shares, Goldman Sachs Government Income Fund | Returns Before Taxes
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Returns Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.08%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 5.02%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Government Income Fund | Class R Shares, Goldman Sachs Government Income Fund | Returns
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Returns
1 Year rr_AverageAnnualReturnYear01 4.57%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 4.55%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Government Income Fund | Class A Shares, Goldman Sachs Government Income Fund | Returns After Taxes on Distributions
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (0.68%)
5 Years rr_AverageAnnualReturnYear05 2.68%
10 Years rr_AverageAnnualReturnYear10 3.09%
Since Inception rr_AverageAnnualReturnSinceInception 3.50%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 10, 1993
Goldman Sachs Government Income Fund | Class A Shares, Goldman Sachs Government Income Fund | Returns After Taxes on Distributions and Sale of Fund Shares
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Returns After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 0.82%
5 Years rr_AverageAnnualReturnYear05 2.72%
10 Years rr_AverageAnnualReturnYear10 3.07%
Since Inception rr_AverageAnnualReturnSinceInception 3.48%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 10, 1993
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Class A Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class A Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05 5.88%
10 Years rr_AverageAnnualReturnYear10 5.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.16%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 10, 1993
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Class B Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class B Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05 5.88%
10 Years rr_AverageAnnualReturnYear10 5.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.26%
Inception Date rr_AverageAnnualReturnInceptionDate May 01, 1996
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Class C Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class C Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05 5.88%
10 Years rr_AverageAnnualReturnYear10 5.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.05%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Institutional Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05 5.88%
10 Years rr_AverageAnnualReturnYear10 5.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.05%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Service Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Service Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05 5.88%
10 Years rr_AverageAnnualReturnYear10 5.64%
Since Inception rr_AverageAnnualReturnSinceInception 6.05%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 15, 1997
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Class IR Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class IR Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 5.71%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
Goldman Sachs Government Income Fund | Barclays Capital Government/Mortgage Index | Class R Shares, Goldman Sachs Government Income Fund
  
AVERAGE ANNUAL TOTAL RETURNS rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class R Shares
Label rr_AverageAnnualReturnLabel Barclays Capital Government/Mortgage Index
1 Year rr_AverageAnnualReturnYear01 5.41%
5 Years rr_AverageAnnualReturnYear05  
10 Years rr_AverageAnnualReturnYear10  
Since Inception rr_AverageAnnualReturnSinceInception 5.71%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 30, 2007
[1] A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter. A CDSC of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
[2] The Investment Adviser has agreed to reduce or limit "All Other Expenses" (excluding management fees, distribution and service fees, service fees, shareholder administration fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets, through at least July 29, 2012, and prior to such date, the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees. Additionally, the Transfer Agent has agreed to waive a portion of its transfer agency fee attributable to Class A, Class B, Class C, and Class IR Shares of the Fund such that the "Other Expenses" amounts for those share classes do not exceed 0.08%. This arrangement will remain in effect through at least July 29, 2012, and prior to such date, the Transfer Agent may not terminate the arrangement without the approval of the Board of Trustees.
[3] "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
[4] The Investment Adviser has agreed to (i) reduce or limit "All Other Expenses" (excluding management fees, distribution and service fees, service fees, shareholder administration fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets, and (ii) waive a portion of its management fee in order to achieve an effective net management fee rate of 0.40% as an annual percentage rate of average daily net assets of the Fund. These arrangements will remain in effect through at least July 29, 2012, and prior to such date, the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[5] Return for the Index is calculated from August 1, 1993, the commencement of the month nearest to the Class A Shares inception date.
[6] A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within three years of purchase, declining from a rate of 2% in the first year to 1% in the third year, and eliminated thereafter. A CDSC of 0.65% is imposed on Class C Shares redeemed within 12 months of purchase.
[7] The Investment Adviser has agreed to (i) waive a portion of its Management Fee in order to achieve an effective rate of 0.35% as an annual percentage rate of average daily net assets of the Fund and (ii) reduce or limit "All Other Expenses" (excluding management fees, distribution and service fees, service fees, shareholder administration fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets, through at least July 29, 2012, and prior to such date, the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees. In addition, Goldman, Sachs & Co. ("Goldman Sachs") has agreed to (i) waive a portion of the distribution and service (12b-1) fees equal to 0.15% of the average daily net assets attributable to Class B Shares of the Fund, and (ii) waive a portion of the distribution and service (12b-1) fees equal to 0.35% of the average daily net assets attributable to Class C Shares of the Fund. Each arrangement will remain in effect through at least July 29, 2012, and prior to such date Goldman Sachs may not terminate the arrangements without the approval of the Board of Trustees.
[8] Return for the Index is calculated from September 1, 1997, the commencement of the month nearest to the Class C Shares inception date.
[9] Return for the Index is calculated from October 1, 1994, the commencement of the month nearest to the Service Shares inception date.
[10] A contingent deferred sales charge ("CDSC") of 1% is imposed on Class C Shares redeemed within 12 months of purchase.
[11] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.044% of the Fund's average daily net assets through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[12] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.024% of the Fund's average daily net assets through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[13] "Other Expenses" are based on estimated amounts for the current fiscal year.
[14] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.104% of the Fund's average daily net assets, through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[15] The "Other Expenses" for Class IR Shares are based on estimated amounts for the current fiscal year.
[16] The "Annual Fund Operating Expenses" of the Fund's Class A and Institutional Shares have been restated to reflect current fees.
[17] The Investment Adviser has agreed to (i) waive a portion of its management fee in order to achieve an effective net management rate of 0.33% as an annual percentage rate of the average daily net assets of the Fund, and (ii) reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets. These arrangements will remain in effect through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangements without the approval of the Board of Trustees.
[18] The Investment Adviser has agreed to (i) waive a portion of its management fee in order to achieve an effective net management fee rate of 0.80% as an annual percentage rate of the average daily net assets of the Fund, and (ii) reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.074% of the Fund's average daily net assets. These arrangements will remain in effect through at least July 29, 2012, and prior to such date, the Investment Adviser may not terminate the arrangements without the approval of the Board of Trustees.
[19] The Fund's "Total Annual Fund Operating Expenses After Fee Waiver and Expense Limitation" have been restated to reflect the fee waiver and expense limitation currently in effect.
[20] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets through at least July 29, 2012, and prior to such date, the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[21] Calculated from September 1, 1991 to December 31, 2010.
[22] Calculated from September 1, 1997 to December 31, 2010.
[23] Calculated from April 1, 1997 to December 31, 2010.
[24] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses, exclusive of any custody and transfer agent fee credit reductions) to 0.054% of the Fund's average daily net assets through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[25] A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within six years of purchase, declining from a rate of 5% in the first year to 1% in the sixth year, and eliminated thereafter.
[26] The Investment Adviser has agreed to waive a portion of its management fee in order to achieve an effective rate of 0.20% as an annual percentage rate of the Fund's average daily net assets through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[27] The Investment Adviser has agreed to (i) reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.054% of the Fund's average daily net assets and (ii) waive a portion of its management fee in order to achieve an effective net management fee rate of 0.31% as an annual percentage rate of the average daily net assets of the Fund. These arrangements will remain in effect through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.
[28] A contingent deferred sales charge ("CDSC") is imposed on Class B Shares redeemed within three years of purchase at a rate of 2.0% in the first year, declining to 1% in the third year, and eliminated thereafter. A CDSC of 0.65% is imposed on Class C Shares redeemed within 12 months of purchase.
[29] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees. In addition, Goldman, Sachs & Co. ("Goldman Sachs") has agreed to (i) waive a portion of the distribution and service (12b-1) fees equal to 0.15% of the average daily net assets attributable to Class B Shares of the Fund, and (ii) waive a portion of the distribution and service (12b-1) fees equal to 0.35% of the average daily net assets attributable to Class C Shares of the Fund. Each arrangement will remain in effect through at least July 29, 2012, and prior to such date Goldman Sachs may not terminate the arrangements without the approval of the Board of Trustees.
[30] The Investment Adviser has agreed to (i) reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.044% of the Fund's average daily net assets and (ii) waive a portion of its management fee in order to achieve an effective rate of 0.20% as an annual percentage rate of the Fund's average daily net assets. Each arrangement will remain in effect through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangements without the approval of the Board of Trustees.
[31] The Investment Adviser has agreed to (i) reduce or limit "Other Expenses" (excluding management fees, distribution and service fees, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees and litigation, indemnification, shareholder meeting and other extraordinary expenses exclusive of any custody and transfer agent fee credit reductions) to 0.004% of the Fund's average daily net assets and (ii) waive a portion of its management fee in order to achieve an effective net management fee rate of 0.53% as an annual percentage rate of average daily net assets of the Fund. These arrangements will remain in effect through at least July 29, 2012, and prior to such date the Investment Adviser may not terminate the arrangement without the approval of the Board of Trustees.