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Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading AllianzGI Global Small-Cap Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund seeks long-term capital appreciation.

Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The tables below describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds that are part of the family of mutual funds sponsored by Allianz. More information about these and other discounts is available in the “Classes of Shares” section beginning on page 119 of the Fund’s statutory prospectus or from your financial advisor.

Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover.
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

 The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). The Fund’s portfolio turnover rate for the fiscal year ended June 30, 2013 was 108%. High levels of portfolio turnover may indicate higher transaction costs and may result in higher taxes for you if your Fund shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the Examples above, can adversely affect the Fund’s investment performance.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 108.00%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock For Class A shares, the CDSC is imposed only in certain circumstances where shares are purchased without a front-end sales charge at the time of purchase. For Class B shares, the maximum CDSC is imposed on shares redeemed in the first year, with CDSCs decreasing over time to zero for shares held longer. For Class C shares, the CDSC is imposed only on shares redeemed in the first year.
Expense Example [Heading] rr_ExpenseExampleHeading Examples.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

 The Examples are intended to help you compare the cost of investing in shares of the Fund with the costs of investing in other mutual funds. The Examples assume that you invest $10,000 in the noted class of shares for the time periods indicated, your investment has a 5% return each year, and the Fund’s operating expenses remain the same. The Examples also assume conversion of Class B shares to Class A shares after seven years. Although your actual costs may be higher or lower, the Examples show what your costs would be based on these assumptions.

Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Example: Assuming you redeem your shares at the end of each period
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Example: Assuming you do not redeem your shares
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its objective by normally investing at least 80% of its net assets (plus borrowings made for investment purposes) in companies with market capitalizations comparable to those of companies included in the MSCI World Small-Cap Index (between $61 million and $12.8 billion as of June 30, 2013). Under normal market and other conditions, the Fund expects to maintain a weighted-average market capitalization between 50% and 200% of the weighted-average market capitalization of the securities in the MSCI World Small-Cap Index, which as of June 30, 2013 would permit the Fund to maintain a weighted-average market capitalization ranging from $1.2 billion to $4.6 billion. The Fund normally invests in companies organized or headquartered in at least eight different countries (one of which may be the United States) and expects that the majority of its non-U.S. investments will normally be in Japan and Western Europe. The Fund will normally invest no more than 25% of its assets in issuers that are organized or headquartered in any one country outside the U.S., other than France, Germany, Japan and the United Kingdom. The Fund may invest up to 30% of its assets in companies organized or headquartered in emerging market countries (but no more than 10% in any one emerging market country). Regional portfolio managers in the United States, Europe and Asia collaborate to produce a portfolio that is believed likely to have the best investment opportunities from each of those regions. The allocation of Fund assets among these three regions is set from time to time and periodically adjusted through a collaborative effort among the most senior portfolio manager in the regions.


The portfolio managers in Europe and Asia develop forecasts of economic growth, inflation and interest rates that are used to help identify countries and other geographies within the applicable region that are likely to offer the best investment opportunities. The portfolio managers may consider the anticipated economic growth rate, political outlook, inflation rate, currency outlook and interest rate environment for the country and the region in which a company is located. The portfolio managers in Europe and Asia ordinarily look for the following characteristics: higher than average growth and strong potential for capital appreciation; substantial capacity for growth in revenue through either an expanding market or market share; a strong balance sheet; superior management; strong commitment to research and product development; and differentiated or superior products and services or a steady stream of new products and services.


The portfolio managers in the United States follow a disciplined, fundamental bottom-up research process focusing on North American companies with sustainable growth characteristics that are undergoing positive fundamental change. The portfolio managers look for what they believe to be the best risk-reward candidates within the investment universe, defined as equities that are expected to appreciate based on accelerating fundamental performance, rising expectations and related multiple expansion. Company-specific research includes industry and competitive analysis, revenue model analysis, profit analysis and balance sheet assessment. Once the portfolio managers in the United States believe that positive fundamental change is occurring and will likely lead to accelerating fundamental performance, they seek evidence that performance will be a longer-term sustainable trend. Lastly, these portfolio managers determine if the investment is timely with regard to relative valuation and price strength, exploiting stocks that are under-priced relative to their potential.


In addition to common stocks and other equity securities (such as preferred stocks, convertible securities and warrants), the Fund may invest in securities issued in initial public offerings (IPOs), and may utilize foreign currency exchange contracts, options, stock index futures contracts and other derivative instruments. Although the Fund did not invest significantly in derivative instruments as of the most recent fiscal year end, it may do so at any time.

Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return, are (in alphabetical order after the first six risks):


Market Risk: The Fund will be affected by factors influencing the U.S. or global economies and securities markets or relevant industries or sectors within them.

Issuer Risk: The Fund will be affected by factors specific to the issuers of securities and other instruments in which the Fund invests, including actual or perceived changes in the financial condition or business prospects of such issuers.

Equity Securities Risk: Equity securities may react more strongly to changes in an issuer’s financial condition or prospects than other securities of the same issuer.

Non-U.S. Investment Risk: Non-U.S. securities markets and issuers may be more volatile, smaller, less liquid, less transparent and subject to less oversight, particularly in emerging markets.

Emerging Markets Risk: Non-U.S. investment risk may be particularly high to the extent that the Fund invests in emerging market securities. These securities may present market, credit, currency, liquidity, legal, political, technical and other risks different from, or greater than, the risks of investing in developed countries.

Smaller Company Risk: Securities issued by smaller companies may be more volatile and present increased liquidity risk relative to securities issued by larger companies.

Credit and Counterparty Risk: An issuer or counterparty may default on obligations.

Currency Risk: The values of non-U.S. securities may fluctuate with currency exchange rates and exposure to non-U.S. currencies may subject the Fund to the risk that those currencies will decline in value relative to the U.S. dollar.

Derivatives Risk: Derivative instruments are complex, have different characteristics than their underlying assets and are subject to additional risks, including leverage, liquidity and valuation.

Focused Investment Risk: Focusing on a limited number of issuers, sectors, industries or geographic regions increases risk and volatility.

IPO Risk: Securities purchased in initial public offerings have no trading history, limited issuer information and increased volatility.

Leveraging Risk: Instruments and transactions that constitute leverage magnify gains or losses and increase volatility.

Liquidity Risk: The lack of an active market for investments may cause delay in disposition or force a sale below fair value.

Management Risk: The Fund will be affected by the allocation determinations, investment decisions and techniques of the Fund’s management.

Turnover Risk: High levels of portfolio turnover increase transaction costs and taxes and may lower investment performance.

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

The performance information below provides some indication of the risks of investing in the Fund by showing changes in its total return from year to year and by comparing the Fund’s average annual total returns with those of a broad-based market index and a performance average of similar mutual funds. The bar chart and the information to its right show performance of the Fund’s Class A shares, but do not reflect the impact of sales charges (loads). If they did, returns would be lower than those shown. Class B and Class C performance would be lower than Class A performance because of the lower expenses paid by Class A shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. For periods prior to the inception date of a share class, performance information shown for such class may be based on the performance of an older class of shares that dates back to the Fund’s inception, as adjusted to reflect certain fees and expenses paid by the newer class. Similarly, for periods prior to a reorganization of the Fund, in which a predecessor fund was merged into the Fund, the performance information is based on the performance of the predecessor fund, adjusted to reflect certain fees and expenses paid by the particular share class of the Fund. These adjustments generally result in estimated performance results that are higher or lower than the actual results of the predecessor class and/or the predecessor fund, as the case may be, due to differing levels of fees and expenses paid. Details regarding the calculation of the Fund’s class-by-class performance, including a discussion of any performance adjustments, are provided under “Additional Performance Information” in the Fund’s statutory prospectus and SAI. Past performance, before and after taxes, is not necessarily predictive of future performance. Visit us.allianzgi.com for more current performance information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The performance information below provides some indication of the risks of investing in the Fund by showing changes in its total return from year to year and by comparing the Fund's average annual total returns with those of a broad-based market index and a performance average of similar mutual funds.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress us.allianzgi.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance, before and after taxes, is not necessarily predictive of future performance.
Bar Chart [Heading] rr_BarChartHeading Calendar Year Total Returns - Class A
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart and the information to its right show performance of the Fund's Class A shares, but do not reflect the impact of sales charges (loads). If they did, returns would be lower than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
More Recent Return Information
1/1/13-6/30/13 14.39%
Highest and Lowest Quarter Returns
 (for periods shown in the bar chart)
Highest 04/01/2009-06/30/2009 26.18%
Lowest 10/01/2008-12/31/2008 -28.56%
Year to Date Return, Label rr_YearToDateReturnLabel More Recent Return Information
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2013
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 14.39%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.18%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (28.56%)
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Performance in the Average Annual Total Returns table reflects the impact of sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are estimated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns 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 After-tax returns are for Class A shares only. After-tax returns for other share classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

    After-tax returns are estimated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are for Class A shares only. After-tax returns for other share classes will vary.

Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (for periods ended 12/31/12)
MSCI World Small-Cap Index
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 17.55%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 2.46%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 11.72%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 7.10%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1996
Lipper Global Small-/Mid-Cap Funds Average
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 18.19%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 0.69%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 10.85%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.13%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1996
A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Contingent Deferred Sales Charge (CDSC) (Load) (as a percentage of the lower of original purchase price or NAV) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Management Fees rr_ManagementFeesOverAssets 1.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.61%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of eligible funds that are part of the family of mutual funds sponsored by Allianz.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 705
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,030
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,378
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,356
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 705
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,030
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,378
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,356
Annual Return 2003 rr_AnnualReturn2003 57.17%
Annual Return 2004 rr_AnnualReturn2004 22.36%
Annual Return 2005 rr_AnnualReturn2005 18.59%
Annual Return 2006 rr_AnnualReturn2006 20.24%
Annual Return 2007 rr_AnnualReturn2007 4.93%
Annual Return 2008 rr_AnnualReturn2008 (53.24%)
Annual Return 2009 rr_AnnualReturn2009 43.22%
Annual Return 2010 rr_AnnualReturn2010 30.72%
Annual Return 2011 rr_AnnualReturn2011 (5.48%)
Annual Return 2012 rr_AnnualReturn2012 20.55%
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 13.92%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (1.17%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 10.49%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.57%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1996
A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 13.92%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (1.19%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 10.35%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.69%
A | After Taxes on Distributions and Sale of Fund Shares
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 9.05%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (1.00%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 9.40%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.08%
B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Contingent Deferred Sales Charge (CDSC) (Load) (as a percentage of the lower of original purchase price or NAV) rr_MaximumDeferredSalesChargeOverOther 5.00% [1]
Management Fees rr_ManagementFeesOverAssets 1.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.36%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 739
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,036
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,460
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,422
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 239
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 736
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,260
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,422
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 14.64%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (1.20%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 10.45%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.57%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1996
C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Contingent Deferred Sales Charge (CDSC) (Load) (as a percentage of the lower of original purchase price or NAV) rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Management Fees rr_ManagementFeesOverAssets 1.35%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.01%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.36%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 339
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 736
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,260
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,696
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 239
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 736
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,260
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,696
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 18.65%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (0.80%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 10.28%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.16%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 1996
[1] For Class A shares, the CDSC is imposed only in certain circumstances where shares are purchased without a front-end sales charge at the time of purchase. For Class B shares, the maximum CDSC is imposed on shares redeemed in the first year, with CDSCs decreasing over time to zero for shares held longer. For Class C shares, the CDSC is imposed only on shares redeemed in the first year.