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Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Fund Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The fund seeks long-term growth of capital.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in certain funds in the Dreyfus Family of Funds. More information about these and other discounts is available from your financial professional and in the Shareholder Guide section beginning on page 10 of the prospectus and in the How to Buy Shares section and the Additional Information About How to Buy Shares section beginning on page II-1 and page III-1, respectively, of the fund's Statement of Additional Information.

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2016-06-01

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). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 89.36% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

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 certain funds in the Dreyfus Family of Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The 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 the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the expense limitation by The Dreyfus Corporation and The Boston Company Asset Management, LLC. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

You would pay the following expenses if you did not redeem your shares:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

To pursue its goal, the fund normally invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities of companies that are located in the foreign countries represented in the Morgan Stanley Capital International Europe, Australasia and Far East (MSCI EAFE®) Index and Canada. The fund may invest up to 20% of its assets in securities of issuers located in emerging market countries. The portfolio managers employ a bottom-up investment approach using proprietary quantitative models and traditional qualitative analysis to identify attractive stocks. The portfolio managers seek to allocate country weights generally in accordance with the MSCI EAFE Index, but deviations from the MSCI EAFE Index country weightings may occur. The portfolio managers use the sector allocations of the MSCI EAFE Index as a guide, but allocations may differ from those of the MSCI EAFE Index. The fund's stock selection process is designed to produce a diversified portfolio that, relative to the MSCI EAFE Index, has a below-average price/earnings ratio and an above-average earnings growth trend.

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the fund is not a bank deposit. It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. It is not a complete investment program. The fund's share price fluctuates, sometimes dramatically, which means you could lose money.

·

Risks of stock investing. Stocks generally fluctuate more in value than bonds and may decline significantly over short time periods. There is the chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising prices and falling prices. The market value of a stock may decline due to general market conditions or because of factors that affect the particular company or the company's industry.

·

Foreign investment risk. To the extent the fund invests in foreign securities, the fund's performance will be influenced by political, social and economic factors affecting investments in foreign issuers. Special risks associated with investments in foreign issuers include exposure to currency fluctuations, less liquidity, less developed or less efficient trading markets, lack of comprehensive company information, political and economic instability and differing auditing and legal standards. Investments denominated in foreign currencies are subject to the risk that such currencies will decline in value relative to the U.S. dollar and affect the value of these investments held by the fund.

·

Emerging market risk. The securities of issuers located or doing substantial business in emerging market countries tend to be more volatile and less liquid than the securities of issuers located in countries with more mature economies. Emerging markets generally have less diverse and less mature economic structures and less stable political systems than those of developed countries. Investments in these countries may be subject to political, economic, legal, market and currency risks. The risks may include less protection of property rights and uncertain political and economic policies, the imposition of capital controls and/or foreign investment limitations by a country, nationalization of businesses and the imposition of sanctions by other countries, such as the United States.

·

Foreign currency risk. Investments in foreign currencies are subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedged positions, that the U.S. dollar will decline relative to the currency being hedged. Currency exchange rates may fluctuate significantly over short periods of time. Foreign currencies are also subject to risks caused by inflation, interest rates, budget deficits and low savings rates, political factors and government intervention and controls.

·

Liquidity risk. When there is little or no active trading market for specific types of securities, it can become more difficult to sell the securities in a timely manner at or near their perceived value. In such a market, the value of such securities and the fund's share price may fall dramatically. Investments in foreign securities, particularly those of issuers located in emerging markets, tend to have greater exposure to liquidity risk than domestic securities.

Risk Lose Money [Text]

rr_RiskLoseMoney

The fund's share price fluctuates, sometimes dramatically, which means you could lose money.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the fund is not a bank deposit. It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the performance of the fund's Class A shares from year to year. The table compares the average annual total returns of the fund's shares to those of a broad measure of market performance. The fund's past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. Sales charges, if any, are not reflected in the bar chart, and if those charges were included, returns would have been less than those shown. More recent performance information may be available at www.dreyfus.com.

Effective August 1, 2007, the fund commenced investing directly in portfolio securities. For the period February 1, 2003 to August 1, 2007, the fund operated as a "feeder fund" in a master/feeder fund arrangement, investing all of its investable assets in a "master portfolio" with the same investment objective and policies as the fund and the same investment adviser that is the fund's current investment adviser. These performance figures for the fund represent for such period the performance of the fund as a feeder fund. Performance figures for the master portfolio have not been adjusted to reflect the fund's operating expenses; if these expenses had been reflected, such performance would have been lower.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following bar chart and table provide some indication of the risks of investing in the fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.dreyfus.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The fund's past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Year-by-Year Total Returns as of 12/31 each year (%) Class A

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Sales charges, if any, are not reflected in the bar chart, and if those charges were included, returns would have been less than those shown.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter

Q2, 2009: 20.91%

Worst Quarter

Q4, 2008: -23.82%

The year-to-date total return of the fund's Class A shares as of March 31, 2015 is 5.40%.

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2015

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

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 the investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their 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 performance is shown only for Class A shares (based on the fund's performance as a feeder fund before August 1, 2007, adjusted to reflect the sales load applicable to the fund's Class A shares). After-tax performance of the fund's other share classes will vary.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax performance is shown only for Class A shares (based on the fund's performance as a feeder fund before August 1, 2007, adjusted to reflect the sales load applicable to the fund's Class A shares). After-tax performance of the fund's other share classes 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 the investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

For the fund's Class Y shares, periods prior to June 1, 2015 reflect the performance of the fund's Class I shares. Such performance figures have not been adjusted to reflect applicable class expenses.

rr_AverageAnnualReturnCaption

Average Annual Total Returns (as of 12/31/14)

MSCI EAFE® Index reflects no deduction for fees, expenses or taxes

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price)

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Management fees

rr_ManagementFeesOverAssets

Distribution (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses (including shareholder services fees)

rr_OtherExpensesOverAssets

^[2]

Total annual fund operating expenses

rr_ExpensesOverAssets

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[3]

Total annual fund operating expenses (after fee waiver and/or expense reimbursement)

rr_NetExpensesOverAssets

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Class A shares bought without an initial sales charge as part of an investment of $1 million or more may be charged a deferred sales charge of 1.00% if redeemed within one year.

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

Annual Return 2005

rr_AnnualReturn2005

Annual Return 2006

rr_AnnualReturn2006

Annual Return 2007

rr_AnnualReturn2007

Annual Return 2008

rr_AnnualReturn2008

Annual Return 2009

rr_AnnualReturn2009

Annual Return 2010

rr_AnnualReturn2010

Annual Return 2011

rr_AnnualReturn2011

Annual Return 2012

rr_AnnualReturn2012

Annual Return 2013

rr_AnnualReturn2013

Annual Return 2014

rr_AnnualReturn2014

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class A | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class A | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price)

rr_MaximumDeferredSalesChargeOverOther

Management fees

rr_ManagementFeesOverAssets

Distribution (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

Other expenses (including shareholder services fees)

rr_OtherExpensesOverAssets

^[2]

Total annual fund operating expenses

rr_ExpensesOverAssets

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[3]

Total annual fund operating expenses (after fee waiver and/or expense reimbursement)

rr_NetExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class I

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price)

rr_MaximumDeferredSalesChargeOverOther

none

Management fees

rr_ManagementFeesOverAssets

Distribution (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses (including shareholder services fees)

rr_OtherExpensesOverAssets

^[2]

Total annual fund operating expenses

rr_ExpensesOverAssets

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[3]

Total annual fund operating expenses (after fee waiver and/or expense reimbursement)

rr_NetExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price)

rr_MaximumDeferredSalesChargeOverOther

none

Management fees

rr_ManagementFeesOverAssets

Distribution (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses (including shareholder services fees)

rr_OtherExpensesOverAssets

^[2]

Total annual fund operating expenses

rr_ExpensesOverAssets

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

^[3]

Total annual fund operating expenses (after fee waiver and/or expense reimbursement)

rr_NetExpensesOverAssets

Other Expenses, New Fund, Based on Estimates [Text]

rr_OtherExpensesNewFundBasedOnEstimates

Other expenses for Class Y are based on estimated amounts for the current fiscal year.

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

[1]	Class A shares bought without an initial sales charge as part of an investment of $1 million or more may be charged a deferred sales charge of 1.00% if redeemed within one year.
[2]	Other expenses includes an administration fee of 0.10% payable to The Dreyfus Corporation. Other expenses for Class Y are based on estimated amounts for the current fiscal year.
[3]	The Dreyfus Corporation and The Boston Company Asset Management, LLC have contractually agreed to waive receipt of their fees and/or assume the direct expenses of the fund so that such expenses (excluding interest, brokerage commissions, commitment fees on borrowings and extraordinary expenses) do not exceed an annual rate of 1.12% for Class A shares, 1.90% for Class C shares, .85% for Class I shares and .85% for Class Y shares. With respect to Class A shares, Class C shares and Class I shares, this agreement will continue in effect, with respect to each class, until the fiscal year end following such time as the expenses are equal to or less than such annual rate for the applicable class. With respect to Class Y shares, this agreement will continue until June 1, 2016, after which the expense limitation can be terminated at any time.