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Label Element Value
Dynamic Total Return Fund  
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 total return.
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 16 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.
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 165.55% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 165.55%
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 $ 50,000
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. 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 in instruments that provide investment exposure to global equity, bond, currency and commodity markets, and in fixed-income securities. The fund may invest in instruments that provide economic exposure to developed and, to a limited extent, emerging market issuers. The fund may invest up to 30% of its net assets in emerging market issuers and considers emerging market countries to be those included in the Morgan Stanley Capital International Emerging Markets Index. The fund will seek to achieve investment exposure to global equity, bond, currency and commodity markets primarily through long and short positions in futures, options, forward contracts, swap agreements or exchange-traded funds (ETFs), and normally will use economic leverage as part of its investment strategy. The fund also may invest in fixed-income securities, such as bonds, notes (including structured notes), and money market instruments, to provide exposure to bond markets and for liquidity and income, as well as hold cash. The fund may invest in bonds and other fixed-income securities of any maturity or duration. A bond's maturity is the length of time until the principal must be fully repaid with interest. Average effective portfolio maturity is an average of the maturities of bonds held by the fund directly and the bonds underlying derivative instruments entered into by the fund, if any, adjusted to reflect provisions or market conditions that may cause a bond's principal to be repaid earlier than at its stated maturity. Duration is an indication of an investment's "interest rate risk," or how sensitive a bond or the fund's portfolio may be to changes in interest rates. The fund invests principally in bonds and other fixed-income securities rated investment grade, and may invest in, or otherwise have investment exposure to the securities of companies of any market capitalization.


The fund's portfolio managers apply a systematic analytical investment approach designed to identify and exploit relative misvaluation opportunities across and within global capital markets. Active investment decisions to dynamically shift between long or short positions in individual country, equity, bond, currency and commodity markets, as well as allocations to cash, are driven by this systematic investment process and seek to capitalize on opportunities within and among the capital markets of the world. The fund's portfolio managers have considerable latitude in allocating the fund's assets and in selecting derivative instruments and securities to implement the fund's investment approach, and there is no limitation or requirement as to the amount of fund assets to be invested in any one asset class.


The portfolio managers update, monitor and follow buy or sell recommendations from Mellon Capital Management Corporation's proprietary investment models. The models can recommend selling a security if the relative attractiveness deteriorates or its valuation becomes excessive or risk associated with the security increases significantly. The model also may recommend selling a security if an event occurs that contradicts the models' rationale for owning it, such as deterioration in the issuer's fundamentals. In addition, the portfolio managers may sell a security if better investment opportunities emerge elsewhere. For allocation among equity markets, the portfolio managers employ a bottom-up valuation approach using proprietary models to derive market level expected returns. For allocation among bond markets, the portfolio managers use proprietary models to identify temporary mispricings among global bond markets. The portfolio managers evaluate currencies on a relative valuation basis and overweight exposure to currencies that are undervalued and underweight exposure to currencies that are overvalued based on real interest rates, purchasing power parity, and other proprietary measures. The portfolio managers seek to identify opportunities in commodity markets by measuring and evaluating inventory and term structure, hedging and speculative activity as well as momentum. The investment process combines fundamental and momentum signals in a quantitative framework.


The fund may use to a significant degree derivative instruments, such as options, futures and options on futures (including those relating to securities, indexes, foreign currencies and interest rates), forward contracts, swap agreements (including total return swap agreements), options on swap agreements and hybrid instruments (typically structured notes), as a substitute for investing directly in equities, bonds, currencies or commodities in connection with its investment strategy. The fund also may use such derivatives as part of a hedging strategy or for other purposes related to the management of the fund.

Risk [Heading] 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.


· Allocation risk. The ability of the fund to achieve its investment goal depends, in part, on the ability of the fund's portfolio manager to allocate effectively the fund's assets among the various asset classes, such as equities, bonds, currencies, commodities and cash. There can be no assurance that the actual allocations will be effective in achieving the fund's investment goal.


· Correlation risk. Because the fund allocates its investments among different asset classes, the fund is subject to correlation risk. Although the prices of equity securities and fixed-income securities, as well as other asset classes, often rise and fall at different times so that a fall in the price of one may be offset by a rise in the price of the other, in down markets the prices of these securities and asset classes can also fall in tandem.


· 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.


· Fixed-income market risk. The market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are at or near historic lows in the United States and in other countries. An unexpected increase in fund redemption requests, including requests from shareholders who may own a significant percentage of the fund's shares, which may be triggered by market turmoil or an increase in interest rates, could cause the fund to sell its holdings at a loss or at undesirable prices and adversely affect the fund's share price and increase the fund's liquidity risk, fund expenses and/or taxable distributions.


· Credit risk. Failure of an issuer of a security to make timely interest or principal payments when due, or a decline or perception of a decline in the credit quality of a security, can cause the security's price to fall, lowering the value of the fund's investment in such security. The lower a security's credit rating, the greater the chance that the issuer of the security will default or fail to meet its payment obligations.


· High yield securities risk. High yield ("junk") securities involve greater credit risk, including the risk of default, than investment grade securities, and are considered predominantly speculative with respect to the issuer's ability to make principal and interest payments. The prices of high yield securities can fall in response to bad news about the issuer or its industry, or the economy in general, to a greater extent than those of higher rated securities. Securities rated investment grade when purchased by the fund may subsequently be downgraded.


· Interest rate risk. Prices of bonds and other fixed rate fixed-income securities tend to move inversely with changes in interest rates. Typically, a rise in rates will adversely affect fixed-income securities and, accordingly, will cause the value of the fund's investments in these securities to decline. During periods of very low interest rates, which occur from time to time due to market forces or actions of governments and/or their central banks, including the Board of Governors of the Federal Reserve System in the U.S., the fund may be subject to a greater risk of principal decline from rising interest rates. When interest rates fall, the values of already-issued fixed rate fixed-income securities generally rise. However, when interest rates fall, the fund's investments in new securities may be at lower yields and may reduce the fund's income. The magnitude of these fluctuations in the market price of fixed-income securities is generally greater for securities with longer effective maturities and durations because such instruments do not mature, reset interest rates or become callable for longer periods of time. The change in the value of a fixed-income security or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, the market price of a fixed-income security with a duration of three years would be expected to decline 3% if interest rates rose 1%. Conversely, the market price of the same security would be expected to increase 3% if interest rates fell 1%. Risks associated with rising interest rates are heightened given that interest rates in the United States and other countries are at or near historic lows. Risks associated with rising interest rates are heightened given that interest rates in the United States and other countries are at or near historic lows.


· 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 government obligations and securities of supranational entities risk. Investing in foreign government (sovereign) obligations and debt obligations of supranational entities creates exposure to the direct or indirect consequences of political, social or economic changes in the countries that issue the securities or in which the issuers are located. The ability and willingness of sovereign obligors or the governmental authorities that control repayment of their debt to pay principal and interest on such debt when due may depend on general economic and political conditions within the relevant country. Certain countries in which the fund may invest have historically experienced, and may continue to experience, high rates of inflation, high interest rates and extreme poverty and unemployment. Some of these countries are also characterized by political uncertainty or instability. These risks are heightened with respect to emerging market obligors. A sovereign obligor may default on its obligations.


· 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. To the extent the fund's investments are focused in one or a limited number of foreign countries, the fund's performance could be more volatile than that of more geographically diversified funds.


· 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, particularly the currencies of emerging market countries, are also subject to risks caused by inflation, interest rates, budget deficits and low savings rates, political factors and government intervention and controls.


· Commodity sector risk. Exposure to the commodities markets may subject the fund to greater volatility than investments in traditional securities. The values of commodities and commodity-linked investments are affected by events that might have less impact on the values of stocks and bonds. Investments linked to the prices of commodities are considered speculative. Because the value of a commodity-linked derivative instrument, such as a structured note, typically is based upon the price movements of physical commodities, the value of these securities will rise or fall in response to changes in the underlying commodities or related index of investment. Prices of commodities and commodity-linked investments may fluctuate significantly over short periods for a variety of factors, including: changes in supply and demand relationships, weather, agriculture, trade, fiscal, monetary and exchange control programs, disease, pestilence, acts of terrorism, embargoes, tariffs and international economic, political, military and regulatory developments.


· Leverage risk. The use of leverage, such as entering into futures contracts or forward currency contracts and engaging in forward commitment transactions, may magnify the fund's gains or losses. In addition, the fund’s short sales positions effectively leverage the fund’s assets.


· Derivatives risk. A small investment in derivatives could have a potentially large impact on the fund's performance. The use of derivatives involves risks different from, or possibly greater than, the risks associated with investing directly in the underlying assets, and the fund's use of derivatives may result in losses to the fund. Derivatives in which the fund may invest can be highly volatile, illiquid and difficult to value, and there is the risk that changes in the value of a derivative held by the fund will not correlate with the underlying instruments or the fund's other investments in the manner intended. Certain types of derivatives, including structured notes, swap agreements, forward contracts, over-the-counter options and other over-the-counter transactions, involve greater risks than the underlying obligations because, in addition to general market risks, they are subject to illiquidity risk, counterparty risk, credit risk and pricing risk. Because many derivatives have a leverage component, adverse changes in the value or level of the underlying asset, reference rate or index can result in a loss substantially greater than the amount invested in the derivative itself. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The fund may be required to segregate liquid assets, or otherwise cover its obligations, relating to the fund's transactions in derivatives.


· ETF and other investment company risk. To the extent the fund invests in pooled investment vehicles, such as investment companies and ETFs, the fund will be affected by the investment policies, practices and performance of such entities in direct proportion to the amount of assets the fund has invested therein. The risks of investing in other investment companies, including ETFs, typically reflect the risks associated with the types of instruments in which the investment companies and ETFs invest. When the fund invests in another investment company or an ETF, shareholders of the fund will bear indirectly their proportionate share of the expenses of the other investment company or the ETF (including management fees) in addition to the expenses of the fund.


· 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, even during periods of declining interest rates. Investments that are illiquid or that trade in lower volumes may be more difficult to value. Investments in foreign securities, particularly those of issuers located in emerging markets, tend to have greater exposure to liquidity risk than domestic securities.


· Issuer risk. A security's market value may decline for a number of reasons which directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer's products or services, or factors that affect the issuer's industry, such as labor shortages or increased production costs and competitive conditions within an industry.


· Non-diversification risk. The fund is non-diversified, which means that the fund may invest a relatively high percentage of its assets in a limited number of issuers. Therefore, the fund's performance may be more vulnerable to changes in the market value of a single issuer or group of issuers and more susceptible to risks associated with a single economic, political or regulatory occurrence than a diversified fund.


· Portfolio turnover risk. The fund may engage in short-term trading, which could produce higher transaction costs and taxable distributions, and lower the fund's after-tax performance.

Risk Lose Money [Text] rr_RiskLoseMoney The fund's share price fluctuates, sometimes dramatically, which means you could lose money.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus The fund is non-diversified, which means that the fund may invest a relatively high percentage of its assets in a limited number of issuers. Therefore, the fund's performance may be more vulnerable to changes in the market value of a single issuer or group of issuers and more susceptible to risks associated with a single economic, political or regulatory occurrence than a diversified fund.
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.
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 Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex The hybrid index A is composed of 60% Morgan Stanley Capital International World Index and 40% Citigroup World Government Bond Index. The hybrid index B is composed of 60% Morgan Stanley Capital International World Index (half-hedged) and 40% Citigroup World Government Bond Index (half-hedged).
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
Q3, 2009: 17.71%


Worst Quarter
Q4, 2008: -15.40%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.71%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.40%)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflects no deduction for fees, expenses or taxes
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 U.S. 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. 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. 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 U.S. tax-deferred arrangements such as 401(k) plans or individual retirement accounts.


For the fund’s Class Y shares, periods prior to the inception date reflect the performance of the fund's Class A shares, not reflecting the applicable sales charges for Class A shares. Such performance figures have not been adjusted to reflect applicable class fees and expenses.


The hybrid index A is composed of 60% Morgan Stanley Capital International World Index and 40% Citigroup World Government Bond Index. The hybrid index B is composed of 60% Morgan Stanley Capital International World Index (half-hedged) and 40% Citigroup World Government Bond Index (half-hedged).

Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (as of 12/31/15)
Dynamic Total Return Fund | Morgan Stanley Capital International World Index reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (0.87%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 7.59%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.14%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Citigroup 3-month Treasury Bill Index reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.03%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 0.05%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 1.06%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Hybrid Index A reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.72%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.66%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.16%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Morgan Stanley Capital International World Index (half-hedged) reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.57%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 8.57%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.42% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Citigroup World Government Bond Index (half-hedged) reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.14%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 1.93%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.96% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Hybrid IndexB reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.11%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.06%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.56% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther none [2]
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees) rr_OtherExpensesOverAssets 0.39%
Total annual fund operating expenses rr_ExpensesOverAssets 1.49%
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 $ 718
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,019
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,341
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,252
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 718
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,019
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,341
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,252
Annual Return 2007 rr_AnnualReturn2007 0.17%
Annual Return 2008 rr_AnnualReturn2008 (33.99%)
Annual Return 2009 rr_AnnualReturn2009 24.70%
Annual Return 2010 rr_AnnualReturn2010 13.11%
Annual Return 2011 rr_AnnualReturn2011 0.09%
Annual Return 2012 rr_AnnualReturn2012 8.40%
Annual Return 2013 rr_AnnualReturn2013 14.00%
Annual Return 2014 rr_AnnualReturn2014 8.22%
Annual Return 2015 rr_AnnualReturn2015 (0.32%)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (6.05%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.69%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.63%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Class A | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (6.05%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.69%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.37%
Dynamic Total Return Fund | Class A | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (3.42%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.04%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.12%
Dynamic Total Return Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Other expenses (including shareholder services fees) rr_OtherExpensesOverAssets 0.39%
Total annual fund operating expenses rr_ExpensesOverAssets 2.24%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 327
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 700
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,200
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,575
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 227
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 700
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,200
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,575
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (2.00%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 5.15%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.49%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | 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 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees) rr_OtherExpensesOverAssets 0.12%
Total annual fund operating expenses rr_ExpensesOverAssets 1.22%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 124
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 387
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 670
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,477
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 124
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 387
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 670
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,477
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 none
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.27%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.60%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | 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 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees) rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 1.14%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 116
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 362
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 628
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,386
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 116
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 362
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 628
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,386
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.06%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.35%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.47%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Jul. 01, 2013
[1] For comparative purposes, the value of the index on April 30, 2006 is used as the beginning value on May 2, 2006.
[2] 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..