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BNY Mellon Floating Rate Income 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 high current income.

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, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the fund or shares of other funds in the BNY Mellon Family of Funds that are subject to a sales charge. More information about sales charges, including these and other discounts and waivers, is available from your financial professional and in the Shareholder Guide section beginning on page 15 of the prospectus, in the Appendix on page A-1 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 Dec. 30, 2023
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 59.58% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 59.58%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the fund or shares of other funds in the BNY Mellon Family of Funds that are subject to a sales charge.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 100,000
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. 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 agreement by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
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 floating rate loans and other floating rate securities. These investments effectively should enable the fund to achieve a floating rate of income. The fund's sub-adviser normally focuses on senior secured floating rate loans, which are loans secured by specific collateral of the borrower and are senior to most other securities of the borrower (e.g., common stock or debt instruments) in the event of bankruptcy. The fund's investments in floating rate loans and other floating rate securities also may include, without limitation, (i) second lien loans, senior unsecured loans and subordinated loans, (ii) senior and subordinated corporate debt obligations (such as bonds, debentures and notes), and (iii) debt obligations issued by governments, their agencies and instrumentalities, and debt obligations issued by central banks. The fund may purchase participations and assignments in, and commitments to purchase, floating rate loans. The fund currently intends to invest principally in floating rate loans and other floating rate securities of U.S. issuers, but may invest up to 30% of its net assets in securities of foreign issuers, typically those located in foreign countries that are members of the Organisation for Economic Co-operation and Development.

Floating rate instruments are loans and other securities with interest rates that adjust or "float" periodically based on a specified interest rate or other reference. Floating rate loans are made by banks and other financial institutions to their corporate clients.

The fund may invest in floating rate loans and other securities of any credit quality, maturity and duration. The floating rate loans and other floating rate securities in which the fund invests typically will be rated, at the time of investment, below investment grade (i.e., below BBB- or Baa3) by one or more nationally recognized statistical rating organizations (NRSROs) that rate such instruments, or, if unrated, determined to be of comparable quality by the fund's sub-adviser (commonly referred to as "junk" or "high yield" instruments). The fund may invest up to 20% of its net assets in the aggregate in floating rate loans and other floating rate securities and fixed rate high yield bonds rated, at the time of investment, in the lower rated categories (CCC+ or Caa1 or lower) by an NRSRO or, if unrated, determined to be of comparable quality by the fund's sub-adviser. The fund may not invest in issuers which are in default (i.e., failing to pay interest or principal when due) at the time of purchase, except for investments in debt issued in connection with a company in bankruptcy that is senior to all other debt, equity, and any other securities in connection with such issuer.

The fund's sub-adviser buys and sells securities for the fund through a value-oriented, bottom-up research process that incorporates a macroeconomic overlay to analyze investment opportunities. The sub-adviser uses fundamental credit analysis to identify favorable and unfavorable risk/reward opportunities across sectors, industries and structures while seeking to mitigate credit risk. The sub-adviser's fundamental analysis is complemented by its macroeconomic outlook as it relates to observed default trends, performance drivers and capital market liquidity. The sub-adviser seeks to mitigate credit risk through a disciplined approach to its credit investment selection and evaluation process.

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.

● Floating rate loan risk. Unlike publicly traded common stocks which trade on national exchanges, there is no central market or exchange for loans to trade. Loans trade in an over-the-counter market, and confirmation and settlement, which are effected through standardized procedures and documentation, may take significantly longer than seven days to complete. Extended trade settlement periods may, in unusual market conditions with a high volume of shareholder redemptions, present a risk to shareholders regarding the fund's ability to pay redemption proceeds within the allowable time periods stated in this prospectus. The secondary market for floating rate loans also may be subject to irregular trading activity and wide bid/ask spreads. The lack of an active trading market for certain floating rate loans may impair the ability of the fund to realize full value in the event of the need to sell a floating rate loan and may make it difficult to value such loans. There may be less readily available, reliable information about certain floating rate loans than is the case for many other types of securities, and the fund's portfolio managers may be required to rely primarily on their own evaluation of a borrower's credit quality rather than on any available independent sources. The value of collateral, if any, securing a floating rate loan can decline, and may be insufficient to meet the issuer's obligations in the event of non-payment of scheduled interest or principal or may be difficult to readily liquidate. In the event of the bankruptcy of a borrower, the fund could experience delays or limitations imposed by bankruptcy or other insolvency laws with respect to its ability to realize the benefits of the collateral securing a loan. The floating rate loans in which the fund invests typically will be below investment grade quality and, like other below investment grade securities, are inherently speculative. As a result, the risks associated with such floating rate loans are similar to the risks of below investment grade securities, although senior loans are typically senior and secured in contrast to other below investment grade securities, which are often subordinated and unsecured. Floating rate loans may not be considered to be "securities" for purposes of the anti-fraud protections of the federal securities laws, including those with respect to the use of material non-public information, so that purchasers, such as the fund, may not have the benefit of these protections.

● Subordinated securities risk. Holders of securities that are subordinated or "junior" to more senior securities of an issuer are entitled to payment after holders of more senior securities of the issuer. Subordinated securities are more likely to suffer a credit loss than non-subordinated securities of the same issuer, any loss incurred by the subordinated securities is likely to be proportionately greater, and any recovery of interest or principal may take more time. As a result, even a perceived decline in creditworthiness of the issuer is likely to have a greater impact on the market value of these securities. Subordinated loans generally have greater price volatility than senior loans and may be less liquid.

● 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 the security, can cause the security's price to fall. 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. These securities are especially sensitive to adverse changes in general economic conditions, to changes in the financial condition of their issuers and to price fluctuation in response to changes in interest rates. During periods of economic downturn or rising interest rates, issuers of below investment grade securities may experience financial stress that could adversely affect their ability to make payments of principal and interest and increase the possibility of default.

● Participation interests and assignments risk. A participation interest gives the fund an undivided interest in a loan in the proportion that the fund's participation interest bears to the total principal amount of the loan, but does not establish any direct relationship between the fund and the borrower. If a floating rate loan is acquired through a participation, the fund generally will have no right to enforce compliance by the borrower with the terms of the loan agreement against the borrower, and the fund may not directly benefit from the collateral supporting the debt obligation in which it has purchased the participation. If a floating rate loan is acquired through an assignment, the fund may not be able to unilaterally enforce all rights and remedies under the loan and with regard to any associated collateral.

● Market risk. The value of the securities in which the fund invests may be affected by political, regulatory, economic and social developments, and developments that impact specific economic sectors, industries or segments of the market.  In addition, turbulence in financial markets and reduced liquidity in equity, credit and/or fixed-income markets may negatively affect many issuers, which could adversely affect the fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market.  These risks may be magnified if certain events or developments adversely interrupt the global supply chain; in these and other circumstances, such

risks might affect companies world-wide. Recent examples include pandemic risks related to COVID-19 and aggressive measures taken world-wide in response by governments, including closing borders, restricting international and domestic travel, and the imposition of prolonged quarantines of large populations, and by businesses, including changes to operations and reducing staff. 

● Issuer risk. A security's market value may decline for a number of reasons which directly relate to the issuer, or to factors that affect the issuer's industry.

● 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 that are illiquid or that trade in lower volumes may be more difficult to value. The market for below investment grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Investments in foreign securities tend to have greater exposure to liquidity risk than domestic securities. No active trading market may exist for some of the floating rate loans in which the fund invests and certain loans may be subject to restrictions on resale. Because some floating rate loans that the fund invests in may have a more limited secondary market, liquidity risk is more pronounced for the fund than for mutual funds that invest primarily in other types of fixed-income instruments or equity securities. Liquidity risk also may refer to the risk that the fund will not be able to pay redemption proceeds within the allowable time period stated in this prospectus because of unusual market conditions, an unusually high volume of redemption requests, or other reasons.

● Loan valuation risk. Because there may be a lack of centralized information and trading for certain loans in which the fund may invest, reliable market value quotations may not be readily available for such loans and their valuation may require more research than for securities with a more developed secondary market.

● Management conflicts risk. The fund's sub-adviser and its affiliates may participate in the primary and secondary market for loan obligations. Because of limitations imposed by applicable law, the presence of the sub-adviser and its 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. The fund's sub-adviser and its affiliates engage in a broad spectrum of financial services and asset management activities in which their interests or the interests of their clients may conflict with those of the fund.

● 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.

● 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. A wide variety of market factors can cause interest rates to rise, including central bank monetary policy, rising inflation and changes in general economic conditions. 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 fund's investments in new securities may be at lower yields and may reduce the fund's income. Very low or negative interest rates may magnify interest rate risk. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from fund performance. 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. Unlike investment grade bonds, however, the prices of high yield ("junk") bonds may fluctuate unpredictably and not necessarily inversely with changes in interest rates. In addition, the rates on floating rate instruments adjust periodically with changes in market interest rates. Although these instruments are generally less sensitive to interest rate changes than fixed rate instruments, the value of floating rate loans and other floating rate securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates.

● Prepayment risk. Some securities give the issuer the option to prepay or call the securities before their maturity date, which may reduce the market value of the security and the anticipated yield-to-maturity. Issuers often exercise this right when interest rates fall. If an issuer "calls" its securities during a time of declining interest rates, the fund might have to reinvest the proceeds in an investment offering a lower yield, and therefore might not benefit from any increase in value as a result of declining interest rates. During periods of market illiquidity or rising interest rates, prices of "callable" issues are subject to increased price fluctuation.

● Management risk. The investment process used by the fund's sub-adviser could fail to achieve the fund's investment goal and cause your fund investment to lose value.

● LIBOR rate risk. Many financial instruments, including those in which the fund may invest, utilize the London Interbank Offered Rate (LIBOR) as the reference or benchmark rate for variable interest rate calculations.  In July 2017, the United Kingdom's financial regulatory body announced plans to phase out the use of LIBOR by the end of 2021. It was subsequently announced that most tenors of US Dollar (USD) LIBOR would continue to be published through June 30, 2023, other than one-week and two-month USD LIBOR, which ceased publication on December 31, 2021. Various financial industry groups around the world have begun planning the transition to the use of different benchmarks.  In the United States, the Federal Reserve Board and the New York Fed convened the Alternative Reference Rates Committee, comprised of a group of private-market participants, which recommended the Secured Overnight Financing Rate as an alternative reference rate to USD LIBOR.  Neither the effect of the transition process, in the United States or elsewhere, nor its ultimate success, can yet be known.  While some instruments tied to LIBOR may include a replacement rate in the event LIBOR is discontinued, not all instruments have such fallback provisions and the effectiveness of such replacement rates remains uncertain.  The cessation of LIBOR could affect the value and liquidity of investments tied to LIBOR, especially those that do not include fallback provisions, and may result in costs incurred in connection with closing out positions and entering into new trades.
Risk Lose Money [Text] rr_RiskLoseMoney The fund's share price fluctuates, sometimes dramatically, which means you could lose money.
RIsk Not Insured [Text] rr_RiskNotInsured 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. 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. 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. More recent performance information may be available at www.im.bnymellon.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 Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.im.bnymellon.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, 2020: 10.16%
Worst Quarter
Q1, 2020: -13.19%

The year-to-date total return of the fund's Class A shares as of September 30, 2022 was -4.20%.
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (4.20%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.16%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (13.19%)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflects no deductions 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 Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Returns after taxes on distributions and sale of fund shares may be higher than returns before taxes or returns after taxes on distributions due to an assumed tax benefit from losses on a sale of the fund's shares at the end of the period.
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. Returns after taxes on distributions and sale of fund shares may be higher than returns before taxes or returns after taxes on distributions due to an assumed tax benefit from losses on a sale of the fund's shares at the end of the period.
Average Annual Return, Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (as of 12/31/21)
BNY Mellon Floating Rate Income Fund | Credit Suisse Leveraged Loan Index reflects no deductions for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 5.40%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.32%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.21%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Sep. 30, 2013
BNY Mellon Floating Rate Income Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.50%
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOfferingPrice none [1]
Management fees rr_ManagementFeesOverAssets 0.65%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder services fees rr_Component1OtherExpensesOverAssets 0.25%
Miscellaneous other expenses rr_Component2OtherExpensesOverAssets 0.16% [2]
Total other expenses rr_OtherExpensesOverAssets 0.41%
Total annual fund operating expenses rr_ExpensesOverAssets 1.06%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.03%) [3]
Total annual fund operating expenses (after fee waiver and/or expense reimbursement) rr_NetExpensesOverAssets 1.03%
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 $ 352
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 576
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 817
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,509
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 352
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 576
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 817
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,509
Annual Return 2014 rr_AnnualReturn2014 1.22%
Annual Return 2015 rr_AnnualReturn2015 (0.62%)
Annual Return 2016 rr_AnnualReturn2016 7.26%
Annual Return 2017 rr_AnnualReturn2017 3.24%
Annual Return 2018 rr_AnnualReturn2018 (0.92%)
Annual Return 2019 rr_AnnualReturn2019 6.88%
Annual Return 2020 rr_AnnualReturn2020 2.26%
Annual Return 2021 rr_AnnualReturn2021 4.56%
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 1.96%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 2.65%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.70%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2013
BNY Mellon Floating Rate Income Fund | Class A | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.37%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 0.84%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 0.97%
BNY Mellon Floating Rate Income Fund | Class A | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 1.14%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 1.22%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 1.27%
BNY Mellon Floating Rate Income Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management fees rr_ManagementFeesOverAssets 0.65%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Shareholder services fees rr_Component1OtherExpensesOverAssets 0.25%
Miscellaneous other expenses rr_Component2OtherExpensesOverAssets 0.24% [2]
Total other expenses rr_OtherExpensesOverAssets 0.49%
Total annual fund operating expenses rr_ExpensesOverAssets 1.89%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.11%) [3]
Total annual fund operating expenses (after fee waiver and/or expense reimbursement) rr_NetExpensesOverAssets 1.78%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 281
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 583
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,011
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,203
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 181
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 583
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,011
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,203
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 2.73%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 2.41%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.24%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2013
BNY Mellon Floating Rate Income 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_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.65%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder services fees rr_Component1OtherExpensesOverAssets none
Miscellaneous other expenses rr_Component2OtherExpensesOverAssets 0.17% [2]
Total other expenses rr_OtherExpensesOverAssets 0.17%
Total annual fund operating expenses rr_ExpensesOverAssets 0.82%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.04%) [3]
Total annual fund operating expenses (after fee waiver and/or expense reimbursement) rr_NetExpensesOverAssets 0.78%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 80
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 258
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 451
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,010
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 80
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 258
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 451
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,010
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 4.77%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.44%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.28%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2013
BNY Mellon Floating Rate Income 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_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.65%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Shareholder services fees rr_Component1OtherExpensesOverAssets none
Miscellaneous other expenses rr_Component2OtherExpensesOverAssets 0.08% [2]
Total other expenses rr_OtherExpensesOverAssets 0.08%
Total annual fund operating expenses rr_ExpensesOverAssets 0.73%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets [3]
Total annual fund operating expenses (after fee waiver and/or expense reimbursement) rr_NetExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 75
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 233
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 406
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 906
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 75
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 233
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 406
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 906
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 4.84%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.48%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.30%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2013
[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] Includes commitment fees on borrowings in the amount of .03%.
[3] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until December 30, 2023, to waive receipt of its fees and/or assume the direct expenses of the fund so that the direct expenses of none of the fund's share classes (excluding Rule 12b-1 fees, shareholder services fees, taxes, interest, brokerage commissions, commitment fees on borrowings and extraordinary expenses) exceed .75%. On or after December 30, 2023, BNY Mellon Investment Adviser, Inc. may terminate this expense limitation agreement at any time.