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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading

Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Fund's investment objective is high current income with capital appreciation as a secondary objective.

Expense [Heading] rr_ExpenseHeading

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

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in the A Class shares of the American Beacon Funds. More information about these and other discounts is available from your financial professional and in "Choosing Your Share Class" on page 15 of the Prospectus and "Additional Purchase and Sale Information for A Class Shares" on page 27 of the statement of additional information.

Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in the A Class shares of the American Beacon Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
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 May 29, 2016
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Other expenses and Acquired Fund Fees and Expenses are based on estimated expenses for the current fiscal year.
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge ("CDSC") of 0.50% will be charged on certain purchases of $250,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
Expense Example [Heading] rr_ExpenseExampleHeading

Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in 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

Assuming no redemption of shares:

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 rate 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. The Fund's portfolio turnover rate for the Fund's last fiscal year is not provided because the Fund has not commenced operations prior to the date of this Prospectus.

Strategy [Heading] rr_StrategyHeading

Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest primarily in high yield fixed income securities and bank loans that are rated below investment grade. The Fund considers investments to be below investment grade if they are rated BB+ or lower by Standard & Poor's Ratings Services or Fitch, Inc. and/or Ba1 or lower by Moody's Investors Service, Inc., or, if unrated, deemed to be below investment grade by Crescent Capital Group LP ("Crescent Capital"), the Fund's sub-advisor. Below investment grade fixed income securities are commonly referred to as "junk bonds."

The fixed-income securities in which the Fund may invest include high yield bonds, corporate bonds, bank loans, senior loans, fixed or floating rate securities, and preferred stock of domestic or foreign issuers. The Fund also may invest in illiquid securities, including investments in private debt instruments. The Fund intends to maintain a dollar-weighted average duration of three years or less.

Crescent Capital's investment strategy is to tactically allocate among fixed and floating rate, secured and unsecured, and public and private credit investments to achieve a high level of current income regardless of the overall credit or interest rate environment. Crescent Capital's investment philosophy is based on a credit-intensive research process that seeks to exploit credit market inefficiencies. The sub-advisor seeks investment opportunities among different types of fixed income securities and a range of market sectors. Crescent Capital seeks to invest in fixed income securities issued by companies that demonstrate one or more of the following characteristics: (i) predictable demand and stable cash flows; (ii) competitive positions in well-defined markets niches; (iii) sustainable margins, profitability and growth; (iv) strong financial and managerial controls; and (v) seasoned management teams.
The Fund may invest cash balances in other investment companies, including money market funds.

Risk [Heading] rr_RiskHeading

Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund. The Fund is not designed for investors who need an assured level of current income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund are:

Bank Loans and Senior Loan Risk
Bank loans and senior loans are subject to credit risk, interest rate risk and liquidity risk. In addition, bank loans and senior loans are subject to the risk that the value of the collateral, if any, securing a loan may decline, be insufficient to meet the obligations of the borrower, or be difficult to liquidate. In the event of a default, the Fund may have difficulty collecting on any collateral and would not have the ability to collect on any collateral for an uncollateralized loan.

Credit Risk
The Fund is subject to the risk that the issuer or guarantor of a debt security, or the counterparty to a derivatives contract or a loan, will fail to make timely payment of interest or principal or otherwise honor its obligations or default completely. Credit risk is typically greater for securities with ratings that are below investment grade (commonly referred to as "junk bonds"). Since the Fund can invest significantly in lower-quality debt securities considered speculative in nature, this risk will be substantial.

Floating Rate Securities Risk
The interest rates payable on floating rate securities are not fixed and may fluctuate based upon changes in market rates. The interest rate on a floating rate security is a variable rate which is tied to another interest rate, such as a money-market index or Treasury bill rate. Floating rate securities are subject to interest rate risk and credit risk.

Foreign Investing Risk
Non-U.S. investments carry potential risks not associated with U.S. investments. Such risks include, but are not limited to: (1) currency exchange rate fluctuations, (2) political and financial instability, (3) less liquidity and greater volatility, (4) lack of uniform accounting, auditing and financial reporting standards, (5) increased price volatility, (6) less government regulation and supervision of foreign stock exchanges, brokers and listed companies, and (7) delays in transaction settlement in some foreign markets.

High Yield Securities Risk
Investing in high yield, below-investment-grade securities (commonly referred to as "junk bonds") generally involves significantly greater risks of loss of your money than an investment in investment-grade securities. Rising interest rates may compound these difficulties and reduce an issuer's ability to repay principal and interest obligations. Issuers of lower-rated securities also have a greater risk of default or bankruptcy. Below-investment-grade securities may experience greater price volatility and less liquidity than investment-grade securities.

Interest Rate Risk
The Fund is subject to the risk that the market value of fixed income securities it holds will decline due to rising interest rates. When interest rates rise, the prices of most fixed income securities go down. As of the date of this Prospectus, interest rates are at or near historic lows, which may increase the Fund's exposure to the risks associated with rising interest rates. The price of fixed income securities is also affected by their duration. Fixed income securities with longer duration generally have greater sensitivity to changes in interest rates. For example, if a bond has a duration of four years, a 1% increase in U.S. Treasury interest rates could be expected to result in a 4% decrease in the value of the bond.

Investment Risk
An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.

Issuer Risk
The value of a security 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 goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.

Liquidity Risk
From time to time, certain investments held by the Fund may have limited marketability or have restrictions on sale, and may be difficult to sell at favorable times or prices. The Fund could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund.

Market Events Risk
Turbulence in financial markets and reduced liquidity in credit, fixed-income, and equity markets may negatively affect many issuers worldwide which could adversely affect the Fund.

Market Risk
Market risks, including political, regulatory, market and economic developments, and developments that impact specific economic sectors, industries or segments of the market, can affect the value of the Fund's shares. The Fund's fixed-income investments are subject to the risk that the lack of liquidity or other adverse credit market conditions may hamper the Fund's ability to purchase and sell the debt securities. From time to time, certain investments held by the Fund may have limited marketability and may be difficult to sell at favorable times or prices. If the Fund is forced to sell such holdings to meet redemption requests or other cash needs, the Fund may have to sell them at a loss.

Other Investment Companies Risk
The Fund may invest in shares of other registered investment companies, including money market funds. To the extent that the Fund invests in shares of other registered investment companies, you will indirectly bear fees and expenses charged by the underlying funds in addition to the Fund's direct fees and expenses and will be subject to the risks associated with investments in those funds.

Preferred Stock Risk
If interest rates rise, the dividend on preferred stocks may be less attractive, causing the price of preferred stocks to decline. The rights of preferred stock on distribution of a corporation's assets in the event of its liquidation are generally subordinated to the rights associated with a corporation's debt securities. Therefore, in the event of an issuer's bankruptcy, there is substantial risk that there will be nothing left to pay preferred stockholders after payments, if any, to bondholders have been made. Preferred stocks may also be subject to credit risk.

Restricted Securities/Rule 144A Securities Risk
Securities not registered in the U.S. under the Securities Act are restricted as to their resale. They may be less liquid than other investments because such securities may not be readily marketable in broad public markets. The Fund may not be able to sell a restricted security when the sub-advisors consider it desirable to do so and/or may have to sell the security at a lower price. In addition, transaction costs may be higher for restricted securities than for more liquid securities. The Fund may have to bear the expense of registering restricted securities for resale and the risk of substantial delays in effecting the registration.

Securities Selection Risk
Securities selected by the sub-advisor or the Manager for the Fund may not perform to expectations. The sub-advisor's investment models may rely in part on data derived from third parties and may not perform as intended. This could result in the Fund's underperformance compared to other funds with similar investment objectives.

Unrated Securities Risk
Because the Fund may purchase securities that are not rated by any rating organization, the sub-advisor may internally assign ratings to certain of those securities, after assessing their credit quality, in categories of those similar to those of rating organizations. Some unrated securities may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price.
Risk Lose Money [Text] rr_RiskLoseMoney There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

Performance information for the Fund is not provided because the Fund has not been in operation for a full calendar year.

Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information for the Fund is not provided because the Fund has not been in operation for a full calendar year.
Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.50%
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther 0.50% [1]
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 1.24% [2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.95%
Fee Waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.69%)
Total Annual Fund Operating Expenses after fee waiver and/or expense reimbursement or recoupment rr_NetExpensesOverAssets 1.26% [3]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 696
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,089
Trading Symbol dei_TradingSymbol ACHAX
Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 1.24% [2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.70%
Fee Waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.69%)
Total Annual Fund Operating Expenses after fee waiver and/or expense reimbursement or recoupment rr_NetExpensesOverAssets 2.01% [3]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 304
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 773
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 204
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 773
Trading Symbol dei_TradingSymbol ACHCX
Class Y
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 1.19% [2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.65%
Fee Waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.69%)
Total Annual Fund Operating Expenses after fee waiver and/or expense reimbursement or recoupment rr_NetExpensesOverAssets 0.96% [3]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 98
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 453
Trading Symbol dei_TradingSymbol ACHYX
Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 1.09% [2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.55%
Fee Waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.69%)
Total Annual Fund Operating Expenses after fee waiver and/or expense reimbursement or recoupment rr_NetExpensesOverAssets 0.86% [3]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 88
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 422
Trading Symbol dei_TradingSymbol ACHIX
Investor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 1.47% [2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.93%
Fee Waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.69%)
Total Annual Fund Operating Expenses after fee waiver and/or expense reimbursement or recoupment rr_NetExpensesOverAssets 1.24% [3]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 126
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 539
Trading Symbol dei_TradingSymbol ACHPX
[1] A contingent deferred sales charge ("CDSC") of 0.50% will be charged on certain purchases of $250,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.
[2] Other expenses and Acquired Fund Fees and Expenses are based on estimated expenses for the current fiscal year.
[3] The Manager has contractually agreed to waive fees and/or reimburse expenses of the Fund's A Class, C Class, Y Class, Institutional Class, and Investor Class shares, as applicable, through May 29, 2016 to the extent that Total Annual Fund Operating Expenses exceed 1.25% for the A Class, 2.00% for the C Class, 0.95% for the Y Class, 0.85% for the Institutional Class and 1.23% for the Investor Class (excluding taxes, brokerage commissions, acquired fund fees and expenses and other extraordinary expenses such as litigation). The contractual expense reimbursement can be changed only with the approval of a majority of the Fund's Board of Trustees. The Manager can be reimbursed by the Fund for any contractual fee waivers or expense reimbursements if reimbursement to the Manager (a) occurs within three years after the Manager's own waiver or reimbursement and (b) does not cause the Total Annual Fund Operating Expenses of a class to exceed the contractual percentage limit in effect at the time of the waiver/reimbursement.