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    <dei:EntityRegistrantName contextRef="Trust" id="ixv-69342">Fidelity Greenwood Street Trust</dei:EntityRegistrantName>
    <oef:RiskReturnHeading contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-214">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Hedged Equity Fund 
     /Fidelity&#xae; Hedged Equity Fund  
    
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     Investment Objective 
       
    
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     Fidelity&#xae; Hedged Equity Fund seeks capital appreciation. 
       
    
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     Fee Table 
       
    
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     The following table describes the fees and expenses that may be incurred when 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 tables and examples below. 
    
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     Shareholder fees 
       
    
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      unitRef="usd">0</oef:ShareholderFeeOther>
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     Annual Operating Expenses 
       
    
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      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="ixv-72047"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
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      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="ixv-72048"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="ixv-72049"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="ixv-72050"
      unitRef="pure">0.0059</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="footnoteS000077302FHE-PROAOE_AC000237599_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
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      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="6"
      id="ixv-72052"
      unitRef="pure">0.0055</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-343">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
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     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
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      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="0"
      id="ixv-72053"
      unitRef="usd">56</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="0"
      id="ixv-72054"
      unitRef="usd">184</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="0"
      id="ixv-72055"
      unitRef="usd">324</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237599"
      decimals="0"
      id="ixv-72056"
      unitRef="usd">733</oef:ExpenseExampleYear10>
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     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
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     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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       107 
       
       
     % of the average value of its portfolio. 
       
    
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      contextRef="Pid_S000077302_contentCd_FHE-PRO"
      decimals="4"
      id="ixv-72057"
      unitRef="pure">1.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-423">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-428">
     
       
      
       
        Normally investing at least 80% of assets in equity securities. 
      
     Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. 
      
       
        Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      Investing in common stocks of companies with market capitalizations generally similar to companies in the S&amp;P 500&#xae; Index. 
      Using a disciplined approach designed to construct an equity portfolio with similar risk-return characteristics to the S&amp;P 500&#xae; Index. 
      Employing a disciplined options-based strategy designed to provide downside protection in certain market conditions (i.e., offset or mitigate a decrease in the value of the fund's investments). The extent of this protection will be determined primarily based on the cost of the put options in the marketplace. 
      Managing the options positions in a way that provides diversification of options strike prices and expirations. 
      
    
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      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
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    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_FHE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-461">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
    
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      id="ixv-470">
     
       
      
      Options Risk. 
      
     The fund may purchase or write (i.e., sell) put and call options. Under certain circumstances, the fund may be required to buy or sell the underlying reference at a disadvantageous price, resulting in a loss. Options may involve economic leverage, which could result in greater volatility in price movement. Certain transaction costs associated with purchasing and writing options may impact the fund's returns. 
    
   </oef:RiskTextBlock>
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      contextRef="Pid_S000077302_contentCd_FHE-PRO_RiskMember_HighPortfolioTurnoverMember"
      id="ixv-479">
     
       
      
       
        High Portfolio Turnover. 
      
     High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance. 
      
       
    
   </oef:RiskTextBlock>
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     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 
       
     . 
       
    
   </oef:RiskTextBlock>
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      id="ixv-499">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
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     Performance 
       
    
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    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-511">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
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      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
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      Past performance (before and after taxes) is not an indication of future performance. 
        
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      www.fidelity.com  
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     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_2023"
      decimals="INF"
      id="ixv-72058"
      unitRef="pure">0.1765</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_2024"
      decimals="INF"
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      unitRef="pure">0.1946</oef:AnnlRtrPct>
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      decimals="INF"
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      unitRef="pure">0.1361</oef:AnnlRtrPct>
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          &#160;&#160;&#160;Highest Quarter Return
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      id="ixv-72061"
      unitRef="pure">0.0973</oef:BarChartHighestQuarterlyReturn>
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          &#160;&#160;&#160;Lowest Quarter Return
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      id="ixv-72062"
      unitRef="pure">-0.0379</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-648">2025-03-31</oef:BarChartLowestQuarterlyReturnDate>
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     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-658">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-661"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-668"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000077302_contentCd_FHE-PRO" id="ixv-673"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237599_ReturnBeforeTaxes_01"
      id="ixv-712">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72063"
      unitRef="pure">0.1361</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteFHE-PROS000077302AAR_A_RBT_loc"
      unitRef="pure">0.1347</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributions_01"
      id="ixv-725">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72065"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteFHE-PROS000077302AAR_A_ATD_loc"
      unitRef="pure">0.1329</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-738">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72067"
      unitRef="pure">0.0814</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237599_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteFHE-PROS000077302AAR_A_ATDS_loc"
      unitRef="pure">0.1057</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_FHE-PRO_01"
      id="ixv-752">
         Cboe S&amp;P 500 5% Put Protection Index (PPUT)
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_FHE-PRO_01"
      decimals="4"
      id="ixv-72069"
      unitRef="pure">0.1433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_FHE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72070"
      unitRef="pure">0.1427</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_FHE-PRO_01"
      id="ixv-771">
         S&amp;P 500&#xae; Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_FHE-PRO_01"
      decimals="4"
      id="ixv-72071"
      unitRef="pure">0.1788</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_FHE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72072"
      unitRef="pure">0.1951</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237599" id="ixv-803">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2642">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Hedged Equity Fund 
     /Fidelity Advisor&#xae; Hedged Equity Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2657">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2662">
     
       
     Fidelity&#xae; Hedged Equity Fund seeks capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2667">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2673">
     
       
     The following table describes the fees and expenses that may be incurred when 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 tables 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 $ 
        
       
         
       50,000 
         
       
        
      in the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 31 
        
      of the prospectus 
        
      
       
     and in 
       
     the sales charge 
       
     waiver appendix to 
       
     the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2679"> 
        
      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 the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 31 
        
      of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      decimals="0"
      id="ixv-72073"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2702">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="4"
      id="ixv-72074"
      unitRef="pure">0.0575</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="4"
      id="ixv-72075"
      unitRef="pure">0.0350</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="4"
      id="ixv-72076"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="4"
      id="ixv-72077"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="4"
      id="ixv-72078"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="4"
      id="footnoteAFHE-PROS000077302SHF_AC000237634"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="4"
      id="footnoteAFHE-PROS000077302SHF_AC000237633"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="4"
      id="footnoteAFHE-PROS000077302SHF_BC000237632"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="4"
      id="ixv-72082"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="4"
      id="ixv-72083"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2808"> 
        
      Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:ExpensesDeferredChargesTextBlock contextRef="Pid_S000077302_Cid_C000237632" id="ixv-2818"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-2823">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="ixv-72084"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="ixv-72085"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="ixv-72086"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="ixv-72087"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="ixv-72088"
      unitRef="pure">0.0050</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="ixv-72089"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="ixv-72090"
      unitRef="pure">0.0050</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="ixv-72091"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="ixv-72092"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="ixv-72093"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="ixv-72094"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="ixv-72095"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="ixv-72096"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="ixv-72097"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="ixv-72098"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="ixv-72099"
      unitRef="pure">0.0084</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="ixv-72100"
      unitRef="pure">0.0109</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="ixv-72101"
      unitRef="pure">0.0158</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="ixv-72102"
      unitRef="pure">0.0059</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="ixv-72103"
      unitRef="pure">0.0054</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="footnoteS000077302AFHE-PROAOE_AC000237634_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="footnoteS000077302AFHE-PROAOE_AC000237633_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="footnoteS000077302AFHE-PROAOE_AC000237632_FW"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="footnoteS000077302AFHE-PROAOE_AC000237630_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="footnoteS000077302AFHE-PROAOE_AC000237631_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="6"
      id="ixv-72109"
      unitRef="pure">0.0080</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="6"
      id="ixv-72110"
      unitRef="pure">0.0105</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="6"
      id="ixv-72111"
      unitRef="pure">0.0155</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="6"
      id="ixv-72112"
      unitRef="pure">0.0055</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="6"
      id="ixv-72113"
      unitRef="pure">0.0050</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3061">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3070">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72114"
      unitRef="usd">652</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72115"
      unitRef="usd">652</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72116"
      unitRef="usd">453</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72117"
      unitRef="usd">453</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72118"
      unitRef="usd">258</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72119"
      unitRef="usd">158</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72120"
      unitRef="usd">56</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72121"
      unitRef="usd">56</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72122"
      unitRef="usd">51</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72123"
      unitRef="usd">51</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72124"
      unitRef="usd">823</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72125"
      unitRef="usd">823</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72126"
      unitRef="usd">679</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72127"
      unitRef="usd">679</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72128"
      unitRef="usd">495</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72129"
      unitRef="usd">495</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72130"
      unitRef="usd">184</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72131"
      unitRef="usd">184</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72132"
      unitRef="usd">168</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72133"
      unitRef="usd">168</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72134"
      unitRef="usd">1009</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72135"
      unitRef="usd">1009</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72136"
      unitRef="usd">925</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72137"
      unitRef="usd">925</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72138"
      unitRef="usd">857</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72139"
      unitRef="usd">857</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72140"
      unitRef="usd">324</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72141"
      unitRef="usd">324</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72142"
      unitRef="usd">296</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72143"
      unitRef="usd">296</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72144"
      unitRef="usd">1548</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000077302_Cid_C000237634"
      decimals="0"
      id="ixv-72145"
      unitRef="usd">1548</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72146"
      unitRef="usd">1628</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000077302_Cid_C000237633"
      decimals="0"
      id="ixv-72147"
      unitRef="usd">1628</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72148"
      unitRef="usd">1676</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000077302_Cid_C000237632"
      decimals="0"
      id="ixv-72149"
      unitRef="usd">1676</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72150"
      unitRef="usd">733</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000077302_Cid_C000237630"
      decimals="0"
      id="ixv-72151"
      unitRef="usd">733</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72152"
      unitRef="usd">672</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000077302_Cid_C000237631"
      decimals="0"
      id="ixv-72153"
      unitRef="usd">672</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3378">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3383">
     
       
     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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       107 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      decimals="4"
      id="ixv-72154"
      unitRef="pure">1.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3392">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3397">
     
       
      
       
        Normally investing at least 80% of assets in equity securities. 
      
     Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. 
      
       
        Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      Investing in common stocks of companies with market capitalizations generally similar to companies in the S&amp;P 500&#xae; Index. 
      Using a disciplined approach designed to construct an equity portfolio with similar risk-return characteristics to the S&amp;P 500&#xae; Index. 
      Employing a disciplined options-based strategy designed to provide downside protection in certain market conditions (i.e., offset or mitigate a decrease in the value of the fund's investments). The extent of this protection will be determined primarily based on the cost of the put options in the marketplace. 
      Managing the options positions in a way that provides diversification of options strike prices and expirations. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-3421">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-3430">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_OptionsRiskMember"
      id="ixv-3439">
     
       
      
      Options Risk. 
      
     The fund may purchase or write (i.e., sell) put and call options. Under certain circumstances, the fund may be required to buy or sell the underlying reference at a disadvantageous price, resulting in a loss. Options may involve economic leverage, which could result in greater volatility in price movement. Certain transaction costs associated with purchasing and writing options may impact the fund's returns. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_HighPortfolioTurnoverMember"
      id="ixv-3448">
     
       
      
       
        High Portfolio Turnover. 
      
     High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-3460">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-3468">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3475">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3480">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      institutional.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3485"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3492"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3498"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3503">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3507">
     
       
      
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
      
       
    
   </oef:BarChartNarrativeTextBlock>
    <oef:BarChartDoesNotReflectSalesLoads
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3510"> 
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
     </oef:BarChartDoesNotReflectSalesLoads>
    <oef:AnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_2023"
      decimals="INF"
      id="ixv-72155"
      unitRef="pure">0.1727</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_2024"
      decimals="INF"
      id="ixv-72156"
      unitRef="pure">0.1917</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_2025"
      decimals="INF"
      id="ixv-72157"
      unitRef="pure">0.1334</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3599">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      decimals="4"
      id="ixv-72158"
      unitRef="pure">0.0964</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3609">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3614">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      decimals="4"
      id="ixv-72159"
      unitRef="pure">-0.0380</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3625">2025-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3630">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3635">
     
       
      
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
      
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
      
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances.  
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableDoesReflectSalesLoads
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3638"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3643"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableOneClassOfAfterTaxShown
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3648"> 
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
     </oef:PerformanceTableOneClassOfAfterTaxShown>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3654"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000077302_contentCd_AFHE-PRO"
      id="ixv-3658"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237634_ReturnBeforeTaxes_01"
      id="ixv-3684">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72160"
      unitRef="pure">0.0682</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_A_RBT_loc"
      unitRef="pure">0.1118</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributions_01"
      id="ixv-3699">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72162"
      unitRef="pure">0.0669</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_A_ATD_loc"
      unitRef="pure">0.1104</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-3712">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72164"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237634_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_A_ATDS_loc"
      unitRef="pure">0.0874</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237633_ReturnBeforeTaxes_01"
      id="ixv-3725">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237633_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72166"
      unitRef="pure">0.0911</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237633_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_B_RBT_loc"
      unitRef="pure">0.1170</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237632_ReturnBeforeTaxes_01"
      id="ixv-3738">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237632_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72168"
      unitRef="pure">0.1146</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237632_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_C_RBT_loc"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237630_ReturnBeforeTaxes_01"
      id="ixv-3751">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237630_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72170"
      unitRef="pure">0.1358</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237630_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_D_RBT_loc"
      unitRef="pure">0.1345</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Cid_C000237631_ReturnBeforeTaxes_01"
      id="ixv-3764">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237631_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72172"
      unitRef="pure">0.1362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Cid_C000237631_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAFHE-PROS000077302AAR_E_RBT_loc"
      unitRef="pure">0.1352</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_AFHE-PRO_01"
      id="ixv-3776">
         Cboe S&amp;P 500 5% Put Protection Index (PPUT)
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_AFHE-PRO_01"
      decimals="4"
      id="ixv-72174"
      unitRef="pure">0.1433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_IXUYK_contentCd_AFHE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72175"
      unitRef="pure">0.1427</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_AFHE-PRO_01"
      id="ixv-3795">
         S&amp;P 500&#xae; Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_AFHE-PRO_01"
      decimals="4"
      id="ixv-72176"
      unitRef="pure">0.1788</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000077302_Indexid_SP001_contentCd_AFHE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72177"
      unitRef="pure">0.1951</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237634" id="ixv-3827">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237633" id="ixv-3840">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237632" id="ixv-3853">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237630" id="ixv-3866">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000077302_Cid_C000237631" id="ixv-3879">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9747">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Risk Parity Fund 
     /Fidelity&#xae; Risk Parity Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9760">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9765">
     
       
     Fidelity&#xae; Risk Parity Fund seeks total return. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9770">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9776">
     
       
     The following table describes the fees and expenses that may be incurred when 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 tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9787">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      decimals="0"
      id="ixv-72178"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9802">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="ixv-72179"
      unitRef="pure">0.0060</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="ixv-72180"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="ixv-72181"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="ixv-72182"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="footnoteS000075414GMO-PROAOE_AC000234495_TE"
      unitRef="pure">0.0076</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="footnoteS000075414GMO-PROAOE_BC000234495_FW"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="6"
      id="footnoteS000075414GMO-PROAOE_AC000234495_TW"
      unitRef="pure">0.0073</oef:NetExpensesOverAssets>
    <oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9887"> 
        
      Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class. 
        
     </oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9898">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9907">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="0"
      id="ixv-72186"
      unitRef="usd">75</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="0"
      id="ixv-72187"
      unitRef="usd">239</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="0"
      id="ixv-72188"
      unitRef="usd">418</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234495"
      decimals="0"
      id="ixv-72189"
      unitRef="usd">938</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9964">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9969">
     
       
     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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       51 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      decimals="4"
      id="ixv-72190"
      unitRef="pure">0.51</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9978">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000075414_contentCd_GMO-PRO" id="ixv-9983">
     
       
      
       
        Using quantitative analysis to balance the fund's risk across four risk factors: growth (risk of reduced earnings expectations and increased default risk), inflation (risk of rising consumer inflation),&#160;real rates (risk of rising real interest rates), and liquidity (risk of reduced liquidity). 
      Constructing a factor portfolio for each risk factor using a broad set of asset classes whose primary risk is the associated risk factor. 
      Combining the factor portfolios, seeking to maximize the worst-case risk diversification across a set of market regimes. 
      Allocating the fund's assets across affiliated and unaffiliated mutual funds and Exchange Traded Funds (ETFs) (collectively, underlying funds) and derivatives that provide exposure to a broad range of asset classes including equities (including domestic, international, and emerging markets equities), debt (including investment-grade debt, high yield debt, emerging markets debt, U.S. government securities, leveraged loans and international bonds), commodities and real estate. 
      Investing in underlying funds, derivatives, cash and cash equivalents. 
      Engaging&#160;in transactions that have a leveraging effect on the fund, including long and short investments in derivatives - such as forward contracts, futures, options and swaps - and forward-settling securities, to: create and adjust the fund's investment exposure; enhance total return; hedge against fluctuations in securities prices, interest rates, or currency exchange rates; change the effective duration of the fund's portfolio; manage certain investment risk; manage volatility; and/or substitute for the purchase or sale of securities or currencies. 
      Investing&#160; up to 25% of assets in a wholly-owned subsidiary organized under the laws of the Cayman Islands that invests in commodity-linked total return swaps based on the value of commodities or commodities indexes and in other commodity-linked derivative instruments, commodity- related ETFs and commodity-related exchange-traded notes (ETNs). 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_AssetAllocationRiskMember"
      id="ixv-10010">
     
       
      
      Asset Allocation Risk. 
      
     The fund is subject to risks resulting from the Adviser's asset allocation decisions. The selection of underlying funds and the allocation of the fund's assets among various asset classes could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives. In addition, the fund's active asset allocation strategy may cause the fund to have a risk profile different than that portrayed above from time to time and may increase losses. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_InvestingInOtherFundsMember"
      id="ixv-10019">
     
       
      
      Investing in Other Funds. 
      
     Regulatory restrictions may limit the amount that one fund can invest in another, which means that the fund's manager may not be able to invest as much as it wants to in some other funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives. Underlying funds that are passively managed attempt to track the performance of an unmanaged index of securities and as such their performance could be lower than actively managed funds, which may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline. In addition, errors in the construction of the index tracked by an underlying passively managed fund may have an adverse impact on the performance of such underlying fund. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_InvestingInEtfsAndEtnsMember"
      id="ixv-10028">
     
       
      
      Investing in ETFs and ETNs. 
      
     ETFs and ETNs may trade in the secondary market at prices below the value of their underlying portfolios and may not be liquid. ETFs that track an index are subject to tracking error and may be unable to sell poorly performing assets that are included in their index or other benchmark.&#160; ETNs are subject to the risks associated with debt securities, including counterparty risk of the issuer. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-10039">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-10048">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_CorrelationRiskMember"
      id="ixv-10057">
     
       
      
      Correlation Risk. 
      
     The fund's investment strategy seeks to balance risk across multiple asset classes and, within each asset class, across different countries and investments. To the extent the asset classes or the selected countries and investments become correlated in a way not anticipated&#160; by the Adviser, the fund's risk allocation process may result in magnified risks and loss instead of reducing the risk of loss. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-10068">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_CurrencyExposureMember"
      id="ixv-10083">
     
       
      
      Currency Exposure. 
      
     Because the fund is normally exposed to foreign currencies, it could experience losses based solely on the weakness of foreign currencies versus the U.S. dollar and changes in the exchange rates between foreign currencies and the U.S. dollar. Currency risk may be particularly high to the extent that a fund invests in foreign currencies or engages in foreign currency transactions that are economically tied to emerging markets countries. These emerging markets currency transactions may present market, credit, currency, liquidity, legal, political and other risks different from, or greater than, the risks of investing in developed foreign currencies or engaging in foreign currency transactions that are economically tied to developed foreign countries. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_SubsidiaryRiskMember"
      id="ixv-10092">
     
       
      
      Subsidiary Risk. 
      
     Investment in Fidelity Risk Parity Cayman Ltd., an unregistered subsidiary, is not subject to the investor protections of the Investment Company Act of 1940 (1940 Act) and is subject to the risks associated with investing in derivatives and commodity-linked investing in general. Changes in tax and other laws could negatively affect investments in the subsidiary. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_PrepaymentMember"
      id="ixv-10101">
     
       
      
      Prepayment. 
      
     The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-10110">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-10121">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_LeverageRiskMember"
      id="ixv-10130">
     
       
      
      Leverage Risk. 
      
     Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of futures, forwards, options, swaps, and other derivative instruments may result in losses. The value of these derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-10139">
     
       
      
      Quantitative Investing. 
      
     Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_CommodityLinkedInvestingMember"
      id="ixv-10148">
     
       
      
      Commodity-Linked Investing. 
      
     The value of commodities and commodity-linked investments may be affected by the performance of the overall commodities markets as well as weather, political, tax, and other regulatory and market developments. Commodity-linked investments may be more volatile and less liquid than the underlying commodity, instruments, or measures. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_CommodityFuturesMember"
      id="ixv-10157">
     
       
      
      Commodity Futures. 
      
     Investments in commodity futures contracts are also subject to the risk of the failure of any of the exchanges on which the fund's positions trade or of its clearinghouses or counterparties. In addition, certain commodity exchanges limit fluctuations in certain futures contract prices during a single day by regulations referred to as "daily price fluctuation limits" or "daily limits." Under such daily limits, during a single trading day no trades may be executed at prices beyond the daily limit. If triggered, these limits could prevent the fund from liquidating unfavorable positions and subject the fund to losses or prevent it from entering into desired trades during the particular trading day. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-10167">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-10175">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10182">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10187">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and two hypothetical composites of market indexes 
      &#160; 
      over various periods of time. 
        
      
       
     The hypothetical composites of market indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10192"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and two hypothetical composites of market indexes 
      &#160; 
      over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10201"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10207"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10212">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_2023"
      decimals="INF"
      id="ixv-72191"
      unitRef="pure">0.0844</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_2024"
      decimals="INF"
      id="ixv-72192"
      unitRef="pure">0.0687</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_2025"
      decimals="INF"
      id="ixv-72193"
      unitRef="pure">0.2108</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10300">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      decimals="4"
      id="ixv-72194"
      unitRef="pure">0.0956</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10310">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10315">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      decimals="4"
      id="ixv-72195"
      unitRef="pure">-0.0451</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10326">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10331">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10336">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10339"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10346"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000075414_contentCd_GMO-PRO"
      id="ixv-10351"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234495_ReturnBeforeTaxes_01"
      id="ixv-10390">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72196"
      unitRef="pure">0.2108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteGMO-PROS000075414AAR_A_RBT_loc"
      unitRef="pure">0.0960</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributions_01"
      id="ixv-10403">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72198"
      unitRef="pure">0.1858</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteGMO-PROS000075414AAR_A_ATD_loc"
      unitRef="pure">0.0700</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-10416">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72200"
      unitRef="pure">0.1253</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234495_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteGMO-PROS000075414AAR_A_ATDS_loc"
      unitRef="pure">0.0625</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_GMO-PRO_01"
      id="ixv-10430">
         Fidelity Risk Parity Composite Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_GMO-PRO_01"
      decimals="4"
      id="ixv-72202"
      unitRef="pure">0.1622</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_GMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72203"
      unitRef="pure">0.1238</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_GMO-PRO_01"
      id="ixv-10449">
         Fidelity Risk Parity Custom Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_GMO-PRO_01"
      decimals="4"
      id="ixv-72204"
      unitRef="pure">0.1576</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_GMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72205"
      unitRef="pure">0.0662</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_GMO-PRO_01"
      id="ixv-10468">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_GMO-PRO_01"
      decimals="4"
      id="ixv-72206"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_GMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72207"
      unitRef="pure">0.1880</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234495" id="ixv-10500">2022-09-01</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12457">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; SAI Convertible Arbitrage Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12466">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12471">
     
       
     Fidelity&#xae; SAI Convertible Arbitrage Fund seeks total return through a combination of current income and capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12476">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12482">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12492">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      decimals="0"
      id="ixv-72208"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12507">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="ixv-72209"
      unitRef="pure">0.0140</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="ixv-72210"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="ixv-72211"
      unitRef="pure">0.0009</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="footnoteS000081303SCA-PROAOE_AC000243999_TE"
      unitRef="pure">0.0149</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="footnoteS000081303SCA-PROAOE_BC000243999_FW"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="6"
      id="footnoteS000081303SCA-PROAOE_AC000243999_TW"
      unitRef="pure">0.0146</oef:NetExpensesOverAssets>
    <oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12582"> 
        
      Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses.  
      For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses.  
      As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the fund. 
        
     </oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12595">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12604">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="0"
      id="ixv-72215"
      unitRef="usd">149</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="0"
      id="ixv-72216"
      unitRef="usd">467</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="0"
      id="ixv-72217"
      unitRef="usd">809</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081303_Cid_C000243999"
      decimals="0"
      id="ixv-72218"
      unitRef="usd">1776</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12661">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12666">
     
       
     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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       363 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      decimals="4"
      id="ixv-72219"
      unitRef="pure">3.63</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12675">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12680">
     
       
      
       
        Employing a convertible arbitrage strategy, which involves gaining exposure to a portfolio of convertible securities (typically debt securities or preferred stocks that can be exchanged for, or convert automatically to, common stock), and hedging the equity risk inherent in these securities by selling short the common stock into which the securities may be converted. 
      Executing the fund's convertible arbitrage strategy through investments in derivative instruments, principally total return swap agreements on individual securities. 
      Providing income and returns from investments in interest and dividend-paying convertible securities and trading based on the pricing inefficiencies of the options embedded in the convertible securities. 
      Engaging in transactions that may have a leveraging effect on the fund, including long and short investments in derivatives - such as swaps (including credit default swaps and total return swaps), forward contracts, futures, and options - to seek to hedge risks such as issuer, equity market, credit, interest rate and foreign currency risks, or to enhance the returns of the fund. 
      Investing in convertible debt, non-convertible debt, and preferred securities (either directly or through total return swaps) of any maturity and any quality (including unrated debt securities and lower-quality debt securities (those of less than investment 
        -grade quality, also referred to as high yield debt securities or junk bonds)). 
      Investing in securities of small- and mid-capitalization companies (generally defined as those companies with market capitalizations similar to those of companies included in the Russell 2500&#x2122; Index), directly or through the use of derivatives. 
      Investing in domestic and foreign issuers. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_ConvertibleArbitrageStrategyMember"
      id="ixv-12708">
     
       
      
      Convertible Arbitrage Strategy. 
      
     Convertible arbitrage involves purchasing a portfolio of convertible securities, generally convertible bonds, and hedging all or a portion of the equity risk by selling short the underlying common stock. Convertible arbitrage may involve the risk of default in interest or principal payments, which could result in a loss of income to the fund, or a decline in the market value of the securities. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_ShortSalesAndLeverageRiskMember"
      id="ixv-12717">
     
       
      
      Short Sales and Leverage Risk. 
      
     Short sales pose more risk than long positions. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Regulatory bans on certain short selling activities may prevent a fund from fully implementing its strategy. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of futures, forwards, options, swaps, and other derivative instruments may result in losses. The value of these derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized&#160;activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-12728">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_ForeignExposureMember"
      id="ixv-12737">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-12746">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     A decline in the credit quality of an issuer or a provider of credit support (such as guarantees) or a maturity-shortening structure (such as demand and put features) for a security can cause the price of a security to decrease. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. 
     The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-12763">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_MidCapInvestingMember"
      id="ixv-12772">
     
       
      
      Mid Cap Investing. 
      
     The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_SmallCapInvestingMember"
      id="ixv-12781">
     
       
      
      Small Cap Investing. 
      
     The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_HighPortfolioTurnoverMember"
      id="ixv-12790">
     
       
      
      High Portfolio Turnover. 
      
     High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-12800">
     
       
     In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-12805">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-12813">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12820">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12825">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12830"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12837"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12843"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12848">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_2024"
      decimals="INF"
      id="ixv-72220"
      unitRef="pure">0.1063</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_2025"
      decimals="INF"
      id="ixv-72221"
      unitRef="pure">0.1224</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12933">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      decimals="4"
      id="ixv-72222"
      unitRef="pure">0.0392</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12943">2025-09-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12948">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      decimals="4"
      id="ixv-72223"
      unitRef="pure">0.0186</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12958">2024-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12963">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12968">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12971"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12978"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081303_contentCd_SCA-PRO"
      id="ixv-12983"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081303_Cid_C000243999_ReturnBeforeTaxes_01"
      id="ixv-13021">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72224"
      unitRef="pure">0.1224</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSCA-PROS000081303AAR_A_RBT_loc"
      unitRef="pure">0.1047</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributions_01"
      id="ixv-13034">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72226"
      unitRef="pure">0.0818</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSCA-PROS000081303AAR_A_ATD_loc"
      unitRef="pure">0.0755</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-13047">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72228"
      unitRef="pure">0.0720</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Cid_C000243999_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSCA-PROS000081303AAR_A_ATDS_loc"
      unitRef="pure">0.0679</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081303_Indexid_LB057_contentCd_SCA-PRO_01"
      id="ixv-13061">
         Bloomberg U.S. 3-Month Treasury Bellwether Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Indexid_LB057_contentCd_SCA-PRO_01"
      decimals="4"
      id="ixv-72230"
      unitRef="pure">0.0423</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Indexid_LB057_contentCd_SCA-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72231"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081303_Indexid_LB001_contentCd_SCA-PRO_01"
      id="ixv-13080">
         Bloomberg U.S. Aggregate Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Indexid_LB001_contentCd_SCA-PRO_01"
      decimals="4"
      id="ixv-72232"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081303_Indexid_LB001_contentCd_SCA-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72233"
      unitRef="pure">0.0587</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000081303_Cid_C000243999" id="ixv-13112">2023-09-12</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14536">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Risk Parity Fund 
     /Fidelity Advisor&#xae; Risk Parity Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14551">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14556">
     
       
     Fidelity&#xae; Risk Parity Fund seeks total return. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14561">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14567">
     
       
     The following table describes the fees and expenses that may be incurred when 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 tables 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 $ 
        
       
         
       50,000 
         
       
        
      in the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 42 
        
      of the prospectus 
        
      
       
     and in 
       
     the sales charge 
       
     waiver appendix to 
       
     the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14573"> 
        
      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 the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 42 
        
      of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      decimals="0"
      id="ixv-72234"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14596">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="4"
      id="ixv-72235"
      unitRef="pure">0.0575</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="4"
      id="ixv-72236"
      unitRef="pure">0.0350</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="4"
      id="ixv-72237"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="4"
      id="ixv-72238"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="4"
      id="ixv-72239"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="4"
      id="footnoteAGMO-PROS000075414SHF_AC000234496"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="4"
      id="footnoteAGMO-PROS000075414SHF_AC000234491"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="4"
      id="footnoteAGMO-PROS000075414SHF_BC000234492"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="4"
      id="ixv-72243"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="4"
      id="ixv-72244"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14702"> 
        
      Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:ExpensesDeferredChargesTextBlock contextRef="Pid_S000075414_Cid_C000234492" id="ixv-14712"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14717">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="ixv-72245"
      unitRef="pure">0.0060</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="ixv-72246"
      unitRef="pure">0.0060</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="ixv-72247"
      unitRef="pure">0.0060</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="ixv-72248"
      unitRef="pure">0.0060</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="ixv-72249"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="ixv-72250"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="ixv-72251"
      unitRef="pure">0.0050</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="ixv-72252"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="ixv-72253"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="ixv-72254"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="ixv-72255"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="ixv-72256"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="ixv-72257"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="ixv-72258"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="ixv-72259"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="ixv-72260"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="ixv-72261"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="ixv-72262"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="ixv-72263"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="ixv-72264"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234496_TE"
      unitRef="pure">0.0102</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234491_TE"
      unitRef="pure">0.0126</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234492_TE"
      unitRef="pure">0.0177</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234493_TE"
      unitRef="pure">0.0077</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234494_TE"
      unitRef="pure">0.0072</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_BC000234496_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_BC000234491_FW"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_BC000234492_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_BC000234493_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_BC000234494_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234496_TW"
      unitRef="pure">0.0098</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234491_TW"
      unitRef="pure">0.0123</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234492_TW"
      unitRef="pure">0.0173</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234493_TW"
      unitRef="pure">0.0073</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="6"
      id="footnoteS000075414AGMO-PROAOE_AC000234494_TW"
      unitRef="pure">0.0068</oef:NetExpensesOverAssets>
    <oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-14998"> 
        
      Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class. 
        
     </oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15009">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15018">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72280"
      unitRef="usd">669</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72281"
      unitRef="usd">669</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72282"
      unitRef="usd">471</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72283"
      unitRef="usd">471</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72284"
      unitRef="usd">276</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72285"
      unitRef="usd">176</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72286"
      unitRef="usd">75</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72287"
      unitRef="usd">75</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72288"
      unitRef="usd">69</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72289"
      unitRef="usd">69</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72290"
      unitRef="usd">876</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72291"
      unitRef="usd">876</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72292"
      unitRef="usd">732</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72293"
      unitRef="usd">732</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72294"
      unitRef="usd">552</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72295"
      unitRef="usd">552</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72296"
      unitRef="usd">241</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72297"
      unitRef="usd">241</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72298"
      unitRef="usd">225</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72299"
      unitRef="usd">225</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72300"
      unitRef="usd">1101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72301"
      unitRef="usd">1101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72302"
      unitRef="usd">1014</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72303"
      unitRef="usd">1014</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72304"
      unitRef="usd">954</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72305"
      unitRef="usd">954</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72306"
      unitRef="usd">423</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72307"
      unitRef="usd">423</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72308"
      unitRef="usd">395</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72309"
      unitRef="usd">395</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72310"
      unitRef="usd">1746</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075414_Cid_C000234496"
      decimals="0"
      id="ixv-72311"
      unitRef="usd">1746</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72312"
      unitRef="usd">1816</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075414_Cid_C000234491"
      decimals="0"
      id="ixv-72313"
      unitRef="usd">1816</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72314"
      unitRef="usd">1882</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075414_Cid_C000234492"
      decimals="0"
      id="ixv-72315"
      unitRef="usd">1882</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72316"
      unitRef="usd">949</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075414_Cid_C000234493"
      decimals="0"
      id="ixv-72317"
      unitRef="usd">949</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72318"
      unitRef="usd">889</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075414_Cid_C000234494"
      decimals="0"
      id="ixv-72319"
      unitRef="usd">889</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15326">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15331">
     
       
     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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       51 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      decimals="4"
      id="ixv-72320"
      unitRef="pure">0.51</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15340">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15345">
     
       
      
       
        Using quantitative analysis to balance the fund's risk across four risk factors: growth (risk of reduced earnings expectations and increased default risk), inflation (risk of rising consumer inflation),&#160;real rates (risk of rising real interest rates), and liquidity (risk of reduced liquidity). 
      Constructing a factor portfolio for each risk factor using a broad set of asset classes whose primary risk is the associated risk factor. 
      Combining the factor portfolios, seeking to maximize the worst-case risk diversification across a set of market regimes. 
      Allocating the fund's assets across affiliated and unaffiliated mutual funds and Exchange Traded Funds (ETFs) (collectively, underlying funds) and derivatives that provide exposure to a broad range of asset classes including equities (including domestic, international, and emerging markets equities), debt (including investment-grade debt, high yield debt, emerging markets debt, U.S. government securities, leveraged loans and international bonds), commodities and real estate. 
      Investing in underlying funds, derivatives, cash and cash equivalents. 
      Engaging&#160;in transactions that have a leveraging effect on the fund, including long and short investments in derivatives - such as forward contracts, futures, options and swaps - and forward-settling securities, to: create and adjust the fund's investment exposure; enhance total return; hedge against fluctuations in securities prices, interest rates, or currency exchange rates; change the effective duration of the fund's portfolio; manage certain investment risk; manage volatility; and/or substitute for the purchase or sale of securities or currencies. 
      Investing&#160; up to 25% of assets in a wholly-owned subsidiary organized under the laws of the Cayman Islands that invests in commodity-linked total return swaps based on the value of commodities or commodities indexes and in other commodity-linked derivative instruments, commodity- related ETFs and commodity-related exchange-traded notes (ETNs). 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_AssetAllocationRiskMember"
      id="ixv-15372">
     
       
      
      Asset Allocation Risk. 
      
     The fund is subject to risks resulting from the Adviser's asset allocation decisions. The selection of underlying funds and the allocation of the fund's assets among various asset classes could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives. In addition, the fund's active asset allocation strategy may cause the fund to have a risk profile different than that portrayed above from time to time and may increase losses. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_InvestingInOtherFundsMember"
      id="ixv-15381">
     
       
      
      Investing in Other Funds. 
      
     Regulatory restrictions may limit the amount that one fund can invest in another, which means that the fund's manager may not be able to invest as much as it wants to in some other funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives. Underlying funds that are passively managed attempt to track the performance of an unmanaged index of securities and as such their performance could be lower than actively managed funds, which may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline. In addition, errors in the construction of the index tracked by an underlying passively managed fund may have an adverse impact on the performance of such underlying fund. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_InvestingInEtfsAndEtnsMember"
      id="ixv-15390">
     
       
      
      Investing in ETFs and ETNs. 
      
     ETFs and ETNs may trade in the secondary market at prices below the value of their underlying portfolios and may not be liquid. ETFs that track an index are subject to tracking error and may be unable to sell poorly performing assets that are included in their index or other benchmark.&#160; ETNs are subject to the risks associated with debt securities, including counterparty risk of the issuer. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-15401">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-15410">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_CorrelationRiskMember"
      id="ixv-15419">
     
       
      
      Correlation Risk. 
      
     The fund's investment strategy seeks to balance risk across multiple asset classes and, within each asset class, across different countries and investments. To the extent the asset classes or the selected countries and investments become correlated in a way not anticipated&#160; by the Adviser, the fund's risk allocation process may result in magnified risks and loss instead of reducing the risk of loss. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-15430">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_CurrencyExposureMember"
      id="ixv-15445">
     
       
      
      Currency Exposure. 
      
     Because the fund is normally exposed to foreign currencies, it could experience losses based solely on the weakness of foreign currencies versus the U.S. dollar and changes in the exchange rates between foreign currencies and the U.S. dollar. Currency risk may be particularly high to the extent that a fund invests in foreign currencies or engages in foreign currency transactions that are economically tied to emerging markets countries. These emerging markets currency transactions may present market, credit, currency, liquidity, legal, political and other risks different from, or greater than, the risks of investing in developed foreign currencies or engaging in foreign currency transactions that are economically tied to developed foreign countries. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_SubsidiaryRiskMember"
      id="ixv-15454">
     
       
      
      Subsidiary Risk. 
      
     Investment in Fidelity Risk Parity Cayman Ltd., an unregistered subsidiary, is not subject to the investor protections of the Investment Company Act of 1940 (1940 Act) and is subject to the risks associated with investing in derivatives and commodity-linked investing in general. Changes in tax and other laws could negatively affect investments in the subsidiary. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_PrepaymentMember"
      id="ixv-15463">
     
       
      
      Prepayment. 
      
     The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-15472">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-15483">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_LeverageRiskMember"
      id="ixv-15492">
     
       
      
      Leverage Risk. 
      
     Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of futures, forwards, options, swaps, and other derivative instruments may result in losses. The value of these derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-15501">
     
       
      
      Quantitative Investing. 
      
     Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_CommodityLinkedInvestingMember"
      id="ixv-15510">
     
       
      
      Commodity-Linked Investing. 
      
     The value of commodities and commodity-linked investments may be affected by the performance of the overall commodities markets as well as weather, political, tax, and other regulatory and market developments. Commodity-linked investments may be more volatile and less liquid than the underlying commodity, instruments, or measures. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_CommodityFuturesMember"
      id="ixv-15519">
     
       
      
      Commodity Futures. 
      
     Investments in commodity futures contracts are also subject to the risk of the failure of any of the exchanges on which the fund's positions trade or of its clearinghouses or counterparties. In addition, certain commodity exchanges limit fluctuations in certain futures contract prices during a single day by regulations referred to as "daily price fluctuation limits" or "daily limits." Under such daily limits, during a single trading day no trades may be executed at prices beyond the daily limit. If triggered, these limits could prevent the fund from liquidating unfavorable positions and subject the fund to losses or prevent it from entering into desired trades during the particular trading day. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-15529">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-15537">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15544">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15549">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and two hypothetical composites of market indexes 
      &#160; 
      over various periods of time. 
        
      
       
     The hypothetical composites of market indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      institutional.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15554"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and two hypothetical composites of market indexes 
      &#160; 
      over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15563"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15569"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15574">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15578">
     
       
      
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
      
       
    
   </oef:BarChartNarrativeTextBlock>
    <oef:BarChartDoesNotReflectSalesLoads
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15581"> 
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
     </oef:BarChartDoesNotReflectSalesLoads>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_2023"
      decimals="INF"
      id="ixv-72321"
      unitRef="pure">0.0818</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_2024"
      decimals="INF"
      id="ixv-72322"
      unitRef="pure">0.0666</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_2025"
      decimals="INF"
      id="ixv-72323"
      unitRef="pure">0.2075</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15670">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      decimals="4"
      id="ixv-72324"
      unitRef="pure">0.0946</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15680">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15685">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      decimals="4"
      id="ixv-72325"
      unitRef="pure">-0.0449</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15696">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15701">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15706">
     
       
      
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
      
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
      
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances.  
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableDoesReflectSalesLoads
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15709"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15714"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableOneClassOfAfterTaxShown
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15719"> 
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
     </oef:PerformanceTableOneClassOfAfterTaxShown>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15725"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000075414_contentCd_AGMO-PRO"
      id="ixv-15729"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234496_ReturnBeforeTaxes_01"
      id="ixv-15755">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72326"
      unitRef="pure">0.1380</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_A_RBT_loc"
      unitRef="pure">0.0719</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributions_01"
      id="ixv-15770">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72328"
      unitRef="pure">0.1161</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_A_ATD_loc"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-15783">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72330"
      unitRef="pure">0.0822</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234496_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_A_ATDS_loc"
      unitRef="pure">0.0450</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234491_ReturnBeforeTaxes_01"
      id="ixv-15796">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234491_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72332"
      unitRef="pure">0.1623</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234491_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_B_RBT_loc"
      unitRef="pure">0.0765</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234492_ReturnBeforeTaxes_01"
      id="ixv-15809">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234492_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72334"
      unitRef="pure">0.1893</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234492_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_C_RBT_loc"
      unitRef="pure">0.0822</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234493_ReturnBeforeTaxes_01"
      id="ixv-15822">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234493_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72336"
      unitRef="pure">0.2111</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234493_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_D_RBT_loc"
      unitRef="pure">0.0929</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Cid_C000234494_ReturnBeforeTaxes_01"
      id="ixv-15835">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234494_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72338"
      unitRef="pure">0.2116</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Cid_C000234494_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGMO-PROS000075414AAR_E_RBT_loc"
      unitRef="pure">0.0937</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_AGMO-PRO_01"
      id="ixv-15847">
         Fidelity Risk Parity Composite Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_AGMO-PRO_01"
      decimals="4"
      id="ixv-72340"
      unitRef="pure">0.1622</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXWWB_contentCd_AGMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72341"
      unitRef="pure">0.1173</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_AGMO-PRO_01"
      id="ixv-15866">
         Fidelity Risk Parity Custom Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_AGMO-PRO_01"
      decimals="4"
      id="ixv-72342"
      unitRef="pure">0.1576</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_IXSSC_contentCd_AGMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72343"
      unitRef="pure">0.0611</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_AGMO-PRO_01"
      id="ixv-15885">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_AGMO-PRO_01"
      decimals="4"
      id="ixv-72344"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075414_Indexid_MS159_contentCd_AGMO-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72345"
      unitRef="pure">0.1804</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234496" id="ixv-15917">2022-07-07</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234491" id="ixv-15930">2022-07-07</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234492" id="ixv-15943">2022-07-07</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234493" id="ixv-15956">2022-07-07</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075414_Cid_C000234494" id="ixv-15969">2022-07-07</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-21993">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Equity Market Neutral Fund 
     /Fidelity&#xae; Equity Market Neutral Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22008">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22013">
     
       
     Fidelity&#xae; Equity Market Neutral Fund seeks capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22018">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22024">
     
       
     The following table describes the fees and expenses that may be incurred when 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 tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22035">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      decimals="0"
      id="ixv-72346"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22050">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="ixv-72347"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="ixv-72348"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="ixv-72349"
      unitRef="pure">0.0167</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="ixv-72350"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="footnoteS000084938EMN-PROAOE_AC000249702_TE"
      unitRef="pure">0.0270</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="footnoteS000084938EMN-PROAOE_BC000249702_FW"
      unitRef="pure">-0.0157</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="6"
      id="footnoteS000084938EMN-PROAOE_AC000249702_TW"
      unitRef="pure">0.0113</oef:NetExpensesOverAssets>
    <oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22135"> 
        
      Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class. 
        
     </oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22146">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22155">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="0"
      id="ixv-72354"
      unitRef="usd">115</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="0"
      id="ixv-72355"
      unitRef="usd">636</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="0"
      id="ixv-72356"
      unitRef="usd">1240</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249702"
      decimals="0"
      id="ixv-72357"
      unitRef="usd">2875</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22212">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22217">
     
       
     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 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 
       
       
     %  
      
       
     of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      decimals="4"
      id="ixv-72358"
      unitRef="pure">0.59</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22235">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22240">
     
       
      
      Normally investing at least 80% of assets in equity securities and equity related derivative instruments. 
      
     Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. 
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      Investing both long and short in equities, both directly and indirectly through the use of derivatives, such as, contracts for difference (CFD), futures, options, and swap agreements, and/or a combination of the above. 
      Investing in domestic and foreign issuers, including emerging markets, that are generally denominated in the local currency of the issuer. Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low-to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics. 
      Utilizing forward foreign currency exchange contracts for hedging purposes.  
      Utilizing a market neutral strategy that seeks to produce returns that have a low correlation to the returns of the developed and emerging equity markets in which the fund invests, with no bias towards general stock market risk (beta), style, country or sector. 
      Using a disciplined portfolio construction process to select investments by employing both fundamental and quantitative analysis, taking long positions in securities that are believed to be undervalued and shorting a portion of the portfolio believed to be overvalued. 
      Investing in U.S. Government securities, short-term investment funds, cash, and cash equivalents for investment purposes and to maintain collateral to cover derivatives positions. 
      Using long and short derivatives for hedging, efficient portfolio management and investment purposes. 
      Lending portfolio securities to earn income for the fund. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_ContractsForDifferenceCfdRiskMember"
      id="ixv-22271">
     
       
      
      Contracts for Difference (CFD) Risk. 
      
     The fund may invest in Contracts for Difference (CFD), an OTC derivative total return swap transaction where the underlying reference asset will be a single equity stock or financial index. The fund could experience losses if the underlying asset or reference does not perform as anticipated. The fund may only close out a swap with its particular counterparty and may only transfer a position with the consent of that counterparty. Short CFD transactions have the potential for unlimited losses, regardless of the size of the initial investment. CFD agreements may be used to obtain exposure to a security or market without owning or taking physical custody of such security or investing directly in such market. CFD exposure may effectively add leverage to the fund's portfolio because, in addition to its total net assets, the fund would be subject to investment exposure on the notional amount of the swap. CFDs are subject to the risk that a counterparty will default on its payment obligations to the fund. CFD agreements also bear the risk that the fund will not be able to meet its obligation to the counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_FuturesContractRiskMember"
      id="ixv-22280">
     
       
      
      Futures Contract Risk. 
      
     The fund may invest in bond, currency, equity, index, and interest rate futures contracts. Certain futures contract markets are highly volatile, the use of futures may increase the volatility of the fund's net asset value per share (NAV), and futures contracts may be illiquid or less liquid than the underlying reference. Futures are traded on exchanges that may limit fluctuations in futures contract prices by imposing a maximum permissible daily price movement. The fund may be disadvantaged if it is prohibited from executing a trade outside the daily permissible price movement. Positions in futures contracts may be closed out only on the exchange on which they were entered into or through a linked exchange, and no secondary market exists for such contracts. Futures positions are marked to market each day and variation margin payment must be paid to or by the fund. Because of the low margin deposits normally required in futures trading, it is possible that the fund may employ a high degree of leverage in the portfolio. For certain types of futures contracts, losses are theoretically unlimited. Moreover, futures contracts executed (if any) on foreign exchanges may not provide the same protection as U.S. exchanges. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_ShortSalesAndLeverageRiskMember"
      id="ixv-22289">
     
       
      
      Short Sales and Leverage Risk. 
      
     Short sales pose more risk than long positions. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Regulatory bans on certain short selling activities may prevent a fund from fully implementing its strategy. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of derivative instruments may result in losses. The value of derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-22298">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-22307">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_GeographicExposureToEuropeMember"
      id="ixv-22322">
     
       
      
      Geographic Exposure to Europe. 
      
     Because the fund invests a meaningful portion of its assets in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_ForeignCurrencyTransactionsMember"
      id="ixv-22331">
     
       
      
      Foreign Currency Transactions. 
      
     The fund may enter into forward foreign currency exchange contracts for hedging purposes. A forward foreign currency exchange contract, which involves an obligation to purchase or sell a specific currency at a future date at a price set at the time of the contract, reduces a fund's exposure to changes in the value of the currency it will deliver and increases its exposure to changes in the value of the currency it will receive for the duration of the contract. Foreign exchange rates can be extremely volatile and the degree of volatility of the market or in the direction of the market from that anticipated by the Adviser may result in losses to the fund. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-22340">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-22349">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_SwapsRiskMember"
      id="ixv-22358">
     
       
      
      Swaps Risk. 
      
     The fund may invest in excess return and total return swaps. Swaps may be difficult to value and may be illiquid. The fund could experience losses if the underlying asset or reference does not perform as anticipated. Certain swaps have the potential for unlimited losses, regardless of the size of the initial investment. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-22367">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-22375">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22382">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22387">
     
       
      
       The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.  
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus 
     . 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22393"> 
        
      The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.  
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22400"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22406"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22411">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_2025"
      decimals="INF"
      id="ixv-72359"
      unitRef="pure">0.1267</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22493">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      decimals="4"
      id="ixv-72360"
      unitRef="pure">0.0724</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22503">2025-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22508">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      decimals="4"
      id="ixv-72361"
      unitRef="pure">0.0069</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22518">2025-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22523">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22528">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22531"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22538"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000084938_contentCd_EMN-PRO"
      id="ixv-22543"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249702_ReturnBeforeTaxes_01"
      id="ixv-22582">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72362"
      unitRef="pure">0.1267</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEMN-PROS000084938AAR_A_RBT_loc"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributions_01"
      id="ixv-22595">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72364"
      unitRef="pure">0.1261</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEMN-PROS000084938AAR_A_ATD_loc"
      unitRef="pure">0.0570</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-22608">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72366"
      unitRef="pure">0.0755</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249702_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEMN-PROS000084938AAR_A_ATDS_loc"
      unitRef="pure">0.0439</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_EMN-PRO_01"
      id="ixv-22622">
         Bloomberg U.S. 3-Month Treasury Bellwether Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_EMN-PRO_01"
      decimals="4"
      id="ixv-72368"
      unitRef="pure">0.0423</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_EMN-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72369"
      unitRef="pure">0.0455</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_EMN-PRO_01"
      id="ixv-22641">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_EMN-PRO_01"
      decimals="4"
      id="ixv-72370"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_EMN-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72371"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249702" id="ixv-22673">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24412">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Equity Market Neutral Fund 
     /Fidelity Advisor&#xae; Equity Market Neutral Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24429">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24434">
     
       
     Fidelity&#xae; Equity Market Neutral Fund seeks capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24439">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24445">
     
       
     The following table describes the fees and expenses that may be incurred when 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 tables 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 $ 
        
       
         
       50,000 
         
       
        
      in the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page  
       
        
      39 
       of the prospectus 
        
      
       
     and in the sales charge waiver appendix to the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24451"> 
        
      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 the fund or certain other Fidelity 
        
      &#xae; 
        
      funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page  
       
        
      39 
       of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      decimals="0"
      id="ixv-72372"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24469">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="4"
      id="ixv-72373"
      unitRef="pure">0.0575</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="4"
      id="ixv-72374"
      unitRef="pure">0.0350</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="4"
      id="ixv-72375"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="4"
      id="ixv-72376"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="4"
      id="ixv-72377"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="4"
      id="footnoteAEMN-PROS000084938SHF_AC000249704"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="4"
      id="footnoteAEMN-PROS000084938SHF_AC000249703"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="4"
      id="footnoteAEMN-PROS000084938SHF_BC000249705"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="4"
      id="ixv-72381"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="4"
      id="ixv-72382"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24575"> 
        
      Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:ExpensesDeferredChargesTextBlock contextRef="Pid_S000084938_Cid_C000249705" id="ixv-24585"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24590">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="ixv-72383"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="ixv-72384"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="ixv-72385"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="ixv-72386"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="ixv-72387"
      unitRef="pure">0.0095</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="ixv-72388"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="ixv-72389"
      unitRef="pure">0.0050</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="ixv-72390"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="ixv-72391"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="ixv-72392"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="ixv-72393"
      unitRef="pure">0.0173</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="ixv-72394"
      unitRef="pure">0.0173</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="ixv-72395"
      unitRef="pure">0.0175</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="ixv-72396"
      unitRef="pure">0.0174</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="ixv-72397"
      unitRef="pure">0.0173</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="ixv-72398"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="ixv-72399"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="ixv-72400"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="ixv-72401"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="ixv-72402"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249704_TE"
      unitRef="pure">0.0301</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249703_TE"
      unitRef="pure">0.0326</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249705_TE"
      unitRef="pure">0.0378</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249701_TE"
      unitRef="pure">0.0277</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249700_TE"
      unitRef="pure">0.0271</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_BC000249704_FW"
      unitRef="pure">-0.0163</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_BC000249703_FW"
      unitRef="pure">-0.0163</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_BC000249705_FW"
      unitRef="pure">-0.0165</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_BC000249701_FW"
      unitRef="pure">-0.0164</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_BC000249700_FW"
      unitRef="pure">-0.0163</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249704_TW"
      unitRef="pure">0.0138</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249703_TW"
      unitRef="pure">0.0163</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249705_TW"
      unitRef="pure">0.0213</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249701_TW"
      unitRef="pure">0.0113</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="6"
      id="footnoteS000084938AEMN-PROAOE_AC000249700_TW"
      unitRef="pure">0.0108</oef:NetExpensesOverAssets>
    <oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24871"> 
        
      Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class. 
        
     </oef:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24882">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-24891">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72418"
      unitRef="usd">707</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72419"
      unitRef="usd">707</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72420"
      unitRef="usd">510</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72421"
      unitRef="usd">510</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72422"
      unitRef="usd">316</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72423"
      unitRef="usd">216</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72424"
      unitRef="usd">115</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72425"
      unitRef="usd">115</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72426"
      unitRef="usd">110</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72427"
      unitRef="usd">110</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72428"
      unitRef="usd">1256</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72429"
      unitRef="usd">1256</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72430"
      unitRef="usd">1120</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72431"
      unitRef="usd">1120</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72432"
      unitRef="usd">949</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72433"
      unitRef="usd">949</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72434"
      unitRef="usd">648</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72435"
      unitRef="usd">648</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72436"
      unitRef="usd">631</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72437"
      unitRef="usd">631</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72438"
      unitRef="usd">1883</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72439"
      unitRef="usd">1883</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72440"
      unitRef="usd">1808</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72441"
      unitRef="usd">1808</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72442"
      unitRef="usd">1760</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72443"
      unitRef="usd">1760</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72444"
      unitRef="usd">1267</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72445"
      unitRef="usd">1267</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72446"
      unitRef="usd">1237</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72447"
      unitRef="usd">1237</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72448"
      unitRef="usd">3563</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000084938_Cid_C000249704"
      decimals="0"
      id="ixv-72449"
      unitRef="usd">3563</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72450"
      unitRef="usd">3637</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000084938_Cid_C000249703"
      decimals="0"
      id="ixv-72451"
      unitRef="usd">3637</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72452"
      unitRef="usd">3706</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000084938_Cid_C000249705"
      decimals="0"
      id="ixv-72453"
      unitRef="usd">3706</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72454"
      unitRef="usd">2937</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000084938_Cid_C000249701"
      decimals="0"
      id="ixv-72455"
      unitRef="usd">2937</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72456"
      unitRef="usd">2878</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000084938_Cid_C000249700"
      decimals="0"
      id="ixv-72457"
      unitRef="usd">2878</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25199">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25204">
     
       
     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 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 
       
       
     %  
      
       
     of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      decimals="4"
      id="ixv-72458"
      unitRef="pure">0.59</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25222">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25227">
     
       
      
      Normally investing at least 80% of assets in equity securities and equity related derivative instruments. 
      
     Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. 
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      Investing both long and short in equities, both directly and indirectly through the use of derivatives, such as, contracts for difference (CFD), futures, options, and swap agreements, and/or a combination of the above. 
      Investing in domestic and foreign issuers, including emerging markets, that are generally denominated in the local currency of the issuer. Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low-to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics. 
      Utilizing forward foreign currency exchange contracts for hedging purposes.  
      Utilizing a market neutral strategy that seeks to produce returns that have a low correlation to the returns of the developed and emerging equity markets in which the fund invests, with no bias towards general stock market risk (beta), style, country or sector. 
      Using a disciplined portfolio construction process to select investments by employing both fundamental and quantitative analysis, taking long positions in securities that are believed to be undervalued and shorting a portion of the portfolio believed to be overvalued. 
      Investing in U.S. Government securities, short-term investment funds, cash, and cash equivalents for investment purposes and to maintain collateral to cover derivatives positions. 
      Using long and short derivatives for hedging, efficient portfolio management and investment purposes. 
      Lending portfolio securities to earn income for the fund. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_ContractsForDifferenceCfdRiskMember"
      id="ixv-25258">
     
       
      
      Contracts for Difference (CFD) Risk. 
      
     The fund may invest in Contracts for Difference (CFD), an OTC derivative total return swap transaction where the underlying reference asset will be a single equity stock or financial index. The fund could experience losses if the underlying asset or reference does not perform as anticipated. The fund may only close out a swap with its particular counterparty and may only transfer a position with the consent of that counterparty. Short CFD transactions have the potential for unlimited losses, regardless of the size of the initial investment. CFD agreements may be used to obtain exposure to a security or market without owning or taking physical custody of such security or investing directly in such market. CFD exposure may effectively add leverage to the fund's portfolio because, in addition to its total net assets, the fund would be subject to investment exposure on the notional amount of the swap. CFDs are subject to the risk that a counterparty will default on its payment obligations to the fund. CFD agreements also bear the risk that the fund will not be able to meet its obligation to the counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_FuturesContractRiskMember"
      id="ixv-25267">
     
       
      
      Futures Contract Risk. 
      
     The fund may invest in bond, currency, equity, index, and interest rate futures contracts. Certain futures contract markets are highly volatile, the use of futures may increase the volatility of the fund's net asset value per share (NAV), and futures contracts may be illiquid or less liquid than the underlying reference. Futures are traded on exchanges that may limit fluctuations in futures contract prices by imposing a maximum permissible daily price movement. The fund may be disadvantaged if it is prohibited from executing a trade outside the daily permissible price movement. Positions in futures contracts may be closed out only on the exchange on which they were entered into or through a linked exchange, and no secondary market exists for such contracts. Futures positions are marked to market each day and variation margin payment must be paid to or by the fund. Because of the low margin deposits normally required in futures trading, it is possible that the fund may employ a high degree of leverage in the portfolio. For certain types of futures contracts, losses are theoretically unlimited. Moreover, futures contracts executed (if any) on foreign exchanges may not provide the same protection as U.S. exchanges. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_ShortSalesAndLeverageRiskMember"
      id="ixv-25276">
     
       
      
      Short Sales and Leverage Risk. 
      
     Short sales pose more risk than long positions. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Regulatory bans on certain short selling activities may prevent a fund from fully implementing its strategy. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of derivative instruments may result in losses. The value of derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-25285">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-25294">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_GeographicExposureToEuropeMember"
      id="ixv-25309">
     
       
      
      Geographic Exposure to Europe. 
      
     Because the fund invests a meaningful portion of its assets in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_ForeignCurrencyTransactionsMember"
      id="ixv-25318">
     
       
      
      Foreign Currency Transactions. 
      
     The fund may enter into forward foreign currency exchange contracts for hedging purposes. A forward foreign currency exchange contract, which involves an obligation to purchase or sell a specific currency at a future date at a price set at the time of the contract, reduces a fund's exposure to changes in the value of the currency it will deliver and increases its exposure to changes in the value of the currency it will receive for the duration of the contract. Foreign exchange rates can be extremely volatile and the degree of volatility of the market or in the direction of the market from that anticipated by the Adviser may result in losses to the fund. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-25327">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-25336">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_SwapsRiskMember"
      id="ixv-25345">
     
       
      
      Swaps Risk. 
      
     The fund may invest in excess return and total return swaps. Swaps may be difficult to value and may be illiquid. The fund could experience losses if the underlying asset or reference does not perform as anticipated. Certain swaps have the potential for unlimited losses, regardless of the size of the initial investment. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-25354">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-25362">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25369">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25374">
     
       
      
       The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.  
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus 
     . 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      institutional.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25380"> 
        
      The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.  
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25387"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25393"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25398">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25402">
     
       
      
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
      
       
    
   </oef:BarChartNarrativeTextBlock>
    <oef:BarChartDoesNotReflectSalesLoads
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25405"> 
        
      The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown. 
        
     </oef:BarChartDoesNotReflectSalesLoads>
    <oef:AnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_2025"
      decimals="INF"
      id="ixv-72459"
      unitRef="pure">0.1227</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25488">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      decimals="4"
      id="ixv-72460"
      unitRef="pure">0.0706</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25498">2025-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25503">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      decimals="4"
      id="ixv-72461"
      unitRef="pure">0.0070</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25513">2025-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25518">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25523">
     
       
      
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
      
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
      
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances.  
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableDoesReflectSalesLoads
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25526"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25531"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableOneClassOfAfterTaxShown
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25536"> 
        
      After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. 
        
     </oef:PerformanceTableOneClassOfAfterTaxShown>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25542"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).  
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000084938_contentCd_AEMN-PRO"
      id="ixv-25546"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249704_ReturnBeforeTaxes_01"
      id="ixv-25572">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72462"
      unitRef="pure">0.0582</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_A_RBT_loc"
      unitRef="pure">0.0139</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributions_01"
      id="ixv-25587">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-72464"
      unitRef="pure">0.0576</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_A_ATD_loc"
      unitRef="pure">0.0135</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-25600">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-72466"
      unitRef="pure">0.0348</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249704_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_A_ATDS_loc"
      unitRef="pure">0.0106</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249703_ReturnBeforeTaxes_01"
      id="ixv-25613">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249703_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72468"
      unitRef="pure">0.0806</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249703_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_B_RBT_loc"
      unitRef="pure">0.0273</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249705_ReturnBeforeTaxes_01"
      id="ixv-25626">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249705_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72470"
      unitRef="pure">0.1049</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249705_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_C_RBT_loc"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249701_ReturnBeforeTaxes_01"
      id="ixv-25639">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249701_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72472"
      unitRef="pure">0.1257</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249701_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_D_RBT_loc"
      unitRef="pure">0.0568</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Cid_C000249700_ReturnBeforeTaxes_01"
      id="ixv-25652">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249700_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-72474"
      unitRef="pure">0.1267</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Cid_C000249700_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAEMN-PROS000084938AAR_E_RBT_loc"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_AEMN-PRO_01"
      id="ixv-25664">
         Bloomberg U.S. 3-Month Treasury Bellwether Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_AEMN-PRO_01"
      decimals="4"
      id="ixv-72476"
      unitRef="pure">0.0423</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_LB057_contentCd_AEMN-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72477"
      unitRef="pure">0.0455</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_AEMN-PRO_01"
      id="ixv-25683">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_AEMN-PRO_01"
      decimals="4"
      id="ixv-72478"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000084938_Indexid_MS159_contentCd_AEMN-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-72479"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249704" id="ixv-25715">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249703" id="ixv-25728">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249705" id="ixv-25741">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249701" id="ixv-25754">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000084938_Cid_C000249700" id="ixv-25767">2024-06-25</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30603">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; SAI Merger Arbitrage Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30612">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30617">
     
       
     Fidelity&#xae; SAI Merger Arbitrage Fund seeks capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30622">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30628">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30638">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      decimals="0"
      id="ixv-72480"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30653">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="ixv-72481"
      unitRef="pure">0.0105</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="ixv-72482"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="ixv-72483"
      unitRef="pure">0.0013</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="ixv-72484"
      unitRef="pure">0.0118</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="footnoteS000091043FSM-PROAOE_AC000258438_FW"
      unitRef="pure">-0.0008</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="6"
      id="ixv-72486"
      unitRef="pure">0.0110</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30729">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30738">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="0"
      id="ixv-72487"
      unitRef="usd">112</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="0"
      id="ixv-72488"
      unitRef="usd">364</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="0"
      id="ixv-72489"
      unitRef="usd">639</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000091043_Cid_C000258438"
      decimals="0"
      id="ixv-72490"
      unitRef="usd">1422</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30796">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30801">
     
       
     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 operating expenses or in the example, affect the fund's performance. For the period from June 17, 2025 to January 31, 2026, the fund's portfolio turnover rate was 
       
     
       
       110 
       
       
     % (annualized) of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      decimals="4"
      id="ixv-72491"
      unitRef="pure">1.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30810">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30815">
     
       
      
       
        Employing a merger arbitrage strategy that seeks to generate returns from discrepancies in asset pricing before and after merger or reorganization events. 
       
        Executing the fund's  
        merger arbitrage strategy through investments in equity securities and equity related derivative instruments, including special purpose acquisition vehicles ("SPACs"), of companies that are or may be involved in publicly announced or reported merger or re-organization events (including pre-definitive and definitive takeovers, buyouts, liquidations, corporate simplifications, spin offs, and other similar corporate transactions and reorganizations), including stock-for-stock, cash, and mixed consideration mergers and acquisitions ("a Merger Transaction"), or companies that the Adviser believes may be involved in Merger Transactions. 
      Utilizing other types of securities such as debt securities (including unrated debt securities and lower-quality debt securities of less than investment grade-quality, also referred to as high yield debt securities or junk bonds), convertible securities (including synthetic convertible securities), and options to employ merger arbitrage strategies. 
      Investing both long and short in equities directly and through the use of derivatives (options, swap agreements and other derivative instruments). 
      Investing in securities of domestic and foreign issuers. 
      Using fundamental analysis of factors such as each issuer's financial condition, industry position, likelihood of merger completion, timeline to completion as well as market and economic conditions to select investments. 
      Engaging in transactions that may have a leveraging effect on the fund, including: directional (long and short) investments in derivatives - such as swaps, forward contracts, futures, and options - to seek to hedge risks such as event completion and time-to-close event risk; for efficient portfolio management; or to enhance the returns of the fund. 
      The Adviser may invest in U.S. Government securities, short-term investment funds, ETFs, other fixed income instruments, cash, and cash equivalents for investment purposes and to maintain collateral to cover derivatives positions. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_MergerArbitrageStrategyMember"
      id="ixv-30843">
     
       
      
      Merger Arbitrage Strategy. 
      
     Merger arbitrage involves investing in equity securities and equity-related derivative instruments of companies that are or may be involved in a Merger Transaction. If the proposed merger appears likely not to be consummated, is delayed, or fails to be completed, the market price of the target company will usually decline sharply, resulting in loss. Every Merger Transaction is subject to unique risks, including the risk of the Merger Transaction failing as a result of timing risk, regulatory risk, deal financing risk, shareholder approval risk, or for other reasons. In addition, the relationship between the securities in which investment positions are taken may change in an adverse or unanticipated manner. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_ShortSalesAndLeverageRiskMember"
      id="ixv-30852">
     
       
      
      Short Sales and Leverage Risk. 
      
     Short sales pose more risk than long positions. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Regulatory bans on certain short selling activities may prevent a fund from fully implementing its strategy. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of futures, forwards, options, swaps, and other derivative instruments may result in losses. The value of these derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized&#160;activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_InvestingInExchangeTradedFundsEtfsAndEtnsMember"
      id="ixv-30863">
     
       
      
      Investing in Exchange Traded Funds (ETFs) and ETNs. 
      
     ETFs and ETNs may trade in the secondary market at prices below the value of their underlying portfolios and may not be liquid. ETFs that track an index are subject to tracking error and may be unable to sell poorly performing assets that are included in their index or other benchmark.&#160; ETNs are subject to the risks associated with debt securities, including counterparty risk of the issuer. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-30874">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-30883">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_ForeignExposureMember"
      id="ixv-30892">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-30901">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     A decline in the credit quality of an issuer or a provider of credit support (such as guarantees) or a maturity-shortening structure (such as demand and put features) for a security can cause the price of a security to decrease. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-30916">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_OptionsRiskMember"
      id="ixv-30925">
     
       
      
      Options Risk. 
      
     The fund may purchase or write (i.e., sell) put and call options. Under certain circumstances, the fund may be required to buy or sell the underlying reference at a disadvantageous price, resulting in a loss. Options may involve economic leverage, which could result in greater volatility in price movement. Certain transaction costs associated with purchasing and writing options may impact the fund's returns. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_SpecialPurposeAcquisitionCompaniesRiskSpacRiskMember"
      id="ixv-30934">
     
       
      
      Special Purpose Acquisition Companies Risk (SPAC Risk). 
      
     Because SPACs do not have an operating history or ongoing business other than seeking acquisitions, the value of their securities is particularly dependent on the ability of the SPAC's management to identify and complete a profitable acquisition. Some SPACs may pursue acquisitions only within certain industries or regions, which may increase the volatility of their prices. An investment in a SPAC is subject to a variety of risks, including that (i) an attractive acquisition or merger target may not be identified at all and the SPAC will be required to return any remaining monies to shareholders; (ii) an acquisition or merger once effected may prove unsuccessful and an investment in the SPAC may lose value; (iii) the values of investments in SPACs may be highly volatile and may depreciate significantly over time; (iv) no or only a thinly traded market for shares of or interests in a SPAC may develop, leaving a fund unable to sell its interest in a SPAC or to sell its interest only at a price below what the fund believes is the SPAC interest's intrinsic value; (v) any proposed merger or acquisition may be unable to obtain the requisite approval, if any, of shareholders; (vi) an investment in a SPAC may be diluted by additional later offerings of interests in the SPAC or by other investors exercising existing rights to purchase shares of the SPAC; (vii) the warrants or other rights with respect to the SPAC held by a fund may expire worthless or may be repurchased or retired by the SPAC at an unfavorable price; (viii) a fund may be delayed in receiving any redemption or liquidation proceeds from a SPAC to which it is entitled; and (ix) a significant portion of the monies raised by the SPAC for the purpose of identifying and effecting an acquisition or merger may be expended during the search for a target transaction. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_SwapsRiskMember"
      id="ixv-30943">
     
       
      
      Swaps Risk. 
      
     The fund may invest in excess return and total return swaps. Swaps may be difficult to value and may be illiquid. The fund could experience losses if the underlying asset or reference does not perform as anticipated. Certain swaps have the potential for unlimited losses, regardless of the size of the initial investment. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_InvestingInOtherFundsMember"
      id="ixv-30952">
     
       
      
      Investing in Other Funds. 
      
     Regulatory restrictions may limit the amount that one fund can invest in another, which means that the fund's manager may not be able to invest as much as it wants to in some other funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives.  
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_HighPortfolioTurnoverMember"
      id="ixv-30961">
     
       
      
       
        High Portfolio Turnover. 
      
     High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-30972">
     
       
     In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-30977">
     
       
     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 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-30985">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30992">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-30997">
     
       
      
        
      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
      
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000091043_contentCd_FSM-PRO"
      id="ixv-31000"> 
        
      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
     </oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32114">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; SAI Managed Futures Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32123">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32128">
     
       
     Fidelity&#xae; SAI Managed Futures Fund seeks capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32133">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32139">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32149">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      decimals="0"
      id="ixv-72492"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32164">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="ixv-72493"
      unitRef="pure">0.0100</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="ixv-72494"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="ixv-72495"
      unitRef="pure">0.0018</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="ixv-72496"
      unitRef="pure">0.0118</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="footnoteS000091042SFF-PROAOE_AC000258437_FW"
      unitRef="pure">-0.0013</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="6"
      id="ixv-72498"
      unitRef="pure">0.0105</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32240">2027-05-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32249">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="0"
      id="ixv-72499"
      unitRef="usd">107</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="0"
      id="ixv-72500"
      unitRef="usd">357</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="0"
      id="ixv-72501"
      unitRef="usd">632</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000091042_Cid_C000258437"
      decimals="0"
      id="ixv-72502"
      unitRef="usd">1416</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32307">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32312">
     
       
     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 operating expenses or in the example, affect the fund's performance. For the period from June 17, 2025 to January 31, 2026, the fund's portfolio turnover rate was 
       
     
       
       0 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      decimals="4"
      id="ixv-72503"
      unitRef="pure">0</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32321">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO"
      id="ixv-32326">
     
       
      
       
        Seeking to achieve its investment objective by pursuing a strategy intended to capture the persistence of price trends (up and/or down) observed across equity, fixed income, currency and commodity markets. The fund's investment strategy utilizes a combination of equity, fixed income, currency and commodity derivatives, as well as certain direct investments, to provide exposure to these markets and price trends. Trend following strategies attempt to capture trends in price movements in the markets they allocate to, generally taking long positions when prices move upwards, and taking short positions when they move downwards. 
      The Adviser may also utilize non-trend factor strategies, which focus on quantitative analysis of fundamental, non-price data (e.g., carry, volatility) to achieve the fund's investment objective. 
      Executing the fund's strategy through investments in derivative instruments that may have a leveraging effect on the fund, including futures (such as equity index futures, commodity futures, and currency futures), options on futures, options, swaps (including excess return swaps and total return swaps) and other derivative instruments. The fund may have long/short exposure via these instruments. In addition to creating and/or adjusting the fund's investment exposure, the fund's strategy may also be used to enhance total return, to hedge risks, to manage certain investment risk, and/or to manage volatility. 
      Employing various proprietary quantitative measures and qualitative techniques to evaluate price trends and non-trend factors across the asset classes in which the fund invests. The fund's quantitative measures are developed and maintained by the Adviser and are subject to change over time without notice in the Adviser's discretion. The Adviser retains discretion over the target asset allocations, which may include positions that differ from the target allocations indicated by the quantitative measures.  
      Investing up to 25% of assets in Fidelity SAI Managed Futures Cayman Ltd., a wholly-owned subsidiary organized under the laws of the Cayman Islands that invests in commodity-linked derivatives and related collateral (cash or cash equivalent investments, short-term investment funds and/or U.S. Government securities), commodity-related exchange-traded funds (ETFs), and commodity-related exchange-traded notes (ETNs). 
      Investing a significant portion of the fund's assets in U.S. Government securities, short-term investment funds, cash, and cash equivalents for investment purposes and to maintain collateral to cover derivatives positions. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_ShortSalesAndLeverageRiskMember"
      id="ixv-32345">
     
       
      
      Short Sales and Leverage Risk. 
      
     Short sales pose more risk than long positions. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Regulatory bans on certain short selling activities may prevent a fund from fully implementing its strategy. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. The fund's use of futures, forward contracts, options, swaps, and other derivative instruments may result in losses. The value of these derivative instruments may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments and may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of underlying instruments may produce disproportionate losses to the fund. The use of derivatives is a highly specialized&#160;activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments. Moreover, a relatively small price movement in a derivative contract may result in substantial losses to the fund, exceeding the amount of the margin paid. The use of derivatives can increase the fund's risk exposure to underlying assets and their attendant risks, while also exposing the fund to the risk of mispricing or other improper valuation and the risk that changes in the value of a derivative may not correlate as anticipated with the underlying asset, rate, index or overall securities markets, thereby reducing their effectiveness. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-32356">
     
       
      
      Stock Market Volatility. 
      
     Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-32365">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_SubsidiaryRiskMember"
      id="ixv-32374">
     
       
      
      Subsidiary Risk. 
      
     Investment in Fidelity SAI Managed Futures Fund Cayman Ltd, an unregistered subsidiary, is not subject to the investor protections of the Investment Company Act of 1940 (1940 Act) and is subject to the risks associated with investing in derivatives and commodity-linked investing in general. Changes in tax and other laws could negatively affect investments in the subsidiary. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-32383">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_USGovernmentObligationsRiskMember"
      id="ixv-32394">
     
       
      
      U.S. Government Obligations Risk. 
      
     Certain securities in which the fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-32403">
     
       
      
      Quantitative Investing. 
      
     Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. 
     In making investment allocation decisions, the Adviser utilizes quantitative models that may be proprietary or developed by third parties. These models are used by the Adviser to determine the fund's target asset allocation. The fund's investment models used in making investment allocation decisions may not adequately consider certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data, any of which may result in a decline in the value of your investment. There can be no assurance that the models used by the Adviser will remain viable, due to various factors, which may include the quality of the data input into the models and the assumptions underlying such models, which to varying degrees involve the exercise of judgment, as well as the possibility of errors in constructing or using the model.  
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_CommodityLinkedInvestingMember"
      id="ixv-32414">
     
       
      
      Commodity-Linked Investing. 
      
     The value of commodities and commodity-linked investments may be affected by the performance of the overall commodities markets as well as weather, political, tax, and other regulatory and market developments. Commodity-linked investments may be more volatile and less liquid than the underlying commodity, instruments, or measures. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_CommodityFuturesMember"
      id="ixv-32423">
     
       
      
      Commodity Futures. 
      
     Investments in commodity futures contracts are also subject to the risk of the failure of any of the exchanges on which the fund's positions trade or of its clearinghouses or counterparties. In addition, certain commodity exchanges limit fluctuations in certain futures contract prices during a single day by regulations referred to as "daily price fluctuation limits" or "daily limits." Under such daily limits, during a single trading day no trades may be executed at prices beyond the daily limit. If triggered, these limits could prevent the fund from liquidating unfavorable positions and subject the fund to losses or prevent it from entering into desired trades during the particular trading day. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_SwapsRiskMember"
      id="ixv-32432">
     
       
      
      Swaps Risk. 
      
     The fund may invest in excess return and total return swaps. Swaps may be difficult to value and may be illiquid. The fund could experience losses if the underlying asset or reference does not perform as anticipated. Certain swaps have the potential for unlimited losses, regardless of the size of the initial investment. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000091042_contentCd_SFF-PRO_RiskMember_InvestingInOtherFundsMember"
      id="ixv-32441">
     
       
      
      Investing in Other Funds. 
      
     Regulatory restrictions may limit the amount that one fund can invest in another, which means that the fund's manager may not be able to invest as much as it wants to in some other funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives.  
      
       
    
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     In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. 
       
    
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     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 
       
     . 
       
    
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     &#160; 
       
     You could lose money by investing in the fund. 
       
    
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     Performance 
       
    
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      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
      
    
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      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
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        <link:footnote id="footnoteS000077302FHE-PROAOE_A" xlink:label="footnoteS000077302FHE-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 0.55% (the Expense Cap). If at any time during the current fiscal year expenses for the class of shares of the fund fall below the Expense Cap, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">. FDS may not terminate this arrangement before the expiration date without the approval of the Board of Trustees and may extend it in its discretion after that date.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteFHE-PROS000077302AAR_A" xlink:label="footnoteFHE-PROS000077302AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteAFHE-PROS000077302SHF_A" xlink:label="footnoteAFHE-PROS000077302SHF_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302SHF_AC000237633"
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          xlink:from="footnoteAFHE-PROS000077302SHF_AC000237633"
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302SHF_BC000237632"
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        <link:footnote id="footnoteAFHE-PROS000077302SHF_B" xlink:label="footnoteAFHE-PROS000077302SHF_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">On Class C shares redeemed less than one year after purchase.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000077302AFHE-PROAOE_AC000237634_FW"
          xlink:label="footnoteS000077302AFHE-PROAOE_AC000237634_FW"
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        <link:footnote id="footnoteS000077302AFHE-PROAOE_A" xlink:label="footnoteS000077302AFHE-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse Class A, Class M, Class C, Class I, and Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of their respective average net assets, exceed 0.80%, 1.05%, 1.55%, 0.55%, and 0.50% (the Expense Caps). If at any time during the current fiscal year expenses for Class A, Class M, Class C, Class I, or Class Z of the fund fall below the Expense Caps, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Caps. These arrangements will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">. FDS may not terminate these arrangements before the expiration date without the approval of the Board of Trustees and may extend them in its discretion after that date.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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          xlink:href="#footnoteS000077302AFHE-PROAOE_AC000237633_FW"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_A_RBT_loc"
          xlink:label="footnoteAFHE-PROS000077302AAR_A_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAFHE-PROS000077302AAR_A" xlink:label="footnoteAFHE-PROS000077302AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAFHE-PROS000077302AAR_A_RBT_loc"
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          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_A_ATD_loc"
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          xlink:type="locator"/>
        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_A_ATDS_loc"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_B_RBT_loc"
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        <link:footnote id="footnoteAFHE-PROS000077302AAR_B" xlink:label="footnoteAFHE-PROS000077302AAR_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAFHE-PROS000077302AAR_B_RBT_loc"
          xlink:to="footnoteAFHE-PROS000077302AAR_B"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_C_RBT_loc"
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          xlink:type="locator"/>
        <link:footnote id="footnoteAFHE-PROS000077302AAR_C" xlink:label="footnoteAFHE-PROS000077302AAR_C" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">C</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
        <link:footnoteArc
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          xlink:from="footnoteAFHE-PROS000077302AAR_C_RBT_loc"
          xlink:to="footnoteAFHE-PROS000077302AAR_C"
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        <link:loc
          xlink:href="#footnoteAFHE-PROS000077302AAR_D_RBT_loc"
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          xlink:type="locator"/>
        <link:footnote id="footnoteAFHE-PROS000077302AAR_D" xlink:label="footnoteAFHE-PROS000077302AAR_D" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">D</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteAFHE-PROS000077302AAR_E" xlink:label="footnoteAFHE-PROS000077302AAR_E" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">E</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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          xlink:from="footnoteAFHE-PROS000077302AAR_E_RBT_loc"
          xlink:to="footnoteAFHE-PROS000077302AAR_E"
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        <link:loc
          xlink:href="#footnoteS000075414GMO-PROAOE_AC000234495_TE"
          xlink:label="footnoteS000075414GMO-PROAOE_AC000234495_TE"
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        <link:footnote id="footnoteS000075414GMO-PROAOE_A" xlink:label="footnoteS000075414GMO-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteS000075414GMO-PROAOE_B" xlink:label="footnoteS000075414GMO-PROAOE_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 0.60% (the Expense Cap). If at any time during the current fiscal year expenses for the class of shares of the fund fall below the Expense Cap, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">. FDS may not terminate this arrangement before the expiration date without the approval of the Board of Trustees and may extend it in its discretion after that date.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteGMO-PROS000075414AAR_A" xlink:label="footnoteGMO-PROS000075414AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 1, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteS000081303SCA-PROAOE_A" xlink:label="footnoteS000081303SCA-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses. </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the fund.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteS000081303SCA-PROAOE_B" xlink:label="footnoteS000081303SCA-PROAOE_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 1.45% (the Expense Cap). If at any time during the current fiscal year expenses for the fund fall below the Expense Cap, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">. FDS may not terminate this arrangement before the expiration date without the approval of the Board of Trustees and may extend it in its discretion after that date.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteSCA-PROS000081303AAR_A" xlink:label="footnoteSCA-PROS000081303AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">September 12, 2023</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteAGMO-PROS000075414SHF_A" xlink:label="footnoteAGMO-PROS000075414SHF_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:footnote id="footnoteAGMO-PROS000075414SHF_B" xlink:label="footnoteAGMO-PROS000075414SHF_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.67pt; vertical-align:super">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">On Class C shares redeemed less than one year after purchase.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000075414AGMO-PROAOE_AC000234496_TE"
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        <link:footnote id="footnoteS000075414AGMO-PROAOE_A" xlink:label="footnoteS000075414AGMO-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
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        <link:loc
          xlink:href="#footnoteS000075414AGMO-PROAOE_AC000234492_TW"
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        <link:footnoteArc
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        <link:loc
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000075414AGMO-PROAOE_AC000234494_TW"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000075414AGMO-PROAOE_BC000234496_FW"
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        <link:footnote id="footnoteS000075414AGMO-PROAOE_B" xlink:label="footnoteS000075414AGMO-PROAOE_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse Class A, Class M, Class C, Class I, and Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of their respective average net assets, exceed 0.85%, 1.10%, 1.60%, 0.60%, and 0.55% (the Expense Caps). If at any time during the current fiscal year expenses for Class A, Class M, Class C, Class I, or Class Z of the fund fall below the Expense Caps, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Caps. These arrangements will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
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        <link:loc
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        <link:footnote id="footnoteAGMO-PROS000075414AAR_A" xlink:label="footnoteAGMO-PROS000075414AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">July 7, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
        <link:footnoteArc
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          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGMO-PROS000075414AAR_A_ATD_loc"
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          xlink:type="locator"/>
        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteAGMO-PROS000075414AAR_A_ATDS_loc"
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          xlink:href="#footnoteAGMO-PROS000075414AAR_B_RBT_loc"
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        <link:footnoteArc
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          xlink:from="footnoteAGMO-PROS000075414AAR_B_RBT_loc"
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        <link:loc
          xlink:href="#footnoteAGMO-PROS000075414AAR_C_RBT_loc"
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        <link:footnote id="footnoteAGMO-PROS000075414AAR_C" xlink:label="footnoteAGMO-PROS000075414AAR_C" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">C</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">July 7, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteAGMO-PROS000075414AAR_D_RBT_loc"
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        <link:footnote id="footnoteAGMO-PROS000075414AAR_D" xlink:label="footnoteAGMO-PROS000075414AAR_D" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">D</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">July 7, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteAGMO-PROS000075414AAR_E" xlink:label="footnoteAGMO-PROS000075414AAR_E" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">E</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">July 7, 2022</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000084938EMN-PROAOE_AC000249702_TE"
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        <link:footnote id="footnoteS000084938EMN-PROAOE_A" xlink:label="footnoteS000084938EMN-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitation of the class.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000084938EMN-PROAOE_BC000249702_FW"
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        <link:footnote id="footnoteS000084938EMN-PROAOE_B" xlink:label="footnoteS000084938EMN-PROAOE_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 1.10% (the Expense Cap). If at any time during the current fiscal year expenses for the class of shares of the fund fall below the Expense Cap, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
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        <link:loc
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        <link:footnote id="footnoteEMN-PROS000084938AAR_A" xlink:label="footnoteEMN-PROS000084938AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
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        <link:loc
          xlink:href="#footnoteAEMN-PROS000084938SHF_AC000249704"
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        <link:footnote id="footnoteAEMN-PROS000084938SHF_A" xlink:label="footnoteAEMN-PROS000084938SHF_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteS000084938AEMN-PROAOE_B" xlink:label="footnoteS000084938AEMN-PROAOE_B" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:4.5pt; vertical-align:3pt">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse Class A, Class M, Class C, Class I, and Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of their respective average net assets, exceed 1.35%, 1.60%, 2.10%, 1.10%, and 1.05% (the Expense Caps). If at any time during the current fiscal year expenses for Class A, Class M, Class C, Class I, or Class Z of the fund fall below the Expense Caps, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Caps. These arrangements will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">. FDS may not terminate these arrangements before the expiration date without the approval of the Board of Trustees and may extend them in its discretion after that date.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteAEMN-PROS000084938AAR_A" xlink:label="footnoteAEMN-PROS000084938AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">B</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">C</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteAEMN-PROS000084938AAR_D" xlink:label="footnoteAEMN-PROS000084938AAR_D" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">D</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteAEMN-PROS000084938AAR_E" xlink:label="footnoteAEMN-PROS000084938AAR_E" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">E</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">From </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">June 25, 2024</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000091043FSM-PROAOE_AC000258438_FW"
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        <link:footnote id="footnoteS000091043FSM-PROAOE_A" xlink:label="footnoteS000091043FSM-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:div style="padding:2px"><xhtml:span> </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
      </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:4.5pt; vertical-align:3pt; ">A</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Fidelity Diversifying Solutions LLC (FDS) has contractually agreed to reimburse the fund to the extent that total operating expenses (excluding interest, certain taxes, proxy and shareholder meeting expenses, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund's securities lending program, if applicable), as a percentage of its average net assets, exceed 1.10% (the Expense Cap). If at any time during the current fiscal year expenses for the fund fall below the Expense Cap, FDS reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">May 31, </xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
       </xhtml:span><xhtml:span
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