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    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-100602">2026-06-29</dei:DocumentPeriodEndDate>
    <dei:AmendmentFlag contextRef="Trust" id="ixv-100603">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="Trust" id="ixv-100604">0000225322</dei:EntityCentralIndexKey>
    <dei:EntityInvCompanyType contextRef="Trust" id="ixv-100605">N-1A</dei:EntityInvCompanyType>
    <dei:EntityRegistrantName contextRef="Trust" id="ixv-100606">Fidelity Summer Street Trust</dei:EntityRegistrantName>
    <oef:RiskReturnHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-217">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Women's Leadership Fund 
     /Fidelity&#xae; Women's Leadership Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-230">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-235">
     
       
     Fidelity&#xae; Women's Leadership Fund seeks long-term growth of capital. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-240">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-246">
     
       
     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_S000065255_contentCd_WLF-PRO" id="ixv-257">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000065255_contentCd_WLF-PRO"
      decimals="0"
      id="ixv-105056"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-272">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="6"
      id="footnoteS000065255WLF-PROAOE_AC000211260_MF"
      unitRef="pure">0.0056</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="6"
      id="ixv-105058"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="6"
      id="ixv-105059"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="6"
      id="ixv-105060"
      unitRef="pure">0.0067</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-331">
     
       
     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_S000065255_Cid_C000211260"
      decimals="0"
      id="ixv-105061"
      unitRef="usd">68</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="0"
      id="ixv-105062"
      unitRef="usd">214</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="0"
      id="ixv-105063"
      unitRef="usd">373</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211260"
      decimals="0"
      id="ixv-105064"
      unitRef="usd">835</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-388">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-393">
     
       
     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 
       
     
       
       
       25 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000065255_contentCd_WLF-PRO"
      decimals="4"
      id="ixv-105065"
      unitRef="pure">0.25</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-403">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-408">
     
       
     Normally investing at least 80% of assets in equity securities of companies that prioritize and advance women's leadership and development. Such companies include those that (i) include a woman as a member of the senior management team, (ii) are governed by a board for which women represent at least one third of all directors, or (iii) in Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) opinion, have adopted policies designed to attract, retain and promote women. 
     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 securities of domestic and foreign issuers. 
      Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_WLF-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-426">
     
       
      
      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_S000065255_contentCd_WLF-PRO_RiskMember_SustainabilityRiskMember"
      id="ixv-435">
     
       
      
      Sustainability Risk. 
      
     Application of Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) environmental, social and governance (ESG)  
       rating process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG  
       rating process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_WLF-PRO_RiskMember_ForeignExposureMember"
      id="ixv-452">
     
       
      
      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_S000065255_contentCd_WLF-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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_WLF-PRO_RiskMember_ManagementRiskMember"
      id="ixv-470">
     
       
      
      Management Risk. 
      
     The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies . 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_WLF-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-481">
     
       
     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_S000065255_contentCd_WLF-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-489">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-496">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-501">
     
       
     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_S000065255_contentCd_WLF-PRO" id="ixv-506"> 
        
      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_S000065255_contentCd_WLF-PRO" id="ixv-513"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-519"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-524">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2020"
      decimals="INF"
      id="ixv-105066"
      unitRef="pure">0.2530</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2021"
      decimals="INF"
      id="ixv-105067"
      unitRef="pure">0.1942</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2022"
      decimals="INF"
      id="ixv-105068"
      unitRef="pure">-0.1981</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2023"
      decimals="INF"
      id="ixv-105069"
      unitRef="pure">0.2112</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2024"
      decimals="INF"
      id="ixv-105070"
      unitRef="pure">0.1370</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_2025"
      decimals="INF"
      id="ixv-105071"
      unitRef="pure">0.1917</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-622">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000065255_contentCd_WLF-PRO"
      decimals="4"
      id="ixv-105072"
      unitRef="pure">0.2600</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-632">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-637">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000065255_contentCd_WLF-PRO"
      decimals="4"
      id="ixv-105073"
      unitRef="pure">-0.2125</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-648">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-653">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000065255_contentCd_WLF-PRO"
      decimals="4"
      id="ixv-105074"
      unitRef="pure">-0.0430</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-664">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-669">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000065255_contentCd_WLF-PRO" id="ixv-674">
     
       
      
        
      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_S000065255_contentCd_WLF-PRO" id="ixv-677"> 
        
      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_S000065255_contentCd_WLF-PRO" id="ixv-684"> 
        
      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_S000065255_contentCd_WLF-PRO" id="ixv-689"> 
        
      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_S000065255_Cid_C000211260_ReturnBeforeTaxes_01"
      id="ixv-736">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105075"
      unitRef="pure">0.1917</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105076"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteWLF-PROS000065255AAR_A_RBT_loc"
      unitRef="pure">0.1220</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributions_01"
      id="ixv-752">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105078"
      unitRef="pure">0.1748</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105079"
      unitRef="pure">0.0883</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteWLF-PROS000065255AAR_A_ATD_loc"
      unitRef="pure">0.1170</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-768">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105081"
      unitRef="pure">0.1237</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105082"
      unitRef="pure">0.0738</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211260_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteWLF-PROS000065255AAR_A_ATDS_loc"
      unitRef="pure">0.0983</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_WLF-PRO_01"
      id="ixv-785">
         MSCI USA Women's Leadership Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_WLF-PRO_01"
      decimals="4"
      id="ixv-105084"
      unitRef="pure">0.0688</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_WLF-PRO_05"
      decimals="4"
      id="ixv-105085"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_WLF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105086"
      unitRef="pure">0.0900</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_WLF-PRO_01"
      id="ixv-810">
         Russell 3000&#xae; Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_WLF-PRO_01"
      decimals="4"
      id="ixv-105087"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_WLF-PRO_05"
      decimals="4"
      id="ixv-105088"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_WLF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105089"
      unitRef="pure">0.1469</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211260" id="ixv-851">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2951">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Women's Leadership Fund 
     /Fidelity Advisor&#xae; Women's Leadership Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2966">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2971">
     
       
     Fidelity&#xae; Women's Leadership Fund seeks long-term growth of capital. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2976">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2982">
     
       
     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 34 of the prospectus 
        
      
       
     and in 
       
     the sales charge 
       
     waiver appendix to 
       
     the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-2988"> 
        
      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 34 of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      decimals="0"
      id="ixv-105090"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3009">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="4"
      id="ixv-105091"
      unitRef="pure">0.0575</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="4"
      id="ixv-105092"
      unitRef="pure">0.0350</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="4"
      id="ixv-105093"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="4"
      id="ixv-105094"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="4"
      id="ixv-105095"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="4"
      id="footnoteAWLF-PROS000065255SHF_AC000211262"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="4"
      id="footnoteAWLF-PROS000065255SHF_AC000211261"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="4"
      id="footnoteAWLF-PROS000065255SHF_BC000211263"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="4"
      id="ixv-105099"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="4"
      id="ixv-105100"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3115"> 
        
      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_S000065255_Cid_C000211263" id="ixv-3125"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3130">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="6"
      id="footnoteS000065255AWLF-PROAOE_AC000211262_MF"
      unitRef="pure">0.0061</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="6"
      id="footnoteS000065255AWLF-PROAOE_AC000211261_MF"
      unitRef="pure">0.0061</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="6"
      id="footnoteS000065255AWLF-PROAOE_AC000211263_MF"
      unitRef="pure">0.0061</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="6"
      id="footnoteS000065255AWLF-PROAOE_AC000211259_MF"
      unitRef="pure">0.0058</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="6"
      id="footnoteS000065255AWLF-PROAOE_AC000211258_MF"
      unitRef="pure">0.0046</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="6"
      id="ixv-105106"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="6"
      id="ixv-105107"
      unitRef="pure">0.0050</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="6"
      id="ixv-105108"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="6"
      id="ixv-105109"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="6"
      id="ixv-105110"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="6"
      id="ixv-105111"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="6"
      id="ixv-105112"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="6"
      id="ixv-105113"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="6"
      id="ixv-105114"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="6"
      id="ixv-105115"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="6"
      id="ixv-105116"
      unitRef="pure">0.0097</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="6"
      id="ixv-105117"
      unitRef="pure">0.0122</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="6"
      id="ixv-105118"
      unitRef="pure">0.0172</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="6"
      id="ixv-105119"
      unitRef="pure">0.0069</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="6"
      id="ixv-105120"
      unitRef="pure">0.0057</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3305">
     
       
     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_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105121"
      unitRef="usd">668</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105122"
      unitRef="usd">668</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105123"
      unitRef="usd">470</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105124"
      unitRef="usd">470</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105125"
      unitRef="usd">275</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105126"
      unitRef="usd">175</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105127"
      unitRef="usd">70</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105128"
      unitRef="usd">70</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105129"
      unitRef="usd">58</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105130"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105131"
      unitRef="usd">866</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105132"
      unitRef="usd">866</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105133"
      unitRef="usd">724</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105134"
      unitRef="usd">724</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105135"
      unitRef="usd">542</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105136"
      unitRef="usd">542</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105137"
      unitRef="usd">221</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105138"
      unitRef="usd">221</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105139"
      unitRef="usd">183</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105140"
      unitRef="usd">183</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105141"
      unitRef="usd">1080</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105142"
      unitRef="usd">1080</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105143"
      unitRef="usd">997</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105144"
      unitRef="usd">997</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105145"
      unitRef="usd">933</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105146"
      unitRef="usd">933</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105147"
      unitRef="usd">384</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105148"
      unitRef="usd">384</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105149"
      unitRef="usd">318</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105150"
      unitRef="usd">318</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105151"
      unitRef="usd">1696</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000065255_Cid_C000211262"
      decimals="0"
      id="ixv-105152"
      unitRef="usd">1696</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105153"
      unitRef="usd">1776</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000065255_Cid_C000211261"
      decimals="0"
      id="ixv-105154"
      unitRef="usd">1776</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105155"
      unitRef="usd">1831</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000065255_Cid_C000211263"
      decimals="0"
      id="ixv-105156"
      unitRef="usd">1831</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105157"
      unitRef="usd">859</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000065255_Cid_C000211259"
      decimals="0"
      id="ixv-105158"
      unitRef="usd">859</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105159"
      unitRef="usd">714</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000065255_Cid_C000211258"
      decimals="0"
      id="ixv-105160"
      unitRef="usd">714</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3613">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3618">
     
       
     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 
       
     
       
       
       25 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      decimals="4"
      id="ixv-105161"
      unitRef="pure">0.25</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3628">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3633">
     
       
     Normally investing at least 80% of assets in equity securities of companies that prioritize and advance women's leadership and development. Such companies include those that (i) include a woman as a member of the senior management team, (ii) are governed by a board for which women represent at least one third of all directors, or (iii) in Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) opinion, have adopted policies designed to attract, retain and promote women. 
     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 securities of domestic and foreign issuers. 
      Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-3651">
     
       
      
      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_S000065255_contentCd_AWLF-PRO_RiskMember_SustainabilityRiskMember"
      id="ixv-3660">
     
       
      
      Sustainability Risk. 
      
     Application of Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) environmental, social and governance (ESG)  
       rating process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG  
       rating process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO_RiskMember_ForeignExposureMember"
      id="ixv-3677">
     
       
      
      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_S000065255_contentCd_AWLF-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-3686">
     
       
      
      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_S000065255_contentCd_AWLF-PRO_RiskMember_ManagementRiskMember"
      id="ixv-3695">
     
       
      
      Management Risk. 
      
     The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies . 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-3706">
     
       
     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_S000065255_contentCd_AWLF-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-3714">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3721">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3726">
     
       
     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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3731"> 
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3738"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3744"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3749">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3753">
     
       
      
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3756"> 
        
      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_S000065255_Cid_C000211262_2020"
      decimals="INF"
      id="ixv-105162"
      unitRef="pure">0.2502</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_2021"
      decimals="INF"
      id="ixv-105163"
      unitRef="pure">0.1922</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_2022"
      decimals="INF"
      id="ixv-105164"
      unitRef="pure">-0.2001</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_2023"
      decimals="INF"
      id="ixv-105165"
      unitRef="pure">0.2082</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_2024"
      decimals="INF"
      id="ixv-105166"
      unitRef="pure">0.1341</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_2025"
      decimals="INF"
      id="ixv-105167"
      unitRef="pure">0.1880</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3855">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      decimals="4"
      id="ixv-105168"
      unitRef="pure">0.2582</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3865">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3870">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      decimals="4"
      id="ixv-105169"
      unitRef="pure">-0.2126</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3881">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3886">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      decimals="4"
      id="ixv-105170"
      unitRef="pure">-0.0438</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3897">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3902">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3907">
     
       
      
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3910"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000065255_contentCd_AWLF-PRO"
      id="ixv-3915"> 
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3920"> 
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3926"> 
        
      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_S000065255_contentCd_AWLF-PRO"
      id="ixv-3930"> 
        
      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_S000065255_Cid_C000211262_ReturnBeforeTaxes_01"
      id="ixv-3961">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105171"
      unitRef="pure">0.1197</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105172"
      unitRef="pure">0.0791</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_A_RBT_loc"
      unitRef="pure">0.1094</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributions_01"
      id="ixv-3979">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105174"
      unitRef="pure">0.1044</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105175"
      unitRef="pure">0.0734</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_A_ATD_loc"
      unitRef="pure">0.1049</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-3995">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105177"
      unitRef="pure">0.0800</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105178"
      unitRef="pure">0.0613</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211262_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_A_ATDS_loc"
      unitRef="pure">0.0877</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211261_ReturnBeforeTaxes_01"
      id="ixv-4011">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211261_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105180"
      unitRef="pure">0.1439</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211261_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105181"
      unitRef="pure">0.0814</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211261_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_B_RBT_loc"
      unitRef="pure">0.1104</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211263_ReturnBeforeTaxes_01"
      id="ixv-4027">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211263_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105183"
      unitRef="pure">0.1698</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211263_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105184"
      unitRef="pure">0.0839</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211263_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_C_RBT_loc"
      unitRef="pure">0.1109</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211259_ReturnBeforeTaxes_01"
      id="ixv-4043">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211259_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105186"
      unitRef="pure">0.1918</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211259_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105187"
      unitRef="pure">0.0952</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211259_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_D_RBT_loc"
      unitRef="pure">0.1224</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Cid_C000211258_ReturnBeforeTaxes_01"
      id="ixv-4059">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211258_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105189"
      unitRef="pure">0.1932</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211258_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105190"
      unitRef="pure">0.0965</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Cid_C000211258_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAWLF-PROS000065255AAR_E_RBT_loc"
      unitRef="pure">0.1238</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_AWLF-PRO_01"
      id="ixv-4074">
         MSCI USA Women's Leadership Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_AWLF-PRO_01"
      decimals="4"
      id="ixv-105192"
      unitRef="pure">0.0688</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_AWLF-PRO_05"
      decimals="4"
      id="ixv-105193"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_IXYIK_contentCd_AWLF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105194"
      unitRef="pure">0.0900</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_AWLF-PRO_01"
      id="ixv-4099">
         Russell 3000&#xae; Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_AWLF-PRO_01"
      decimals="4"
      id="ixv-105195"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_AWLF-PRO_05"
      decimals="4"
      id="ixv-105196"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000065255_Indexid_RS003_contentCd_AWLF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105197"
      unitRef="pure">0.1469</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211262" id="ixv-4140">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211261" id="ixv-4153">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211263" id="ixv-4166">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211259" id="ixv-4179">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000065255_Cid_C000211258" id="ixv-4192">2019-05-01</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10841">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Short Duration High Income Fund 
     /Fidelity&#xae; Short Duration High Income Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10854">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10859">
     
       
     Fidelity&#xae; Short Duration High Income Fund seeks a high level of current income. The fund may also seek capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10864">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10870">
     
       
     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_S000042758_contentCd_SDH-PRO"
      id="ixv-10881">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      decimals="0"
      id="ixv-105198"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10896">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="6"
      id="ixv-105199"
      unitRef="pure">0.0065</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="6"
      id="ixv-105200"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="6"
      id="ixv-105201"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="6"
      id="ixv-105202"
      unitRef="pure">0.0072</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-10943">
     
       
     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_S000042758_Cid_C000132244"
      decimals="0"
      id="ixv-105203"
      unitRef="usd">74</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="0"
      id="ixv-105204"
      unitRef="usd">230</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="0"
      id="ixv-105205"
      unitRef="usd">401</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000132244"
      decimals="0"
      id="ixv-105206"
      unitRef="usd">894</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11000">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11005">
     
       
     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 
       
     
       
       88 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      decimals="4"
      id="ixv-105207"
      unitRef="pure">0.88</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11014">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11019">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Normally investing primarily in securities rated BB or B by Standard &amp; Poor's (S&amp;P), Ba or B by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management &amp; Research Company (FMR) to be of comparable quality. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Normally maintaining a duration of three years or less. 
      Investing in floating rate loans, which are often lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds), and other floating rate securities. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-11059">
     
       
      
      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_S000042758_contentCd_SDH-PRO_RiskMember_FloatingRateLoansMember"
      id="ixv-11068">
     
       
      
      Floating Rate Loans. 
      
     A floating rate loan may not be fully collateralized which may cause the floating rate loan to decline significantly in value. Floating rate loans generally are subject to restrictions on resale. Floating rate loans sometimes trade infrequently in the secondary market. As a result, valuing a floating rate loan can be more difficult, and buying and selling a floating rate loan at an acceptable price can be more difficult or delayed, including extended trade settlement periods. Difficulty in selling a floating rate loan can result in a loss. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-11077">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-11086">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_PrepaymentMember"
      id="ixv-11095">
     
       
      
      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 and can limit the potential for gains when the credit quality of the issuer improves. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-11104">
     
       
      
      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), including floating rate loans, 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, including floating rate loans, 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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-11122">
     
       
     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_S000042758_contentCd_SDH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-11130">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11137">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11142">
     
       
     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, a hypothetical composite of market indexes, and an additional index over various periods of time. 
        
      
       
     The hypothetical composite of market indexes and additional index 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_S000042758_contentCd_SDH-PRO"
      id="ixv-11147"> 
        
      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, a hypothetical composite of market indexes, and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11154"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11160"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11165">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2016"
      decimals="INF"
      id="ixv-105208"
      unitRef="pure">0.1062</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2017"
      decimals="INF"
      id="ixv-105209"
      unitRef="pure">0.0495</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2018"
      decimals="INF"
      id="ixv-105210"
      unitRef="pure">-0.0127</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2019"
      decimals="INF"
      id="ixv-105211"
      unitRef="pure">0.0930</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2020"
      decimals="INF"
      id="ixv-105212"
      unitRef="pure">0.0396</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2021"
      decimals="INF"
      id="ixv-105213"
      unitRef="pure">0.0332</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2022"
      decimals="INF"
      id="ixv-105214"
      unitRef="pure">-0.0606</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2023"
      decimals="INF"
      id="ixv-105215"
      unitRef="pure">0.1026</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2024"
      decimals="INF"
      id="ixv-105216"
      unitRef="pure">0.0820</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_2025"
      decimals="INF"
      id="ixv-105217"
      unitRef="pure">0.0772</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11276">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      decimals="4"
      id="ixv-105218"
      unitRef="pure">0.0713</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11286">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11291">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      decimals="4"
      id="ixv-105219"
      unitRef="pure">-0.0850</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11302">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11307">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      decimals="4"
      id="ixv-105220"
      unitRef="pure">0.0039</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11317">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11322">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_SDH-PRO"
      id="ixv-11326">
     
       
      
        
      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_S000042758_contentCd_SDH-PRO"
      id="ixv-11329"> 
        
      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_S000042758_contentCd_SDH-PRO"
      id="ixv-11336"> 
        
      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_S000042758_contentCd_SDH-PRO"
      id="ixv-11341"> 
        
      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_S000042758_Cid_C000132244_ReturnBeforeTaxes_01"
      id="ixv-11386">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105221"
      unitRef="pure">0.0772</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105222"
      unitRef="pure">0.0452</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105223"
      unitRef="pure">0.0497</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributions_01"
      id="ixv-11401">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105224"
      unitRef="pure">0.0455</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105225"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105226"
      unitRef="pure">0.0292</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-11416">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105227"
      unitRef="pure">0.0451</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105228"
      unitRef="pure">0.0245</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132244_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105229"
      unitRef="pure">0.0292</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_SDH-PRO_01"
      id="ixv-11432">
         Fidelity Short Duration High Income Fund Composite Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_SDH-PRO_01"
      decimals="4"
      id="ixv-105230"
      unitRef="pure">0.0754</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_SDH-PRO_05"
      decimals="4"
      id="ixv-105231"
      unitRef="pure">0.0526</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_SDH-PRO_10"
      decimals="4"
      id="ixv-105232"
      unitRef="pure">0.0575</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_SDH-PRO_01"
      id="ixv-11457">
         ICE&#xae; BofA&#xae; 1-5 Year BB-B US Cash Pay High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_SDH-PRO_01"
      decimals="4"
      id="ixv-105233"
      unitRef="pure">0.0782</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_SDH-PRO_05"
      decimals="4"
      id="ixv-105234"
      unitRef="pure">0.0502</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_SDH-PRO_10"
      decimals="4"
      id="ixv-105235"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_SDH-PRO_01"
      id="ixv-11482">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_SDH-PRO_01"
      decimals="4"
      id="ixv-105236"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_SDH-PRO_05"
      decimals="4"
      id="ixv-105237"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_SDH-PRO_10"
      decimals="4"
      id="ixv-105238"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13573">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Short Duration High Income Fund 
     /Fidelity Advisor&#xae; Short Duration High Income Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13588">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13593">
     
       
     Fidelity&#xae; Short Duration High Income Fund seeks a high level of current income. The fund may also seek capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13598">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13604">
     
       
     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  
       
        
      36 
        
      of the prospectus 
        
      
       
     and in the sales charge 
       
     waiver appendix to the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13610"> 
        
      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  
       
        
      36 
        
      of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      decimals="0"
      id="ixv-105239"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13631">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="4"
      id="ixv-105240"
      unitRef="pure">0.0400</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="4"
      id="ixv-105241"
      unitRef="pure">0.0400</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="4"
      id="ixv-105242"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="4"
      id="ixv-105243"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="4"
      id="ixv-105244"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="4"
      id="footnoteASDH-PROS000042758SHF_AC000132246"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="4"
      id="footnoteASDH-PROS000042758SHF_AC000132247"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="4"
      id="footnoteASDH-PROS000042758SHF_BC000132248"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="4"
      id="ixv-105248"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="4"
      id="ixv-105249"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13737"> 
        
      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_S000042758_Cid_C000132248" id="ixv-13747"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13752">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="ixv-105250"
      unitRef="pure">0.0070</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="ixv-105251"
      unitRef="pure">0.0072</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="ixv-105252"
      unitRef="pure">0.0074</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105253"
      unitRef="pure">0.0067</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="ixv-105254"
      unitRef="pure">0.0061</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="ixv-105255"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="ixv-105256"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="ixv-105257"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105258"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="ixv-105259"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="ixv-105260"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="ixv-105261"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="ixv-105262"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105263"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="ixv-105264"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="ixv-105265"
      unitRef="pure">0.0102</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="ixv-105266"
      unitRef="pure">0.0104</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="ixv-105267"
      unitRef="pure">0.0181</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105268"
      unitRef="pure">0.0074</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="ixv-105269"
      unitRef="pure">0.0068</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="footnoteS000042758ASDH-PROAOE_AC000132246_FW"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="footnoteS000042758ASDH-PROAOE_AC000132247_FW"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="footnoteS000042758ASDH-PROAOE_AC000132248_FW"
      unitRef="pure">-0.0006</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105273"
      unitRef="pure">-0.0000</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="footnoteS000042758ASDH-PROAOE_AC000205018_FW"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="6"
      id="ixv-105275"
      unitRef="pure">0.0100</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="6"
      id="ixv-105276"
      unitRef="pure">0.0100</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="6"
      id="ixv-105277"
      unitRef="pure">0.0175</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="6"
      id="ixv-105278"
      unitRef="pure">0.0074</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="6"
      id="ixv-105279"
      unitRef="pure">0.0066</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13989">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-13998">
     
       
     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_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105280"
      unitRef="usd">498</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105281"
      unitRef="usd">498</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105282"
      unitRef="usd">498</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105283"
      unitRef="usd">498</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105284"
      unitRef="usd">278</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105285"
      unitRef="usd">178</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105286"
      unitRef="usd">76</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105287"
      unitRef="usd">76</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105288"
      unitRef="usd">67</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105289"
      unitRef="usd">67</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105290"
      unitRef="usd">709</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105291"
      unitRef="usd">709</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105292"
      unitRef="usd">713</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105293"
      unitRef="usd">713</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105294"
      unitRef="usd">562</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105295"
      unitRef="usd">562</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105296"
      unitRef="usd">237</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105297"
      unitRef="usd">237</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105298"
      unitRef="usd">215</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105299"
      unitRef="usd">215</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105300"
      unitRef="usd">938</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105301"
      unitRef="usd">938</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105302"
      unitRef="usd">946</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105303"
      unitRef="usd">946</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105304"
      unitRef="usd">972</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105305"
      unitRef="usd">972</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105306"
      unitRef="usd">411</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105307"
      unitRef="usd">411</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105308"
      unitRef="usd">376</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105309"
      unitRef="usd">376</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105310"
      unitRef="usd">1596</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000042758_Cid_C000132246"
      decimals="0"
      id="ixv-105311"
      unitRef="usd">1596</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105312"
      unitRef="usd">1615</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000042758_Cid_C000132247"
      decimals="0"
      id="ixv-105313"
      unitRef="usd">1615</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105314"
      unitRef="usd">1912</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000042758_Cid_C000132248"
      decimals="0"
      id="ixv-105315"
      unitRef="usd">1912</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105316"
      unitRef="usd">918</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000042758_Cid_C000132245"
      decimals="0"
      id="ixv-105317"
      unitRef="usd">918</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105318"
      unitRef="usd">844</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000042758_Cid_C000205018"
      decimals="0"
      id="ixv-105319"
      unitRef="usd">844</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14304">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14309">
     
       
     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 
       
     
       
       88 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      decimals="4"
      id="ixv-105320"
      unitRef="pure">0.88</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14318">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14323">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Normally investing primarily in securities rated BB or B by Standard &amp; Poor's (S&amp;P), Ba or B by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management &amp; Research Company (FMR) to be of comparable quality. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Normally maintaining a duration of three years or less. 
      Investing in floating rate loans, which are often lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds), and other floating rate securities. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-14363">
     
       
      
      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_S000042758_contentCd_ASDH-PRO_RiskMember_FloatingRateLoansMember"
      id="ixv-14372">
     
       
      
      Floating Rate Loans. 
      
     A floating rate loan may not be fully collateralized which may cause the floating rate loan to decline significantly in value. Floating rate loans generally are subject to restrictions on resale. Floating rate loans sometimes trade infrequently in the secondary market. As a result, valuing a floating rate loan can be more difficult, and buying and selling a floating rate loan at an acceptable price can be more difficult or delayed, including extended trade settlement periods. Difficulty in selling a floating rate loan can result in a loss. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-14381">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-14390">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_PrepaymentMember"
      id="ixv-14399">
     
       
      
      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 and can limit the potential for gains when the credit quality of the issuer improves. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-14408">
     
       
      
      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), including floating rate loans, 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, including floating rate loans, 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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-14424">
     
       
     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_S000042758_contentCd_ASDH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-14432">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14439">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14444">
     
       
     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, a hypothetical composite of market indexes, and an additional index over various periods of time. 
        
      
       
     The hypothetical composite of market indexes and additional index 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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14449"> 
        
      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, a hypothetical composite of market indexes, and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14456"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14462"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14467">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14471">
     
       
      
        
      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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14474"> 
        
      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_S000042758_Cid_C000132246_2016"
      decimals="INF"
      id="ixv-105321"
      unitRef="pure">0.1035</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2017"
      decimals="INF"
      id="ixv-105322"
      unitRef="pure">0.0469</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2018"
      decimals="INF"
      id="ixv-105323"
      unitRef="pure">-0.0151</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2019"
      decimals="INF"
      id="ixv-105324"
      unitRef="pure">0.0903</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2020"
      decimals="INF"
      id="ixv-105325"
      unitRef="pure">0.0370</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2021"
      decimals="INF"
      id="ixv-105326"
      unitRef="pure">0.0307</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2022"
      decimals="INF"
      id="ixv-105327"
      unitRef="pure">-0.0629</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2023"
      decimals="INF"
      id="ixv-105328"
      unitRef="pure">0.0996</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2024"
      decimals="INF"
      id="ixv-105329"
      unitRef="pure">0.0791</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_2025"
      decimals="INF"
      id="ixv-105330"
      unitRef="pure">0.0742</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14586">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      decimals="4"
      id="ixv-105331"
      unitRef="pure">0.0707</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14596">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14601">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      decimals="4"
      id="ixv-105332"
      unitRef="pure">-0.0856</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14612">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14617">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      decimals="4"
      id="ixv-105333"
      unitRef="pure">0.0032</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14627">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14632">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14637">
     
       
      
        
      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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14640"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000042758_contentCd_ASDH-PRO"
      id="ixv-14645"> 
        
      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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14650"> 
        
      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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14656"> 
        
      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_S000042758_contentCd_ASDH-PRO"
      id="ixv-14660"> 
        
      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_S000042758_Cid_C000132246_ReturnBeforeTaxes_01"
      id="ixv-14691">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105334"
      unitRef="pure">0.0312</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105335"
      unitRef="pure">0.0340</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105336"
      unitRef="pure">0.0428</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributions_01"
      id="ixv-14708">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105337"
      unitRef="pure">0.0021</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105338"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105339"
      unitRef="pure">0.0234</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-14724">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105340"
      unitRef="pure">0.0180</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105341"
      unitRef="pure">0.0163</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132246_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105342"
      unitRef="pure">0.0242</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132247_ReturnBeforeTaxes_01"
      id="ixv-14739">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132247_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105343"
      unitRef="pure">0.0313</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132247_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105344"
      unitRef="pure">0.0340</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132247_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105345"
      unitRef="pure">0.0428</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132248_ReturnBeforeTaxes_01"
      id="ixv-14754">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132248_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105346"
      unitRef="pure">0.0562</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132248_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105347"
      unitRef="pure">0.0347</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132248_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105348"
      unitRef="pure">0.0408</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000132245_ReturnBeforeTaxes_01"
      id="ixv-14769">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132245_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105349"
      unitRef="pure">0.0769</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132245_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105350"
      unitRef="pure">0.0451</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000132245_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105351"
      unitRef="pure">0.0497</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Cid_C000205018_ReturnBeforeTaxes_01"
      id="ixv-14784">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000205018_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105352"
      unitRef="pure">0.0781</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000205018_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105353"
      unitRef="pure">0.0460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Cid_C000205018_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteASDH-PROS000042758AAR_A_RBT_loc"
      unitRef="pure">0.0449</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_ASDH-PRO_01"
      id="ixv-14799">
         Fidelity Short Duration High Income Fund Composite Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_ASDH-PRO_01"
      decimals="4"
      id="ixv-105355"
      unitRef="pure">0.0754</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_ASDH-PRO_05"
      decimals="4"
      id="ixv-105356"
      unitRef="pure">0.0526</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_F1879_contentCd_ASDH-PRO_10"
      decimals="4"
      id="ixv-105357"
      unitRef="pure">0.0575</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_ASDH-PRO_01"
      id="ixv-14824">
         ICE&#xae; BofA&#xae; 1-5 Year BB-B US Cash Pay High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_ASDH-PRO_01"
      decimals="4"
      id="ixv-105358"
      unitRef="pure">0.0782</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_ASDH-PRO_05"
      decimals="4"
      id="ixv-105359"
      unitRef="pure">0.0502</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_ML221_contentCd_ASDH-PRO_10"
      decimals="4"
      id="ixv-105360"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_ASDH-PRO_01"
      id="ixv-14849">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_ASDH-PRO_01"
      decimals="4"
      id="ixv-105361"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_ASDH-PRO_05"
      decimals="4"
      id="ixv-105362"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000042758_Indexid_LB091_contentCd_ASDH-PRO_10"
      decimals="4"
      id="ixv-105363"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000042758_Cid_C000205018" id="ixv-14890">2018-10-02</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21391">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Series High Income Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21400">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21405">
     
       
     Fidelity&#xae; Series High Income Fund seeks a high level of current income. Growth of capital may also be considered. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21410">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21416">
     
       
     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_S000031534_contentCd_FSH-PRO"
      id="ixv-21426">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      decimals="0"
      id="ixv-105364"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21441">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="ixv-105365"
      unitRef="pure">0.0000</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="ixv-105366"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="ixv-105367"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="footnoteS000031534FSH-PROAOE_AC000098085_AF"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="ixv-105369"
      unitRef="pure">0.0013</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="footnoteS000031534FSH-PROAOE_BC000098085_FW"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="6"
      id="footnoteS000031534FSH-PROAOE_AC000098085_TW"
      unitRef="pure">0.0012</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21547">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21558">
     
       
     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_S000031534_Cid_C000098085"
      decimals="0"
      id="ixv-105372"
      unitRef="usd">12</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="0"
      id="ixv-105373"
      unitRef="usd">41</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="0"
      id="ixv-105374"
      unitRef="usd">72</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000031534_Cid_C000098085"
      decimals="0"
      id="ixv-105375"
      unitRef="usd">165</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21615">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21620">
     
       
     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 
       
     
       
       73 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      decimals="4"
      id="ixv-105376"
      unitRef="pure">0.73</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21629">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21634">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Using the credit quality distribution of an index representing the overall high yield bond market, which as of April 30,  
        2026, was the ICE&#xae; BofA&#xae;&#160;US High Yield Constrained Index, as a guide in structuring the fund's credit quality composition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-21675">
     
       
      
      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_S000031534_contentCd_FSH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-21684">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-21693">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-21702">
     
       
      
      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. 
     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. 
     Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-21717">
     
       
     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_S000031534_contentCd_FSH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-21725">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21732">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21737">
     
       
     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. 
        
      
     The performance shown does not reflect the impact of any fees paid at the fee-based account or plan level, if applicable. 
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21742"> 
        
      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_S000031534_contentCd_FSH-PRO"
      id="ixv-21749"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21757"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21762">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2016"
      decimals="INF"
      id="ixv-105377"
      unitRef="pure">0.1640</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2017"
      decimals="INF"
      id="ixv-105378"
      unitRef="pure">0.0936</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2018"
      decimals="INF"
      id="ixv-105379"
      unitRef="pure">-0.0217</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2019"
      decimals="INF"
      id="ixv-105380"
      unitRef="pure">0.1516</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2020"
      decimals="INF"
      id="ixv-105381"
      unitRef="pure">0.0454</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2021"
      decimals="INF"
      id="ixv-105382"
      unitRef="pure">0.0644</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2022"
      decimals="INF"
      id="ixv-105383"
      unitRef="pure">-0.1026</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2023"
      decimals="INF"
      id="ixv-105384"
      unitRef="pure">0.1120</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2024"
      decimals="INF"
      id="ixv-105385"
      unitRef="pure">0.0929</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_2025"
      decimals="INF"
      id="ixv-105386"
      unitRef="pure">0.1113</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21873">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      decimals="4"
      id="ixv-105387"
      unitRef="pure">0.0871</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21883">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21888">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      decimals="4"
      id="ixv-105388"
      unitRef="pure">-0.1276</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21899">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21904">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      decimals="4"
      id="ixv-105389"
      unitRef="pure">0.0030</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21914">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21919">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000031534_contentCd_FSH-PRO"
      id="ixv-21923">
     
       
      
        
      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_S000031534_contentCd_FSH-PRO"
      id="ixv-21926"> 
        
      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_S000031534_contentCd_FSH-PRO"
      id="ixv-21933"> 
        
      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_S000031534_contentCd_FSH-PRO"
      id="ixv-21938"> 
        
      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_S000031534_Cid_C000098085_ReturnBeforeTaxes_01"
      id="ixv-21983">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105390"
      unitRef="pure">0.1113</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105391"
      unitRef="pure">0.0523</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105392"
      unitRef="pure">0.0682</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributions_01"
      id="ixv-21998">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105393"
      unitRef="pure">0.0795</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105394"
      unitRef="pure">0.0259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105395"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-22013">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105396"
      unitRef="pure">0.0650</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105397"
      unitRef="pure">0.0281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Cid_C000098085_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105398"
      unitRef="pure">0.0407</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000031534_Indexid_ML038_contentCd_FSH-PRO_01"
      id="ixv-22029">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_ML038_contentCd_FSH-PRO_01"
      decimals="4"
      id="ixv-105399"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_ML038_contentCd_FSH-PRO_05"
      decimals="4"
      id="ixv-105400"
      unitRef="pure">0.0450</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_ML038_contentCd_FSH-PRO_10"
      decimals="4"
      id="ixv-105401"
      unitRef="pure">0.0644</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000031534_Indexid_LB091_contentCd_FSH-PRO_01"
      id="ixv-22054">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_LB091_contentCd_FSH-PRO_01"
      decimals="4"
      id="ixv-105402"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_LB091_contentCd_FSH-PRO_05"
      decimals="4"
      id="ixv-105403"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000031534_Indexid_LB091_contentCd_FSH-PRO_10"
      decimals="4"
      id="ixv-105404"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23644">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; High Income Fund 
     /Fidelity Advisor&#xae; High Income Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23659">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23664">
     
       
     Fidelity&#xae; High Income Fund seeks a high level of current income. Growth of capital may also be considered. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23669">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23675">
     
       
     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 33 
        
      of the prospectus 
        
      
       
     and in the sales charge 
       
     waiver appendix to the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23681"> 
        
      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 33 
        
      of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      decimals="0"
      id="ixv-105405"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23700">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="4"
      id="ixv-105406"
      unitRef="pure">0.0400</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="4"
      id="ixv-105407"
      unitRef="pure">0.0400</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="4"
      id="ixv-105408"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="4"
      id="ixv-105409"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="4"
      id="ixv-105410"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="4"
      id="footnoteAGHI-PROS000017690SHF_AC000206227"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="4"
      id="footnoteAGHI-PROS000017690SHF_AC000206223"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="4"
      id="footnoteAGHI-PROS000017690SHF_BC000206224"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="4"
      id="ixv-105414"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="4"
      id="ixv-105415"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23806"> 
        
      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_S000017690_Cid_C000206224" id="ixv-23816"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-23821">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="6"
      id="ixv-105416"
      unitRef="pure">0.0069</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="6"
      id="ixv-105417"
      unitRef="pure">0.0069</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="6"
      id="ixv-105418"
      unitRef="pure">0.0069</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="6"
      id="ixv-105419"
      unitRef="pure">0.0069</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="6"
      id="ixv-105420"
      unitRef="pure">0.0059</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="6"
      id="ixv-105421"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="6"
      id="ixv-105422"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="6"
      id="ixv-105423"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="6"
      id="ixv-105424"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="6"
      id="ixv-105425"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="6"
      id="ixv-105426"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="6"
      id="ixv-105427"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="6"
      id="ixv-105428"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="6"
      id="ixv-105429"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="6"
      id="ixv-105430"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206227_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206223_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206224_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206225_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206226_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206227_TE"
      unitRef="pure">0.0098</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206223_TE"
      unitRef="pure">0.0098</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206224_TE"
      unitRef="pure">0.0173</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206225_TE"
      unitRef="pure">0.0073</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="6"
      id="footnoteS000017690AGHI-PROAOE_AC000206226_TE"
      unitRef="pure">0.0063</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24054">
     
       
     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_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105441"
      unitRef="usd">496</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105442"
      unitRef="usd">496</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105443"
      unitRef="usd">496</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105444"
      unitRef="usd">496</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105445"
      unitRef="usd">276</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105446"
      unitRef="usd">176</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105447"
      unitRef="usd">75</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105448"
      unitRef="usd">75</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105449"
      unitRef="usd">64</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105450"
      unitRef="usd">64</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105451"
      unitRef="usd">700</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105452"
      unitRef="usd">700</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105453"
      unitRef="usd">700</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105454"
      unitRef="usd">700</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105455"
      unitRef="usd">545</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105456"
      unitRef="usd">545</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105457"
      unitRef="usd">233</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105458"
      unitRef="usd">233</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105459"
      unitRef="usd">202</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105460"
      unitRef="usd">202</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105461"
      unitRef="usd">920</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105462"
      unitRef="usd">920</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105463"
      unitRef="usd">920</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105464"
      unitRef="usd">920</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105465"
      unitRef="usd">939</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105466"
      unitRef="usd">939</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105467"
      unitRef="usd">406</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105468"
      unitRef="usd">406</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105469"
      unitRef="usd">351</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105470"
      unitRef="usd">351</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105471"
      unitRef="usd">1553</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000017690_Cid_C000206227"
      decimals="0"
      id="ixv-105472"
      unitRef="usd">1553</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105473"
      unitRef="usd">1553</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000017690_Cid_C000206223"
      decimals="0"
      id="ixv-105474"
      unitRef="usd">1553</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105475"
      unitRef="usd">1842</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000017690_Cid_C000206224"
      decimals="0"
      id="ixv-105476"
      unitRef="usd">1842</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105477"
      unitRef="usd">906</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000017690_Cid_C000206225"
      decimals="0"
      id="ixv-105478"
      unitRef="usd">906</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105479"
      unitRef="usd">786</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000017690_Cid_C000206226"
      decimals="0"
      id="ixv-105480"
      unitRef="usd">786</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24362">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24367">
     
       
     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 
       
     
       
       78 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      decimals="4"
      id="ixv-105481"
      unitRef="pure">0.78</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24376">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24381">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Using the credit quality distribution of an index representing the overall high yield bond market, which as of April 30,  
        2026, was the ICE&#xae; BofA&#xae;&#160;US High Yield Constrained Index, as a guide in structuring the fund's credit quality composition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-24422">
     
       
      
      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_S000017690_contentCd_AGHI-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-24431">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO_RiskMember_ForeignExposureMember"
      id="ixv-24440">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-24449">
     
       
      
      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. 
     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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-24465">
     
       
     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_S000017690_contentCd_AGHI-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-24473">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24480">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24485">
     
       
     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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24490"> 
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24497"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24503"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24508">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24512">
     
       
      
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24515"> 
        
      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_S000017690_Cid_C000206227_2019"
      decimals="INF"
      id="ixv-105482"
      unitRef="pure">0.1392</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2020"
      decimals="INF"
      id="ixv-105483"
      unitRef="pure">0.0203</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2021"
      decimals="INF"
      id="ixv-105484"
      unitRef="pure">0.0405</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2022"
      decimals="INF"
      id="ixv-105485"
      unitRef="pure">-0.1226</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2023"
      decimals="INF"
      id="ixv-105486"
      unitRef="pure">0.1064</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2024"
      decimals="INF"
      id="ixv-105487"
      unitRef="pure">0.0910</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_2025"
      decimals="INF"
      id="ixv-105488"
      unitRef="pure">0.0951</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24617">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      decimals="4"
      id="ixv-105489"
      unitRef="pure">0.0817</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24627">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24632">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      decimals="4"
      id="ixv-105490"
      unitRef="pure">-0.1340</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24643">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24648">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      decimals="4"
      id="ixv-105491"
      unitRef="pure">0.0036</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24658">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24663">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24668">
     
       
      
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24671"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000017690_contentCd_AGHI-PRO"
      id="ixv-24676"> 
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24681"> 
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24687"> 
        
      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_S000017690_contentCd_AGHI-PRO"
      id="ixv-24691"> 
        
      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_S000017690_Cid_C000206227_ReturnBeforeTaxes_01"
      id="ixv-24722">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105492"
      unitRef="pure">0.0513</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105493"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_A_RBT_loc"
      unitRef="pure">0.0389</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributions_01"
      id="ixv-24740">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105495"
      unitRef="pure">0.0251</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105496"
      unitRef="pure">0.0080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_A_ATD_loc"
      unitRef="pure">0.0172</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-24756">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105498"
      unitRef="pure">0.0297</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105499"
      unitRef="pure">0.0129</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206227_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_A_ATDS_loc"
      unitRef="pure">0.0200</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206223_ReturnBeforeTaxes_01"
      id="ixv-24772">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206223_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105501"
      unitRef="pure">0.0513</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206223_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105502"
      unitRef="pure">0.0298</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206223_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_B_RBT_loc"
      unitRef="pure">0.0388</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206224_ReturnBeforeTaxes_01"
      id="ixv-24788">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206224_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105504"
      unitRef="pure">0.0769</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206224_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105505"
      unitRef="pure">0.0304</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206224_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_C_RBT_loc"
      unitRef="pure">0.0371</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206225_ReturnBeforeTaxes_01"
      id="ixv-24804">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206225_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105507"
      unitRef="pure">0.0977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206225_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105508"
      unitRef="pure">0.0412</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206225_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_D_RBT_loc"
      unitRef="pure">0.0476</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000206226_ReturnBeforeTaxes_01"
      id="ixv-24820">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206226_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105510"
      unitRef="pure">0.0989</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206226_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105511"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000206226_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAGHI-PROS000017690AAR_E_RBT_loc"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_AGHI-PRO_01"
      id="ixv-24835">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_AGHI-PRO_01"
      decimals="4"
      id="ixv-105513"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_AGHI-PRO_05"
      decimals="4"
      id="ixv-105514"
      unitRef="pure">0.0450</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_AGHI-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105515"
      unitRef="pure">0.0564</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_AGHI-PRO_01"
      id="ixv-24860">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_AGHI-PRO_01"
      decimals="4"
      id="ixv-105516"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_AGHI-PRO_05"
      decimals="4"
      id="ixv-105517"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_AGHI-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105518"
      unitRef="pure">0.0251</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000017690_Cid_C000206227" id="ixv-24901">2018-12-04</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000017690_Cid_C000206223" id="ixv-24914">2018-12-04</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000017690_Cid_C000206224" id="ixv-24927">2018-12-04</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000017690_Cid_C000206225" id="ixv-24940">2018-12-04</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000017690_Cid_C000206226" id="ixv-24953">2018-12-04</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31486">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Capital &amp; Income Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31495">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31500">
     
       
     Fidelity&#xae; Capital &amp; Income Fund seeks to provide a combination of income and capital growth. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31505">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31511">
     
       
     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, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31522">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      decimals="0"
      id="ixv-105519"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31537">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="ixv-105520"
      unitRef="pure">0.0063</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="ixv-105521"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="ixv-105522"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="footnoteS000007495CAI-SPH-PROAOE_AC000020469_AF"
      unitRef="pure">0.0024</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="ixv-105524"
      unitRef="pure">0.0088</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="footnoteS000007495CAI-SPH-PROAOE_BC000020469_FW"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="6"
      id="footnoteS000007495CAI-SPH-PROAOE_AC000020469_TW"
      unitRef="pure">0.0086</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31641">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31652">
     
       
     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_S000007495_Cid_C000020469"
      decimals="0"
      id="ixv-105527"
      unitRef="usd">88</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="0"
      id="ixv-105528"
      unitRef="usd">278</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="0"
      id="ixv-105529"
      unitRef="usd">485</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000007495_Cid_C000020469"
      decimals="0"
      id="ixv-105530"
      unitRef="usd">1082</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31707">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31712">
     
       
     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 
       
     
       
       26 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105531"
      unitRef="pure">0.26</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31721">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31726">
     
       
      
       Normally investing at least 80% of assets in a combination of debt securities and income-producing equity securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     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. 
     Income-producing equity securities are equity securities that pay, or are expected to pay within the next three months, dividends or interest. 
     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 equity and debt securities, including defaulted securities, with an emphasis on lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds). 
      Investing in companies in troubled or uncertain financial condition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-31754">
     
       
      
      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_S000007495_contentCd_CAI-SPH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-31763">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-31772">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-31781">
     
       
      
      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. 
     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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-31799">
     
       
     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_S000007495_contentCd_CAI-SPH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-31807">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31814">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31819">
     
       
     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_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31824"> 
        
      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_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31831"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31837"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31842">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2016"
      decimals="INF"
      id="ixv-105532"
      unitRef="pure">0.1073</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2017"
      decimals="INF"
      id="ixv-105533"
      unitRef="pure">0.1164</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2018"
      decimals="INF"
      id="ixv-105534"
      unitRef="pure">-0.0577</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2019"
      decimals="INF"
      id="ixv-105535"
      unitRef="pure">0.1894</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2020"
      decimals="INF"
      id="ixv-105536"
      unitRef="pure">0.1024</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2021"
      decimals="INF"
      id="ixv-105537"
      unitRef="pure">0.1165</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2022"
      decimals="INF"
      id="ixv-105538"
      unitRef="pure">-0.1047</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2023"
      decimals="INF"
      id="ixv-105539"
      unitRef="pure">0.1299</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2024"
      decimals="INF"
      id="ixv-105540"
      unitRef="pure">0.1068</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_2025"
      decimals="INF"
      id="ixv-105541"
      unitRef="pure">0.1236</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31953">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105542"
      unitRef="pure">0.1439</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31963">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31968">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105543"
      unitRef="pure">-0.1752</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31979">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31984">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105544"
      unitRef="pure">0.0081</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31994">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-31999">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-32003">
     
       
      
        
      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_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-32006"> 
        
      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_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-32013"> 
        
      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_S000007495_contentCd_CAI-SPH-PRO"
      id="ixv-32018"> 
        
      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_S000007495_Cid_C000020469_ReturnBeforeTaxes_01"
      id="ixv-32063">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105545"
      unitRef="pure">0.1236</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105546"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105547"
      unitRef="pure">0.0793</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributions_01"
      id="ixv-32078">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105548"
      unitRef="pure">0.1014</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105549"
      unitRef="pure">0.0454</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105550"
      unitRef="pure">0.0558</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-32093">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105551"
      unitRef="pure">0.0725</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105552"
      unitRef="pure">0.0441</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Cid_C000020469_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105553"
      unitRef="pure">0.0524</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000007495_Indexid_ML040_contentCd_CAI-SPH-PRO_01"
      id="ixv-32109">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_ML040_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105554"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_ML040_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105555"
      unitRef="pure">0.0450</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_ML040_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105556"
      unitRef="pure">0.0644</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000007495_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      id="ixv-32134">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105557"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_LB091_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105558"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000007495_Indexid_LB091_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105559"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32251">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Focused High Income Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32260">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32265">
     
       
     Fidelity&#xae; Focused High Income Fund seeks a high level of income. The fund may also seek capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32270">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32276">
     
       
     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, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32287">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      decimals="0"
      id="ixv-105560"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32302">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="ixv-105561"
      unitRef="pure">0.0070</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="ixv-105562"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="ixv-105563"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="ixv-105564"
      unitRef="pure">0.0076</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="footnoteS000017689CAI-SPH-PROAOE_AC000048885_FW"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="6"
      id="ixv-105566"
      unitRef="pure">0.0075</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32376">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32385">
     
       
     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_S000017689_Cid_C000048885"
      decimals="0"
      id="ixv-105567"
      unitRef="usd">77</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="0"
      id="ixv-105568"
      unitRef="usd">241</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="0"
      id="ixv-105569"
      unitRef="usd">421</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017689_Cid_C000048885"
      decimals="0"
      id="ixv-105570"
      unitRef="usd">941</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32440">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32445">
     
       
     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 
       
     
       
       77 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105571"
      unitRef="pure">0.77</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32454">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32459">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Normally investing primarily in securities rated BB by Standard &amp; Poor's (S&amp;P), Ba by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management &amp; Research Company LLC (FMR) to be of comparable quality. 
      Potentially investing in securities that have a higher or lower credit quality. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-32494">
     
       
      
      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_S000017689_contentCd_CAI-SPH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-32503">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-32512">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-32521">
     
       
      
      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. 
     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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-32539">
     
       
     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_S000017689_contentCd_CAI-SPH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-32547">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32554">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32559">
     
       
     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_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32564"> 
        
      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_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32571"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32577"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32582">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2016"
      decimals="INF"
      id="ixv-105572"
      unitRef="pure">0.1094</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2017"
      decimals="INF"
      id="ixv-105573"
      unitRef="pure">0.0697</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2018"
      decimals="INF"
      id="ixv-105574"
      unitRef="pure">-0.0293</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2019"
      decimals="INF"
      id="ixv-105575"
      unitRef="pure">0.1547</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2020"
      decimals="INF"
      id="ixv-105576"
      unitRef="pure">0.0450</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2021"
      decimals="INF"
      id="ixv-105577"
      unitRef="pure">0.0314</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2022"
      decimals="INF"
      id="ixv-105578"
      unitRef="pure">-0.1098</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2023"
      decimals="INF"
      id="ixv-105579"
      unitRef="pure">0.1025</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2024"
      decimals="INF"
      id="ixv-105580"
      unitRef="pure">0.0602</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_2025"
      decimals="INF"
      id="ixv-105581"
      unitRef="pure">0.0889</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32693">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105582"
      unitRef="pure">0.0766</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32703">2019-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32708">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105583"
      unitRef="pure">-0.0942</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32719">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32724">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105584"
      unitRef="pure">-0.0014</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32735">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32740">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32744">
     
       
      
        
      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_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32747"> 
        
      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_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32754"> 
        
      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_S000017689_contentCd_CAI-SPH-PRO"
      id="ixv-32759"> 
        
      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_S000017689_Cid_C000048885_ReturnBeforeTaxes_01"
      id="ixv-32804">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105585"
      unitRef="pure">0.0889</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105586"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105587"
      unitRef="pure">0.0497</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributions_01"
      id="ixv-32819">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105588"
      unitRef="pure">0.0644</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105589"
      unitRef="pure">0.0127</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105590"
      unitRef="pure">0.0306</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-32834">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105591"
      unitRef="pure">0.0521</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105592"
      unitRef="pure">0.0158</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Cid_C000048885_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105593"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017689_Indexid_ML039_contentCd_CAI-SPH-PRO_01"
      id="ixv-32850">
         ICE&#xae; BofA&#xae; BB US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_ML039_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105594"
      unitRef="pure">0.0893</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_ML039_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105595"
      unitRef="pure">0.0378</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_ML039_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105596"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017689_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      id="ixv-32875">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105597"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_LB091_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105598"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017689_Indexid_LB091_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105599"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-32992">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; High Income Fund 
     /Fidelity&#xae; High Income Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33005">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33010">
     
       
     Fidelity&#xae; High Income Fund seeks a high level of current income. Growth of capital may also be considered. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33015">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33021">
     
       
     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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33032">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      decimals="0"
      id="ixv-105600"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33047">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="6"
      id="ixv-105601"
      unitRef="pure">0.0065</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="6"
      id="ixv-105602"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="6"
      id="ixv-105603"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="6"
      id="footnoteS000017690CAI-SPH-PROAOE_AC000048886_AF"
      unitRef="pure">0.0003</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="6"
      id="footnoteS000017690CAI-SPH-PROAOE_AC000048886_TE"
      unitRef="pure">0.0069</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33124">
     
       
     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_S000017690_Cid_C000048886"
      decimals="0"
      id="ixv-105606"
      unitRef="usd">70</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="0"
      id="ixv-105607"
      unitRef="usd">221</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="0"
      id="ixv-105608"
      unitRef="usd">384</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000017690_Cid_C000048886"
      decimals="0"
      id="ixv-105609"
      unitRef="usd">859</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33181">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33186">
     
       
     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 
       
     
       
       78 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105610"
      unitRef="pure">0.78</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33195">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33200">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Using the credit quality distribution of an index representing the overall high yield bond market, which as of April 30,  
        2026, was the ICE&#xae; BofA&#xae;&#160;US High Yield Constrained Index, as a guide in structuring the fund's credit quality composition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-33241">
     
       
      
      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_S000017690_contentCd_CAI-SPH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-33250">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-33259">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-33268">
     
       
      
      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. 
     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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-33286">
     
       
     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_S000017690_contentCd_CAI-SPH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-33294">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33301">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33306">
     
       
     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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33311"> 
        
      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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33318"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33324"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33329">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2016"
      decimals="INF"
      id="ixv-105611"
      unitRef="pure">0.1597</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2017"
      decimals="INF"
      id="ixv-105612"
      unitRef="pure">0.0858</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2018"
      decimals="INF"
      id="ixv-105613"
      unitRef="pure">-0.0244</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2019"
      decimals="INF"
      id="ixv-105614"
      unitRef="pure">0.1425</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2020"
      decimals="INF"
      id="ixv-105615"
      unitRef="pure">0.0244</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2021"
      decimals="INF"
      id="ixv-105616"
      unitRef="pure">0.0423</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2022"
      decimals="INF"
      id="ixv-105617"
      unitRef="pure">-0.1200</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2023"
      decimals="INF"
      id="ixv-105618"
      unitRef="pure">0.1096</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2024"
      decimals="INF"
      id="ixv-105619"
      unitRef="pure">0.0956</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_2025"
      decimals="INF"
      id="ixv-105620"
      unitRef="pure">0.0982</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33440">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105621"
      unitRef="pure">0.0825</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33450">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33455">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105622"
      unitRef="pure">-0.1334</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33466">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33471">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      decimals="4"
      id="ixv-105623"
      unitRef="pure">0.0031</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33481">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33486">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33490">
     
       
      
        
      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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33493"> 
        
      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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33500"> 
        
      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_S000017690_contentCd_CAI-SPH-PRO"
      id="ixv-33505"> 
        
      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_S000017690_Cid_C000048886_ReturnBeforeTaxes_01"
      id="ixv-33550">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105624"
      unitRef="pure">0.0982</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-105625"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-105626"
      unitRef="pure">0.0582</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributions_01"
      id="ixv-33565">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105627"
      unitRef="pure">0.0696</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-105628"
      unitRef="pure">0.0180</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-105629"
      unitRef="pure">0.0346</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-33580">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105630"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-105631"
      unitRef="pure">0.0211</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Cid_C000048886_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-105632"
      unitRef="pure">0.0344</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_CAI-SPH-PRO_01"
      id="ixv-33596">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105633"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105634"
      unitRef="pure">0.0450</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_ML040_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105635"
      unitRef="pure">0.0644</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      id="ixv-33621">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_CAI-SPH-PRO_01"
      decimals="4"
      id="ixv-105636"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_CAI-SPH-PRO_05"
      decimals="4"
      id="ixv-105637"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000017690_Indexid_LB091_contentCd_CAI-SPH-PRO_10"
      decimals="4"
      id="ixv-105638"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37444">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; SAI High Income Fund 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37453">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37458">
     
       
     Fidelity&#xae; SAI High Income Fund seeks a high level of current income. Growth of capital may also be considered. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37463">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37469">
     
       
     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_S000071838_contentCd_SAH-PRO"
      id="ixv-37479">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      decimals="0"
      id="ixv-105639"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37494">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="6"
      id="ixv-105640"
      unitRef="pure">0.0053</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="6"
      id="ixv-105641"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="6"
      id="ixv-105642"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="6"
      id="footnoteS000071838SAH-PROAOE_AC000227362_AF"
      unitRef="pure">0.0014</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="6"
      id="footnoteS000071838SAH-PROAOE_AC000227362_TE"
      unitRef="pure">0.0068</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37571">
     
       
     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_S000071838_Cid_C000227362"
      decimals="0"
      id="ixv-105645"
      unitRef="usd">69</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="0"
      id="ixv-105646"
      unitRef="usd">218</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="0"
      id="ixv-105647"
      unitRef="usd">379</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000071838_Cid_C000227362"
      decimals="0"
      id="ixv-105648"
      unitRef="usd">847</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37628">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37633">
     
       
     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 
       
     
       
       90 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      decimals="4"
      id="ixv-105649"
      unitRef="pure">0.90</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37642">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37647">
     
       
      
       
        Normally investing primarily in income-producing debt securities, preferred stocks, and convertible securities. 
      
     Normally investing at least 80% of assets in below investment grade debt securities. 
      
       Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      
       
        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. 
      Potentially investing in non-income producing securities, including defaulted securities and common stocks. 
      Investing in companies in troubled or uncertain financial condition. 
      Using the credit quality distribution of an index representing the overall high yield bond market, currently the ICE&#xae; BofA&#xae;&#160;US High Yield Constrained Index, as a guide in structuring the fund's credit quality composition. 
      Investing in domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      
      
       
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-37685">
     
       
      
      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_S000071838_contentCd_SAH-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-37694">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO_RiskMember_ForeignExposureMember"
      id="ixv-37703">
     
       
      
      Foreign Exposure. 
      
     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. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-37712">
     
       
      
      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. 
     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. 
      
       Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-37730">
     
       
     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_S000071838_contentCd_SAH-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-37738">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37745">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37750">
     
       
     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_S000071838_contentCd_SAH-PRO"
      id="ixv-37755"> 
        
      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_S000071838_contentCd_SAH-PRO"
      id="ixv-37762"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37768"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37773">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_2022"
      decimals="INF"
      id="ixv-105650"
      unitRef="pure">-0.1096</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_2023"
      decimals="INF"
      id="ixv-105651"
      unitRef="pure">0.1076</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_2024"
      decimals="INF"
      id="ixv-105652"
      unitRef="pure">0.0975</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_2025"
      decimals="INF"
      id="ixv-105653"
      unitRef="pure">0.1023</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37865">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      decimals="4"
      id="ixv-105654"
      unitRef="pure">0.0640</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37875">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37880">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      decimals="4"
      id="ixv-105655"
      unitRef="pure">-0.1002</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37891">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37896">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      decimals="4"
      id="ixv-105656"
      unitRef="pure">0.0051</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37906">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37911">
     
       
     Average Annual Returns  
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000071838_contentCd_SAH-PRO"
      id="ixv-37915">
     
       
      
        
      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_S000071838_contentCd_SAH-PRO"
      id="ixv-37918"> 
        
      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_S000071838_contentCd_SAH-PRO"
      id="ixv-37925"> 
        
      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_S000071838_contentCd_SAH-PRO"
      id="ixv-37930"> 
        
      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_S000071838_Cid_C000227362_ReturnBeforeTaxes_01"
      id="ixv-37968">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105657"
      unitRef="pure">0.1023</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSAH-PROS000071838AAR_A_RBT_loc"
      unitRef="pure">0.0441</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributions_01"
      id="ixv-37981">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105659"
      unitRef="pure">0.0739</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSAH-PROS000071838AAR_A_ATD_loc"
      unitRef="pure">0.0213</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-37994">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105661"
      unitRef="pure">0.0599</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Cid_C000227362_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSAH-PROS000071838AAR_A_ATDS_loc"
      unitRef="pure">0.0235</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000071838_Indexid_ML040_contentCd_SAH-PRO_01"
      id="ixv-38008">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Indexid_ML040_contentCd_SAH-PRO_01"
      decimals="4"
      id="ixv-105663"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Indexid_ML040_contentCd_SAH-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105664"
      unitRef="pure">0.0443</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000071838_Indexid_LB091_contentCd_SAH-PRO_01"
      id="ixv-38027">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Indexid_LB091_contentCd_SAH-PRO_01"
      decimals="4"
      id="ixv-105665"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000071838_Indexid_LB091_contentCd_SAH-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105666"
      unitRef="pure">0.0061</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000071838_Cid_C000227362" id="ixv-38059">2021-05-13</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39655">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Healthy Future Fund 
     /Fidelity Advisor&#xae; Healthy Future Fund A, M, C, I, Z &#160; 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39670">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39675">
     
       
     Fidelity&#xae; Healthy Future Fund seeks long-term growth of capital. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39680">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39686">
     
       
     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  
       
        
      36 
        
      of the prospectus 
        
      
       
     and in 
       
     the sales charge 
       
     waiver appendix to 
       
     the prospectus. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39692"> 
        
      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  
       
        
      36 
        
      of the prospectus 
        
     </oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      decimals="0"
      id="ixv-105667"
      unitRef="usd">50000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39717">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="4"
      id="ixv-105668"
      unitRef="pure">0.0575</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="4"
      id="ixv-105669"
      unitRef="pure">0.0350</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="4"
      id="ixv-105670"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="4"
      id="ixv-105671"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumCumulativeSalesChargeOverOfferingPrice
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="4"
      id="ixv-105672"
      unitRef="pure">0</oef:MaximumCumulativeSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="4"
      id="footnoteAHWF-PROS000075973SHF_AC000235373"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="4"
      id="footnoteAHWF-PROS000075973SHF_AC000235372"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="4"
      id="footnoteAHWF-PROS000075973SHF_BC000235374"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="4"
      id="ixv-105676"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:MaximumDeferredSalesChargeOverOther
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="4"
      id="ixv-105677"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOther>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39823"> 
        
      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_S000075973_Cid_C000235374" id="ixv-39833"> 
        
      On Class C shares redeemed less than one year after purchase. 
        
     </oef:ExpensesDeferredChargesTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-39838">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="ixv-105678"
      unitRef="pure">0.0086</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="ixv-105679"
      unitRef="pure">0.0086</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="ixv-105680"
      unitRef="pure">0.0086</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="ixv-105681"
      unitRef="pure">0.0085</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="ixv-105682"
      unitRef="pure">0.0071</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="ixv-105683"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="ixv-105684"
      unitRef="pure">0.0050</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="ixv-105685"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="ixv-105686"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="ixv-105687"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="ixv-105688"
      unitRef="pure">0.0104</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="ixv-105689"
      unitRef="pure">0.0099</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="ixv-105690"
      unitRef="pure">0.0099</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="ixv-105691"
      unitRef="pure">0.0101</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="ixv-105692"
      unitRef="pure">0.0106</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="ixv-105693"
      unitRef="pure">0.0215</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="ixv-105694"
      unitRef="pure">0.0235</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="ixv-105695"
      unitRef="pure">0.0285</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="ixv-105696"
      unitRef="pure">0.0186</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="ixv-105697"
      unitRef="pure">0.0177</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="footnoteS000075973AHWF-PROAOE_AC000235373_FW"
      unitRef="pure">-0.0085</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="footnoteS000075973AHWF-PROAOE_AC000235372_FW"
      unitRef="pure">-0.0080</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="footnoteS000075973AHWF-PROAOE_AC000235374_FW"
      unitRef="pure">-0.0080</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="footnoteS000075973AHWF-PROAOE_AC000235370_FW"
      unitRef="pure">-0.0081</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="footnoteS000075973AHWF-PROAOE_AC000235369_FW"
      unitRef="pure">-0.0087</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="6"
      id="ixv-105703"
      unitRef="pure">0.0130</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="6"
      id="ixv-105704"
      unitRef="pure">0.0155</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="6"
      id="ixv-105705"
      unitRef="pure">0.0205</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="6"
      id="ixv-105706"
      unitRef="pure">0.0105</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="6"
      id="ixv-105707"
      unitRef="pure">0.0090</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40076">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40085">
     
       
     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_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105708"
      unitRef="usd">700</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105709"
      unitRef="usd">700</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105710"
      unitRef="usd">502</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105711"
      unitRef="usd">502</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105712"
      unitRef="usd">308</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105713"
      unitRef="usd">208</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105714"
      unitRef="usd">107</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105715"
      unitRef="usd">107</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105716"
      unitRef="usd">92</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105717"
      unitRef="usd">92</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105718"
      unitRef="usd">1105</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105719"
      unitRef="usd">1105</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105720"
      unitRef="usd">958</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105721"
      unitRef="usd">958</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105722"
      unitRef="usd">781</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105723"
      unitRef="usd">781</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105724"
      unitRef="usd">478</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105725"
      unitRef="usd">478</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105726"
      unitRef="usd">442</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105727"
      unitRef="usd">442</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105728"
      unitRef="usd">1563</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105729"
      unitRef="usd">1563</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105730"
      unitRef="usd">1467</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105731"
      unitRef="usd">1467</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105732"
      unitRef="usd">1408</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105733"
      unitRef="usd">1408</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105734"
      unitRef="usd">904</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105735"
      unitRef="usd">904</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105736"
      unitRef="usd">849</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105737"
      unitRef="usd">849</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105738"
      unitRef="usd">2829</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075973_Cid_C000235373"
      decimals="0"
      id="ixv-105739"
      unitRef="usd">2829</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105740"
      unitRef="usd">2862</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075973_Cid_C000235372"
      decimals="0"
      id="ixv-105741"
      unitRef="usd">2862</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105742"
      unitRef="usd">2930</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075973_Cid_C000235374"
      decimals="0"
      id="ixv-105743"
      unitRef="usd">2930</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105744"
      unitRef="usd">2090</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075973_Cid_C000235370"
      decimals="0"
      id="ixv-105745"
      unitRef="usd">2090</oef:ExpenseExampleNoRedemptionYear10>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105746"
      unitRef="usd">1986</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Pid_S000075973_Cid_C000235369"
      decimals="0"
      id="ixv-105747"
      unitRef="usd">1986</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40393">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40398">
     
       
     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 
       
     
       
       
       80 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      decimals="4"
      id="ixv-105748"
      unitRef="pure">0.80</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40408">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40413">
     
       
     &#x2022;&#160; Normally investing at least 80% of its assets in equity securities of companies that Fidelity Management &amp; Research Company LLC (FMR) (the Adviser) believes are working to: (i)&#160;extend and/or improve life expectancy, enhance health and wellness in people's lives, and/or (ii)&#160;mitigate environmental impacts affecting health and wellness, in each case through the products, services, or technology they provide. Such companies include those that (i)&#160;attribute 50% or more of their revenues to products focused on disease treatment, health care access, nutrition, fitness and wearables, clean emissions, dwelling-related property and casualty insurance, life and health insurance, or retirement financial security, or (ii)&#160;with respect to seeking to mitigate environmental impacts, those that are contained in the MSCI World Health &amp; Wellness Select Index. 
     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 securities of domestic and foreign issuers. 
      Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments. 
      Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-40444">
     
       
      
      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_S000075973_contentCd_AHWF-PRO_RiskMember_SustainabilityRiskMember"
      id="ixv-40453">
     
       
      
      Sustainability Risk. 
      
     Application of Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) environmental, social and governance (ESG)  
       rating process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG  
       rating process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO_RiskMember_ForeignExposureMember"
      id="ixv-40470">
     
       
      
      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_S000075973_contentCd_AHWF-PRO_RiskMember_GeographicExposureToEuropeMember"
      id="ixv-40479">
     
       
      
      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_S000075973_contentCd_AHWF-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-40488">
     
       
      
      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_S000075973_contentCd_AHWF-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-40497">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to 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_S000075973_contentCd_AHWF-PRO_RiskMember_ManagementRiskMember"
      id="ixv-40506">
     
       
      
      Management Risk. 
      
     The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies . 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-40517">
     
       
     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_S000075973_contentCd_AHWF-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-40522">
     
       
     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_S000075973_contentCd_AHWF-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-40530">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40537">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40542">
     
       
     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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40547"> 
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40554"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40560"> 
        
      institutional.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40565">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:BarChartNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40569">
     
       
      
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40572"> 
        
      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_S000075973_Cid_C000235373_2023"
      decimals="INF"
      id="ixv-105749"
      unitRef="pure">0.1870</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_2024"
      decimals="INF"
      id="ixv-105750"
      unitRef="pure">0.1681</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_2025"
      decimals="INF"
      id="ixv-105751"
      unitRef="pure">0.0728</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40661">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      decimals="4"
      id="ixv-105752"
      unitRef="pure">0.0920</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40671">2024-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40676">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      decimals="4"
      id="ixv-105753"
      unitRef="pure">-0.0545</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40687">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40692">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      decimals="4"
      id="ixv-105754"
      unitRef="pure">-0.0437</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40703">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40708">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40713">
     
       
      
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40716"> 
        
      Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. 
        
     </oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000075973_contentCd_AHWF-PRO"
      id="ixv-40721"> 
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40726"> 
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40732"> 
        
      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_S000075973_contentCd_AHWF-PRO"
      id="ixv-40736"> 
        
      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_S000075973_Cid_C000235373_ReturnBeforeTaxes_01"
      id="ixv-40762">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105755"
      unitRef="pure">0.0111</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_A_RBT_loc"
      unitRef="pure">0.0833</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributions_01"
      id="ixv-40777">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-105757"
      unitRef="pure">0.0077</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_A_ATD_loc"
      unitRef="pure">0.0823</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-40790">
          Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-105759"
      unitRef="pure">0.0087</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235373_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_A_ATDS_loc"
      unitRef="pure">0.0649</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235372_ReturnBeforeTaxes_01"
      id="ixv-40803">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235372_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105761"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235372_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_B_RBT_loc"
      unitRef="pure">0.0877</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235374_ReturnBeforeTaxes_01"
      id="ixv-40816">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235374_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105763"
      unitRef="pure">0.0546</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235374_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_C_RBT_loc"
      unitRef="pure">0.0928</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235370_ReturnBeforeTaxes_01"
      id="ixv-40829">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235370_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105765"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235370_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_D_RBT_loc"
      unitRef="pure">0.1039</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Cid_C000235369_ReturnBeforeTaxes_01"
      id="ixv-40842">
         Return Before Taxes 
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235369_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-105767"
      unitRef="pure">0.0770</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235369_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteAHWF-PROS000075973AAR_E_RBT_loc"
      unitRef="pure">0.1054</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Indexid_IXV9X_contentCd_AHWF-PRO_01"
      id="ixv-40854">
         MSCI World Health &amp; Wellness Select Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Indexid_IXV9X_contentCd_AHWF-PRO_01"
      decimals="4"
      id="ixv-105769"
      unitRef="pure">0.1376</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Indexid_IXV9X_contentCd_AHWF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105770"
      unitRef="pure">0.1151</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075973_Indexid_MS159_contentCd_AHWF-PRO_01"
      id="ixv-40873">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Indexid_MS159_contentCd_AHWF-PRO_01"
      decimals="4"
      id="ixv-105771"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075973_Indexid_MS159_contentCd_AHWF-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-105772"
      unitRef="pure">0.1655</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235373" id="ixv-40905">2022-05-24</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235372" id="ixv-40918">2022-05-24</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235374" id="ixv-40931">2022-05-24</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235370" id="ixv-40944">2022-05-24</oef:AnnualReturnInceptionDate>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235369" id="ixv-40957">2022-05-24</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47134">
     
       
     Fund Summary 
       
     Fund /Class: 
     Fidelity&#xae; Healthy Future Fund 
     /Fidelity&#xae; Healthy Future Fund  
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47147">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47152">
     
       
     Fidelity&#xae; Healthy Future Fund seeks long-term growth of capital. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47157">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47163">
     
       
     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_S000075973_contentCd_HWF-PRO"
      id="ixv-47174">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      decimals="0"
      id="ixv-105773"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47189">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="ixv-105774"
      unitRef="pure">0.0081</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="ixv-105775"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="ixv-105776"
      unitRef="pure">0.0100</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="ixv-105777"
      unitRef="pure">0.0181</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="footnoteS000075973HWF-PROAOE_AC000235371_FW"
      unitRef="pure">-0.0076</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="6"
      id="ixv-105779"
      unitRef="pure">0.0105</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47263">2027-08-31</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47272">
     
       
     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_S000075973_Cid_C000235371"
      decimals="0"
      id="ixv-105780"
      unitRef="usd">107</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="0"
      id="ixv-105781"
      unitRef="usd">469</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="0"
      id="ixv-105782"
      unitRef="usd">884</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075973_Cid_C000235371"
      decimals="0"
      id="ixv-105783"
      unitRef="usd">2042</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47329">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47334">
     
       
     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 
       
     
       
       
       80 
       
       
     % of the average value of its portfolio. 
       
    
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    <oef:StrategyHeading
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     Principal Investment Strategies 
       
    
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    <oef:StrategyNarrativeTextBlock
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     &#x2022;&#160; Normally investing at least 80% of its assets in equity securities of companies that Fidelity Management &amp; Research Company LLC (FMR) (the Adviser) believes are working to: (i)&#160;extend and/or improve life expectancy, enhance health and wellness in people's lives, and/or (ii)&#160;mitigate environmental impacts affecting health and wellness, in each case through the products, services, or technology they provide. Such companies include those that (i)&#160;attribute 50% or more of their revenues to products focused on disease treatment, health care access, nutrition, fitness and wearables, clean emissions, dwelling-related property and casualty insurance, life and health insurance, or retirement financial security, or (ii)&#160;with respect to seeking to mitigate environmental impacts, those that are contained in the MSCI World Health &amp; Wellness Select Index. 
     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 securities of domestic and foreign issuers. 
      Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments. 
      Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information. 
      
    
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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
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      Sustainability Risk. 
      
     Application of Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) environmental, social and governance (ESG)  
       rating process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG  
       rating process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices. 
    
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      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. 
    
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    <oef:RiskTextBlock
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      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. 
    
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    <oef:RiskTextBlock
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      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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    <oef:RiskTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO_RiskMember_SmallAndMidCapInvestingMember"
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      Small- and Mid-Cap Investing. 
      
     The value of securities of small to 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
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      Management Risk. 
      
     The Adviser's application of the fund's strategy criteria may not achieve its intended results. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies . 
    
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    <oef:RiskTextBlock
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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. 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075973_contentCd_HWF-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
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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>
    <oef:RiskTextBlock
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     &#160; 
       
     You could lose money by investing in the fund. 
       
    
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     Performance 
       
    
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    <oef:PerformanceNarrativeTextBlock
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     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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    <oef:PerformanceInformationIllustratesVariabilityOfReturns
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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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    <oef:PerformancePastDoesNotIndicateFuture
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      Past performance (before and after taxes) is not an indication of future performance. 
        
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    <oef:PerformanceAvailabilityWebSiteAddress
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      www.fidelity.com  
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     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
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      decimals="INF"
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      unitRef="pure">0.1885</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235371_2024"
      decimals="INF"
      id="ixv-105786"
      unitRef="pure">0.1715</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075973_Cid_C000235371_2025"
      decimals="INF"
      id="ixv-105787"
      unitRef="pure">0.0755</oef:AnnlRtrPct>
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          &#160;&#160;&#160;Highest Quarter Return
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    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      decimals="4"
      id="ixv-105788"
      unitRef="pure">0.0936</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47599">2024-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
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          &#160;&#160;&#160;Lowest Quarter Return
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    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
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      id="ixv-105789"
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    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
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    <oef:YearToDateReturnLabel
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          &#160;&#160;&#160;Year-to-Date Return
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    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      decimals="4"
      id="ixv-105790"
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    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000075973_contentCd_HWF-PRO"
      id="ixv-47631">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
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     Average Annual Returns 
       
    
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      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
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      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. 
        
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    <oef:PerformanceTableNotRelevantToTaxDeferred
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      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). 
        
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    <oef:PerformanceTableExplanationAfterTaxHigher
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      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. 
        
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         Return Before Taxes
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         Return After Taxes on Distributions
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    <oef:AvgAnnlRtrPct
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         MSCI World Health &amp; Wellness Select Index
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    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075973_Cid_C000235371" id="ixv-47786">2022-05-24</oef:AnnualReturnInceptionDate>
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        <link:footnote id="footnoteS000065255WLF-PROAOE_A" xlink:label="footnoteS000065255WLF-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 style="font-family:Arial; font-size:8.5pt; font-style:italic">The management fee comprises a basic fee, which may vary by class, that is adjusted up or down by</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">a maximum of 0.10%</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">based on the performance of the fund or a designated class of the fund relative to that of the Russell 3000&#xae; Index. Please see "Fund Services - Fund Management - Advisory Fee(s)" for additional information.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:footnote id="footnoteAWLF-PROS000065255SHF_B" xlink:label="footnoteAWLF-PROS000065255SHF_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="#footnoteS000065255AWLF-PROAOE_AC000211262_MF"
          xlink:label="footnoteS000065255AWLF-PROAOE_AC000211262_MF"
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        <link:footnote id="footnoteS000065255AWLF-PROAOE_A" xlink:label="footnoteS000065255AWLF-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 style="font-family:Arial; font-size:8.5pt">The management fee comprises a basic fee, which may vary by class, that is adjusted up or down by</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">a maximum of 0.10%</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">based on the performance of the fund or a designated class of the fund relative to that of the Russell 3000&#xae; Index. Please see "Fund Services - Fund Management - Advisory Fee(s)" for additional information.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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          xlink:href="#footnoteS000065255AWLF-PROAOE_AC000211261_MF"
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        <link:loc
          xlink:href="#footnoteS000065255AWLF-PROAOE_AC000211263_MF"
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        <link:loc
          xlink:href="#footnoteS000065255AWLF-PROAOE_AC000211259_MF"
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        <link:loc
          xlink:href="#footnoteS000065255AWLF-PROAOE_AC000211258_MF"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000065255AWLF-PROAOE_AC000211258_MF"
          xlink:to="footnoteS000065255AWLF-PROAOE_A"
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        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_A_RBT_loc"
          xlink:label="footnoteAWLF-PROS000065255AAR_A_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAWLF-PROS000065255AAR_A" xlink:label="footnoteAWLF-PROS000065255AAR_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">May 1, 2019</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="footnoteAWLF-PROS000065255AAR_A_RBT_loc"
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        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_A_ATD_loc"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_A_ATDS_loc"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAWLF-PROS000065255AAR_A_ATDS_loc"
          xlink:to="footnoteAWLF-PROS000065255AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_B_RBT_loc"
          xlink:label="footnoteAWLF-PROS000065255AAR_B_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAWLF-PROS000065255AAR_B" xlink:label="footnoteAWLF-PROS000065255AAR_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">May 1, 2019</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="footnoteAWLF-PROS000065255AAR_B_RBT_loc"
          xlink:to="footnoteAWLF-PROS000065255AAR_B"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_C_RBT_loc"
          xlink:label="footnoteAWLF-PROS000065255AAR_C_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAWLF-PROS000065255AAR_C" xlink:label="footnoteAWLF-PROS000065255AAR_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">May 1, 2019</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="footnoteAWLF-PROS000065255AAR_C_RBT_loc"
          xlink:to="footnoteAWLF-PROS000065255AAR_C"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_D_RBT_loc"
          xlink:label="footnoteAWLF-PROS000065255AAR_D_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAWLF-PROS000065255AAR_D" xlink:label="footnoteAWLF-PROS000065255AAR_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">May 1, 2019</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="footnoteAWLF-PROS000065255AAR_D_RBT_loc"
          xlink:to="footnoteAWLF-PROS000065255AAR_D"
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        <link:loc
          xlink:href="#footnoteAWLF-PROS000065255AAR_E_RBT_loc"
          xlink:label="footnoteAWLF-PROS000065255AAR_E_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAWLF-PROS000065255AAR_E" xlink:label="footnoteAWLF-PROS000065255AAR_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">May 1, 2019</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="footnoteAWLF-PROS000065255AAR_E_RBT_loc"
          xlink:to="footnoteAWLF-PROS000065255AAR_E"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteASDH-PROS000042758SHF_AC000132246"
          xlink:label="footnoteASDH-PROS000042758SHF_AC000132246"
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        <link:footnote id="footnoteASDH-PROS000042758SHF_A" xlink:label="footnoteASDH-PROS000042758SHF_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>
        <link:footnoteArc
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          xlink:from="footnoteASDH-PROS000042758SHF_AC000132246"
          xlink:to="footnoteASDH-PROS000042758SHF_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteASDH-PROS000042758SHF_AC000132247"
          xlink:label="footnoteASDH-PROS000042758SHF_AC000132247"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteASDH-PROS000042758SHF_AC000132247"
          xlink:to="footnoteASDH-PROS000042758SHF_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteASDH-PROS000042758SHF_BC000132248"
          xlink:label="footnoteASDH-PROS000042758SHF_BC000132248"
          xlink:type="locator"/>
        <link:footnote id="footnoteASDH-PROS000042758SHF_B" xlink:label="footnoteASDH-PROS000042758SHF_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>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteASDH-PROS000042758SHF_BC000132248"
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        <link:loc
          xlink:href="#footnoteS000042758ASDH-PROAOE_AC000132246_FW"
          xlink:label="footnoteS000042758ASDH-PROAOE_AC000132246_FW"
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        <link:footnote id="footnoteS000042758ASDH-PROAOE_A" xlink:label="footnoteS000042758ASDH-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 Management &amp; Research Company LLC (FMR) has contractually agreed to reimburse Class A, Class M, Class C, and Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, fees and expenses of the Independent Trustees, 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 1.00%, 1.00%, 1.75%, and 0.66% (the Expense Caps). If at any time during the current fiscal year expenses for Class A, Class M, Class C, or Class Z of the fund fall below the Expense Caps, FMR 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">August 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">. FMR 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:loc
          xlink:href="#footnoteS000042758ASDH-PROAOE_AC000132247_FW"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000042758ASDH-PROAOE_AC000132248_FW"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000042758ASDH-PROAOE_AC000205018_FW"
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        <link:footnoteArc
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          xlink:from="footnoteS000042758ASDH-PROAOE_AC000205018_FW"
          xlink:to="footnoteS000042758ASDH-PROAOE_A"
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        <link:loc
          xlink:href="#footnoteASDH-PROS000042758AAR_A_RBT_loc"
          xlink:label="footnoteASDH-PROS000042758AAR_A_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteASDH-PROS000042758AAR_A" xlink:label="footnoteASDH-PROS000042758AAR_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">October 2, 2018</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="footnoteASDH-PROS000042758AAR_A_RBT_loc"
          xlink:to="footnoteASDH-PROS000042758AAR_A"
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        <link:loc
          xlink:href="#footnoteS000031534FSH-PROAOE_AC000098085_AF"
          xlink:label="footnoteS000031534FSH-PROAOE_AC000098085_AF"
          xlink:type="locator"/>
        <link:footnote id="footnoteS000031534FSH-PROAOE_A" xlink:label="footnoteS000031534FSH-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">Includes interest expense of certain underlying</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">&#xae; funds. Excluding interest expense of the applicable underlying Fidelity </xhtml:span><xhtml:span
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      style="font-family:Arial; font-size:7pt; ">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">funds, </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="footnoteS000031534FSH-PROAOE_B" xlink:label="footnoteS000031534FSH-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">The fund may invest in a business development company (BDC) advised by Fidelity Management &amp; Research Company LLC (FMR) or its affiliates. FMR has contractually agreed to waive its management fee or reimburse the fund, as applicable, with respect to the portion of the fund's assets invested in such BDC. This arrangement is in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">August 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">.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; font-style:italic; ">FMR 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
          xlink:href="#footnoteAGHI-PROS000017690SHF_AC000206227"
          xlink:label="footnoteAGHI-PROS000017690SHF_AC000206227"
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        <link:footnote id="footnoteAGHI-PROS000017690SHF_A" xlink:label="footnoteAGHI-PROS000017690SHF_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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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
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        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690SHF_AC000206223"
          xlink:label="footnoteAGHI-PROS000017690SHF_AC000206223"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAGHI-PROS000017690SHF_AC000206223"
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        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690SHF_BC000206224"
          xlink:label="footnoteAGHI-PROS000017690SHF_BC000206224"
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        <link:footnote id="footnoteAGHI-PROS000017690SHF_B" xlink:label="footnoteAGHI-PROS000017690SHF_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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          xlink:from="footnoteAGHI-PROS000017690SHF_BC000206224"
          xlink:to="footnoteAGHI-PROS000017690SHF_B"
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206227_AF"
          xlink:label="footnoteS000017690AGHI-PROAOE_AC000206227_AF"
          xlink:type="locator"/>
        <link:footnote id="footnoteS000017690AGHI-PROAOE_A" xlink:label="footnoteS000017690AGHI-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">Includes interest expense of certain underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds. Excluding interest expense of the applicable underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds, total annual operating expenses are </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; ">0.96%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">, </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; ">0.96%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">, 1.</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; ">71%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">, 0.</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; ">71%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">, and 0.</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; ">61%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt"> for Class A, Class M, Class C, Class I, and Class Z, respectively.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206223_AF"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206224_AF"
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206225_AF"
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206226_AF"
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206227_TE"
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        <link:footnoteArc
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        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206223_TE"
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          xlink:type="locator"/>
        <link:footnoteArc
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          xlink:from="footnoteS000017690AGHI-PROAOE_AC000206223_TE"
          xlink:to="footnoteS000017690AGHI-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206224_TE"
          xlink:label="footnoteS000017690AGHI-PROAOE_AC000206224_TE"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000017690AGHI-PROAOE_AC000206224_TE"
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          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206225_TE"
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          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000017690AGHI-PROAOE_AC000206225_TE"
          xlink:to="footnoteS000017690AGHI-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000017690AGHI-PROAOE_AC000206226_TE"
          xlink:label="footnoteS000017690AGHI-PROAOE_AC000206226_TE"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000017690AGHI-PROAOE_AC000206226_TE"
          xlink:to="footnoteS000017690AGHI-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_A_RBT_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_A_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAGHI-PROS000017690AAR_A" xlink:label="footnoteAGHI-PROS000017690AAR_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">December 4, 2018</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="footnoteAGHI-PROS000017690AAR_A_RBT_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_A_ATD_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_A_ATD_loc"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAGHI-PROS000017690AAR_A_ATD_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_A_ATDS_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_A_ATDS_loc"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAGHI-PROS000017690AAR_A_ATDS_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_B_RBT_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_B_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAGHI-PROS000017690AAR_B" xlink:label="footnoteAGHI-PROS000017690AAR_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">December 4, 2018</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="footnoteAGHI-PROS000017690AAR_B_RBT_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_B"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_C_RBT_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_C_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAGHI-PROS000017690AAR_C" xlink:label="footnoteAGHI-PROS000017690AAR_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">December 4, 2018</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="footnoteAGHI-PROS000017690AAR_C_RBT_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_C"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_D_RBT_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_D_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAGHI-PROS000017690AAR_D" xlink:label="footnoteAGHI-PROS000017690AAR_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">December 4, 2018</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="footnoteAGHI-PROS000017690AAR_D_RBT_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_D"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAGHI-PROS000017690AAR_E_RBT_loc"
          xlink:label="footnoteAGHI-PROS000017690AAR_E_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAGHI-PROS000017690AAR_E" xlink:label="footnoteAGHI-PROS000017690AAR_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">December 4, 2018</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="footnoteAGHI-PROS000017690AAR_E_RBT_loc"
          xlink:to="footnoteAGHI-PROS000017690AAR_E"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000007495CAI-SPH-PROAOE_AC000020469_AF"
          xlink:label="footnoteS000007495CAI-SPH-PROAOE_AC000020469_AF"
          xlink:type="locator"/>
        <link:footnote id="footnoteS000007495CAI-SPH-PROAOE_A" xlink:label="footnoteS000007495CAI-SPH-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">Includes interest expense of certain underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds. Excluding interest expense of the applicable underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds, total annual operating expenses after fee waiver and/or expense reimbursement are 0.</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; ">66%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
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        <link:loc
          xlink:href="#footnoteS000007495CAI-SPH-PROAOE_AC000020469_TW"
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          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000007495CAI-SPH-PROAOE_AC000020469_TW"
          xlink:to="footnoteS000007495CAI-SPH-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000007495CAI-SPH-PROAOE_BC000020469_FW"
          xlink:label="footnoteS000007495CAI-SPH-PROAOE_BC000020469_FW"
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        <link:footnote id="footnoteS000007495CAI-SPH-PROAOE_B" xlink:label="footnoteS000007495CAI-SPH-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">The fund may invest in a business development company (BDC) advised by Fidelity Management &amp; Research Company LLC (FMR) or its affiliates. FMR has contractually agreed to waive its management fee or reimburse the fund, as applicable, with respect to the portion of the fund's assets invested in such BDC. This arrangement is in effect through </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">August 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">.</xhtml:span><xhtml:span> </xhtml:span><xhtml:span
      class="redlineClass"
      style="font-family:Arial; font-size:8.5pt; ">FMR 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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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
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        <link:loc
          xlink:href="#footnoteS000017689CAI-SPH-PROAOE_AC000048885_FW"
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        <link:footnote id="footnoteS000017689CAI-SPH-PROAOE_A" xlink:label="footnoteS000017689CAI-SPH-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 Management &amp; Research Company LLC (FMR) has contractually agreed to reimburse the fund to the extent that total operating expenses (excluding interest, certain taxes, fees and expenses of the Independent Trustees, 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 0.75% (the Expense Cap). If at any time during the current fiscal year expenses for the fund fall below the Expense Cap, FMR 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">August 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; ">2027</xhtml:span><xhtml:span> </xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">. FMR 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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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000017689CAI-SPH-PROAOE_AC000048885_FW"
          xlink:to="footnoteS000017689CAI-SPH-PROAOE_A"
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        <link:loc
          xlink:href="#footnoteS000017690CAI-SPH-PROAOE_AC000048886_AF"
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        <link:footnote id="footnoteS000017690CAI-SPH-PROAOE_A" xlink:label="footnoteS000017690CAI-SPH-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">Includes interest expense of certain underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds. Excluding interest expense of the applicable underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">funds, total annual operating expenses are 0.</xhtml:span><xhtml:span class="delClass" style="color:#ff0000; display:none;"> 
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      style="font-family:Arial; font-size:8.5pt; ">67%</xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt">.</xhtml:span><xhtml:span> </xhtml:span></xhtml:div></link:footnote>
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        <link:loc
          xlink:href="#footnoteS000017690CAI-SPH-PROAOE_AC000048886_TE"
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          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000017690CAI-SPH-PROAOE_AC000048886_TE"
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        <link:loc
          xlink:href="#footnoteS000071838SAH-PROAOE_AC000227362_AF"
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        <link:footnote id="footnoteS000071838SAH-PROAOE_A" xlink:label="footnoteS000071838SAH-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">Includes interest expense of certain underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">funds. Excluding interest expense of the applicable underlying Fidelity</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:7pt">&#xae;</xhtml:span><xhtml:span> </xhtml:span><xhtml:span style="font-family:Arial; font-size:8.5pt; font-style:italic">funds, total annual operating expenses are 0.</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; ">57%</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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        <link:loc
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        <link:footnoteArc
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        <link:loc
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        <link:footnote id="footnoteSAH-PROS000071838AAR_A" xlink:label="footnoteSAH-PROS000071838AAR_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">May 13, 2021</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="#footnoteSAH-PROS000071838AAR_A_ATD_loc"
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        <link:loc
          xlink:href="#footnoteSAH-PROS000071838AAR_A_ATDS_loc"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteSAH-PROS000071838AAR_A_ATDS_loc"
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        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973SHF_AC000235373"
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        <link:footnote id="footnoteAHWF-PROS000075973SHF_A" xlink:label="footnoteAHWF-PROS000075973SHF_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">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>
        <link:footnoteArc
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          xlink:from="footnoteAHWF-PROS000075973SHF_AC000235373"
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        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973SHF_AC000235372"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAHWF-PROS000075973SHF_AC000235372"
          xlink:to="footnoteAHWF-PROS000075973SHF_A"
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        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973SHF_BC000235374"
          xlink:label="footnoteAHWF-PROS000075973SHF_BC000235374"
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        <link:footnote id="footnoteAHWF-PROS000075973SHF_B" xlink:label="footnoteAHWF-PROS000075973SHF_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; font-style:italic">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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          xlink:from="footnoteAHWF-PROS000075973SHF_BC000235374"
          xlink:to="footnoteAHWF-PROS000075973SHF_B"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000075973AHWF-PROAOE_AC000235373_FW"
          xlink:label="footnoteS000075973AHWF-PROAOE_AC000235373_FW"
          xlink:type="locator"/>
        <link:footnote id="footnoteS000075973AHWF-PROAOE_A" xlink:label="footnoteS000075973AHWF-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 Management &amp; Research Company LLC (FMR) 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, fees and expenses of the Independent Trustees, 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 1.30%, 1.55%, 2.05%, 1.05%, and 0.90% (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, FMR 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; font-style:italic">August 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; font-style:italic">. FMR 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>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000075973AHWF-PROAOE_AC000235373_FW"
          xlink:to="footnoteS000075973AHWF-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000075973AHWF-PROAOE_AC000235372_FW"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000075973AHWF-PROAOE_AC000235372_FW"
          xlink:to="footnoteS000075973AHWF-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000075973AHWF-PROAOE_AC000235374_FW"
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          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000075973AHWF-PROAOE_AC000235374_FW"
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          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000075973AHWF-PROAOE_AC000235370_FW"
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          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000075973AHWF-PROAOE_AC000235370_FW"
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          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteS000075973AHWF-PROAOE_AC000235369_FW"
          xlink:label="footnoteS000075973AHWF-PROAOE_AC000235369_FW"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteS000075973AHWF-PROAOE_AC000235369_FW"
          xlink:to="footnoteS000075973AHWF-PROAOE_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_A_RBT_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_A_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAHWF-PROS000075973AAR_A" xlink:label="footnoteAHWF-PROS000075973AAR_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">May 24, 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="footnoteAHWF-PROS000075973AAR_A_RBT_loc"
          xlink:to="footnoteAHWF-PROS000075973AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_A_ATD_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_A_ATD_loc"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAHWF-PROS000075973AAR_A_ATD_loc"
          xlink:to="footnoteAHWF-PROS000075973AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_A_ATDS_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_A_ATDS_loc"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="footnoteAHWF-PROS000075973AAR_A_ATDS_loc"
          xlink:to="footnoteAHWF-PROS000075973AAR_A"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_B_RBT_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_B_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAHWF-PROS000075973AAR_B" xlink:label="footnoteAHWF-PROS000075973AAR_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">May 24, 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="footnoteAHWF-PROS000075973AAR_B_RBT_loc"
          xlink:to="footnoteAHWF-PROS000075973AAR_B"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_C_RBT_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_C_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAHWF-PROS000075973AAR_C" xlink:label="footnoteAHWF-PROS000075973AAR_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">May 24, 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="footnoteAHWF-PROS000075973AAR_C_RBT_loc"
          xlink:to="footnoteAHWF-PROS000075973AAR_C"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#footnoteAHWF-PROS000075973AAR_D_RBT_loc"
          xlink:label="footnoteAHWF-PROS000075973AAR_D_RBT_loc"
          xlink:type="locator"/>
        <link:footnote id="footnoteAHWF-PROS000075973AAR_D" xlink:label="footnoteAHWF-PROS000075973AAR_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">May 24, 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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