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    <dei:EntityRegistrantName contextRef="Trust" id="ixv-76503">Fidelity Advisor Series I</dei:EntityRegistrantName>
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    <oef:MaterialFundChngNoticeTextBlock contextRef="C000177521_ClassMember" id="ixv-108">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000177521_ClassMember" id="ixv-119">Fidelity Advisor&#xae; Value Fund</oef:FundName>
    <oef:ClassName contextRef="C000177521_ClassMember" id="ixv-122">Fidelity Advisor&#xae; Value Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000177521_ClassMember" id="ixv-126">FVLZX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000177521_ClassMember" id="ixv-145">This annual shareholder report contains information about Fidelity Advisor&#xae; Value Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000177521_ClassMember" id="ixv-147">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000177521_ClassMember" id="ixv-152">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000177521_ClassMember" id="ixv-154">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000177521_ClassMember" id="ixv-157">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000177521_ClassMember" id="ixv-160">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000177521_ClassMember" id="ixv-167">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;87&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.75&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
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    <oef:FactorsAffectingPerfTextBlock contextRef="C000177521_ClassMember" id="ixv-209">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. equities posted a strong advance for the 12 months ending October 31, 2024, driven by a resilient economy, the promise of artificial intelligence to drive transformative change and the Federal Reserve's long-anticipated pivot to cutting interest rates.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the Russell Midcap Value Index for the fiscal year, particularly within the consumer durables &amp;amp; apparel industry of the consumer discretionary sector. Stock picking in financials, primarily within the financial services industry, also hampered the fund's result, as did picks and an overweight in energy.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our non-benchmark stake in Constellium (-29%), a stock that was among our largest holdings this period. A second notable relative detractor was an overweight in Antero Resources (-13%), which was also one of the fund's largest holdings, though we reduced the position by period end. An overweight in Concentrix (-43%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock picking in real estate. Picks in utilities and information technology, primarily within the technology hardware &amp;amp; equipment industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Constellation Energy (+130%). The stock was the fund's largest holding this period, but we decreased the position by period end. A non-benchmark stake in Compass gained approximately 221% and was a second notable relative contributor. Another relative contributor was our non-benchmark stake in Targa Resources (+103%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer staples and health care sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000177521_ClassMember" id="ixv-233">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
February 1, 2017 through October 31, 2024.
Initial investment of $10,000.
Class Z


$10,000

$10,891


$10,416


$11,400


$10,734


$17,805


$16,584


$16,773



Russell Midcap&#xae; Value Index


$10,000

$10,684


$10,701


$11,780


$10,963


$16,290


$14,633


$14,111



Russell 3000&#xae; Index


$10,000

$11,422


$12,175


$13,818


$15,220


$21,902


$18,284


$19,816



&#160;

2017

2018

2019

2020

2021

2022

2023

2024









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      id="ixv-289">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell Midcap&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
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      id="ixv-86298"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86299"
      unitRef="usd">10684</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86300"
      unitRef="usd">10701</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86301"
      unitRef="usd">11780</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86302"
      unitRef="usd">10963</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86303"
      unitRef="usd">16290</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86304"
      unitRef="usd">14633</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86305"
      unitRef="usd">14111</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000177521_LG_2_AdditionalIndexMember_8YR"
      id="ixv-326">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86306"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86307"
      unitRef="usd">11422</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86308"
      unitRef="usd">12175</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86309"
      unitRef="usd">13818</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86310"
      unitRef="usd">15220</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86311"
      unitRef="usd">21902</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86312"
      unitRef="usd">18284</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000177521_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86313"
      unitRef="usd">19816</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000177521_ClassMember" id="ixv-403">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

31.21%

14.06%

10.71%


Russell Midcap&#xae; Value Index

34.03%


9.93%


8.57%


Russell 3000&#xae; Index

37.86%


14.60%


13.84%




A&#160; &#160;From February 1, 2017

Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-86314"
      unitRef="pure">0.3121</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-86315"
      unitRef="pure">0.1406</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_NoLoadClassMember_2023-11-01_2024-10-31"
      decimals="INF"
      id="ixv-86316"
      unitRef="pure">0.1071</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-86317"
      unitRef="pure">0.3403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-86318"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-86319"
      unitRef="pure">0.0857</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86320"
      unitRef="pure">0.3786</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86321"
      unitRef="pure">0.1460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000177521_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-86322"
      unitRef="pure">0.1384</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate contextRef="C000177521_ClassMember" id="ixv-472">2017-02-01</oef:PerfInceptionDate>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000177521_ClassMember" id="ixv-489">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000177521_ClassMember" id="ixv-493">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000177521_ClassMember" id="ixv-499">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;380,025,415&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;268&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,906,123&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000177521_InstantMember"
      decimals="0"
      id="ixv-86323"
      unitRef="usd">380025415</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000177521_InstantMember"
      decimals="INF"
      id="ixv-86324"
      unitRef="holding">268</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000177521_ClassMember"
      decimals="0"
      id="ixv-86325"
      unitRef="usd">2906123</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000177521_ClassMember"
      decimals="INF"
      id="ixv-86326"
      unitRef="pure">0.80</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000177521_ClassMember" id="ixv-574">
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

19.2

&#160;


Financials

16.7

&#160;


Consumer Discretionary

10.3

&#160;


Materials

10.3

&#160;


Energy

9.2

&#160;


Health Care

8.8

&#160;


Utilities

6.9

&#160;


Real Estate

5.3

&#160;


Consumer Staples

5.2

&#160;


Information Technology

4.3

&#160;


Communication Services

2.8

&#160;


&#160;




Common Stocks

99.0


Short-Term Investments and Net Other Assets (Liabilities)

1.0




ASSET ALLOCATION (% of Fund's net assets)









United States

86.3


Canada

6.0


United Kingdom

1.2


Germany

1.1


Puerto Rico

0.6


Belgium

0.6


Zambia

0.6


India

0.5


France

0.5


Others

2.6




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000177521_MS_IndustrialSectorMember"
      decimals="INF"
      id="ixv-86327"
      unitRef="pure">0.192</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-86328"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-86329"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-86330"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-86331"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_HealthcareSectorMember"
      decimals="INF"
      id="ixv-86332"
      unitRef="pure">0.088</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-86333"
      unitRef="pure">0.069</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-86334"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-86335"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-86336"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-86337"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-86338"
      unitRef="pure">0.990</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-86339"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_US_Member"
      decimals="INF"
      id="ixv-86340"
      unitRef="pure">0.863</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_CA_Member"
      decimals="INF"
      id="ixv-86341"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_GB_Member"
      decimals="INF"
      id="ixv-86342"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_DE_Member"
      decimals="INF"
      id="ixv-86343"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_PR_Member"
      decimals="INF"
      id="ixv-86344"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_BE_Member"
      decimals="INF"
      id="ixv-86345"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_ZM_Member"
      decimals="INF"
      id="ixv-86346"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_IN_Member"
      decimals="INF"
      id="ixv-86347"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_FR_Member"
      decimals="INF"
      id="ixv-86348"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_GD_Other_Member"
      decimals="INF"
      id="ixv-86349"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000177521_ClassMember" id="ixv-810">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


PG&amp;E Corp

1.2


&#160;


Vistra Corp

1.2


&#160;


Ventas Inc

1.0


&#160;


Global Payments Inc

1.0


&#160;


Molina Healthcare Inc

0.9


&#160;


Smurfit WestRock PLC

0.9


&#160;


Lithia Motors Inc Class A

0.9


&#160;


Lumentum Holdings Inc

0.8


&#160;


International Paper Co

0.8


&#160;


Lamb Weston Holdings Inc

0.8


&#160;


&#160;

9.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-86350"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_1_Member"
      decimals="INF"
      id="ixv-86351"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_2_Member"
      decimals="INF"
      id="ixv-86352"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_3_Member"
      decimals="INF"
      id="ixv-86353"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_4_Member"
      decimals="INF"
      id="ixv-86354"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_5_Member"
      decimals="INF"
      id="ixv-86355"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_6_Member"
      decimals="INF"
      id="ixv-86356"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_7_Member"
      decimals="INF"
      id="ixv-86357"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_8_Member"
      decimals="INF"
      id="ixv-86358"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000177521_TH_9_Member"
      decimals="INF"
      id="ixv-86359"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000177521_ClassMember" id="ixv-935">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000177521_ClassMember" id="ixv-941">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000177521_ClassMember" id="ixv-945">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000177521_ClassMember" id="ixv-948">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000177521_ClassMember" id="ixv-952">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000177521_ClassMember" id="ixv-963">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-1021">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048868_ClassMember" id="ixv-1025">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048868_ClassMember" id="ixv-1036">Fidelity Advisor&#xae; High Income Advantage Fund</oef:FundName>
    <oef:ClassName contextRef="C000048868_ClassMember" id="ixv-1039">Fidelity Advisor&#xae; High Income Advantage Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048868_ClassMember" id="ixv-1043">FAHEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048868_ClassMember" id="ixv-1062">This annual shareholder report contains information about Fidelity Advisor&#xae; High Income Advantage Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048868_ClassMember" id="ixv-1064">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048868_ClassMember" id="ixv-1069">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048868_ClassMember" id="ixv-1071">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048868_ClassMember" id="ixv-1074">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048868_ClassMember" id="ixv-1077">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048868_ClassMember" id="ixv-1084">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;187&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.72&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048868_ClassMember"
      decimals="0"
      id="ixv-86360"
      unitRef="usd">187</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048868_ClassMember"
      decimals="INF"
      id="ixv-86361"
      unitRef="pure">0.0172</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048868_ClassMember" id="ixv-1126">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;High-yield bonds achieved a strong gain for the 12 months ending October 31, 2024, driven by a resilient economy and corporate profits, the perception that credit risk has fallen amid elevated coupon yields, and the expectation the Federal Reserve would pivot to cutting interest rates in late 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in high-yield bonds rose 16.67% and contributed to performance versus the benchmark, the ICE BofA US High Yield/US High Yield Constrained Blend Index, for the fiscal year.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, security selection was the primary contributor, led by technology &amp;amp; electronics. Our picks in energy and financial services also boosted the fund's relative result.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;A non-benchmark stake in Nvidia gained 224% and was the top individual relative contributor. The company was the fund's largest holding at period end. The second-largest relative contributor was an overweight in Vistra (+69%), also a sizable position. Another notable relative contributor was a non-benchmark stake in Meta Platforms (+89%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was the fund's position in cash. Security selection in banking hurt this period, as did our choices and an underweight in health care. Also hurting our result was security selection in consumer goods.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The fund's non-benchmark stake in UiPath returned about -51% and was the biggest individual relative detractor. The second-largest relative detractor this period was avoiding CommScope, a benchmark component that gained 74%. Another notable relative detractor was a non-benchmark stake in JPMorgan Chase (+9%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the banking industry and a higher allocation to technology &amp;amp; electronics.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048868_ClassMember" id="ixv-1153">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class C


$10,000

$9,930


$10,477


$11,725


$11,694


$12,466


$12,669


$15,323


$13,568


$14,269


$16,806



ICE&#xae; BofA&#xae; US High Yield Constrained Index


$10,000

$9,797


$10,795


$11,781


$11,883


$12,872


$13,187


$14,602


$12,932


$13,683


$15,939



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048868_LG_ClassMember_11YR" id="ixv-1172">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86362"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86363"
      unitRef="usd">9930</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86364"
      unitRef="usd">10477</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86365"
      unitRef="usd">11725</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86366"
      unitRef="usd">11694</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86367"
      unitRef="usd">12466</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86368"
      unitRef="usd">12669</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86369"
      unitRef="usd">15323</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86370"
      unitRef="usd">13568</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86371"
      unitRef="usd">14269</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86372"
      unitRef="usd">16806</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048868_LG_1_AdditionalIndexMember_11YR"
      id="ixv-1221">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;ICE&#xae; BofA&#xae; US High Yield Constrained Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86373"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86374"
      unitRef="usd">9797</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86375"
      unitRef="usd">10795</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86376"
      unitRef="usd">11781</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86377"
      unitRef="usd">11883</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86378"
      unitRef="usd">12872</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86379"
      unitRef="usd">13187</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86380"
      unitRef="usd">14602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86381"
      unitRef="usd">12932</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86382"
      unitRef="usd">13683</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86383"
      unitRef="usd">15939</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048868_LG_2_AdditionalIndexMember_11YR"
      id="ixv-1270">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86384"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86385"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86386"
      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86387"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86388"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86389"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86390"
      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86391"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86392"
      unitRef="usd">10641</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86393"
      unitRef="usd">10768</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048868_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86394"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048868_ClassMember" id="ixv-1368">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

16.04%

5.84%


5.33%


Class C

17.04%

5.84%

5.33%


ICE&#xae; BofA&#xae; US High Yield Constrained Index

16.49%


4.37%


4.77%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-86395"
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      id="ixv-86397"
      unitRef="pure">0.0533</oef:AvgAnnlRtrPct>
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      id="ixv-86398"
      unitRef="pure">0.1704</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="INF"
      id="ixv-86399"
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      id="ixv-86400"
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    <oef:AvgAnnlRtrPct
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      id="ixv-86401"
      unitRef="pure">0.1649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048868_0_AdditionalIndexMember_5YR"
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      id="ixv-86402"
      unitRef="pure">0.0437</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048868_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-86403"
      unitRef="pure">0.0477</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048868_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86404"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048868_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86405"
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    <oef:AvgAnnlRtrPct
      contextRef="C000048868_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-86406"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048868_ClassMember" id="ixv-1461">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048868_ClassMember" id="ixv-1465">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048868_ClassMember" id="ixv-1471">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,310,946,691&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;717&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,652,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;29&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="0"
      id="ixv-86407"
      unitRef="usd">2310946691</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048868_InstantMember"
      decimals="INF"
      id="ixv-86408"
      unitRef="holding">717</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-86410"
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    <oef:HoldingsTableTextBlock contextRef="C000048868_ClassMember" id="ixv-1546">
&#160;
BBB

4.8


BB

20.7


B

30.9


CCC,CC,C

6.6


Not Rated

2.9


Equities

22.3


Short-Term Investments and Net Other Assets (Liabilities)

11.8




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Corporate Bonds

51.5


Common Stocks

20.1


Bank Loan Obligations

10.1


Preferred Securities

4.1


Alternative Funds

2.2


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

11.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

91.1


Canada

1.9


United Kingdom

1.8


France

1.4


Netherlands

0.5


China

0.5


Luxembourg

0.4


Zambia

0.4


Taiwan

0.3


Others

1.7




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048868_ClassMember" id="ixv-1771">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


TransDigm Inc

2.6


&#160;


Fidelity Private Credit Company LLC

2.2


&#160;


Energy Transfer LP

2.1


&#160;


NVIDIA Corp

1.4


&#160;


Tenet Healthcare Corp

1.4


&#160;


LBM Acquisition LLC

1.2


&#160;


Altice France SA

1.1


&#160;


eG Global Finance PLC

1.1


&#160;


Carnival Corp

1.1


&#160;


Meta Platforms Inc Class A

1.1


&#160;


&#160;

15.3

&#160;



</oef:LargestHoldingsTableTextBlock>
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      id="ixv-86438"
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    <oef:PctOfNav
      contextRef="C000048868_TH_8_Member"
      decimals="INF"
      id="ixv-86443"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048868_TH_9_Member"
      decimals="INF"
      id="ixv-86444"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048868_ClassMember" id="ixv-1896">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048868_ClassMember" id="ixv-1902">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048868_ClassMember" id="ixv-1906">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048868_ClassMember" id="ixv-1909">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048868_ClassMember" id="ixv-1913">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048868_ClassMember" id="ixv-1924">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-1982">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048866_ClassMember" id="ixv-1986">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048866_ClassMember" id="ixv-1997">Fidelity Advisor&#xae; High Income Advantage Fund</oef:FundName>
    <oef:ClassName contextRef="C000048866_ClassMember" id="ixv-2000">Fidelity Advisor&#xae; High Income Advantage Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048866_ClassMember" id="ixv-2004">FAHDX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048866_ClassMember" id="ixv-2023">This annual shareholder report contains information about Fidelity Advisor&#xae; High Income Advantage Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048866_ClassMember" id="ixv-2025">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048866_ClassMember" id="ixv-2030">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048866_ClassMember" id="ixv-2032">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048866_ClassMember" id="ixv-2035">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048866_ClassMember" id="ixv-2038">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048866_ClassMember" id="ixv-2045">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;105&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.97&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048866_ClassMember"
      decimals="0"
      id="ixv-86445"
      unitRef="usd">105</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048866_ClassMember"
      decimals="INF"
      id="ixv-86446"
      unitRef="pure">0.0097</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048866_ClassMember" id="ixv-2087">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;High-yield bonds achieved a strong gain for the 12 months ending October 31, 2024, driven by a resilient economy and corporate profits, the perception that credit risk has fallen amid elevated coupon yields, and the expectation the Federal Reserve would pivot to cutting interest rates in late 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in high-yield bonds rose 16.67% and contributed to performance versus the benchmark, the ICE BofA US High Yield/US High Yield Constrained Blend Index, for the fiscal year.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, security selection was the primary contributor, led by technology &amp;amp; electronics. Our picks in energy and financial services also boosted the fund's relative result.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;A non-benchmark stake in Nvidia gained 224% and was the top individual relative contributor. The company was the fund's largest holding at period end. The second-largest relative contributor was an overweight in Vistra (+69%), also a sizable position. Another notable relative contributor was a non-benchmark stake in Meta Platforms (+89%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was the fund's position in cash. Security selection in banking hurt this period, as did our choices and an underweight in health care. Also hurting our result was security selection in consumer goods.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The fund's non-benchmark stake in UiPath returned about -51% and was the biggest individual relative detractor. The second-largest relative detractor this period was avoiding CommScope, a benchmark component that gained 74%. Another notable relative detractor was a non-benchmark stake in JPMorgan Chase (+9%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the banking industry and a higher allocation to technology &amp;amp; electronics.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048866_ClassMember" id="ixv-2114">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,600

$9,606


$10,211


$11,513


$11,571


$12,428


$12,728


$15,509


$13,841


$14,555


$17,144



ICE&#xae; BofA&#xae; US High Yield Constrained Index


$10,000

$9,797


$10,795


$11,781


$11,883


$12,872


$13,187


$14,602


$12,932


$13,683


$15,939



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048866_LG_ClassMember_11YR" id="ixv-2135">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86447"
      unitRef="usd">9600</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86448"
      unitRef="usd">9606</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86449"
      unitRef="usd">10211</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86450"
      unitRef="usd">11513</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86451"
      unitRef="usd">11571</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86452"
      unitRef="usd">12428</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86453"
      unitRef="usd">12728</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86454"
      unitRef="usd">15509</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86455"
      unitRef="usd">13841</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86456"
      unitRef="usd">14555</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86457"
      unitRef="usd">17144</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048866_LG_1_AdditionalIndexMember_11YR"
      id="ixv-2184">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;ICE&#xae; BofA&#xae; US High Yield Constrained Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86458"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86459"
      unitRef="usd">9797</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86460"
      unitRef="usd">10795</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86461"
      unitRef="usd">11781</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86462"
      unitRef="usd">11883</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86463"
      unitRef="usd">12872</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86464"
      unitRef="usd">13187</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86465"
      unitRef="usd">14602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86466"
      unitRef="usd">12932</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86467"
      unitRef="usd">13683</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86468"
      unitRef="usd">15939</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
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      id="ixv-2233">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2014"
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      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2015"
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      id="ixv-86470"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2016"
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      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86472"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
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      id="ixv-86473"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86474"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2020"
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      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86476"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86477"
      unitRef="usd">10641</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048866_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86478"
      unitRef="usd">10768</oef:AcctVal>
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    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048866_ClassMember" id="ixv-2331">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 4.00% sales charge) &#160;

13.07%

5.78%


5.54%


Class A (without 4.00% sales charge)

17.78%

6.64%

5.97%


ICE&#xae; BofA&#xae; US High Yield Constrained Index

16.49%


4.37%


4.77%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-86483"
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      id="ixv-86484"
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      id="ixv-86485"
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      id="ixv-86486"
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    <oef:AvgAnnlRtrPct
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      id="ixv-86487"
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      id="ixv-86488"
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      id="ixv-86489"
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      id="ixv-86490"
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      decimals="INF"
      id="ixv-86491"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048866_ClassMember" id="ixv-2423">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048866_ClassMember" id="ixv-2427">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048866_ClassMember" id="ixv-2433">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,310,946,691&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;717&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,652,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;29&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      contextRef="C000048866_InstantMember"
      decimals="0"
      id="ixv-86492"
      unitRef="usd">2310946691</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048866_InstantMember"
      decimals="INF"
      id="ixv-86493"
      unitRef="holding">717</oef:HoldingsCount>
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      id="ixv-86494"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-86495"
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    <oef:HoldingsTableTextBlock contextRef="C000048866_ClassMember" id="ixv-2508">
&#160;
BBB

4.8


BB

20.7


B

30.9


CCC,CC,C

6.6


Not Rated

2.9


Equities

22.3


Short-Term Investments and Net Other Assets (Liabilities)

11.8




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Corporate Bonds

51.5


Common Stocks

20.1


Bank Loan Obligations

10.1


Preferred Securities

4.1


Alternative Funds

2.2


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

11.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

91.1


Canada

1.9


United Kingdom

1.8


France

1.4


Netherlands

0.5


China

0.5


Luxembourg

0.4


Zambia

0.4


Taiwan

0.3


Others

1.7




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048866_ClassMember" id="ixv-2733">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


TransDigm Inc

2.6


&#160;


Fidelity Private Credit Company LLC

2.2


&#160;


Energy Transfer LP

2.1


&#160;


NVIDIA Corp

1.4


&#160;


Tenet Healthcare Corp

1.4


&#160;


LBM Acquisition LLC

1.2


&#160;


Altice France SA

1.1


&#160;


eG Global Finance PLC

1.1


&#160;


Carnival Corp

1.1


&#160;


Meta Platforms Inc Class A

1.1


&#160;


&#160;

15.3

&#160;



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      decimals="INF"
      id="ixv-86525"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048866_TH_6_Member"
      decimals="INF"
      id="ixv-86526"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048866_TH_7_Member"
      decimals="INF"
      id="ixv-86527"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048866_TH_8_Member"
      decimals="INF"
      id="ixv-86528"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048866_TH_9_Member"
      decimals="INF"
      id="ixv-86529"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048866_ClassMember" id="ixv-2858">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048866_ClassMember" id="ixv-2864">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048866_ClassMember" id="ixv-2868">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048866_ClassMember" id="ixv-2871">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048866_ClassMember" id="ixv-2875">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048866_ClassMember" id="ixv-2886">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-2944">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048863_ClassMember" id="ixv-2948">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048863_ClassMember" id="ixv-2959">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000048863_ClassMember" id="ixv-2962">Fidelity&#xae; Floating Rate High Income Fund</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048863_ClassMember" id="ixv-2966">FFRHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048863_ClassMember" id="ixv-2985">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048863_ClassMember" id="ixv-2987">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048863_ClassMember" id="ixv-2992">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048863_ClassMember" id="ixv-2994">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048863_ClassMember" id="ixv-2997">1-800-544-8544</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048863_ClassMember" id="ixv-3000">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048863_ClassMember" id="ixv-3007">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Floating Rate High Income Fund&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;70&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.66&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048863_ClassMember"
      decimals="0"
      id="ixv-86530"
      unitRef="usd">70</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048863_ClassMember"
      decimals="INF"
      id="ixv-86531"
      unitRef="pure">0.0066</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048863_ClassMember" id="ixv-3049">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048863_ClassMember" id="ixv-3076">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Fidelity&#xae; Floating Rate High Income Fund


$10,000

$9,964


$10,590


$11,088


$11,533


$11,870


$11,853


$12,988


$12,756


$14,158


$15,597



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$10,151


$10,824


$11,392


$11,936


$12,235


$12,491


$13,602


$13,349


$14,977


$16,603



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048863_LG_ClassMember_11YR" id="ixv-3095">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity&#xae; Floating Rate High Income Fund&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86532"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86533"
      unitRef="usd">9964</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86534"
      unitRef="usd">10590</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86535"
      unitRef="usd">11088</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86536"
      unitRef="usd">11533</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86537"
      unitRef="usd">11870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86538"
      unitRef="usd">11853</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86539"
      unitRef="usd">12988</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86540"
      unitRef="usd">12756</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86541"
      unitRef="usd">14158</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86542"
      unitRef="usd">15597</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048863_LG_1_AdditionalIndexMember_11YR"
      id="ixv-3144">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048863_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86543"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048863_1_AdditionalIndexMember_AsOf_2015"
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    <oef:AcctVal
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    <oef:LineGraphAndTableMeasureName
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      id="ixv-3193">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
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      unitRef="usd">10870</oef:AcctVal>
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      unitRef="usd">12576</oef:AcctVal>
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    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048863_ClassMember" id="ixv-3291">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Fidelity&#xae; Floating Rate High Income Fund

10.16%

5.61%

4.54%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.20%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit www.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048863_ClassMember" id="ixv-3368">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048863_ClassMember" id="ixv-3372">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048863_ClassMember" id="ixv-3378">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      id="ixv-86574"
      unitRef="usd">14682141753</us-gaap:AssetsNet>
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      id="ixv-86575"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-86577"
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    <oef:HoldingsTableTextBlock contextRef="C000048863_ClassMember" id="ixv-3453">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







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    <oef:LargestHoldingsTableTextBlock contextRef="C000048863_ClassMember" id="ixv-3678">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



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    <oef:PctOfNav
      contextRef="C000048863_TH_6_Member"
      decimals="INF"
      id="ixv-86608"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048863_TH_7_Member"
      decimals="INF"
      id="ixv-86609"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048863_TH_8_Member"
      decimals="INF"
      id="ixv-86610"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048863_TH_9_Member"
      decimals="INF"
      id="ixv-86611"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048863_ClassMember" id="ixv-3803">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-544-8544&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048863_ClassMember" id="ixv-3809">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-544-8544&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048863_ClassMember" id="ixv-3813">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048863_ClassMember" id="ixv-3816">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-544-8544&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048863_ClassMember" id="ixv-3820">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048863_ClassMember" id="ixv-3831">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-3889">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048862_ClassMember" id="ixv-3893">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048862_ClassMember" id="ixv-3904">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000048862_ClassMember" id="ixv-3907">Fidelity Advisor&#xae; Floating Rate High Income Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048862_ClassMember" id="ixv-3911">FFRIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048862_ClassMember" id="ixv-3930">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048862_ClassMember" id="ixv-3932">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048862_ClassMember" id="ixv-3937">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048862_ClassMember" id="ixv-3939">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048862_ClassMember" id="ixv-3942">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048862_ClassMember" id="ixv-3945">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048862_ClassMember" id="ixv-3952">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;72&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.68&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048862_ClassMember"
      decimals="0"
      id="ixv-86612"
      unitRef="usd">72</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048862_ClassMember"
      decimals="INF"
      id="ixv-86613"
      unitRef="pure">0.0068</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048862_ClassMember" id="ixv-3994">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048862_ClassMember" id="ixv-4021">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class I


$10,000

$9,970


$10,591


$11,083


$11,508


$11,839


$11,816


$12,942


$12,718


$14,097


$15,525



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$10,151


$10,824


$11,392


$11,936


$12,235


$12,491


$13,602


$13,349


$14,977


$16,603



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048862_LG_ClassMember_11YR" id="ixv-4040">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86614"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86615"
      unitRef="usd">9970</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86616"
      unitRef="usd">10591</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86617"
      unitRef="usd">11083</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86618"
      unitRef="usd">11508</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86619"
      unitRef="usd">11839</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86620"
      unitRef="usd">11816</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86621"
      unitRef="usd">12942</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86622"
      unitRef="usd">12718</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86623"
      unitRef="usd">14097</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86624"
      unitRef="usd">15525</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048862_LG_1_AdditionalIndexMember_11YR"
      id="ixv-4089">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048862_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86625"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048862_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86626"
      unitRef="usd">10151</oef:AcctVal>
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    <oef:LineGraphAndTableMeasureName
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      id="ixv-4138">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
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    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048862_ClassMember" id="ixv-4236">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

10.13%

5.57%

4.50%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.20%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
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    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048862_ClassMember" id="ixv-4313">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048862_ClassMember" id="ixv-4317">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048862_ClassMember" id="ixv-4323">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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    <oef:HoldingsTableTextBlock contextRef="C000048862_ClassMember" id="ixv-4398">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







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    <oef:LargestHoldingsTableTextBlock contextRef="C000048862_ClassMember" id="ixv-4623">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



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      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048862_TH_8_Member"
      decimals="INF"
      id="ixv-86692"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048862_TH_9_Member"
      decimals="INF"
      id="ixv-86693"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048862_ClassMember" id="ixv-4748">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048862_ClassMember" id="ixv-4754">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048862_ClassMember" id="ixv-4758">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048862_ClassMember" id="ixv-4761">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048862_ClassMember" id="ixv-4765">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048862_ClassMember" id="ixv-4776">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-4834">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048883_ClassMember" id="ixv-4838">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048883_ClassMember" id="ixv-4849">Fidelity Advisor&#xae; Value Fund</oef:FundName>
    <oef:ClassName contextRef="C000048883_ClassMember" id="ixv-4852">Fidelity Advisor&#xae; Value Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048883_ClassMember" id="ixv-4856">FVIFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048883_ClassMember" id="ixv-4875">This annual shareholder report contains information about Fidelity Advisor&#xae; Value Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048883_ClassMember" id="ixv-4877">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048883_ClassMember" id="ixv-4882">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048883_ClassMember" id="ixv-4884">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048883_ClassMember" id="ixv-4887">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048883_ClassMember" id="ixv-4890">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048883_ClassMember" id="ixv-4897">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.90&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048883_ClassMember"
      decimals="0"
      id="ixv-86694"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048883_ClassMember"
      decimals="INF"
      id="ixv-86695"
      unitRef="pure">0.0090</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048883_ClassMember" id="ixv-4939">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. equities posted a strong advance for the 12 months ending October 31, 2024, driven by a resilient economy, the promise of artificial intelligence to drive transformative change and the Federal Reserve's long-anticipated pivot to cutting interest rates.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the Russell Midcap Value Index for the fiscal year, particularly within the consumer durables &amp;amp; apparel industry of the consumer discretionary sector. Stock picking in financials, primarily within the financial services industry, also hampered the fund's result, as did picks and an overweight in energy.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our non-benchmark stake in Constellium (-29%), a stock that was among our largest holdings this period. A second notable relative detractor was an overweight in Antero Resources (-13%), which was also one of the fund's largest holdings, though we reduced the position by period end. An overweight in Concentrix (-43%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock picking in real estate. Picks in utilities and information technology, primarily within the technology hardware &amp;amp; equipment industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Constellation Energy (+130%). The stock was the fund's largest holding this period, but we decreased the position by period end. A non-benchmark stake in Compass gained approximately 221% and was a second notable relative contributor. Another relative contributor was our non-benchmark stake in Targa Resources (+103%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer staples and health care sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048883_ClassMember" id="ixv-4963">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class I


$10,000

$10,013


$10,295


$12,307


$11,755


$12,852


$12,087


$20,026


$18,626


$18,806


$24,643



Russell Midcap&#xae; Value Index


$10,000

$10,047


$10,834


$12,689


$12,710


$13,990


$13,020


$19,347


$17,379


$16,759


$22,463



Russell 3000&#xae; Index


$10,000

$10,449


$10,892


$13,504


$14,395


$16,337


$17,995


$25,894


$21,617


$23,429


$32,298



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048883_LG_ClassMember_11YR" id="ixv-4982">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86696"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86697"
      unitRef="usd">10013</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86698"
      unitRef="usd">10295</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86699"
      unitRef="usd">12307</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86700"
      unitRef="usd">11755</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86701"
      unitRef="usd">12852</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86702"
      unitRef="usd">12087</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86703"
      unitRef="usd">20026</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86704"
      unitRef="usd">18626</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86705"
      unitRef="usd">18806</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86706"
      unitRef="usd">24643</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048883_LG_1_AdditionalIndexMember_11YR"
      id="ixv-5031">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell Midcap&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86707"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86708"
      unitRef="usd">10047</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86709"
      unitRef="usd">10834</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86710"
      unitRef="usd">12689</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86711"
      unitRef="usd">12710</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86712"
      unitRef="usd">13990</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86713"
      unitRef="usd">13020</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86714"
      unitRef="usd">19347</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86715"
      unitRef="usd">17379</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86716"
      unitRef="usd">16759</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86717"
      unitRef="usd">22463</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048883_LG_2_AdditionalIndexMember_11YR"
      id="ixv-5080">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86718"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86719"
      unitRef="usd">10449</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86720"
      unitRef="usd">10892</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86721"
      unitRef="usd">13504</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86722"
      unitRef="usd">14395</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86723"
      unitRef="usd">16337</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86724"
      unitRef="usd">17995</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86725"
      unitRef="usd">25894</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86726"
      unitRef="usd">21617</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86727"
      unitRef="usd">23429</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048883_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86728"
      unitRef="usd">32298</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048883_ClassMember" id="ixv-5178">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

31.04%

13.90%

9.44%


Russell Midcap&#xae; Value Index

34.03%


9.93%


8.43%


Russell 3000&#xae; Index

37.86%


14.60%


12.44%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-86729"
      unitRef="pure">0.3104</oef:AvgAnnlRtrPct>
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      contextRef="C000048883_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-86730"
      unitRef="pure">0.1390</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-86731"
      unitRef="pure">0.0944</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-86732"
      unitRef="pure">0.3403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-86733"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-86734"
      unitRef="pure">0.0843</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86735"
      unitRef="pure">0.3786</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048883_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86736"
      unitRef="pure">0.1460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="INF"
      id="ixv-86737"
      unitRef="pure">0.1244</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048883_ClassMember" id="ixv-5255">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048883_ClassMember" id="ixv-5259">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048883_ClassMember" id="ixv-5265">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;380,025,415&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;268&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,906,123&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-86738"
      unitRef="usd">380025415</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048883_InstantMember"
      decimals="INF"
      id="ixv-86739"
      unitRef="holding">268</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-86740"
      unitRef="usd">2906123</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-86741"
      unitRef="pure">0.80</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048883_ClassMember" id="ixv-5340">
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

19.2

&#160;


Financials

16.7

&#160;


Consumer Discretionary

10.3

&#160;


Materials

10.3

&#160;


Energy

9.2

&#160;


Health Care

8.8

&#160;


Utilities

6.9

&#160;


Real Estate

5.3

&#160;


Consumer Staples

5.2

&#160;


Information Technology

4.3

&#160;


Communication Services

2.8

&#160;


&#160;




Common Stocks

99.0


Short-Term Investments and Net Other Assets (Liabilities)

1.0




ASSET ALLOCATION (% of Fund's net assets)









United States

86.3


Canada

6.0


United Kingdom

1.2


Germany

1.1


Puerto Rico

0.6


Belgium

0.6


Zambia

0.6


India

0.5


France

0.5


Others

2.6




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-86742"
      unitRef="pure">0.192</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86743"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86744"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048883_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-86745"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86746"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-86747"
      unitRef="pure">0.088</oef:PctOfNav>
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      id="ixv-86748"
      unitRef="pure">0.069</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86749"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86750"
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      id="ixv-86751"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86752"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86753"
      unitRef="pure">0.990</oef:PctOfNav>
    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-86758"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86759"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86760"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86761"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86762"
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    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048883_ClassMember" id="ixv-5576">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


PG&amp;E Corp

1.2


&#160;


Vistra Corp

1.2


&#160;


Ventas Inc

1.0


&#160;


Global Payments Inc

1.0


&#160;


Molina Healthcare Inc

0.9


&#160;


Smurfit WestRock PLC

0.9


&#160;


Lithia Motors Inc Class A

0.9


&#160;


Lumentum Holdings Inc

0.8


&#160;


International Paper Co

0.8


&#160;


Lamb Weston Holdings Inc

0.8


&#160;


&#160;

9.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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      unitRef="pure">0.009</oef:PctOfNav>
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    <oef:PctOfNav
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      id="ixv-86774"
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    <oef:MaterialFundChngTextBlock contextRef="C000048883_ClassMember" id="ixv-5701">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048883_ClassMember" id="ixv-5707">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048883_ClassMember" id="ixv-5711">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048883_ClassMember" id="ixv-5714">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048883_ClassMember" id="ixv-5718">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048883_ClassMember" id="ixv-5729">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-5787">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048864_ClassMember" id="ixv-5791">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048864_ClassMember" id="ixv-5802">Fidelity Advisor&#xae; High Income Advantage Fund</oef:FundName>
    <oef:ClassName contextRef="C000048864_ClassMember" id="ixv-5805">Fidelity Advisor&#xae; High Income Advantage Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048864_ClassMember" id="ixv-5809">FAHYX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048864_ClassMember" id="ixv-5828">This annual shareholder report contains information about Fidelity Advisor&#xae; High Income Advantage Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048864_ClassMember" id="ixv-5830">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048864_ClassMember" id="ixv-5835">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048864_ClassMember" id="ixv-5837">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048864_ClassMember" id="ixv-5840">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048864_ClassMember" id="ixv-5843">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048864_ClassMember" id="ixv-5850">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.96&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048864_ClassMember"
      decimals="0"
      id="ixv-86775"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048864_ClassMember"
      decimals="INF"
      id="ixv-86776"
      unitRef="pure">0.0096</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048864_ClassMember" id="ixv-5892">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;High-yield bonds achieved a strong gain for the 12 months ending October 31, 2024, driven by a resilient economy and corporate profits, the perception that credit risk has fallen amid elevated coupon yields, and the expectation the Federal Reserve would pivot to cutting interest rates in late 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in high-yield bonds rose 16.67% and contributed to performance versus the benchmark, the ICE BofA US High Yield/US High Yield Constrained Blend Index, for the fiscal year.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, security selection was the primary contributor, led by technology &amp;amp; electronics. Our picks in energy and financial services also boosted the fund's relative result.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;A non-benchmark stake in Nvidia gained 224% and was the top individual relative contributor. The company was the fund's largest holding at period end. The second-largest relative contributor was an overweight in Vistra (+69%), also a sizable position. Another notable relative contributor was a non-benchmark stake in Meta Platforms (+89%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was the fund's position in cash. Security selection in banking hurt this period, as did our choices and an underweight in health care. Also hurting our result was security selection in consumer goods.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The fund's non-benchmark stake in UiPath returned about -51% and was the biggest individual relative detractor. The second-largest relative detractor this period was avoiding CommScope, a benchmark component that gained 74%. Another notable relative detractor was a non-benchmark stake in JPMorgan Chase (+9%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the banking industry and a higher allocation to technology &amp;amp; electronics.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048864_ClassMember" id="ixv-5919">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,600

$9,617


$10,223


$11,523


$11,584


$12,440


$12,742


$15,525


$13,856


$14,572


$17,168



ICE&#xae; BofA&#xae; US High Yield Constrained Index


$10,000

$9,797


$10,795


$11,781


$11,883


$12,872


$13,187


$14,602


$12,932


$13,683


$15,939



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048864_LG_ClassMember_11YR" id="ixv-5940">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86777"
      unitRef="usd">9600</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86778"
      unitRef="usd">9617</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86779"
      unitRef="usd">10223</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86780"
      unitRef="usd">11523</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86781"
      unitRef="usd">11584</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86782"
      unitRef="usd">12440</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86783"
      unitRef="usd">12742</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86784"
      unitRef="usd">15525</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86785"
      unitRef="usd">13856</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86786"
      unitRef="usd">14572</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86787"
      unitRef="usd">17168</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048864_LG_1_AdditionalIndexMember_11YR"
      id="ixv-5989">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;ICE&#xae; BofA&#xae; US High Yield Constrained Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86788"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86789"
      unitRef="usd">9797</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86790"
      unitRef="usd">10795</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86791"
      unitRef="usd">11781</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86792"
      unitRef="usd">11883</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86793"
      unitRef="usd">12872</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86794"
      unitRef="usd">13187</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86795"
      unitRef="usd">14602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86796"
      unitRef="usd">12932</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86797"
      unitRef="usd">13683</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86798"
      unitRef="usd">15939</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048864_LG_2_AdditionalIndexMember_11YR"
      id="ixv-6038">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86799"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86800"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86801"
      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86802"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86803"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86804"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86805"
      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86806"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86807"
      unitRef="usd">10641</oef:AcctVal>
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      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86808"
      unitRef="usd">10768</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048864_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86809"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048864_ClassMember" id="ixv-6136">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 4.00% sales charge) &#160;

13.10%

5.79%


5.55%


Class M (without 4.00% sales charge)

17.82%

6.65%

5.98%


ICE&#xae; BofA&#xae; US High Yield Constrained Index

16.49%


4.37%


4.77%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-86810"
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      id="ixv-86811"
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      contextRef="C000048864_ClassMember_10YR"
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      id="ixv-86812"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-86813"
      unitRef="pure">0.1782</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-86814"
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      decimals="INF"
      id="ixv-86815"
      unitRef="pure">0.0598</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-86816"
      unitRef="pure">0.1649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048864_0_AdditionalIndexMember_5YR"
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      id="ixv-86817"
      unitRef="pure">0.0437</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048864_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-86818"
      unitRef="pure">0.0477</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048864_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86819"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048864_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86820"
      unitRef="pure">0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048864_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-86821"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048864_ClassMember" id="ixv-6228">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048864_ClassMember" id="ixv-6232">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048864_ClassMember" id="ixv-6238">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,310,946,691&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;717&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,652,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;29&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="0"
      id="ixv-86822"
      unitRef="usd">2310946691</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048864_InstantMember"
      decimals="INF"
      id="ixv-86823"
      unitRef="holding">717</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-86825"
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    <oef:HoldingsTableTextBlock contextRef="C000048864_ClassMember" id="ixv-6313">
&#160;
BBB

4.8


BB

20.7


B

30.9


CCC,CC,C

6.6


Not Rated

2.9


Equities

22.3


Short-Term Investments and Net Other Assets (Liabilities)

11.8




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Corporate Bonds

51.5


Common Stocks

20.1


Bank Loan Obligations

10.1


Preferred Securities

4.1


Alternative Funds

2.2


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

11.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

91.1


Canada

1.9


United Kingdom

1.8


France

1.4


Netherlands

0.5


China

0.5


Luxembourg

0.4


Zambia

0.4


Taiwan

0.3


Others

1.7




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86841"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-86842"
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    <oef:PctOfNav
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048864_ClassMember" id="ixv-6538">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


TransDigm Inc

2.6


&#160;


Fidelity Private Credit Company LLC

2.2


&#160;


Energy Transfer LP

2.1


&#160;


NVIDIA Corp

1.4


&#160;


Tenet Healthcare Corp

1.4


&#160;


LBM Acquisition LLC

1.2


&#160;


Altice France SA

1.1


&#160;


eG Global Finance PLC

1.1


&#160;


Carnival Corp

1.1


&#160;


Meta Platforms Inc Class A

1.1


&#160;


&#160;

15.3

&#160;



</oef:LargestHoldingsTableTextBlock>
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    <oef:PctOfNav
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    <oef:PctOfNav
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      id="ixv-86852"
      unitRef="pure">0.021</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-86853"
      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
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      unitRef="pure">0.014</oef:PctOfNav>
    <oef:PctOfNav
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      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86856"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048864_TH_7_Member"
      decimals="INF"
      id="ixv-86857"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048864_TH_8_Member"
      decimals="INF"
      id="ixv-86858"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048864_TH_9_Member"
      decimals="INF"
      id="ixv-86859"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048864_ClassMember" id="ixv-6663">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048864_ClassMember" id="ixv-6669">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048864_ClassMember" id="ixv-6673">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048864_ClassMember" id="ixv-6676">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048864_ClassMember" id="ixv-6680">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048864_ClassMember" id="ixv-6691">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-6749">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205047_ClassMember" id="ixv-6753">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205047_ClassMember" id="ixv-6764">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000205047_ClassMember" id="ixv-6767">Fidelity Advisor&#xae; Floating Rate High Income Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205047_ClassMember" id="ixv-6771">FIQSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205047_ClassMember" id="ixv-6790">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205047_ClassMember" id="ixv-6792">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205047_ClassMember" id="ixv-6797">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205047_ClassMember" id="ixv-6799">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205047_ClassMember" id="ixv-6802">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205047_ClassMember" id="ixv-6805">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205047_ClassMember" id="ixv-6812">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;61&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.58&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205047_ClassMember"
      decimals="0"
      id="ixv-86860"
      unitRef="usd">61</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205047_ClassMember"
      decimals="INF"
      id="ixv-86861"
      unitRef="pure">0.0058</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205047_ClassMember" id="ixv-6854">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205047_ClassMember" id="ixv-6881">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through October 31, 2024.
Initial investment of $10,000.
Class Z


$10,000

$9,974


$10,271


$10,272


$11,249


$11,066


$12,289



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$9,991


$10,242


$10,456


$11,386


$11,174


$12,536



Bloomberg U.S. Universal Bond Index


$10,000

$9,913


$11,039


$11,697


$11,754


$9,898


$10,016



&#160;

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205047_LG_ClassMember_7YR" id="ixv-6900">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86862"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86863"
      unitRef="usd">9974</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86864"
      unitRef="usd">10271</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86865"
      unitRef="usd">10272</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86866"
      unitRef="usd">11249</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86867"
      unitRef="usd">11066</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86868"
      unitRef="usd">12289</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205047_LG_1_AdditionalIndexMember_7YR"
      id="ixv-6933">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86869"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86870"
      unitRef="usd">9991</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86871"
      unitRef="usd">10242</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86872"
      unitRef="usd">10456</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86873"
      unitRef="usd">11386</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86874"
      unitRef="usd">11174</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86875"
      unitRef="usd">12536</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205047_LG_2_AdditionalIndexMember_7YR"
      id="ixv-6966">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86876"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86877"
      unitRef="usd">9913</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86878"
      unitRef="usd">11039</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86879"
      unitRef="usd">11697</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86880"
      unitRef="usd">11754</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86881"
      unitRef="usd">9898</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205047_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86882"
      unitRef="usd">10016</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205047_ClassMember" id="ixv-7036">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

10.24%

5.69%

5.12%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.56%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.79%




A&#160; &#160;From October 2, 2018

Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-86883"
      unitRef="pure">0.1024</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-86884"
      unitRef="pure">0.0569</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_NoLoadClassMember_2023-11-01_2024-10-31"
      decimals="INF"
      id="ixv-86885"
      unitRef="pure">0.0512</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-86886"
      unitRef="pure">0.1086</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-86887"
      unitRef="pure">0.0629</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-86888"
      unitRef="pure">0.0556</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86889"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86890"
      unitRef="pure">0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205047_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-86891"
      unitRef="pure">0.0179</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate contextRef="C000205047_ClassMember" id="ixv-7105">2018-10-02</oef:PerfInceptionDate>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205047_ClassMember" id="ixv-7122">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205047_ClassMember" id="ixv-7126">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205047_ClassMember" id="ixv-7132">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-86892"
      unitRef="usd">14682141753</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205047_InstantMember"
      decimals="INF"
      id="ixv-86893"
      unitRef="holding">623</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-86894"
      unitRef="usd">84188738</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205047_ClassMember"
      decimals="INF"
      id="ixv-86895"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205047_ClassMember" id="ixv-7207">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:LargestHoldingsTableTextBlock contextRef="C000205047_ClassMember" id="ixv-7432">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



</oef:LargestHoldingsTableTextBlock>
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&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205047_ClassMember" id="ixv-7563">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205047_ClassMember" id="ixv-7567">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205047_ClassMember" id="ixv-7570">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205047_ClassMember" id="ixv-7574">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000205047_ClassMember" id="ixv-7585">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-7643">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048879_ClassMember" id="ixv-7647">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048879_ClassMember" id="ixv-7658">Fidelity Advisor&#xae; Value Fund</oef:FundName>
    <oef:ClassName contextRef="C000048879_ClassMember" id="ixv-7661">Fidelity Advisor&#xae; Value Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048879_ClassMember" id="ixv-7665">FAVFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048879_ClassMember" id="ixv-7684">This annual shareholder report contains information about Fidelity Advisor&#xae; Value Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048879_ClassMember" id="ixv-7686">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048879_ClassMember" id="ixv-7691">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048879_ClassMember" id="ixv-7693">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048879_ClassMember" id="ixv-7696">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048879_ClassMember" id="ixv-7699">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048879_ClassMember" id="ixv-7706">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;133&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048879_ClassMember"
      decimals="0"
      id="ixv-86930"
      unitRef="usd">133</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048879_ClassMember"
      decimals="INF"
      id="ixv-86931"
      unitRef="pure">0.0115</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048879_ClassMember" id="ixv-7748">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. equities posted a strong advance for the 12 months ending October 31, 2024, driven by a resilient economy, the promise of artificial intelligence to drive transformative change and the Federal Reserve's long-anticipated pivot to cutting interest rates.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the Russell Midcap Value Index for the fiscal year, particularly within the consumer durables &amp;amp; apparel industry of the consumer discretionary sector. Stock picking in financials, primarily within the financial services industry, also hampered the fund's result, as did picks and an overweight in energy.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our non-benchmark stake in Constellium (-29%), a stock that was among our largest holdings this period. A second notable relative detractor was an overweight in Antero Resources (-13%), which was also one of the fund's largest holdings, though we reduced the position by period end. An overweight in Concentrix (-43%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock picking in real estate. Picks in utilities and information technology, primarily within the technology hardware &amp;amp; equipment industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Constellation Energy (+130%). The stock was the fund's largest holding this period, but we decreased the position by period end. A non-benchmark stake in Compass gained approximately 221% and was a second notable relative contributor. Another relative contributor was our non-benchmark stake in Targa Resources (+103%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer staples and health care sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048879_ClassMember" id="ixv-7772">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$9,414


$9,652


$11,497


$10,953


$11,939


$11,194


$18,493


$17,152


$17,277


$22,584



Russell Midcap&#xae; Value Index


$10,000

$10,047


$10,834


$12,689


$12,710


$13,990


$13,020


$19,347


$17,379


$16,759


$22,463



Russell 3000&#xae; Index


$10,000

$10,449


$10,892


$13,504


$14,395


$16,337


$17,995


$25,894


$21,617


$23,429


$32,298



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048879_LG_ClassMember_11YR" id="ixv-7793">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-86932"
      unitRef="usd">9425</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-86933"
      unitRef="usd">9414</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-86934"
      unitRef="usd">9652</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-86935"
      unitRef="usd">11497</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-86936"
      unitRef="usd">10953</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-86937"
      unitRef="usd">11939</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-86938"
      unitRef="usd">11194</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-86939"
      unitRef="usd">18493</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-86940"
      unitRef="usd">17152</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-86941"
      unitRef="usd">17277</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-86942"
      unitRef="usd">22584</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048879_LG_1_AdditionalIndexMember_11YR"
      id="ixv-7842">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell Midcap&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86943"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86944"
      unitRef="usd">10047</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86945"
      unitRef="usd">10834</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86946"
      unitRef="usd">12689</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86947"
      unitRef="usd">12710</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86948"
      unitRef="usd">13990</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86949"
      unitRef="usd">13020</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86950"
      unitRef="usd">19347</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86951"
      unitRef="usd">17379</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86952"
      unitRef="usd">16759</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86953"
      unitRef="usd">22463</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048879_LG_2_AdditionalIndexMember_11YR"
      id="ixv-7891">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-86954"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-86955"
      unitRef="usd">10449</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-86956"
      unitRef="usd">10892</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-86957"
      unitRef="usd">13504</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-86958"
      unitRef="usd">14395</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-86959"
      unitRef="usd">16337</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-86960"
      unitRef="usd">17995</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-86961"
      unitRef="usd">25894</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-86962"
      unitRef="usd">21617</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-86963"
      unitRef="usd">23429</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048879_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-86964"
      unitRef="usd">32298</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048879_ClassMember" id="ixv-7989">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

23.20%

12.26%


8.49%


Class A (without 5.75% sales charge)

30.72%

13.60%

9.13%


Russell Midcap&#xae; Value Index

34.03%


9.93%


8.43%


Russell 3000&#xae; Index

37.86%


14.60%


12.44%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_ClassMember_1YR"
      decimals="INF"
      id="ixv-86965"
      unitRef="pure">0.2320</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_ClassMember_5YR"
      decimals="INF"
      id="ixv-86966"
      unitRef="pure">0.1226</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_ClassMember_10YR"
      decimals="INF"
      id="ixv-86967"
      unitRef="pure">0.0849</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-86968"
      unitRef="pure">0.3072</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-86969"
      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-86970"
      unitRef="pure">0.0913</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-86971"
      unitRef="pure">0.3403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-86972"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-86973"
      unitRef="pure">0.0843</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-86974"
      unitRef="pure">0.3786</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-86975"
      unitRef="pure">0.1460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048879_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-86976"
      unitRef="pure">0.1244</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048879_ClassMember" id="ixv-8081">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048879_ClassMember" id="ixv-8085">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048879_ClassMember" id="ixv-8091">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;380,025,415&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;268&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,906,123&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="0"
      id="ixv-86977"
      unitRef="usd">380025415</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-86978"
      unitRef="holding">268</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-86979"
      unitRef="usd">2906123</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-86980"
      unitRef="pure">0.80</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048879_ClassMember" id="ixv-8166">
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

19.2

&#160;


Financials

16.7

&#160;


Consumer Discretionary

10.3

&#160;


Materials

10.3

&#160;


Energy

9.2

&#160;


Health Care

8.8

&#160;


Utilities

6.9

&#160;


Real Estate

5.3

&#160;


Consumer Staples

5.2

&#160;


Information Technology

4.3

&#160;


Communication Services

2.8

&#160;


&#160;




Common Stocks

99.0


Short-Term Investments and Net Other Assets (Liabilities)

1.0




ASSET ALLOCATION (% of Fund's net assets)









United States

86.3


Canada

6.0


United Kingdom

1.2


Germany

1.1


Puerto Rico

0.6


Belgium

0.6


Zambia

0.6


India

0.5


France

0.5


Others

2.6




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-86981"
      unitRef="pure">0.192</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-86982"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-86983"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-86984"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86985"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86986"
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      id="ixv-86987"
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    <oef:PctOfNav
      contextRef="C000048879_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-86988"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86989"
      unitRef="pure">0.052</oef:PctOfNav>
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      decimals="INF"
      id="ixv-86990"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-86991"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-86992"
      unitRef="pure">0.990</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86993"
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    <oef:PctOfNav
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    <oef:PctOfNav
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      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86996"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86997"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86998"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-86999"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
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      unitRef="pure">0.026</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000048879_ClassMember" id="ixv-8402">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


PG&amp;E Corp

1.2


&#160;


Vistra Corp

1.2


&#160;


Ventas Inc

1.0


&#160;


Global Payments Inc

1.0


&#160;


Molina Healthcare Inc

0.9


&#160;


Smurfit WestRock PLC

0.9


&#160;


Lithia Motors Inc Class A

0.9


&#160;


Lumentum Holdings Inc

0.8


&#160;


International Paper Co

0.8


&#160;


Lamb Weston Holdings Inc

0.8


&#160;


&#160;

9.5

&#160;



</oef:LargestHoldingsTableTextBlock>
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87005"
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    <oef:PctOfNav
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      id="ixv-87006"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87008"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_TH_5_Member"
      decimals="INF"
      id="ixv-87009"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_TH_6_Member"
      decimals="INF"
      id="ixv-87010"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_TH_7_Member"
      decimals="INF"
      id="ixv-87011"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87012"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048879_TH_9_Member"
      decimals="INF"
      id="ixv-87013"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048879_ClassMember" id="ixv-8527">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048879_ClassMember" id="ixv-8533">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048879_ClassMember" id="ixv-8537">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048879_ClassMember" id="ixv-8540">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048879_ClassMember" id="ixv-8544">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048879_ClassMember" id="ixv-8555">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-8613">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048881_ClassMember" id="ixv-8617">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048881_ClassMember" id="ixv-8628">Fidelity Advisor&#xae; Value Fund</oef:FundName>
    <oef:ClassName contextRef="C000048881_ClassMember" id="ixv-8631">Fidelity Advisor&#xae; Value Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048881_ClassMember" id="ixv-8635">FCVFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048881_ClassMember" id="ixv-8654">This annual shareholder report contains information about Fidelity Advisor&#xae; Value Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048881_ClassMember" id="ixv-8656">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048881_ClassMember" id="ixv-8661">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048881_ClassMember" id="ixv-8663">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048881_ClassMember" id="ixv-8666">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048881_ClassMember" id="ixv-8669">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048881_ClassMember" id="ixv-8676">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;218&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.90&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048881_ClassMember"
      decimals="0"
      id="ixv-87014"
      unitRef="usd">218</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048881_ClassMember"
      decimals="INF"
      id="ixv-87015"
      unitRef="pure">0.0190</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048881_ClassMember" id="ixv-8718">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. equities posted a strong advance for the 12 months ending October 31, 2024, driven by a resilient economy, the promise of artificial intelligence to drive transformative change and the Federal Reserve's long-anticipated pivot to cutting interest rates.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the Russell Midcap Value Index for the fiscal year, particularly within the consumer durables &amp;amp; apparel industry of the consumer discretionary sector. Stock picking in financials, primarily within the financial services industry, also hampered the fund's result, as did picks and an overweight in energy.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our non-benchmark stake in Constellium (-29%), a stock that was among our largest holdings this period. A second notable relative detractor was an overweight in Antero Resources (-13%), which was also one of the fund's largest holdings, though we reduced the position by period end. An overweight in Concentrix (-43%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock picking in real estate. Picks in utilities and information technology, primarily within the technology hardware &amp;amp; equipment industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Constellation Energy (+130%). The stock was the fund's largest holding this period, but we decreased the position by period end. A non-benchmark stake in Compass gained approximately 221% and was a second notable relative contributor. Another relative contributor was our non-benchmark stake in Targa Resources (+103%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer staples and health care sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048881_ClassMember" id="ixv-8742">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class C


$10,000

$9,911


$10,082


$11,917


$11,256


$12,171


$11,317


$18,557


$17,084


$17,208


$22,494



Russell Midcap&#xae; Value Index


$10,000

$10,047


$10,834


$12,689


$12,710


$13,990


$13,020


$19,347


$17,379


$16,759


$22,463



Russell 3000&#xae; Index


$10,000

$10,449


$10,892


$13,504


$14,395


$16,337


$17,995


$25,894


$21,617


$23,429


$32,298



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048881_LG_ClassMember_11YR" id="ixv-8761">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87016"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87017"
      unitRef="usd">9911</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87018"
      unitRef="usd">10082</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87019"
      unitRef="usd">11917</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87020"
      unitRef="usd">11256</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87021"
      unitRef="usd">12171</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87022"
      unitRef="usd">11317</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87023"
      unitRef="usd">18557</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87024"
      unitRef="usd">17084</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87025"
      unitRef="usd">17208</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87026"
      unitRef="usd">22494</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048881_LG_1_AdditionalIndexMember_11YR"
      id="ixv-8810">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell Midcap&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87027"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87028"
      unitRef="usd">10047</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87029"
      unitRef="usd">10834</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87030"
      unitRef="usd">12689</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87031"
      unitRef="usd">12710</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87032"
      unitRef="usd">13990</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87033"
      unitRef="usd">13020</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87034"
      unitRef="usd">19347</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87035"
      unitRef="usd">17379</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87036"
      unitRef="usd">16759</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87037"
      unitRef="usd">22463</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048881_LG_2_AdditionalIndexMember_11YR"
      id="ixv-8859">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87038"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87039"
      unitRef="usd">10449</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87040"
      unitRef="usd">10892</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87041"
      unitRef="usd">13504</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87042"
      unitRef="usd">14395</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87043"
      unitRef="usd">16337</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87044"
      unitRef="usd">17995</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87045"
      unitRef="usd">25894</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87046"
      unitRef="usd">21617</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87047"
      unitRef="usd">23429</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048881_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87048"
      unitRef="usd">32298</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048881_ClassMember" id="ixv-8957">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

28.70%

12.73%


8.44%


Class C

29.70%

12.73%

8.44%


Russell Midcap&#xae; Value Index

34.03%


9.93%


8.43%


Russell 3000&#xae; Index

37.86%


14.60%


12.44%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_ClassMember_1YR"
      decimals="INF"
      id="ixv-87049"
      unitRef="pure">0.2870</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_ClassMember_5YR"
      decimals="INF"
      id="ixv-87050"
      unitRef="pure">0.1273</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_ClassMember_10YR"
      decimals="INF"
      id="ixv-87051"
      unitRef="pure">0.0844</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-87052"
      unitRef="pure">0.2970</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-87053"
      unitRef="pure">0.1273</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-87054"
      unitRef="pure">0.0844</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-87055"
      unitRef="pure">0.3403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-87056"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-87057"
      unitRef="pure">0.0843</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-87058"
      unitRef="pure">0.3786</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-87059"
      unitRef="pure">0.1460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048881_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-87060"
      unitRef="pure">0.1244</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048881_ClassMember" id="ixv-9050">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048881_ClassMember" id="ixv-9054">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048881_ClassMember" id="ixv-9060">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;380,025,415&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;268&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,906,123&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-87061"
      unitRef="usd">380025415</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048881_InstantMember"
      decimals="INF"
      id="ixv-87062"
      unitRef="holding">268</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000048881_ClassMember"
      decimals="0"
      id="ixv-87063"
      unitRef="usd">2906123</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000048881_ClassMember"
      decimals="INF"
      id="ixv-87064"
      unitRef="pure">0.80</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048881_ClassMember" id="ixv-9135">
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

19.2

&#160;


Financials

16.7

&#160;


Consumer Discretionary

10.3

&#160;


Materials

10.3

&#160;


Energy

9.2

&#160;


Health Care

8.8

&#160;


Utilities

6.9

&#160;


Real Estate

5.3

&#160;


Consumer Staples

5.2

&#160;


Information Technology

4.3

&#160;


Communication Services

2.8

&#160;


&#160;




Common Stocks

99.0


Short-Term Investments and Net Other Assets (Liabilities)

1.0




ASSET ALLOCATION (% of Fund's net assets)









United States

86.3


Canada

6.0


United Kingdom

1.2


Germany

1.1


Puerto Rico

0.6


Belgium

0.6


Zambia

0.6


India

0.5


France

0.5


Others

2.6




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87065"
      unitRef="pure">0.192</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-87066"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-87067"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-87068"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-87069"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87070"
      unitRef="pure">0.088</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_UtilitiesSectorMember"
      decimals="INF"
      id="ixv-87071"
      unitRef="pure">0.069</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_RealEstateSectorMember"
      decimals="INF"
      id="ixv-87072"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-87073"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-87074"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-87075"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-87076"
      unitRef="pure">0.990</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-87077"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_US_Member"
      decimals="INF"
      id="ixv-87078"
      unitRef="pure">0.863</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_CA_Member"
      decimals="INF"
      id="ixv-87079"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_GB_Member"
      decimals="INF"
      id="ixv-87080"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_DE_Member"
      decimals="INF"
      id="ixv-87081"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_PR_Member"
      decimals="INF"
      id="ixv-87082"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_BE_Member"
      decimals="INF"
      id="ixv-87083"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_GD_ZM_Member"
      decimals="INF"
      id="ixv-87084"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87085"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87086"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87087"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000048881_ClassMember" id="ixv-9371">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


PG&amp;E Corp

1.2


&#160;


Vistra Corp

1.2


&#160;


Ventas Inc

1.0


&#160;


Global Payments Inc

1.0


&#160;


Molina Healthcare Inc

0.9


&#160;


Smurfit WestRock PLC

0.9


&#160;


Lithia Motors Inc Class A

0.9


&#160;


Lumentum Holdings Inc

0.8


&#160;


International Paper Co

0.8


&#160;


Lamb Weston Holdings Inc

0.8


&#160;


&#160;

9.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-87088"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_1_Member"
      decimals="INF"
      id="ixv-87089"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_2_Member"
      decimals="INF"
      id="ixv-87090"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_3_Member"
      decimals="INF"
      id="ixv-87091"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_4_Member"
      decimals="INF"
      id="ixv-87092"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_5_Member"
      decimals="INF"
      id="ixv-87093"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_6_Member"
      decimals="INF"
      id="ixv-87094"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_7_Member"
      decimals="INF"
      id="ixv-87095"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_8_Member"
      decimals="INF"
      id="ixv-87096"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048881_TH_9_Member"
      decimals="INF"
      id="ixv-87097"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048881_ClassMember" id="ixv-9496">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048881_ClassMember" id="ixv-9502">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048881_ClassMember" id="ixv-9506">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048881_ClassMember" id="ixv-9509">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048881_ClassMember" id="ixv-9513">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048881_ClassMember" id="ixv-9524">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-9582">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048858_ClassMember" id="ixv-9586">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048858_ClassMember" id="ixv-9597">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000048858_ClassMember" id="ixv-9600">Fidelity Advisor&#xae; Floating Rate High Income Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048858_ClassMember" id="ixv-9604">FFRAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048858_ClassMember" id="ixv-9623">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048858_ClassMember" id="ixv-9625">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048858_ClassMember" id="ixv-9630">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048858_ClassMember" id="ixv-9632">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048858_ClassMember" id="ixv-9635">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048858_ClassMember" id="ixv-9638">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048858_ClassMember" id="ixv-9645">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;99&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048858_ClassMember"
      decimals="0"
      id="ixv-87098"
      unitRef="usd">99</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048858_ClassMember"
      decimals="INF"
      id="ixv-87099"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048858_ClassMember" id="ixv-9687">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048858_ClassMember" id="ixv-9714">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,725

$9,674


$10,252


$10,703


$11,089


$11,380


$11,329


$12,376


$12,133


$13,413


$14,733



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$10,151


$10,824


$11,392


$11,936


$12,235


$12,491


$13,602


$13,349


$14,977


$16,603



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048858_LG_ClassMember_11YR" id="ixv-9735">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87100"
      unitRef="usd">9725</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87101"
      unitRef="usd">9674</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87102"
      unitRef="usd">10252</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87103"
      unitRef="usd">10703</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87104"
      unitRef="usd">11089</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87105"
      unitRef="usd">11380</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87106"
      unitRef="usd">11329</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87107"
      unitRef="usd">12376</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87108"
      unitRef="usd">12133</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87109"
      unitRef="usd">13413</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87110"
      unitRef="usd">14733</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048858_LG_1_AdditionalIndexMember_11YR"
      id="ixv-9784">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87111"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87112"
      unitRef="usd">10151</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87113"
      unitRef="usd">10824</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87114"
      unitRef="usd">11392</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87115"
      unitRef="usd">11936</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87116"
      unitRef="usd">12235</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87117"
      unitRef="usd">12491</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87118"
      unitRef="usd">13602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87119"
      unitRef="usd">13349</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87120"
      unitRef="usd">14977</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87121"
      unitRef="usd">16603</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
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      id="ixv-9833">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87122"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87123"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87124"
      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87125"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87126"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87127"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87128"
      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87129"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87130"
      unitRef="usd">10641</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048858_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87131"
      unitRef="usd">10768</oef:AcctVal>
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      decimals="0"
      id="ixv-87132"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048858_ClassMember" id="ixv-9931">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 2.75% sales charge) &#160;

6.82%

4.72%


3.95%


Class A (without 2.75% sales charge)

9.85%

5.30%

4.24%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.20%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-87133"
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      id="ixv-87134"
      unitRef="pure">0.0472</oef:AvgAnnlRtrPct>
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      id="ixv-87135"
      unitRef="pure">0.0395</oef:AvgAnnlRtrPct>
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      id="ixv-87136"
      unitRef="pure">0.0985</oef:AvgAnnlRtrPct>
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      id="ixv-87137"
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      decimals="INF"
      id="ixv-87138"
      unitRef="pure">0.0424</oef:AvgAnnlRtrPct>
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      id="ixv-87139"
      unitRef="pure">0.1086</oef:AvgAnnlRtrPct>
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      contextRef="C000048858_0_AdditionalIndexMember_5YR"
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      id="ixv-87140"
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      id="ixv-87141"
      unitRef="pure">0.0520</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="INF"
      id="ixv-87142"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="INF"
      id="ixv-87143"
      unitRef="pure">0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="INF"
      id="ixv-87144"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048858_ClassMember" id="ixv-10023">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048858_ClassMember" id="ixv-10027">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048858_ClassMember" id="ixv-10033">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="0"
      id="ixv-87145"
      unitRef="usd">14682141753</us-gaap:AssetsNet>
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      id="ixv-87146"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-87148"
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    <oef:HoldingsTableTextBlock contextRef="C000048858_ClassMember" id="ixv-10108">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048858_ClassMember" id="ixv-10333">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



</oef:LargestHoldingsTableTextBlock>
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      decimals="INF"
      id="ixv-87180"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048858_TH_8_Member"
      decimals="INF"
      id="ixv-87181"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048858_TH_9_Member"
      decimals="INF"
      id="ixv-87182"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048858_ClassMember" id="ixv-10458">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048858_ClassMember" id="ixv-10464">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048858_ClassMember" id="ixv-10468">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048858_ClassMember" id="ixv-10471">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048858_ClassMember" id="ixv-10475">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048858_ClassMember" id="ixv-10486">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-10544">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048865_ClassMember" id="ixv-10548">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048865_ClassMember" id="ixv-10559">Fidelity Advisor&#xae; High Income Advantage Fund</oef:FundName>
    <oef:ClassName contextRef="C000048865_ClassMember" id="ixv-10562">Fidelity Advisor&#xae; High Income Advantage Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048865_ClassMember" id="ixv-10566">FAHCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048865_ClassMember" id="ixv-10585">This annual shareholder report contains information about Fidelity Advisor&#xae; High Income Advantage Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048865_ClassMember" id="ixv-10587">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048865_ClassMember" id="ixv-10592">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048865_ClassMember" id="ixv-10594">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048865_ClassMember" id="ixv-10597">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048865_ClassMember" id="ixv-10600">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048865_ClassMember" id="ixv-10607">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.73&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048865_ClassMember"
      decimals="0"
      id="ixv-87183"
      unitRef="usd">80</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048865_ClassMember"
      decimals="INF"
      id="ixv-87184"
      unitRef="pure">0.0073</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048865_ClassMember" id="ixv-10649">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;High-yield bonds achieved a strong gain for the 12 months ending October 31, 2024, driven by a resilient economy and corporate profits, the perception that credit risk has fallen amid elevated coupon yields, and the expectation the Federal Reserve would pivot to cutting interest rates in late 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in high-yield bonds rose 16.67% and contributed to performance versus the benchmark, the ICE BofA US High Yield/US High Yield Constrained Blend Index, for the fiscal year.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, security selection was the primary contributor, led by technology &amp;amp; electronics. Our picks in energy and financial services also boosted the fund's relative result.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;A non-benchmark stake in Nvidia gained 224% and was the top individual relative contributor. The company was the fund's largest holding at period end. The second-largest relative contributor was an overweight in Vistra (+69%), also a sizable position. Another notable relative contributor was a non-benchmark stake in Meta Platforms (+89%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was the fund's position in cash. Security selection in banking hurt this period, as did our choices and an underweight in health care. Also hurting our result was security selection in consumer goods.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The fund's non-benchmark stake in UiPath returned about -51% and was the biggest individual relative detractor. The second-largest relative detractor this period was avoiding CommScope, a benchmark component that gained 74%. Another notable relative detractor was a non-benchmark stake in JPMorgan Chase (+9%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the banking industry and a higher allocation to technology &amp;amp; electronics.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048865_ClassMember" id="ixv-10676">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class I


$10,000

$10,031


$10,686


$12,082


$12,178


$13,113


$13,466


$16,447


$14,710


$15,497


$18,315



ICE&#xae; BofA&#xae; US High Yield Constrained Index


$10,000

$9,797


$10,795


$11,781


$11,883


$12,872


$13,187


$14,602


$12,932


$13,683


$15,939



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048865_LG_ClassMember_11YR" id="ixv-10695">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87185"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87186"
      unitRef="usd">10031</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87187"
      unitRef="usd">10686</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87188"
      unitRef="usd">12082</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87189"
      unitRef="usd">12178</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87190"
      unitRef="usd">13113</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87191"
      unitRef="usd">13466</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87192"
      unitRef="usd">16447</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87193"
      unitRef="usd">14710</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87194"
      unitRef="usd">15497</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87195"
      unitRef="usd">18315</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048865_LG_1_AdditionalIndexMember_11YR"
      id="ixv-10744">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;ICE&#xae; BofA&#xae; US High Yield Constrained Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87196"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87197"
      unitRef="usd">9797</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87198"
      unitRef="usd">10795</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2017"
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      id="ixv-87199"
      unitRef="usd">11781</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2018"
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    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87201"
      unitRef="usd">12872</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87202"
      unitRef="usd">13187</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87203"
      unitRef="usd">14602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87204"
      unitRef="usd">12932</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87205"
      unitRef="usd">13683</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87206"
      unitRef="usd">15939</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
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      id="ixv-10793">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87207"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87208"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87209"
      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87210"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2018"
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      id="ixv-87211"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87212"
      unitRef="usd">11869</oef:AcctVal>
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      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87213"
      unitRef="usd">12576</oef:AcctVal>
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      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87214"
      unitRef="usd">12636</oef:AcctVal>
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      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87215"
      unitRef="usd">10641</oef:AcctVal>
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      contextRef="C000048865_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87216"
      unitRef="usd">10768</oef:AcctVal>
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      decimals="0"
      id="ixv-87217"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048865_ClassMember" id="ixv-10891">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

18.18%

6.91%

6.24%


ICE&#xae; BofA&#xae; US High Yield Constrained Index

16.49%


4.37%


4.77%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-87218"
      unitRef="pure">0.1818</oef:AvgAnnlRtrPct>
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      id="ixv-87219"
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      id="ixv-87220"
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    <oef:AvgAnnlRtrPct
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      id="ixv-87221"
      unitRef="pure">0.1649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-87222"
      unitRef="pure">0.0437</oef:AvgAnnlRtrPct>
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      contextRef="C000048865_0_AdditionalIndexMember_10YR"
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      id="ixv-87223"
      unitRef="pure">0.0477</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048865_1_BBIndexMember_1YR"
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      id="ixv-87224"
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    <oef:AvgAnnlRtrPct
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      id="ixv-87225"
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    <oef:AvgAnnlRtrPct
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      id="ixv-87226"
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    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048865_ClassMember" id="ixv-10968">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048865_ClassMember" id="ixv-10972">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048865_ClassMember" id="ixv-10978">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,310,946,691&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;717&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,652,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;29&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000048865_InstantMember"
      decimals="0"
      id="ixv-87227"
      unitRef="usd">2310946691</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048865_InstantMember"
      decimals="INF"
      id="ixv-87228"
      unitRef="holding">717</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000048865_ClassMember"
      decimals="0"
      id="ixv-87229"
      unitRef="usd">13652978</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-87230"
      unitRef="pure">0.29</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048865_ClassMember" id="ixv-11053">
&#160;
BBB

4.8


BB

20.7


B

30.9


CCC,CC,C

6.6


Not Rated

2.9


Equities

22.3


Short-Term Investments and Net Other Assets (Liabilities)

11.8




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Corporate Bonds

51.5


Common Stocks

20.1


Bank Loan Obligations

10.1


Preferred Securities

4.1


Alternative Funds

2.2


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

11.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

91.1


Canada

1.9


United Kingdom

1.8


France

1.4


Netherlands

0.5


China

0.5


Luxembourg

0.4


Zambia

0.4


Taiwan

0.3


Others

1.7




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048865_ClassMember" id="ixv-11278">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


TransDigm Inc

2.6


&#160;


Fidelity Private Credit Company LLC

2.2


&#160;


Energy Transfer LP

2.1


&#160;


NVIDIA Corp

1.4


&#160;


Tenet Healthcare Corp

1.4


&#160;


LBM Acquisition LLC

1.2


&#160;


Altice France SA

1.1


&#160;


eG Global Finance PLC

1.1


&#160;


Carnival Corp

1.1


&#160;


Meta Platforms Inc Class A

1.1


&#160;


&#160;

15.3

&#160;



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    <oef:PctOfNav
      contextRef="C000048865_TH_9_Member"
      decimals="INF"
      id="ixv-87264"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048865_ClassMember" id="ixv-11403">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048865_ClassMember" id="ixv-11409">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048865_ClassMember" id="ixv-11413">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048865_ClassMember" id="ixv-11416">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048865_ClassMember" id="ixv-11420">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048865_ClassMember" id="ixv-11431">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-11489">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048861_ClassMember" id="ixv-11493">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048861_ClassMember" id="ixv-11504">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000048861_ClassMember" id="ixv-11507">Fidelity Advisor&#xae; Floating Rate High Income Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048861_ClassMember" id="ixv-11511">FFRTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048861_ClassMember" id="ixv-11530">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048861_ClassMember" id="ixv-11532">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048861_ClassMember" id="ixv-11537">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048861_ClassMember" id="ixv-11539">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048861_ClassMember" id="ixv-11542">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048861_ClassMember" id="ixv-11545">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048861_ClassMember" id="ixv-11552">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;97&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.93&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048861_ClassMember"
      decimals="0"
      id="ixv-87265"
      unitRef="usd">97</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048861_ClassMember"
      decimals="INF"
      id="ixv-87266"
      unitRef="pure">0.0093</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048861_ClassMember" id="ixv-11594">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048861_ClassMember" id="ixv-11621">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,725

$9,655


$10,223


$10,670


$11,053


$11,354


$11,301


$12,332


$12,089


$13,381


$14,700



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$10,151


$10,824


$11,392


$11,936


$12,235


$12,491


$13,602


$13,349


$14,977


$16,603



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048861_LG_ClassMember_11YR" id="ixv-11642">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87267"
      unitRef="usd">9725</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87268"
      unitRef="usd">9655</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87269"
      unitRef="usd">10223</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87270"
      unitRef="usd">10670</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87271"
      unitRef="usd">11053</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87272"
      unitRef="usd">11354</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87273"
      unitRef="usd">11301</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87274"
      unitRef="usd">12332</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87275"
      unitRef="usd">12089</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87276"
      unitRef="usd">13381</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87277"
      unitRef="usd">14700</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048861_LG_1_AdditionalIndexMember_11YR"
      id="ixv-11691">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87278"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87279"
      unitRef="usd">10151</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87280"
      unitRef="usd">10824</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87281"
      unitRef="usd">11392</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87282"
      unitRef="usd">11936</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87283"
      unitRef="usd">12235</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87284"
      unitRef="usd">12491</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87285"
      unitRef="usd">13602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87286"
      unitRef="usd">13349</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87287"
      unitRef="usd">14977</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87288"
      unitRef="usd">16603</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
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      id="ixv-11740">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2014"
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      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87290"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
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      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87292"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87293"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87294"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2020"
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      id="ixv-87295"
      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87296"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87297"
      unitRef="usd">10641</oef:AcctVal>
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      contextRef="C000048861_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87298"
      unitRef="usd">10768</oef:AcctVal>
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      decimals="0"
      id="ixv-87299"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048861_ClassMember" id="ixv-11838">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 2.75% sales charge) &#160;

6.84%

4.72%


3.93%


Class M (without 2.75% sales charge)

9.86%

5.30%

4.22%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.20%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-87302"
      unitRef="pure">0.0393</oef:AvgAnnlRtrPct>
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      id="ixv-87303"
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      id="ixv-87304"
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      id="ixv-87305"
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      id="ixv-87306"
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      id="ixv-87307"
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      id="ixv-87308"
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      id="ixv-87309"
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      id="ixv-87310"
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      id="ixv-87311"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048861_ClassMember" id="ixv-11930">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048861_ClassMember" id="ixv-11934">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048861_ClassMember" id="ixv-11940">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
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      decimals="0"
      id="ixv-87312"
      unitRef="usd">14682141753</us-gaap:AssetsNet>
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      id="ixv-87313"
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-87315"
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    <oef:HoldingsTableTextBlock contextRef="C000048861_ClassMember" id="ixv-12015">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







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    <oef:LargestHoldingsTableTextBlock contextRef="C000048861_ClassMember" id="ixv-12240">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



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      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048861_TH_7_Member"
      decimals="INF"
      id="ixv-87347"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048861_TH_8_Member"
      decimals="INF"
      id="ixv-87348"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048861_TH_9_Member"
      decimals="INF"
      id="ixv-87349"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048861_ClassMember" id="ixv-12365">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048861_ClassMember" id="ixv-12371">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048861_ClassMember" id="ixv-12375">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048861_ClassMember" id="ixv-12378">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048861_ClassMember" id="ixv-12382">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048861_ClassMember" id="ixv-12393">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-12451">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048860_ClassMember" id="ixv-12455">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048860_ClassMember" id="ixv-12466">Fidelity Advisor&#xae; Floating Rate High Income Fund</oef:FundName>
    <oef:ClassName contextRef="C000048860_ClassMember" id="ixv-12469">Fidelity Advisor&#xae; Floating Rate High Income Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048860_ClassMember" id="ixv-12473">FFRCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048860_ClassMember" id="ixv-12492">This annual shareholder report contains information about Fidelity Advisor&#xae; Floating Rate High Income Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048860_ClassMember" id="ixv-12494">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048860_ClassMember" id="ixv-12499">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048860_ClassMember" id="ixv-12501">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048860_ClassMember" id="ixv-12504">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048860_ClassMember" id="ixv-12507">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048860_ClassMember" id="ixv-12514">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;177&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048860_ClassMember"
      decimals="0"
      id="ixv-87350"
      unitRef="usd">177</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048860_ClassMember"
      decimals="INF"
      id="ixv-87351"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048860_ClassMember" id="ixv-12556">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Given resilient corporate profits, a realization that the U.S. economy was performing better than forecast, and increasing conviction that the U.S. Federal Reserve may take a more measured approach to interest rate cuts amid a strong economy, leveraged loans posted a solid gain for the 12 months ending October 31, 2024.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in floating-rate leveraged loans increased 10.71% and detracted from performance versus the Morningstar LSTA US Performing Loans Index for the fiscal year.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, market selection was the primary detractor, especially an underweight in health care. Also hurting our result were our choices in food products and all telecom.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Not owning Air Medical, a benchmark component that gained 60%, was the biggest individual relative detractor. A second notable relative detractor was an overweight in Del Monte (-20%). An overweight in Securus Technologies (-18%, Aventiv Technologies) also detracted.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the primary contributor to performance versus the benchmark was security selection in electronics/electrical. Security selection in insurance also boosted the fund's relative performance, as did an underweight in surface transport.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Asurion (+19%), the fund's largest holding at period end. Not owning Magenta Buyer, a benchmark component that returned about -37%, was a second notable relative contributor. Another relative contributor this period was avoiding Dell Software, a benchmark component that returned -30%.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include higher allocations to the financial intermediaries and chemicals &amp;amp; plastics industries.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048860_ClassMember" id="ixv-12583">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000.
Class C


$10,000

$9,862


$10,374


$10,761


$11,065


$11,271


$11,137


$12,075


$11,736


$12,974


$14,251



Morningstar&#xae; LSTA&#xae; US Performing Loans


$10,000

$10,151


$10,824


$11,392


$11,936


$12,235


$12,491


$13,602


$13,349


$14,977


$16,603



Bloomberg U.S. Universal Bond Index


$10,000

$10,167


$10,682


$10,870


$10,658


$11,869


$12,576


$12,636


$10,641


$10,768


$11,974



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048860_LG_ClassMember_11YR" id="ixv-12602">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87352"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87353"
      unitRef="usd">9862</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87354"
      unitRef="usd">10374</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87355"
      unitRef="usd">10761</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87356"
      unitRef="usd">11065</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87357"
      unitRef="usd">11271</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87358"
      unitRef="usd">11137</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87359"
      unitRef="usd">12075</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87360"
      unitRef="usd">11736</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87361"
      unitRef="usd">12974</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87362"
      unitRef="usd">14251</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048860_LG_1_AdditionalIndexMember_11YR"
      id="ixv-12651">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Morningstar&#xae; LSTA&#xae; US Performing Loans&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87363"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87364"
      unitRef="usd">10151</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87365"
      unitRef="usd">10824</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87366"
      unitRef="usd">11392</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87367"
      unitRef="usd">11936</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87368"
      unitRef="usd">12235</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87369"
      unitRef="usd">12491</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87370"
      unitRef="usd">13602</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87371"
      unitRef="usd">13349</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87372"
      unitRef="usd">14977</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87373"
      unitRef="usd">16603</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048860_LG_2_AdditionalIndexMember_11YR"
      id="ixv-12700">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87374"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87375"
      unitRef="usd">10167</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87376"
      unitRef="usd">10682</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87377"
      unitRef="usd">10870</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87378"
      unitRef="usd">10658</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87379"
      unitRef="usd">11869</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87380"
      unitRef="usd">12576</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87381"
      unitRef="usd">12636</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87382"
      unitRef="usd">10641</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87383"
      unitRef="usd">10768</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048860_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87384"
      unitRef="usd">11974</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048860_ClassMember" id="ixv-12798">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

8.03%

4.51%


3.61%


Class C

9.03%

4.51%

3.61%


Morningstar&#xae; LSTA&#xae; US Performing Loans

10.86%


6.29%


5.20%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.82%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_ClassMember_1YR"
      decimals="INF"
      id="ixv-87385"
      unitRef="pure">0.0803</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_ClassMember_5YR"
      decimals="INF"
      id="ixv-87386"
      unitRef="pure">0.0451</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_ClassMember_10YR"
      decimals="INF"
      id="ixv-87387"
      unitRef="pure">0.0361</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-87388"
      unitRef="pure">0.0903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-87389"
      unitRef="pure">0.0451</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-87390"
      unitRef="pure">0.0361</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-87391"
      unitRef="pure">0.1086</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-87392"
      unitRef="pure">0.0629</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-87393"
      unitRef="pure">0.0520</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-87394"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-87395"
      unitRef="pure">0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048860_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-87396"
      unitRef="pure">0.0182</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048860_ClassMember" id="ixv-12891">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048860_ClassMember" id="ixv-12895">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048860_ClassMember" id="ixv-12901">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;14,682,141,753&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;623&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;84,188,738&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-87397"
      unitRef="usd">14682141753</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-87398"
      unitRef="holding">623</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000048860_ClassMember"
      decimals="0"
      id="ixv-87399"
      unitRef="usd">84188738</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000048860_ClassMember"
      decimals="INF"
      id="ixv-87400"
      unitRef="pure">0.41</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048860_ClassMember" id="ixv-12976">
&#160;
BBB

1.3


BB

22.5


B

59.8


CCC,CC,C

6.1


Not Rated

5.4


Equities

2.3


Short-Term Investments and Net Other Assets (Liabilities)

2.6




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Bank Loan Obligations

90.1


Corporate Bonds

4.5


Common Stocks

1.5


Alternative Funds

0.8


Preferred Securities

0.3


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

2.6




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

90.3


United Kingdom

2.5


Canada

2.0


Netherlands

1.1


France

0.8


Puerto Rico

0.7


Luxembourg

0.6


Ireland

0.4


Grand Cayman (UK Overseas Ter)

0.4


Others

1.2




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
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    <oef:PctOfNav
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    <oef:PctOfNav
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      unitRef="pure">0.903</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87416"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_GD_CA_Member"
      decimals="INF"
      id="ixv-87417"
      unitRef="pure">0.020</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87418"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87419"
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    <oef:LargestHoldingsTableTextBlock contextRef="C000048860_ClassMember" id="ixv-13201">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


Asurion LLC

2.2


&#160;


Great Outdoors Group LLC

2.2


&#160;


Fertitta Entertainment LLC/NV

1.2


&#160;


Acrisure LLC

1.2


&#160;


Caesars Entertainment Inc

1.2


&#160;


Polaris Newco LLC

1.0


&#160;


MH Sub I LLC

1.0


&#160;


TransDigm Inc

1.0


&#160;


Medline Borrower LP

0.9


&#160;


UKG Inc

0.9


&#160;


&#160;

12.8

&#160;



</oef:LargestHoldingsTableTextBlock>
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    <oef:PctOfNav
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      id="ixv-87426"
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      id="ixv-87428"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87429"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_TH_5_Member"
      decimals="INF"
      id="ixv-87430"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_TH_6_Member"
      decimals="INF"
      id="ixv-87431"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_TH_7_Member"
      decimals="INF"
      id="ixv-87432"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_TH_8_Member"
      decimals="INF"
      id="ixv-87433"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048860_TH_9_Member"
      decimals="INF"
      id="ixv-87434"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048860_ClassMember" id="ixv-13326">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048860_ClassMember" id="ixv-13332">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048860_ClassMember" id="ixv-13336">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048860_ClassMember" id="ixv-13339">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048860_ClassMember" id="ixv-13343">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048860_ClassMember" id="ixv-13354">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-13412">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000048882_ClassMember" id="ixv-13416">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000048882_ClassMember" id="ixv-13427">Fidelity Advisor&#xae; Value Fund</oef:FundName>
    <oef:ClassName contextRef="C000048882_ClassMember" id="ixv-13430">Fidelity Advisor&#xae; Value Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000048882_ClassMember" id="ixv-13434">FTVFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000048882_ClassMember" id="ixv-13453">This annual shareholder report contains information about Fidelity Advisor&#xae; Value Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000048882_ClassMember" id="ixv-13455">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000048882_ClassMember" id="ixv-13460">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000048882_ClassMember" id="ixv-13462">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000048882_ClassMember" id="ixv-13465">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000048882_ClassMember" id="ixv-13468">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000048882_ClassMember" id="ixv-13475">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;161&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.40&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000048882_ClassMember"
      decimals="0"
      id="ixv-87435"
      unitRef="usd">161</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000048882_ClassMember"
      decimals="INF"
      id="ixv-87436"
      unitRef="pure">0.0140</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000048882_ClassMember" id="ixv-13517">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;U.S. equities posted a strong advance for the 12 months ending October 31, 2024, driven by a resilient economy, the promise of artificial intelligence to drive transformative change and the Federal Reserve's long-anticipated pivot to cutting interest rates.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, security selection was the primary detractor from the fund's performance versus the Russell Midcap Value Index for the fiscal year, particularly within the consumer durables &amp;amp; apparel industry of the consumer discretionary sector. Stock picking in financials, primarily within the financial services industry, also hampered the fund's result, as did picks and an overweight in energy.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The biggest individual relative detractor was our non-benchmark stake in Constellium (-29%), a stock that was among our largest holdings this period. A second notable relative detractor was an overweight in Antero Resources (-13%), which was also one of the fund's largest holdings, though we reduced the position by period end. An overweight in Concentrix (-43%) also hurt.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest contributor to performance versus the benchmark was stock picking in real estate. Picks in utilities and information technology, primarily within the technology hardware &amp;amp; equipment industry, also boosted the fund's relative performance.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The top individual relative contributor was an overweight in Constellation Energy (+130%). The stock was the fund's largest holding this period, but we decreased the position by period end. A non-benchmark stake in Compass gained approximately 221% and was a second notable relative contributor. Another relative contributor was our non-benchmark stake in Targa Resources (+103%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include increased exposure to the consumer staples and health care sectors.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000048882_ClassMember" id="ixv-13541">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 31, 2014 through October 31, 2024.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$9,608


$9,827


$11,673


$11,088


$12,058


$11,268


$18,571


$17,186


$17,271


$22,514



Russell Midcap&#xae; Value Index


$10,000

$10,047


$10,834


$12,689


$12,710


$13,990


$13,020


$19,347


$17,379


$16,759


$22,463



Russell 3000&#xae; Index


$10,000

$10,449


$10,892


$13,504


$14,395


$16,337


$17,995


$25,894


$21,617


$23,429


$32,298



&#160;

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000048882_LG_ClassMember_11YR" id="ixv-13562">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2014"
      decimals="0"
      id="ixv-87437"
      unitRef="usd">9650</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2015"
      decimals="0"
      id="ixv-87438"
      unitRef="usd">9608</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-87439"
      unitRef="usd">9827</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-87440"
      unitRef="usd">11673</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87441"
      unitRef="usd">11088</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87442"
      unitRef="usd">12058</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87443"
      unitRef="usd">11268</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87444"
      unitRef="usd">18571</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87445"
      unitRef="usd">17186</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87446"
      unitRef="usd">17271</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87447"
      unitRef="usd">22514</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048882_LG_1_AdditionalIndexMember_11YR"
      id="ixv-13611">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell Midcap&#xae; Value Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87448"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87449"
      unitRef="usd">10047</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87450"
      unitRef="usd">10834</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87451"
      unitRef="usd">12689</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87452"
      unitRef="usd">12710</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87453"
      unitRef="usd">13990</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87454"
      unitRef="usd">13020</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87455"
      unitRef="usd">19347</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87456"
      unitRef="usd">17379</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87457"
      unitRef="usd">16759</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87458"
      unitRef="usd">22463</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000048882_LG_2_AdditionalIndexMember_11YR"
      id="ixv-13660">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Russell 3000&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2014"
      decimals="0"
      id="ixv-87459"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2015"
      decimals="0"
      id="ixv-87460"
      unitRef="usd">10449</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-87461"
      unitRef="usd">10892</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-87462"
      unitRef="usd">13504</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87463"
      unitRef="usd">14395</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87464"
      unitRef="usd">16337</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87465"
      unitRef="usd">17995</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87466"
      unitRef="usd">25894</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87467"
      unitRef="usd">21617</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87468"
      unitRef="usd">23429</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000048882_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87469"
      unitRef="usd">32298</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000048882_ClassMember" id="ixv-13758">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

25.80%

12.50%


8.45%


Class M (without 3.50% sales charge)

30.36%

13.30%

8.84%


Russell Midcap&#xae; Value Index

34.03%


9.93%


8.43%


Russell 3000&#xae; Index

37.86%


14.60%


12.44%




&#160;
Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
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      id="ixv-87470"
      unitRef="pure">0.2580</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_ClassMember_5YR"
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      id="ixv-87471"
      unitRef="pure">0.1250</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_ClassMember_10YR"
      decimals="INF"
      id="ixv-87472"
      unitRef="pure">0.0845</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-87473"
      unitRef="pure">0.3036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-87474"
      unitRef="pure">0.1330</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-87475"
      unitRef="pure">0.0884</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_0_AdditionalIndexMember_1YR"
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      id="ixv-87476"
      unitRef="pure">0.3403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-87477"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-87478"
      unitRef="pure">0.0843</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-87479"
      unitRef="pure">0.3786</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-87480"
      unitRef="pure">0.1460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000048882_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-87481"
      unitRef="pure">0.1244</oef:AvgAnnlRtrPct>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000048882_ClassMember" id="ixv-13850">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000048882_ClassMember" id="ixv-13854">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000048882_ClassMember" id="ixv-13860">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;380,025,415&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;268&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,906,123&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-87482"
      unitRef="usd">380025415</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000048882_InstantMember"
      decimals="INF"
      id="ixv-87483"
      unitRef="holding">268</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-87484"
      unitRef="usd">2906123</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000048882_ClassMember"
      decimals="INF"
      id="ixv-87485"
      unitRef="pure">0.80</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000048882_ClassMember" id="ixv-13935">
&#160;
MARKET SECTORS
(% of Fund's net assets)

&#160;

&#160;


Industrials

19.2

&#160;


Financials

16.7

&#160;


Consumer Discretionary

10.3

&#160;


Materials

10.3

&#160;


Energy

9.2

&#160;


Health Care

8.8

&#160;


Utilities

6.9

&#160;


Real Estate

5.3

&#160;


Consumer Staples

5.2

&#160;


Information Technology

4.3

&#160;


Communication Services

2.8

&#160;


&#160;




Common Stocks

99.0


Short-Term Investments and Net Other Assets (Liabilities)

1.0




ASSET ALLOCATION (% of Fund's net assets)









United States

86.3


Canada

6.0


United Kingdom

1.2


Germany

1.1


Puerto Rico

0.6


Belgium

0.6


Zambia

0.6


India

0.5


France

0.5


Others

2.6




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87486"
      unitRef="pure">0.192</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_FinancialsSectorMember"
      decimals="INF"
      id="ixv-87487"
      unitRef="pure">0.167</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_ConsumerDiscretionarySectorMember"
      decimals="INF"
      id="ixv-87488"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_MaterialsSectorMember"
      decimals="INF"
      id="ixv-87489"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_EnergySectorMember"
      decimals="INF"
      id="ixv-87490"
      unitRef="pure">0.092</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87491"
      unitRef="pure">0.088</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87492"
      unitRef="pure">0.069</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87493"
      unitRef="pure">0.053</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_ConsumerStaplesSectorMember"
      decimals="INF"
      id="ixv-87494"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_MS_InformationTechnologySectorMember"
      decimals="INF"
      id="ixv-87495"
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    <oef:PctOfNav
      contextRef="C000048882_MS_CommunicationsSectorMember"
      decimals="INF"
      id="ixv-87496"
      unitRef="pure">0.028</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_AA_CommonStocks_Member"
      decimals="INF"
      id="ixv-87497"
      unitRef="pure">0.990</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87498"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87499"
      unitRef="pure">0.863</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87500"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_GD_GB_Member"
      decimals="INF"
      id="ixv-87501"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_GD_DE_Member"
      decimals="INF"
      id="ixv-87502"
      unitRef="pure">0.011</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_GD_PR_Member"
      decimals="INF"
      id="ixv-87503"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_GD_BE_Member"
      decimals="INF"
      id="ixv-87504"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_GD_ZM_Member"
      decimals="INF"
      id="ixv-87505"
      unitRef="pure">0.006</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87506"
      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
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      unitRef="pure">0.005</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
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      unitRef="pure">0.026</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000048882_ClassMember" id="ixv-14171">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


PG&amp;E Corp

1.2


&#160;


Vistra Corp

1.2


&#160;


Ventas Inc

1.0


&#160;


Global Payments Inc

1.0


&#160;


Molina Healthcare Inc

0.9


&#160;


Smurfit WestRock PLC

0.9


&#160;


Lithia Motors Inc Class A

0.9


&#160;


Lumentum Holdings Inc

0.8


&#160;


International Paper Co

0.8


&#160;


Lamb Weston Holdings Inc

0.8


&#160;


&#160;

9.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-87509"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_1_Member"
      decimals="INF"
      id="ixv-87510"
      unitRef="pure">0.012</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_2_Member"
      decimals="INF"
      id="ixv-87511"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_3_Member"
      decimals="INF"
      id="ixv-87512"
      unitRef="pure">0.010</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_4_Member"
      decimals="INF"
      id="ixv-87513"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_5_Member"
      decimals="INF"
      id="ixv-87514"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_6_Member"
      decimals="INF"
      id="ixv-87515"
      unitRef="pure">0.009</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_7_Member"
      decimals="INF"
      id="ixv-87516"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_8_Member"
      decimals="INF"
      id="ixv-87517"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000048882_TH_9_Member"
      decimals="INF"
      id="ixv-87518"
      unitRef="pure">0.008</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000048882_ClassMember" id="ixv-14296">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000048882_ClassMember" id="ixv-14302">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000048882_ClassMember" id="ixv-14306">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000048882_ClassMember" id="ixv-14309">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000048882_ClassMember" id="ixv-14313">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000048882_ClassMember" id="ixv-14324">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing &amp;amp; bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing &amp;amp; bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-14382">2024-10-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205048_ClassMember" id="ixv-14386">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205048_ClassMember" id="ixv-14397">Fidelity Advisor&#xae; High Income Advantage Fund</oef:FundName>
    <oef:ClassName contextRef="C000205048_ClassMember" id="ixv-14400">Fidelity Advisor&#xae; High Income Advantage Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205048_ClassMember" id="ixv-14404">FIQTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205048_ClassMember" id="ixv-14423">This annual shareholder report contains information about Fidelity Advisor&#xae; High Income Advantage Fund for the period November 1, 2023 to October 31, 2024.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205048_ClassMember" id="ixv-14425">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205048_ClassMember" id="ixv-14430">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205048_ClassMember" id="ixv-14432">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205048_ClassMember" id="ixv-14435">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205048_ClassMember" id="ixv-14438">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205048_ClassMember" id="ixv-14445">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:45%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:45%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:24%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:30%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.63&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205048_ClassMember"
      decimals="0"
      id="ixv-87519"
      unitRef="usd">69</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205048_ClassMember"
      decimals="INF"
      id="ixv-87520"
      unitRef="pure">0.0063</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205048_ClassMember" id="ixv-14487">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;High-yield bonds achieved a strong gain for the 12 months ending October 31, 2024, driven by a resilient economy and corporate profits, the perception that credit risk has fallen amid elevated coupon yields, and the expectation the Federal Reserve would pivot to cutting interest rates in late 2024.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, the fund's core investment in high-yield bonds rose 16.67% and contributed to performance versus the benchmark, the ICE BofA US High Yield/US High Yield Constrained Blend Index, for the fiscal year.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;By industry, security selection was the primary contributor, led by technology &amp;amp; electronics. Our picks in energy and financial services also boosted the fund's relative result.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;A non-benchmark stake in Nvidia gained 224% and was the top individual relative contributor. The company was the fund's largest holding at period end. The second-largest relative contributor was an overweight in Vistra (+69%), also a sizable position. Another notable relative contributor was a non-benchmark stake in Meta Platforms (+89%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the biggest detractor from performance versus the benchmark was the fund's position in cash. Security selection in banking hurt this period, as did our choices and an underweight in health care. Also hurting our result was security selection in consumer goods.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;The fund's non-benchmark stake in UiPath returned about -51% and was the biggest individual relative detractor. The second-largest relative detractor this period was avoiding CommScope, a benchmark component that gained 74%. Another notable relative detractor was a non-benchmark stake in JPMorgan Chase (+9%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Notable changes in positioning include decreased exposure to the banking industry and a higher allocation to technology &amp;amp; electronics.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205048_ClassMember" id="ixv-14514">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through October 31, 2024.
Initial investment of $10,000.
Class Z


$10,000

$9,622


$10,371


$10,661


$13,032


$11,668


$12,304



ICE&#xae; BofA&#xae; US High Yield Constrained Index


$10,000

$9,813


$10,630


$10,890


$12,058


$10,679


$11,299



Bloomberg U.S. Universal Bond Index


$10,000

$9,913


$11,039


$11,697


$11,754


$9,898


$10,016



&#160;

2018

2019

2020

2021

2022

2023

2024









</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205048_LG_ClassMember_7YR" id="ixv-14533">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-87521"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-87522"
      unitRef="usd">9622</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-87523"
      unitRef="usd">10371</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-87524"
      unitRef="usd">10661</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-87525"
      unitRef="usd">13032</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-87526"
      unitRef="usd">11668</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-87527"
      unitRef="usd">12304</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205048_LG_1_AdditionalIndexMember_7YR"
      id="ixv-14566">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;ICE&#xae; BofA&#xae; US High Yield Constrained Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87528"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87529"
      unitRef="usd">9813</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87530"
      unitRef="usd">10630</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87531"
      unitRef="usd">10890</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87532"
      unitRef="usd">12058</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87533"
      unitRef="usd">10679</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87534"
      unitRef="usd">11299</oef:AcctVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205048_LG_2_AdditionalIndexMember_7YR"
      id="ixv-14599">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Universal Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-87535"
      unitRef="usd">10000</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-87536"
      unitRef="usd">9913</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-87537"
      unitRef="usd">11039</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-87538"
      unitRef="usd">11697</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-87539"
      unitRef="usd">11754</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-87540"
      unitRef="usd">9898</oef:AcctVal>
    <oef:AcctVal
      contextRef="C000205048_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-87541"
      unitRef="usd">10016</oef:AcctVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205048_ClassMember" id="ixv-14669">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

18.20%

6.99%

6.35%


ICE&#xae; BofA&#xae; US High Yield Constrained Index

16.49%


4.37%


4.62%


Bloomberg U.S. Universal Bond Index

11.20%


0.18%


1.79%




A&#160; &#160;From October 2, 2018

Visit institutional.fidelity.com for more recent performance information.
&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-87542"
      unitRef="pure">0.1820</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-87543"
      unitRef="pure">0.0699</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_NoLoadClassMember_2023-11-01_2024-10-31"
      decimals="INF"
      id="ixv-87544"
      unitRef="pure">0.0635</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-87545"
      unitRef="pure">0.1649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-87546"
      unitRef="pure">0.0437</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-87547"
      unitRef="pure">0.0462</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-87548"
      unitRef="pure">0.1120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-87549"
      unitRef="pure">0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205048_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-87550"
      unitRef="pure">0.0179</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate contextRef="C000205048_ClassMember" id="ixv-14738">2018-10-02</oef:PerfInceptionDate>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205048_ClassMember" id="ixv-14755">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205048_ClassMember" id="ixv-14759">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205048_ClassMember" id="ixv-14765">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of October 31, 2024)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,310,946,691&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;717&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,652,978&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;29&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205048_InstantMember"
      decimals="0"
      id="ixv-87551"
      unitRef="usd">2310946691</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205048_InstantMember"
      decimals="INF"
      id="ixv-87552"
      unitRef="holding">717</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205048_ClassMember"
      decimals="0"
      id="ixv-87553"
      unitRef="usd">13652978</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205048_ClassMember"
      decimals="INF"
      id="ixv-87554"
      unitRef="pure">0.29</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205048_ClassMember" id="ixv-14840">
&#160;
BBB

4.8


BB

20.7


B

30.9


CCC,CC,C

6.6


Not Rated

2.9


Equities

22.3


Short-Term Investments and Net Other Assets (Liabilities)

11.8




QUALITY DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;


We have used ratings from Moody's Investors Service, Inc. Where Moody's&#xae; ratings are not available, we have used S&amp;P&#xae; ratings. All ratings are as of the date indicated and do not reflect subsequent changes.




&#160;
&#160;
Corporate Bonds

51.5


Common Stocks

20.1


Bank Loan Obligations

10.1


Preferred Securities

4.1


Alternative Funds

2.2


Asset-Backed Securities

0.2


Short-Term Investments and Net Other Assets (Liabilities)

11.8




ASSET ALLOCATION (% of Fund's net assets)


&#160;







United States

91.1


Canada

1.9


United Kingdom

1.8


France

1.4


Netherlands

0.5


China

0.5


Luxembourg

0.4


Zambia

0.4


Taiwan

0.3


Others

1.7




GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)


&#160;


&#160;







</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      id="ixv-87555"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205048_QD_BB_Member"
      decimals="INF"
      id="ixv-87556"
      unitRef="pure">0.207</oef:PctOfNav>
    <oef:PctOfNav
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      unitRef="pure">0.309</oef:PctOfNav>
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      id="ixv-87558"
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      unitRef="pure">0.029</oef:PctOfNav>
    <oef:PctOfNav
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      id="ixv-87560"
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    <oef:PctOfNav
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      id="ixv-87565"
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      id="ixv-87566"
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    <oef:PctOfNav
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      id="ixv-87569"
      unitRef="pure">0.911</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87570"
      unitRef="pure">0.019</oef:PctOfNav>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87571"
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    <oef:PctOfNav
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    <oef:PctOfNav
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      id="ixv-87573"
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    <oef:PctOfNav
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    <oef:LargestHoldingsTableTextBlock contextRef="C000205048_ClassMember" id="ixv-15065">TOP HOLDINGS
(% of Fund's net assets)

&#160;

&#160;


TransDigm Inc

2.6


&#160;


Fidelity Private Credit Company LLC

2.2


&#160;


Energy Transfer LP

2.1


&#160;


NVIDIA Corp

1.4


&#160;


Tenet Healthcare Corp

1.4


&#160;


LBM Acquisition LLC

1.2


&#160;


Altice France SA

1.1


&#160;


eG Global Finance PLC

1.1


&#160;


Carnival Corp

1.1


&#160;


Meta Platforms Inc Class A

1.1


&#160;


&#160;

15.3

&#160;



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    <oef:PctOfNav
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    <oef:PctOfNav
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    <oef:PctOfNav
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      id="ixv-87582"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-87585"
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    <oef:PctOfNav
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&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205048_ClassMember" id="ixv-15196">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;December 30, 2024 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205048_ClassMember" id="ixv-15200">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205048_ClassMember" id="ixv-15203">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205048_ClassMember" id="ixv-15207">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000205048_ClassMember" id="ixv-15218">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
</xbrl>
