<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>637</ContextCount>
  <ElementCount>25</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>62</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>3</UnitCount>
  <MyReports>
    <Report instance="filing9906.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>030000 - Disclosure - Form N-CSR Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/NcsrCover</Role>
      <ShortName>Form N-CSR Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="filing9906.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>030001 - Disclosure - Shareholder Report</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReport</Role>
      <ShortName>Shareholder Report</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="filing9906.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>040020 - Disclosure - Shareholder Report, Holdings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails</Role>
      <ShortName>Shareholder Report, Holdings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="N-CSRS" isDefinitelyNotFs="true" isNcsr="true" isOEF="true" isRRorOEF="true" isUsgaap="true" original="filing9906.htm">filing9906.htm</File>
    <File>fmr-20250929.xsd</File>
  </InputFiles>
  <SupplementalFiles>
    <File>img111668_2.jpg</File>
    <File>img111669_2.jpg</File>
    <File>img111670_2.jpg</File>
    <File>img111671_2.jpg</File>
    <File>img111672_2.jpg</File>
    <File>img111673_2.jpg</File>
    <File>img111674_2.jpg</File>
    <File>img111676_2.jpg</File>
    <File>img111678_2.jpg</File>
    <File>img111699_2.jpg</File>
    <File>img111700_2.jpg</File>
    <File>img111701_2.jpg</File>
    <File>img111702_2.jpg</File>
    <File>img111703_2.jpg</File>
    <File>img111704_2.jpg</File>
    <File>img111705_2.jpg</File>
    <File>img111716_2.jpg</File>
    <File>img111717_2.jpg</File>
    <File>img111718_2.jpg</File>
    <File>img111943_1.jpg</File>
    <File>img111943_2.jpg</File>
    <File>img111943_4.jpg</File>
    <File>img111945_1.jpg</File>
    <File>img111945_2.jpg</File>
    <File>img111945_4.jpg</File>
    <File>img111949_1.jpg</File>
    <File>img111949_2.jpg</File>
    <File>img111949_4.jpg</File>
    <File>img111950_1.jpg</File>
    <File>img111950_2.jpg</File>
    <File>img111950_4.jpg</File>
    <File>img111953_1.jpg</File>
    <File>img111953_2.jpg</File>
    <File>img111953_4.jpg</File>
    <File>img111954_1.jpg</File>
    <File>img111954_2.jpg</File>
    <File>img111954_4.jpg</File>
    <File>img2115_20250731_1.jpg</File>
    <File>img2115_20250731_AA.jpg</File>
    <File>img2115_20250731_GD.jpg</File>
    <File>img23_20250731_1.jpg</File>
    <File>img23_20250731_AA.jpg</File>
    <File>img23_20250731_GD.jpg</File>
    <File>img2453_20250731_1.jpg</File>
    <File>img2453_20250731_AA.jpg</File>
    <File>img2453_20250731_GD.jpg</File>
    <File>img2461_20250731_1.jpg</File>
    <File>img2461_20250731_AA.jpg</File>
    <File>img2461_20250731_GD.jpg</File>
    <File>img2956_20250731_1.jpg</File>
    <File>img2956_20250731_AA.jpg</File>
    <File>img2956_20250731_GD.jpg</File>
    <File>img3457_20250731_1.jpg</File>
    <File>img3457_20250731_AA.jpg</File>
    <File>img3457_20250731_GD.jpg</File>
    <File>img5648_20250731_1.jpg</File>
    <File>img5648_20250731_AA.jpg</File>
    <File>img5648_20250731_GD.jpg</File>
    <File>img5649_20250731_1.jpg</File>
    <File>img5649_20250731_AA.jpg</File>
    <File>img5649_20250731_GD.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="38">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="43">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="880">http://xbrl.sec.gov/oef/2024q3</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
