<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:GLP="http://globalp.com/20240223"
  xmlns:dei="http://xbrl.sec.gov/dei/2023"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2023"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="glp-20240223.xsd" xlink:type="simple"/>
    <context id="AsOf2024-02-23">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001323468</identifier>
        </entity>
        <period>
            <startDate>2024-02-23</startDate>
            <endDate>2024-02-23</endDate>
        </period>
    </context>
    <context id="From2024-02-232024-02-23_custom_CommonUnitsRepresentingLimitedPartnerInterestsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001323468</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">GLP:CommonUnitsRepresentingLimitedPartnerInterestsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-02-23</startDate>
            <endDate>2024-02-23</endDate>
        </period>
    </context>
    <context id="From2024-02-232024-02-23_us-gaap_SeriesAPreferredStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001323468</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:SeriesAPreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-02-23</startDate>
            <endDate>2024-02-23</endDate>
        </period>
    </context>
    <context id="From2024-02-232024-02-23_us-gaap_SeriesBPreferredStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001323468</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:SeriesBPreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-02-23</startDate>
            <endDate>2024-02-23</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <unit id="USDPShares">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
            </unitNumerator>
            <unitDenominator>
                <measure>shares</measure>
            </unitDenominator>
        </divide>
    </unit>
    <dei:AmendmentFlag contextRef="AsOf2024-02-23" id="ixv-313">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="AsOf2024-02-23" id="ixv-314">0001323468</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="AsOf2024-02-23" id="ixv-358">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="AsOf2024-02-23" id="ixv-359">2024-02-23</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="AsOf2024-02-23" id="ixv-360">GLOBAL PARTNERS LP</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="AsOf2024-02-23" id="ixv-361">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="AsOf2024-02-23" id="ixv-362">001-32593</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="AsOf2024-02-23" id="ixv-363">74-3140887</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="AsOf2024-02-23" id="ixv-364">P.O. Box 9161</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="AsOf2024-02-23" id="ixv-365">800 South Street</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="AsOf2024-02-23" id="ixv-366">Waltham</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="AsOf2024-02-23" id="ixv-367">MA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="AsOf2024-02-23" id="ixv-368">02454-9161</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="AsOf2024-02-23" id="ixv-369">781</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="AsOf2024-02-23" id="ixv-370">894-8800</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="AsOf2024-02-23" id="ixv-371">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="AsOf2024-02-23" id="ixv-372">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="AsOf2024-02-23" id="ixv-373">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="AsOf2024-02-23" id="ixv-374">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="From2024-02-232024-02-23_custom_CommonUnitsRepresentingLimitedPartnerInterestsMember"
      id="ixv-375">Common Units representing limited partner interests</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2024-02-232024-02-23_custom_CommonUnitsRepresentingLimitedPartnerInterestsMember"
      id="ixv-376">GLP</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2024-02-232024-02-23_custom_CommonUnitsRepresentingLimitedPartnerInterestsMember"
      id="ixv-377">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesAPreferredStockMember"
      id="ixv-378">Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units representing limited partner     interests</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesAPreferredStockMember"
      id="ixv-379">GLP pr A</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesAPreferredStockMember"
      id="ixv-380">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesBPreferredStockMember"
      id="ixv-381">9.50% Series B Fixed Rate Cumulative Redeemable Perpetual Preferred Units representing limited partner interests</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesBPreferredStockMember"
      id="ixv-382">GLP pr B</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2024-02-232024-02-23_us-gaap_SeriesBPreferredStockMember"
      id="ixv-383">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="AsOf2024-02-23" id="ixv-384">false</dei:EntityEmergingGrowthCompany>
</xbrl>
