<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:floc="http://flowco-inc.com/20261030"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2026"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="floc-20261030.xsd" xlink:type="simple"/>
    <context id="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002035149</identifier>
        </entity>
        <period>
            <startDate>2026-10-30</startDate>
            <endDate>2026-10-30</endDate>
        </period>
    </context>
    <context id="C_6e1da2dc-6f11-4695-9544-396d07ecbebb">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002035149</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">floc:CommonClassAOneMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-30</startDate>
            <endDate>2026-10-30</endDate>
        </period>
    </context>
    <context id="C_72e651d5-d2ae-4b46-8b6a-701415767de1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002035149</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassAMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-30</startDate>
            <endDate>2026-10-30</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_3bf2fc73-9a23-4c08-a58c-3161f26ea852">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_2d091365-516f-495f-8625-1aa1ddb80f74">0002035149</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_63267fa7-d19f-44b8-a654-9db3394fe4b8">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_4278bb29-9ab7-4dd5-ba31-bbcf2fa8ef53">2026-10-30</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_1e781817-9afb-4718-9ff4-ccab2b33d7a7">Flowco Holdings Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_a1e0dcd0-f22b-472c-a654-42e407e10a85">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_557736e2-40e0-40a0-b674-869e2685d54c">001-42477</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_b6818966-9583-45a8-b2e3-e234655237ac">99-4382473</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_d9682292-7b1a-49df-8c0f-a52dd9bb4aa3">1300 Post Oak Blvd.</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_201544bd-457c-4064-ad70-ce4ad1bf0e07">Suite 450</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_4286894f-cdc6-4edf-b851-15428d75bbe0">Houston</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_6296c0fb-54f3-4390-b467-bfc41f9a1227">TX</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_116286bb-0a50-43ac-9c45-93d5f726c009">77056</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_9dc57e1f-5da9-4624-8614-d66a704afc07">713</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_fb4780fe-672d-47f4-99cd-0f2598f9aefe">997-4877</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_9945db47-1c65-4ff6-9202-bbec85cd515e">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_c43e0647-377a-43d2-9401-c61524e19cc5">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_4015c537-98c1-4910-984e-5e2d80b49417">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_8a0e8ad8-2d52-42c5-8386-c805c40a3419">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="C_72e651d5-d2ae-4b46-8b6a-701415767de1"
      id="F_cb4b3b74-3958-45c4-a758-a0ae651ca1d0">Class A Common Stock, $0.0001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_72e651d5-d2ae-4b46-8b6a-701415767de1"
      id="F_29b7512f-0ebc-4ba4-9582-22607f05729c">FLOC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_72e651d5-d2ae-4b46-8b6a-701415767de1"
      id="F_49d8b381-2aa9-47e0-95d6-2bae842f972b">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_6e1da2dc-6f11-4695-9544-396d07ecbebb"
      id="F_c0a4c4ae-e38e-453c-b5a6-f88a4ff3d298">Class A Common Stock, $0.0001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_6e1da2dc-6f11-4695-9544-396d07ecbebb"
      id="F_8ce7d4bc-67ff-491d-b945-921f01a15a72">FLOC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_6e1da2dc-6f11-4695-9544-396d07ecbebb"
      id="F_17296ff7-5f21-474e-a6a0-77fb8e6cf137">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_74fb6083-5376-45b6-b637-ce3ee75f44d7">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod
      contextRef="C_69cbca9e-d9c3-49c5-bce9-411ddf559acf"
      id="F_cc0f3ebb-7838-4722-9526-006a94192a40">false</dei:EntityExTransitionPeriod>
</xbrl>
