<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:country="http://xbrl.sec.gov/country/2024"
  xmlns:dei="http://xbrl.sec.gov/dei/2024"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:rxp="http://xbrl.sec.gov/rxp/2024"
  xmlns:uslm="http://uslm.com/20231231"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="uslm-20231231.xsd" xlink:type="simple"/>
    <context id="Duration_1_1_2023_To_12_31_2023_rxp_CountryAxis_country_US_rxp_GovernmentAxis_uslm_UnitedStatesFederalGovernmentMember_ilYP2IodoE2ghfhATcz0vQ">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000082020</identifier>
            <segment>
                <xbrldi:explicitMember dimension="rxp:CountryAxis">country:US</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="rxp:GovernmentAxis">uslm:UnitedStatesFederalGovernmentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <context id="Duration_1_1_2023_To_12_31_2023_rxp_ProjectAxis_uslm_AllExtractionProjectsMember_faNhsV7au0CilikiqQblIQ">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000082020</identifier>
            <segment>
                <xbrldi:explicitMember dimension="rxp:ProjectAxis">uslm:AllExtractionProjectsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <context id="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000082020</identifier>
            <segment>
                <xbrldi:typedMember dimension="rxp:PmtAxis">
                    <rxp:pmt>1</rxp:pmt>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <context id="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000082020</identifier>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <unit id="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">
        <measure>iso4217:USD</measure>
    </unit>
    <dei:DocumentType
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_weHrU8QcZEabIJARhJka5Q_1_1">2.01 SD</dei:DocumentType>
    <dei:AmendmentFlag
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_kYD1AwAvqkKkenR6S_h4Fg_2_1">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_PlA0jw7gAU2R1DcJ7QYarQ_4_1">0000082020</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_yp5-y2OD5E6KyxPMcCBQAg_5_1">UNITED STATES LIME &amp; MINERALS INC</dei:EntityRegistrantName>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_LdQEmX0hiEa1m9r5NME3Gg_6_1">2023-12-31</dei:DocumentPeriodEndDate>
    <dei:EntityReportingCurrencyISOCode
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      id="Tc_cLvh607cFkGPSN1NFFFktQ_7_1">USD</dei:EntityReportingCurrencyISOCode>
    <rxp:Taxes
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_ProjectAxis_uslm_AllExtractionProjectsMember_faNhsV7au0CilikiqQblIQ"
      decimals="-3"
      id="Tc_Gcbq-FHA9U6l-bl-HLhlHg_3_3"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:Taxes>
    <rxp:TotalPayments
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_ProjectAxis_uslm_AllExtractionProjectsMember_faNhsV7au0CilikiqQblIQ"
      decimals="-3"
      id="Tc_EnW-dytZp0mz04O61Kxotw_3_18"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:TotalPayments>
    <rxp:Taxes
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      decimals="-3"
      id="Tc_COzrQOMfcUKj68-aQCA19Q_4_3"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:Taxes>
    <rxp:TotalPayments
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      decimals="-3"
      id="Tc_GW76-YwsqUm-WfrV1iob2w_4_18"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:TotalPayments>
    <rxp:Taxes
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_CountryAxis_country_US_rxp_GovernmentAxis_uslm_UnitedStatesFederalGovernmentMember_ilYP2IodoE2ghfhATcz0vQ"
      decimals="-3"
      id="Tc_etq-xAfneUmDDO6hXMIkCg_3_3"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:Taxes>
    <rxp:TotalPayments
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_CountryAxis_country_US_rxp_GovernmentAxis_uslm_UnitedStatesFederalGovernmentMember_ilYP2IodoE2ghfhATcz0vQ"
      decimals="-3"
      id="Tc_O0x3ZqHURE-G0d4Njr85wQ_3_18"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:TotalPayments>
    <rxp:Taxes
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      decimals="-3"
      id="Tc_sgAndFJrFkO_T5SoGNgO_g_4_3"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:Taxes>
    <rxp:TotalPayments
      contextRef="Duration_1_1_2023_To_12_31_2023_uroG4pEyuEC28AiDEyCTBA"
      decimals="-3"
      id="Tc_fUZ_DSWeaEaqckU0y7V8Lg_4_18"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:TotalPayments>
    <rxp:Co
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_E7JDWYAW_EW2kkl5PkP2TQ">country:US</rxp:Co>
    <rxp:P
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_I9kyG8imBkWOaplZRSi2_g">rxp:Taxes</rxp:P>
    <rxp:Gv
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_3pzS3X9nv0iBX73dgSzuKg">uslm:UnitedStatesFederalGovernmentMember</rxp:Gv>
    <rxp:A
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      decimals="-3"
      id="Tc_Iywj8BRjtkKsgRGhhQK9aQ_3_3"
      unitRef="Unit_Standard_USD_ZZWEy7Vh6kivnyUZSsykRQ">17300000</rxp:A>
    <rxp:Pr
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_P8fFZNvwkEGvcGswtQRwVA">uslm:AllExtractionProjectsMember</rxp:Pr>
    <rxp:M
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_iTHROnn9I06CutzfKXrumQ">Open Pit</rxp:M>
    <rxp:R
      contextRef="Duration_1_1_2023_To_12_31_2023_rxp_PmtAxis_uslm_cnst_positiveinteger_1_DiMLovfluEmQIOzl_-nvPg"
      id="Hidden_i74HTfVpjUy8ku5EoeRM1w">uslm:LimestoneMineralMember</rxp:R>
</xbrl>