<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:mstr="http://www.strategysoftware.com/20260504"
  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="mstr-20260504.xsd" xlink:type="simple"/>
    <context id="C_a3d1d005-76a3-42ab-8835-28d6067f3c52">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:VariableRateSeriesAPerpetualStretchPreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_e8247fb5-87e8-46ea-86c7-7471e9304326">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M800SeriesAPerpetualStrikePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_ebab0c25-fac6-41c5-ba8c-f76ff1155f71">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M1000SeriesAPerpetualStrifePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_fb9e2561-25ee-440d-8509-863954569a9f">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M1000SeriesAPerpetualStridePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_09c1981d-d784-420a-9349-65de792e5af2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
        </entity>
        <period>
            <startDate>2026-05-04</startDate>
            <endDate>2026-05-04</endDate>
        </period>
    </context>
    <context id="C_6dd88cb6-fa98-43fc-b538-73ed99401794">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_f2b37426-5461-4f6c-a336-b1a8946099b4">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_57f92dba-30ec-424a-a422-a97ac58176c2">0001050446</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_4afd716c-ee2b-4dd8-9d02-736b397c9825">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="C_09c1981d-d784-420a-9349-65de792e5af2"
      id="F_a03c64ee-c609-4993-b775-81cd588f9a01">2026-06-22</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_8b4a36b8-d61c-4fbc-adc5-4b754ada551e">STRATEGY INC </dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_b3ee21eb-16a7-495f-a0eb-d0cb83f583a6">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_840dabc9-6bf6-46d7-abec-0d76926df8ae">001-42509</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_28a16c06-bfeb-4fa6-b8f1-d0f12f9857a4">51-0323571</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_6899ca70-dbf5-4f8e-9068-3663cfafab85">1850 Towers Crescent Plaza</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_bc5c8578-4877-4339-8ce0-d6dc0fcf2d9a">Tysons Corner</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_d70e5c3d-6a35-467f-bff3-e550d60220cb">VA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_30edb298-3540-43cc-b489-45624a664be4">22182</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_e749b3e3-c090-42ce-a301-f568c3039d03">(703)</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_207be827-4b81-4bae-8387-b978acf3064c">848-8600</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_eebace58-55a2-470d-abc6-65266aea7236">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_ddb1b9b8-b2a8-4bb7-9e2b-12c94dbac7fb">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_0f0a3b8c-e7e7-4423-9b87-5e7a1ad292a7">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_af3f2796-1aa0-4b12-b770-388be1a10436">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="C_ebab0c25-fac6-41c5-ba8c-f76ff1155f71"
      id="F_51b2e2b2-61fc-4c07-8870-21f9e549a212">10.00% Series A Perpetual Strife Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_ebab0c25-fac6-41c5-ba8c-f76ff1155f71"
      id="F_9e00fd32-95f3-4694-a58a-4d75d2ae90c0">STRF</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_ebab0c25-fac6-41c5-ba8c-f76ff1155f71"
      id="F_ce48ac04-a9a0-45c2-b889-d8684408f653">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_a3d1d005-76a3-42ab-8835-28d6067f3c52"
      id="F_fbcecf3c-4183-44b2-840a-6599742c031b">Variable Rate Series A Perpetual Stretch Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_a3d1d005-76a3-42ab-8835-28d6067f3c52"
      id="F_bfc604d4-eed6-4f26-88f7-07e588597ded">STRC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_a3d1d005-76a3-42ab-8835-28d6067f3c52"
      id="F_5c60159b-618c-43e1-98c0-1e3ef9803095">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_e8247fb5-87e8-46ea-86c7-7471e9304326"
      id="F_89d14199-e8b5-4cf1-8273-08a513c4715a">8.00% Series A Perpetual Strike Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_e8247fb5-87e8-46ea-86c7-7471e9304326"
      id="F_b7bdf192-d018-42ef-b0eb-000f9da30389">STRK</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_e8247fb5-87e8-46ea-86c7-7471e9304326"
      id="F_0f04b261-7e64-4ddd-adea-a1052bbd5f8e">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_fb9e2561-25ee-440d-8509-863954569a9f"
      id="F_3316ea0c-32b3-4d52-8f2d-69f1b9f6cdaf">10.00% Series A Perpetual Stride Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_fb9e2561-25ee-440d-8509-863954569a9f"
      id="F_351e4a5a-6106-4191-b066-6a96780c28d1">STRD</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_fb9e2561-25ee-440d-8509-863954569a9f"
      id="F_0f10310c-ed33-4e9c-b0d0-090f4301eac1">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_6dd88cb6-fa98-43fc-b538-73ed99401794"
      id="F_44269c4f-6f96-49aa-ac93-6bd0677d8561">Class A common stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_6dd88cb6-fa98-43fc-b538-73ed99401794"
      id="F_00bb32b5-2e86-421d-aae7-5fd05f02f118">MSTR</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_6dd88cb6-fa98-43fc-b538-73ed99401794"
      id="F_25a60b80-b6d0-4e01-90dd-8418c3a2d1e2">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="C_ad7b10dc-cbe1-4c7a-82de-e594abcea438"
      id="F_d5f687d5-f5a6-471f-a937-279b4280ce06">false</dei:EntityEmergingGrowthCompany>
</xbrl>
