<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>450</ContextCount>
  <ElementCount>614</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>118</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>10</UnitCount>
  <MyReports>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100100 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100105 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100200 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedStatementsOfOperations</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100300 - Statement - Consolidated Statements of Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>Consolidated Statements of Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100400 - Statement - Consolidated Statements of Stockholders' Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedStatementsOfStockholdersEquityDeficit</Role>
      <ShortName>Consolidated Statements of Stockholders' Equity (Deficit)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100500 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>110101 - Disclosure - Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureDescriptionOfBusiness</Role>
      <ShortName>Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>110201 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>110301 - Disclosure - Reverse Recapitalization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureReverseRecapitalization</Role>
      <ShortName>Reverse Recapitalization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>110401 - Disclosure - Revenue Recognition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognition</Role>
      <ShortName>Revenue Recognition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>110501 - Disclosure - Marketable Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecurities</Role>
      <ShortName>Marketable Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>110601 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>110701 - Disclosure - Accounts Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNet</Role>
      <ShortName>Accounts Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>110801 - Disclosure - Inventory and Floor Plan Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayable</Role>
      <ShortName>Inventory and Floor Plan Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>110901 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>111001 - Disclosure - Lease Vehicles, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseVehiclesNet</Role>
      <ShortName>Lease Vehicles, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>111101 - Disclosure - Other Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssets</Role>
      <ShortName>Other Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>111201 - Disclosure - Long-term Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebt</Role>
      <ShortName>Long-term Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>111301 - Disclosure - Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpenses</Role>
      <ShortName>Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>111401 - Disclosure - Orange Grove Promissory Notes</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOrangeGrovePromissoryNotes</Role>
      <ShortName>Orange Grove Promissory Notes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>111501 - Disclosure - Other Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilities</Role>
      <ShortName>Other Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>111601 - Disclosure - Lease Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitments</Role>
      <ShortName>Lease Commitments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>111701 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>111801 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>111901 - Disclosure - Redeemable Convertible Preferred Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRedeemableConvertiblePreferredStock</Role>
      <ShortName>Redeemable Convertible Preferred Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>112001 - Disclosure - Stock-Based Compensation Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlan</Role>
      <ShortName>Stock-Based Compensation Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>112101 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>112201 - Disclosure - Net Loss Per Share Attributable to Common Stockholders</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholders</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>112301 - Disclosure - Concentrations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureConcentrations</Role>
      <ShortName>Concentrations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>112401 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>120202 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>130203 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>130303 - Disclosure - Reverse Recapitalization (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureReverseRecapitalizationTables</Role>
      <ShortName>Reverse Recapitalization (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureReverseRecapitalization</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>130403 - Disclosure - Revenue Recognition (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionTables</Role>
      <ShortName>Revenue Recognition (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureRevenueRecognition</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>130503 - Disclosure - Marketable Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesTables</Role>
      <ShortName>Marketable Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureMarketableSecurities</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>130603 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsTables</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstruments</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>130703 - Disclosure - Accounts Receivable, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNetTables</Role>
      <ShortName>Accounts Receivable, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>130803 - Disclosure - Inventory and Floor Plan Notes Payable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableTables</Role>
      <ShortName>Inventory and Floor Plan Notes Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayable</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>130903 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>131003 - Disclosure - Lease Vehicles, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseVehiclesNetTables</Role>
      <ShortName>Lease Vehicles, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLeaseVehiclesNet</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>131103 - Disclosure - Other Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetsTables</Role>
      <ShortName>Other Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherAssets</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>131203 - Disclosure - Long-term Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtTables</Role>
      <ShortName>Long-term Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLongTermDebt</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>131303 - Disclosure - Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpensesTables</Role>
      <ShortName>Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccruedExpenses</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>131503 - Disclosure - Other Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilitiesTables</Role>
      <ShortName>Other Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherLiabilities</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>131603 - Disclosure - Lease Commitments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsTables</Role>
      <ShortName>Lease Commitments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLeaseCommitments</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>132003 - Disclosure - Stock-Based Compensation Plan (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanTables</Role>
      <ShortName>Stock-Based Compensation Plan (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlan</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>132103 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>132203 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersTables</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholders</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>132303 - Disclosure - Concentrations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureConcentrationsTables</Role>
      <ShortName>Concentrations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureConcentrations</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>140101 - Disclosure - Description of Business (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureDescriptionOfBusinessDetails</Role>
      <ShortName>Description of Business (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureDescriptionOfBusiness</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>140201 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>140301 - Disclosure - Reverse Recapitalization (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureReverseRecapitalizationDetails</Role>
      <ShortName>Reverse Recapitalization (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureReverseRecapitalizationTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>140302 - Disclosure - Reverse Recapitalization - Recapitalization to Consolidated Statements of Stockholders' Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureReverseRecapitalizationRecapitalizationToConsolidatedStatementsOfStockholdersEquityDetails</Role>
      <ShortName>Reverse Recapitalization - Recapitalization to Consolidated Statements of Stockholders' Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>140303 - Disclosure - Reverse Recapitalization - Recapitalization to Consolidated Statements of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureReverseRecapitalizationRecapitalizationToConsolidatedStatementsOfOperationsDetails</Role>
      <ShortName>Reverse Recapitalization - Recapitalization to Consolidated Statements of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>140401 - Disclosure - Revenue Recognition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionDetails</Role>
      <ShortName>Revenue Recognition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureRevenueRecognitionTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>140402 - Disclosure - Revenue Recognition - Summary of Revenues and Cost of Sales (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionSummaryOfRevenuesAndCostOfSalesDetails</Role>
      <ShortName>Revenue Recognition - Summary of Revenues and Cost of Sales (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>140501 - Disclosure - Marketable Securities - Summary investments in fixed maturity debt securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryInvestmentsInFixedMaturityDebtSecuritiesDetails</Role>
      <ShortName>Marketable Securities - Summary investments in fixed maturity debt securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>140502 - Disclosure - Marketable Securities - Contractual maturity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesContractualMaturityDetails</Role>
      <ShortName>Marketable Securities - Contractual maturity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>140503 - Disclosure - Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryOfCompanySGrossUnrealizedLossesInFixedDebtSecuritiesDetails</Role>
      <ShortName>Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>140504 - Disclosure - Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryOfXostAndEstimatedFairValueOfInvestmentsInEquitySecuritiesDetails</Role>
      <ShortName>Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>140505 - Disclosure - Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesProceedsFromSalesAndMaturitesGrossRealiszedGainsGrossRealizedLossesNetRealizedGainsDetails</Role>
      <ShortName>Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>140601 - Disclosure - Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsSummariesOfFairValueMeasurementsAndHierarchyLevelDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>140602 - Disclosure - Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfChangesInEstimatedFairValueOfCompanySLevel3Details</Role>
      <ShortName>Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>140603 - Disclosure - Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsBlackScholesPricingModelIncludedSignificantUnobservableInputsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>140604 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>140701 - Disclosure - Accounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNetDetails</Role>
      <ShortName>Accounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccountsReceivableNetTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>140702 - Disclosure - Accounts Receivable, Net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNetAdditionalInformationDetails</Role>
      <ShortName>Accounts Receivable, Net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>140801 - Disclosure - Inventory and Floor Plan Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableDetails</Role>
      <ShortName>Inventory and Floor Plan Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>140802 - Disclosure - Inventory and Floor Plan Notes Payable - Additional Details (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableAdditionalDetailsDetails</Role>
      <ShortName>Inventory and Floor Plan Notes Payable - Additional Details (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>140901 - Disclosure - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetDetails</Role>
      <ShortName>Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>141001 - Disclosure - Lease Vehicles, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseVehiclesNetDetails</Role>
      <ShortName>Lease Vehicles, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLeaseVehiclesNetTables</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>141002 - Disclosure - Lease Vehicles, Net - Rental Receipts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseVehiclesNetRentalReceiptsDetails</Role>
      <ShortName>Lease Vehicles, Net - Rental Receipts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>141003 - Disclosure - Lease Vehicles, Net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseVehiclesNetAdditionalInformationDetails</Role>
      <ShortName>Lease Vehicles, Net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>141101 - Disclosure - Other Assets - Other Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetsOtherAssetsDetails</Role>
      <ShortName>Other Assets - Other Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>141102 - Disclosure - Other Assets - Deferred Acquisition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetsDeferredAcquisitionDetails</Role>
      <ShortName>Other Assets - Deferred Acquisition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>141201 - Disclosure - Long-term Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtDetails</Role>
      <ShortName>Long-term Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLongTermDebtTables</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>141202 - Disclosure - Long-term Debt - Weighted average assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtWeightedAverageAssumptionsDetails</Role>
      <ShortName>Long-term Debt - Weighted average assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>141203 - Disclosure - Long-term Debt - Stock warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtStockWarrantsDetails</Role>
      <ShortName>Long-term Debt - Stock warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>141204 - Disclosure - Long-term Debt - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtAdditionalInformationDetails</Role>
      <ShortName>Long-term Debt - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>141301 - Disclosure - Accrued Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpensesDetails</Role>
      <ShortName>Accrued Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccruedExpensesTables</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>141401 - Disclosure - Orange Grove Promissory Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOrangeGrovePromissoryNotesDetails</Role>
      <ShortName>Orange Grove Promissory Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOrangeGrovePromissoryNotes</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>141501 - Disclosure - Other Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilitiesDetails</Role>
      <ShortName>Other Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherLiabilitiesTables</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>141601 - Disclosure - Lease Commitments - Facility lease commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsFacilityLeaseCommitmentsDetails</Role>
      <ShortName>Lease Commitments - Facility lease commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>141602 - Disclosure - Lease Commitments - Payments due to third parties and the related expected future receipts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsPaymentsDueToThirdPartiesAndRelatedExpectedFutureReceiptsDetails</Role>
      <ShortName>Lease Commitments - Payments due to third parties and the related expected future receipts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>141603 - Disclosure - Lease Commitments - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsAdditionalInformationDetails</Role>
      <ShortName>Lease Commitments - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>141701 - Disclosure - Related Party Transactions - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRelatedPartyTransactionsAdditionalInformationDetails</Role>
      <ShortName>Related Party Transactions - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>141901 - Disclosure - Redeemable Convertible Preferred Stock - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRedeemableConvertiblePreferredStockAdditionalInformationDetails</Role>
      <ShortName>Redeemable Convertible Preferred Stock - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>142001 - Disclosure - Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to the shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanNumberOfOptionsOutstandingAndWeightedAverageExercisePriceRelatedToSharesDetails</Role>
      <ShortName>Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to the shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>142002 - Disclosure - Stock-Based Compensation Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanDetails</Role>
      <ShortName>Stock-Based Compensation Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanTables</ParentRole>
      <Position>90</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>142003 - Disclosure - Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanNumberOfOptionsOutstandingAndWeightedAverageExercisePriceRelatedToSharesSetAsideFor2017StockOptionPlan3Details</Role>
      <ShortName>Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>142101 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureIncomeTaxesTables</ParentRole>
      <Position>92</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>142102 - Disclosure - Income Taxes - Deferred income taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesDeferredIncomeTaxesDetails</Role>
      <ShortName>Income Taxes - Deferred income taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>142103 - Disclosure - Income Taxes - Valuation allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesValuationAllowanceDetails</Role>
      <ShortName>Income Taxes - Valuation allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>142104 - Disclosure - Income Taxes - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesAdditionalInformationDetails</Role>
      <ShortName>Income Taxes - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>142105 - Disclosure - Income Taxes - Income tax expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesIncomeTaxExpenseDetails</Role>
      <ShortName>Income Taxes - Income tax expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>142201 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersScheduleOfBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetails</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>142202 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfDilutedNetLossPerShareDetails</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>142301 - Disclosure - Concentrations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureConcentrationsDetails</Role>
      <ShortName>Concentrations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureConcentrationsTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>142401 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>200100 - Statement - Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Uncategorized</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>200105 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>200200 - Statement - Condensed Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedStatementsOfOperations</Role>
      <ShortName>Condensed Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>200300 - Statement - Condensed Consolidated Statements of Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>200400 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityDeficit</Role>
      <ShortName>Condensed Consolidated Statements of Stockholders' Equity (Deficit)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>200500 - Statement - Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>210101 - Disclosure - Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureDescriptionOfBusinesss</Role>
      <ShortName>Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>210201 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciess</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>210301 - Disclosure - Merger</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMerger</Role>
      <ShortName>Merger</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>210401 - Disclosure - Revenue Recognition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitions</Role>
      <ShortName>Revenue Recognition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>210501 - Disclosure - Marketable Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiess</Role>
      <ShortName>Marketable Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>210601 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentss</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>210701 - Disclosure - Accounts Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNets</Role>
      <ShortName>Accounts Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>210801 - Disclosure - Inventory and Floor Plan Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayables</Role>
      <ShortName>Inventory and Floor Plan Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>210901 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNets</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>211001 - Disclosure - Other Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetss</Role>
      <ShortName>Other Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>211101 - Disclosure - Long-term Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebts</Role>
      <ShortName>Long-term Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>211201 - Disclosure - Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpensess</Role>
      <ShortName>Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>118</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>211301 - Disclosure - Other Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilitiess</Role>
      <ShortName>Other Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>211401 - Disclosure - Lease Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentss</Role>
      <ShortName>Lease Commitments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>211501 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureCommitmentsAndContingenciess</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>211601 - Disclosure - Redeemable Convertible Preferred Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRedeemableConvertiblePreferredStocks</Role>
      <ShortName>Redeemable Convertible Preferred Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>211701 - Disclosure - Stock-Based Compensation Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlans</Role>
      <ShortName>Stock-Based Compensation Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>123</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>211801 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxess</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>124</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>211901 - Disclosure - Net Loss Per Share Attributable to Common Stockholders</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholderss</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>125</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>212001 - Disclosure - Concentrations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureConcentrationss</Role>
      <ShortName>Concentrations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>126</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>212101 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSubsequentEventss</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>127</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>220202 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPoliciess</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>128</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>230303 - Disclosure - Merger (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMergerTables</Role>
      <ShortName>Merger (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureMerger</ParentRole>
      <Position>129</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>230403 - Disclosure - Revenue Recognition (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionTabless</Role>
      <ShortName>Revenue Recognition (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureRevenueRecognition</ParentRole>
      <Position>130</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>230503 - Disclosure - Marketable Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesTabless</Role>
      <ShortName>Marketable Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureMarketableSecurities</ParentRole>
      <Position>131</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>230603 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsTabless</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstruments</ParentRole>
      <Position>132</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>230703 - Disclosure - Accounts Receivable, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNetTabless</Role>
      <ShortName>Accounts Receivable, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>133</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>230803 - Disclosure - Inventory and Floor Plan Notes Payable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableTabless</Role>
      <ShortName>Inventory and Floor Plan Notes Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayable</ParentRole>
      <Position>134</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>230903 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetTabless</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>135</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>231003 - Disclosure - Other Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetsTabless</Role>
      <ShortName>Other Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherAssets</ParentRole>
      <Position>136</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>231103 - Disclosure - Long-term Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtTabless</Role>
      <ShortName>Long-term Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLongTermDebt</ParentRole>
      <Position>137</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>231203 - Disclosure - Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpensesTabless</Role>
      <ShortName>Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccruedExpenses</ParentRole>
      <Position>138</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>231303 - Disclosure - Other Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilitiesTabless</Role>
      <ShortName>Other Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherLiabilities</ParentRole>
      <Position>139</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>231403 - Disclosure - Lease Commitments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsTabless</Role>
      <ShortName>Lease Commitments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLeaseCommitments</ParentRole>
      <Position>140</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R141.htm</HtmlFileName>
      <LongName>231703 - Disclosure - Stock-Based Compensation Plan (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanTabless</Role>
      <ShortName>Stock-Based Compensation Plan (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlan</ParentRole>
      <Position>141</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>231903 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersTabless</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholders</ParentRole>
      <Position>142</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>240101 - Disclosure - Description of Business (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureDescriptionOfBusinessDetailss</Role>
      <ShortName>Description of Business (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureDescriptionOfBusiness</ParentRole>
      <Position>143</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R144.htm</HtmlFileName>
      <LongName>240201 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetailss</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>144</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R145.htm</HtmlFileName>
      <LongName>240301 - Disclosure - Merger (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMergerDetails</Role>
      <ShortName>Merger (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureMergerTables</ParentRole>
      <Position>145</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R146.htm</HtmlFileName>
      <LongName>240302 - Disclosure - Merger - Merger warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMergerMergerWarrantsDetails</Role>
      <ShortName>Merger - Merger warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>146</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R147.htm</HtmlFileName>
      <LongName>240303 - Disclosure - Merger - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMergerAdditionalInformationDetails</Role>
      <ShortName>Merger - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>147</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R148.htm</HtmlFileName>
      <LongName>240401 - Disclosure - Revenue Recognition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionDetailss</Role>
      <ShortName>Revenue Recognition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureRevenueRecognitionTables</ParentRole>
      <Position>148</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R149.htm</HtmlFileName>
      <LongName>240402 - Disclosure - Revenue Recognition - Summary of Revenues and Cost of Sales (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRevenueRecognitionSummaryOfRevenuesAndCostOfSalesDetailss</Role>
      <ShortName>Revenue Recognition - Summary of Revenues and Cost of Sales (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>149</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R150.htm</HtmlFileName>
      <LongName>240501 - Disclosure - Marketable Securities - Summary investments in fixed maturity debt securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryInvestmentsInFixedMaturityDebtSecuritiesDetailss</Role>
      <ShortName>Marketable Securities - Summary investments in fixed maturity debt securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>150</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R151.htm</HtmlFileName>
      <LongName>240502 - Disclosure - Marketable Securities - Contractual maturity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesContractualMaturityDetailss</Role>
      <ShortName>Marketable Securities - Contractual maturity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>151</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R152.htm</HtmlFileName>
      <LongName>240503 - Disclosure - Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryOfCompanySGrossUnrealizedLossesInFixedDebtSecuritiesDetailss</Role>
      <ShortName>Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>152</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R153.htm</HtmlFileName>
      <LongName>240504 - Disclosure - Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesSummaryOfXostAndEstimatedFairValueOfInvestmentsInEquitySecuritiesDetailss</Role>
      <ShortName>Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>153</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R154.htm</HtmlFileName>
      <LongName>240505 - Disclosure - Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureMarketableSecuritiesProceedsFromSalesAndMaturitesGrossRealiszedGainsGrossRealizedLossesNetRealizedGainsDetailss</Role>
      <ShortName>Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>154</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R155.htm</HtmlFileName>
      <LongName>240601 - Disclosure - Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsSummariesOfFairValueMeasurementsAndHierarchyLevelDetailss</Role>
      <ShortName>Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>155</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R156.htm</HtmlFileName>
      <LongName>240602 - Disclosure - Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfChangesInEstimatedFairValueOfCompanySLevel3Detailss</Role>
      <ShortName>Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>156</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R157.htm</HtmlFileName>
      <LongName>240603 - Disclosure - Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsBlackScholesPricingModelIncludedSignificantUnobservableInputsDetailss</Role>
      <ShortName>Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>157</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R158.htm</HtmlFileName>
      <LongName>240604 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetailss</Role>
      <ShortName>Fair Value of Financial Instruments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>158</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R159.htm</HtmlFileName>
      <LongName>240701 - Disclosure - Accounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccountsReceivableNetDetailss</Role>
      <ShortName>Accounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccountsReceivableNetTables</ParentRole>
      <Position>159</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R160.htm</HtmlFileName>
      <LongName>240801 - Disclosure - Inventory and Floor Plan Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableDetailss</Role>
      <ShortName>Inventory and Floor Plan Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableTables</ParentRole>
      <Position>160</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R161.htm</HtmlFileName>
      <LongName>240802 - Disclosure - Inventory and Floor Plan Notes Payable - Additional Details (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureInventoryAndFloorPlanNotesPayableAdditionalDetailsDetailss</Role>
      <ShortName>Inventory and Floor Plan Notes Payable - Additional Details (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>161</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R162.htm</HtmlFileName>
      <LongName>240901 - Disclosure - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetDetailss</Role>
      <ShortName>Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosurePropertyAndEquipmentNetTables</ParentRole>
      <Position>162</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R163.htm</HtmlFileName>
      <LongName>241001 - Disclosure - Other Assets - Other Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherAssetsOtherAssetsDetailss</Role>
      <ShortName>Other Assets - Other Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>163</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R164.htm</HtmlFileName>
      <LongName>241101 - Disclosure - Long-term Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtDetailss</Role>
      <ShortName>Long-term Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureLongTermDebtTables</ParentRole>
      <Position>164</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R165.htm</HtmlFileName>
      <LongName>241102 - Disclosure - Long-term Debt - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLongTermDebtAdditionalInformationDetailss</Role>
      <ShortName>Long-term Debt - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>165</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R166.htm</HtmlFileName>
      <LongName>241201 - Disclosure - Accrued Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureAccruedExpensesDetailss</Role>
      <ShortName>Accrued Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureAccruedExpensesTables</ParentRole>
      <Position>166</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R167.htm</HtmlFileName>
      <LongName>241301 - Disclosure - Other Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureOtherLiabilitiesDetailss</Role>
      <ShortName>Other Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureOtherLiabilitiesTables</ParentRole>
      <Position>167</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R168.htm</HtmlFileName>
      <LongName>241401 - Disclosure - Lease Commitments - Facility lease commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsFacilityLeaseCommitmentsDetailss</Role>
      <ShortName>Lease Commitments - Facility lease commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>168</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R169.htm</HtmlFileName>
      <LongName>241402 - Disclosure - Lease Commitments - Payments due to third parties and the related expected future receipts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsPaymentsDueToThirdPartiesAndRelatedExpectedFutureReceiptsDetailss</Role>
      <ShortName>Lease Commitments - Payments due to third parties and the related expected future receipts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>169</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R170.htm</HtmlFileName>
      <LongName>241403 - Disclosure - Lease Commitments - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureLeaseCommitmentsAdditionalInformationDetailss</Role>
      <ShortName>Lease Commitments - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>170</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R171.htm</HtmlFileName>
      <LongName>241601 - Disclosure - Redeemable Convertible Preferred Stock - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureRedeemableConvertiblePreferredStockAdditionalInformationDetailss</Role>
      <ShortName>Redeemable Convertible Preferred Stock - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>171</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R172.htm</HtmlFileName>
      <LongName>241701 - Disclosure - Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to the shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanNumberOfOptionsOutstandingAndWeightedAverageExercisePriceRelatedToSharesDetailss</Role>
      <ShortName>Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to the shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>172</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R173.htm</HtmlFileName>
      <LongName>241702 - Disclosure - Stock-Based Compensation Plan - Stock Option Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanStockOptionPlanDetails</Role>
      <ShortName>Stock-Based Compensation Plan - Stock Option Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>173</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R174.htm</HtmlFileName>
      <LongName>241703 - Disclosure - Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanNumberOfOptionsOutstandingAndWeightedAverageExercisePriceRelatedToSharesSetAsideFor2017StockOptionPlan3Detailss</Role>
      <ShortName>Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>174</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R175.htm</HtmlFileName>
      <LongName>241704 - Disclosure - Stock-Based Compensation Plan - Earnout Restricted Stock Units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureStockBasedCompensationPlanEarnoutRestrictedStockUnitsDetails</Role>
      <ShortName>Stock-Based Compensation Plan - Earnout Restricted Stock Units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>175</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R176.htm</HtmlFileName>
      <LongName>241801 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureIncomeTaxesDetailss</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureIncomeTaxesTables</ParentRole>
      <Position>176</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R177.htm</HtmlFileName>
      <LongName>241901 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersScheduleOfBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetailss</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>177</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R178.htm</HtmlFileName>
      <LongName>241902 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureNetLossPerShareAttributableToCommonStockholdersScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfDilutedNetLossPerShareDetailss</Role>
      <ShortName>Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>178</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R179.htm</HtmlFileName>
      <LongName>242001 - Disclosure - Concentrations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureConcentrationsDetailss</Role>
      <ShortName>Concentrations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureConcentrationsTables</ParentRole>
      <Position>179</Position>
    </Report>
    <Report instance="lotz-20210331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R180.htm</HtmlFileName>
      <LongName>242101 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.carlotz.com/role/DisclosureSubsequentEventsDetailss</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.carlotz.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>180</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>lotz-20210331.xml</File>
    <File>lotz-20210331.xsd</File>
    <File>lotz-20210331_cal.xml</File>
    <File>lotz-20210331_def.xml</File>
    <File>lotz-20210331_lab.xml</File>
    <File>lotz-20210331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
