<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>158</ContextCount>
  <ElementCount>389</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>50</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>75000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>75010 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_StatementConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>75020 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>75030 - Statement - Consolidated Statements of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_StatementConsolidatedStatementsOfIncome</Role>
      <ShortName>Consolidated Statements of Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>75040 - Statement - Consolidated Statements of Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_StatementConsolidatedStatementsOfStockholdersEquity</Role>
      <ShortName>Consolidated Statements of Stockholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>75050 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995457 - Disclosure - Cybersecurity Risk Management, Strategy and Governance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/DisclosureCybersecurityRiskManagementStrategyAndGovernance</Role>
      <ShortName>Cybersecurity Risk Management, Strategy and Governance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995467 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995477 - Disclosure - Revenue Recognition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognition</Role>
      <ShortName>Revenue Recognition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995487 - Disclosure - Stock Options and Stock-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensation</Role>
      <ShortName>Stock Options and Stock-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995497 - Disclosure - Property and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosurePropertyAndEquipment</Role>
      <ShortName>Property and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995507 - Disclosure - Accounts and Income Taxes Payable and Accrued Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureAccountsAndIncomeTaxesPayableAndAccruedLiabilities</Role>
      <ShortName>Accounts and Income Taxes Payable and Accrued Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995517 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995527 - Disclosure - Employee Stock Purchase Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureEmployeeStockPurchasePlan</Role>
      <ShortName>Employee Stock Purchase Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995537 - Disclosure - Treasury Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureTreasuryStock</Role>
      <ShortName>Treasury Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995547 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995557 - Disclosure - Contingencies and Legal Proceedings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureContingenciesAndLegalProceedings</Role>
      <ShortName>Contingencies and Legal Proceedings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995567 - Disclosure - Retirement Savings Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRetirementSavingsPlan</Role>
      <ShortName>Retirement Savings Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995597 - Disclosure - Segment Reporting</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSegmentReporting</Role>
      <ShortName>Segment Reporting</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995607 - Disclosure - Other Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureOtherIntangibleAssets</Role>
      <ShortName>Other Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995627 - Disclosure - Schedule II - Valuation and Qualifying Accounts</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureScheduleIIValuationAndQualifyingAccounts</Role>
      <ShortName>Schedule II - Valuation and Qualifying Accounts</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995637 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995647 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995657 - Disclosure - Revenue Recognition (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognitionTables</Role>
      <ShortName>Revenue Recognition (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognition</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995667 - Disclosure - Stock Options and Stock-Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationTables</Role>
      <ShortName>Stock Options and Stock-Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensation</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995677 - Disclosure - Property and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosurePropertyAndEquipmentTables</Role>
      <ShortName>Property and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosurePropertyAndEquipment</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995687 - Disclosure - Accounts and Income Taxes Payable and Accrued Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureAccountsAndIncomeTaxesPayableAndAccruedLiabilitiesTables</Role>
      <ShortName>Accounts and Income Taxes Payable and Accrued Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureAccountsAndIncomeTaxesPayableAndAccruedLiabilities</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995697 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxes</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995707 - Disclosure - Employee Stock Purchase Plan (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureEmployeeStockPurchasePlanTables</Role>
      <ShortName>Employee Stock Purchase Plan (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureEmployeeStockPurchasePlan</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995717 - Disclosure - Treasury Stock (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureTreasuryStockTables</Role>
      <ShortName>Treasury Stock (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureTreasuryStock</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995727 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeases</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995737 - Disclosure - Segment Reporting (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSegmentReportingTables</Role>
      <ShortName>Segment Reporting (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSegmentReporting</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995747 - Disclosure - Other Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureOtherIntangibleAssetsTables</Role>
      <ShortName>Other Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureOtherIntangibleAssets</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995767 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995777 - Disclosure - Summary of Significant Accounting Policies - Schedule of Estimated Economic Useful Lives of Property and Equipment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfEstimatedEconomicUsefulLivesOfPropertyAndEquipmentDetail</Role>
      <ShortName>Summary of Significant Accounting Policies - Schedule of Estimated Economic Useful Lives of Property and Equipment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995787 - Disclosure - Summary of Significant Accounting Policies - Schedule of Earnings Per Share Basic and Diluted (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfEarningsPerShareBasicAndDilutedDetail</Role>
      <ShortName>Summary of Significant Accounting Policies - Schedule of Earnings Per Share Basic and Diluted (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995797 - Disclosure - Revenue Recognition - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognitionAdditionalInformationDetail</Role>
      <ShortName>Revenue Recognition - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995807 - Disclosure - Revenue Recognition - Schedule of Revenues Disaggregated by Service Line (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognitionScheduleOfRevenuesDisaggregatedByServiceLineDetail</Role>
      <ShortName>Revenue Recognition - Schedule of Revenues Disaggregated by Service Line (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995817 - Disclosure - Revenue Recognition - Schedule of Accounts Receivable, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognitionScheduleOfAccountsReceivableNetDetail</Role>
      <ShortName>Revenue Recognition - Schedule of Accounts Receivable, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995827 - Disclosure - Revenue Recognition - Schedule of Deferred Revenues Balance as of Transition Date and Significant Activity Affecting Deferred Revenues (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRevenueRecognitionScheduleOfDeferredRevenuesBalanceAsOfTransitionDateAndSignificantActivityAffectingDeferredRevenuesDetail</Role>
      <ShortName>Revenue Recognition - Schedule of Deferred Revenues Balance as of Transition Date and Significant Activity Affecting Deferred Revenues (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>995837 - Disclosure - Revenue Recognition - Additional Information (Detail 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail1</Role>
      <ShortName>Revenue Recognition - Additional Information (Detail 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>995847 - Disclosure - Stock Options and Stock-Based Compensation - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationAdditionalInformationDetail</Role>
      <ShortName>Stock Options and Stock-Based Compensation - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>995857 - Disclosure - Stock Options and Stock-Based Compensation - Weighted Average Assumptions (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationWeightedAverageAssumptionsDetail</Role>
      <ShortName>Stock Options and Stock-Based Compensation - Weighted Average Assumptions (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>995867 - Disclosure - Stock Options and Stock-Based Compensation - Stock Compensation Expense for Time Based Options and Performance Based Options (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationStockCompensationExpenseForTimeBasedOptionsAndPerformanceBasedOptionsDetail</Role>
      <ShortName>Stock Options and Stock-Based Compensation - Stock Compensation Expense for Time Based Options and Performance Based Options (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>995877 - Disclosure - Stock Options and Stock-Based Compensation - Stock Options Outstanding and Exercisable (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationStockOptionsOutstandingAndExercisableDetail</Role>
      <ShortName>Stock Options and Stock-Based Compensation - Stock Options Outstanding and Exercisable (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>995887 - Disclosure - Stock Options and Stock-Based Compensation - Outstanding Options (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureStockOptionsAndStockBasedCompensationOutstandingOptionsDetail</Role>
      <ShortName>Stock Options and Stock-Based Compensation - Outstanding Options (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>995897 - Disclosure - Property and Equipment - Property and Equipment, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosurePropertyAndEquipmentPropertyAndEquipmentNetDetail</Role>
      <ShortName>Property and Equipment - Property and Equipment, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>995907 - Disclosure - Property and Equipment - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosurePropertyAndEquipmentAdditionalInformationDetail</Role>
      <ShortName>Property and Equipment - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>995917 - Disclosure - Accounts and Income Taxes Payable and Accrued Liabilities - Accounts and Income Taxes Payable (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureAccountsAndIncomeTaxesPayableAndAccruedLiabilitiesAccountsAndIncomeTaxesPayableDetail</Role>
      <ShortName>Accounts and Income Taxes Payable and Accrued Liabilities - Accounts and Income Taxes Payable (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>995927 - Disclosure - Accounts and Income Taxes Payable and Accrued Liabilities - Accrued Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureAccountsAndIncomeTaxesPayableAndAccruedLiabilitiesAccruedLiabilitiesDetail</Role>
      <ShortName>Accounts and Income Taxes Payable and Accrued Liabilities - Accrued Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>995937 - Disclosure - Income Taxes - Summary of Income Tax Provision (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfIncomeTaxProvisionDetail</Role>
      <ShortName>Income Taxes - Summary of Income Tax Provision (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>995947 - Disclosure - Income Taxes - Summary of Reconciliation Income Tax Provision from the Statutory Federal Income Tax Rate (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfReconciliationIncomeTaxProvisionFromStatutoryFederalIncomeTaxRateDetail</Role>
      <ShortName>Income Taxes - Summary of Reconciliation Income Tax Provision from the Statutory Federal Income Tax Rate (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>995957 - Disclosure - Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfDeferredTaxAssetsAndLiabilitiesDetail</Role>
      <ShortName>Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>995967 - Disclosure - Income Taxes - Summary of Cash Paid for Income Taxes (Net of Refunds) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/DisclosureIncomeTaxesSummaryOfCashPaidForIncomeTaxesNetOfRefundsDetails</Role>
      <ShortName>Income Taxes - Summary of Cash Paid for Income Taxes (Net of Refunds) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>995977 - Disclosure - Income Taxes - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetail</Role>
      <ShortName>Income Taxes - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>995987 - Disclosure - Income Taxes - Reconciliation of the Financial Statement Recognition and Measurement of Uncertain Tax Positions During the Current Fiscal Year (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureIncomeTaxesReconciliationOfFinancialStatementRecognitionAndMeasurementOfUncertainTaxPositionsDuringCurrentFiscalYearDetail</Role>
      <ShortName>Income Taxes - Reconciliation of the Financial Statement Recognition and Measurement of Uncertain Tax Positions During the Current Fiscal Year (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>995997 - Disclosure - Employee Stock Purchase Plan - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureEmployeeStockPurchasePlanAdditionalInformationDetail</Role>
      <ShortName>Employee Stock Purchase Plan - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Employee Stock Purchase Plan - Summary of Employee Stock Purchase Plan (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureEmployeeStockPurchasePlanSummaryOfEmployeeStockPurchasePlanDetail</Role>
      <ShortName>Employee Stock Purchase Plan - Summary of Employee Stock Purchase Plan (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Treasury Stock - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureTreasuryStockAdditionalInformationDetail</Role>
      <ShortName>Treasury Stock - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Treasury Stock - Summary of Share Repurchases and Cumulatively Since Inception of Authorization (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureTreasuryStockSummaryOfShareRepurchasesAndCumulativelySinceInceptionOfAuthorizationDetail</Role>
      <ShortName>Treasury Stock - Summary of Share Repurchases and Cumulatively Since Inception of Authorization (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996037 - Disclosure - Leases - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesAdditionalInformationDetail</Role>
      <ShortName>Leases - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996047 - Disclosure - Leases - Summary of Components of Lease Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesSummaryOfComponentsOfLeaseExpensesDetails</Role>
      <ShortName>Leases - Summary of Components of Lease Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996057 - Disclosure - Leases - Summary of Lease Related Assets and Liabilities Recorded in Balance Sheet Related to Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesSummaryOfLeaseRelatedAssetsAndLiabilitiesRecordedInBalanceSheetRelatedToOperatingLeasesDetails</Role>
      <ShortName>Leases - Summary of Lease Related Assets and Liabilities Recorded in Balance Sheet Related to Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996067 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesScheduleOfSupplementalCashFlowInformationRelatedToOperatingLeasesDetail</Role>
      <ShortName>Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996077 - Disclosure - Leases - Summary of Maturities of Operating and Financing Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureLeasesSummaryOfMaturitiesOfOperatingAndFinancingLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Summary of Maturities of Operating and Financing Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996097 - Disclosure - Retirement Savings Plan - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureRetirementSavingsPlanAdditionalInformationDetail</Role>
      <ShortName>Retirement Savings Plan - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996127 - Disclosure - Segment Reporting - Schedule of Percentages of Revenues Attributable to Patient Management and Network Solutions Services (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSegmentReportingScheduleOfPercentagesOfRevenuesAttributableToPatientManagementAndNetworkSolutionsServicesDetail</Role>
      <ShortName>Segment Reporting - Schedule of Percentages of Revenues Attributable to Patient Management and Network Solutions Services (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996137 - Disclosure - Segment Reporting - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureSegmentReportingAdditionalInformationDetail</Role>
      <ShortName>Segment Reporting - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996147 - Disclosure - Segment Reporting - Schedule of the Financial Information for the Company's One Reportable and Operating Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/DisclosureSegmentReportingScheduleOfTheFinancialInformationForTheCompanysOneReportableAndOperatingSegmentDetails</Role>
      <ShortName>Segment Reporting - Schedule of the Financial Information for the Company's One Reportable and Operating Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996157 - Disclosure - Other Intangible Assets - Other Intangible Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureOtherIntangibleAssetsOtherIntangibleAssetsDetail</Role>
      <ShortName>Other Intangible Assets - Other Intangible Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996167 - Disclosure - Other Intangible Assets - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureOtherIntangibleAssetsAdditionalInformationDetail</Role>
      <ShortName>Other Intangible Assets - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996177 - Disclosure - Quarterly Results (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureQuarterlyResultsUnauditedSummaryOfUnauditedQuarterlyResultsOfOperationsDetail</Role>
      <ShortName>Quarterly Results (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="crvl-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>996187 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureScheduleIIValuationAndQualifyingAccountsDetail</Role>
      <ShortName>Schedule II - Valuation and Qualifying Accounts (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.corvel.com/20260331/taxonomy/role/Role_DisclosureScheduleIIValuationAndQualifyingAccounts</ParentRole>
      <Position>75</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="crvl-20260331.htm">crvl-20260331.htm</File>
    <File>crvl-20260331.xsd</File>
  </InputFiles>
  <SupplementalFiles>
    <File>img212043134_0.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="3">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="813">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="14">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="40">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="7">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
