<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>304</ContextCount>
  <ElementCount>381</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>81</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsUnaudited</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParentheticalUnaudited</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100030 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100040 - Statement - Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersEquityDeficitUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100050 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnauditedParenthetical</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100060 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100070 - Disclosure - Business, Liquidity and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureBusinessLiquidityAndBasisOfPresentation</Role>
      <ShortName>Business, Liquidity and Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>100080 - Disclosure - NET INCOME (LOSS) PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNETINCOMELOSSPERSHARE</Role>
      <ShortName>NET INCOME (LOSS) PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>100090 - Disclosure - Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestments</Role>
      <ShortName>Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>100100 - Disclosure - Goodwill and Acquired Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssets</Role>
      <ShortName>Goodwill and Acquired Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>100110 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>100120 - Disclosure - Liability Related to the Sale of Future Royalties and Milestones</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestones</Role>
      <ShortName>Liability Related to the Sale of Future Royalties and Milestones</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>100130 - Disclosure - Accrued and Other Current Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilities</Role>
      <ShortName>Accrued and Other Current Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>100140 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>100150 - Disclosure - Revenue from Contracts with Customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomers</Role>
      <ShortName>Revenue from Contracts with Customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>100160 - Disclosure - Share-Based Compensation Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlans</Role>
      <ShortName>Share-Based Compensation Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>100170 - Disclosure - Restricted Cash</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCash</Role>
      <ShortName>Restricted Cash</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>100180 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureEquity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>100190 - Disclosure - Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureContingencies</Role>
      <ShortName>Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>100200 - Disclosure - Recent Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRecentAccountingPronouncements</Role>
      <ShortName>Recent Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>100210 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>100220 - Disclosure - Net Income (Loss) Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNetIncomeLossPerShareTables</Role>
      <ShortName>Net Income (Loss) Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>100230 - Disclosure - Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestmentsTables</Role>
      <ShortName>Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestments</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>100240 - Disclosure - Goodwill and Acquired Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsTables</Role>
      <ShortName>Goodwill and Acquired Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssets</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>100250 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebt</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>100260 - Disclosure - Liability Related to the Sale of Future Royalties and Milestones (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestonesTables</Role>
      <ShortName>Liability Related to the Sale of Future Royalties and Milestones (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestones</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>100270 - Disclosure - Accrued and Other Current Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>Accrued and Other Current Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilities</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>100280 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>100290 - Disclosure - Revenue from Contracts with Customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersTables</Role>
      <ShortName>Revenue from Contracts with Customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomers</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>100300 - Disclosure - Share-Based Compensation Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansTables</Role>
      <ShortName>Share-Based Compensation Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlans</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>100310 - Disclosure - Restricted Cash (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCashTables</Role>
      <ShortName>Restricted Cash (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCash</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>100320 - Disclosure - Business, Liquidity and Basis of Presentation (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureBusinessLiquidityAndBasisOfPresentationNarrativeDetails</Role>
      <ShortName>Business, Liquidity and Basis of Presentation (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureBusinessLiquidityAndBasisOfPresentation</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>100330 - Disclosure - Net Income (Loss) - Schedule of Basic And Diluted Net Income (Loss) Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNetIncomeLossScheduleOfBasicAndDilutedNetIncomeLossPerShareDetails</Role>
      <ShortName>Net Income (Loss) - Schedule of Basic And Diluted Net Income (Loss) Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNetIncomeLossPerShareTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>100340 - Disclosure - Net Income (Loss) Per Share (Schedule of Anti-dilutive Securities Excluded from Computation of Diluted Weighted Average Shares Outstanding) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNetIncomeLossPerShareScheduleOfAntiDilutiveSecuritiesExcludedFromComputationOfDilutedWeightedAverageSharesOutstandingDetails</Role>
      <ShortName>Net Income (Loss) Per Share (Schedule of Anti-dilutive Securities Excluded from Computation of Diluted Weighted Average Shares Outstanding) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureNetIncomeLossPerShareTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>100350 - Disclosure - Investments (Schedule of Cash Equivalentsand Short Term Investments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestmentsScheduleOfCashEquivalentsandShortTermInvestmentsDetails</Role>
      <ShortName>Investments (Schedule of Cash Equivalentsand Short Term Investments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestmentsTables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>100360 - Disclosure - Investments Additional Informations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureInvestmentsAdditionalInformationsDetails</Role>
      <ShortName>Investments Additional Informations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>100370 - Disclosure - Goodwill and Acquired Intangible Assets (Schedule of Changes in Goodwill) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsScheduleOfChangesInGoodwillDetails</Role>
      <ShortName>Goodwill and Acquired Intangible Assets (Schedule of Changes in Goodwill) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>100380 - Disclosure - Goodwill and Acquired Intangible Assets (Acquired Intangible Assets) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsAcquiredIntangibleAssetsDetails</Role>
      <ShortName>Goodwill and Acquired Intangible Assets (Acquired Intangible Assets) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>100390 - Disclosure - Goodwill and Acquired Intangible Assets (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsNarrativeDetails</Role>
      <ShortName>Goodwill and Acquired Intangible Assets (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureGoodwillAndAcquiredIntangibleAssetsTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>100400 - Disclosure - Debt - Schedule of Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebtScheduleOfDebtObligationsDetails</Role>
      <ShortName>Debt - Schedule of Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>100410 - Disclosure - Debt (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebtNarrativeDetails</Role>
      <ShortName>Debt (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureDebtTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>100420 - Disclosure - Liability Related to the Sale of Future Royalties and Milestones (Schedule of Liability Account) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestonesScheduleOfLiabilityAccountDetails</Role>
      <ShortName>Liability Related to the Sale of Future Royalties and Milestones (Schedule of Liability Account) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestonesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>100430 - Disclosure - Liability Related to the Sale of Future Royalties and Milestones (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestonesNarrativeDetails</Role>
      <ShortName>Liability Related to the Sale of Future Royalties and Milestones (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureLiabilityRelatedToSaleOfFutureRoyaltiesAndMilestonesTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>100440 - Disclosure - Accrued and Other Current Liabilities (Schedule of Accrued Liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesScheduleOfAccruedLiabilitiesDetails</Role>
      <ShortName>Accrued and Other Current Liabilities (Schedule of Accrued Liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>100450 - Disclosure - Fair Value Measurements (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsNarrativeDetails</Role>
      <ShortName>Fair Value Measurements (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>100460 - Disclosure - Fair Value Measurements (Schedule of Weighted Average Values of Contingent Purchase Milestones and Credit Spread) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfWeightedAverageValuesOfContingentPurchaseMilestonesAndCreditSpreadDetails</Role>
      <ShortName>Fair Value Measurements (Schedule of Weighted Average Values of Contingent Purchase Milestones and Credit Spread) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>100470 - Disclosure - Fair Value Measurements (Schedule of Liabilities Measured at Fair Value) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfLiabilitiesMeasuredAtFairValueDetails</Role>
      <ShortName>Fair Value Measurements (Schedule of Liabilities Measured at Fair Value) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>100480 - Disclosure - Fair Value Measurements (Schedule of Liabilities Measured at Fair Value Using Significant Unobservable Inputs) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfLiabilitiesMeasuredAtFairValueUsingSignificantUnobservableInputsDetails</Role>
      <ShortName>Fair Value Measurements (Schedule of Liabilities Measured at Fair Value Using Significant Unobservable Inputs) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>100490 - Disclosure - Revenue from Contracts with Customers (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersNarrativeDetails</Role>
      <ShortName>Revenue from Contracts with Customers (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>100500 - Disclosure - Revenue from Contracts with Customers (Narrative) (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersNarrativeDetails1</Role>
      <ShortName>Revenue from Contracts with Customers (Narrative) (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>100510 - Disclosure - Revenue from Contracts with Customers (Summary of Disaggregation of Revenue) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersSummaryOfDisaggregationOfRevenueDetails</Role>
      <ShortName>Revenue from Contracts with Customers (Summary of Disaggregation of Revenue) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>100520 - Disclosure - Revenue from Contracts with Customers (Schedule of Information about Contract Assets and Contract Liabilities from Contracts with Customers) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersScheduleOfInformationAboutContractAssetsAndContractLiabilitiesFromContractsWithCustomersDetails</Role>
      <ShortName>Revenue from Contracts with Customers (Schedule of Information about Contract Assets and Contract Liabilities from Contracts with Customers) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRevenueFromContractsWithCustomersTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>100530 - Disclosure - Share-Based Compensation Plans (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansNarrativeDetails</Role>
      <ShortName>Share-Based Compensation Plans (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>100540 - Disclosure - Share-Based Compensation Plans (Schedule of Stock Option Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansScheduleOfStockOptionActivityDetails</Role>
      <ShortName>Share-Based Compensation Plans (Schedule of Stock Option Activity) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>100550 - Disclosure - Share-Based Compensation Plans (Summary of Non-vested Stock Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansSummaryOfNonVestedStockActivityDetails</Role>
      <ShortName>Share-Based Compensation Plans (Summary of Non-vested Stock Activity) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>100560 - Disclosure - Share-Based Compensation Plans (Schedule of Share-Based Compensation Expense) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansScheduleOfShareBasedCompensationExpenseDetails</Role>
      <ShortName>Share-Based Compensation Plans (Schedule of Share-Based Compensation Expense) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureShareBasedCompensationPlansTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>100570 - Disclosure - Restricted Cash (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCashNarrativeDetails</Role>
      <ShortName>Restricted Cash (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCashTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>100580 - Disclosure - Restricted Cash (Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCashScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails</Role>
      <ShortName>Restricted Cash (Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureRestrictedCashTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>100590 - Disclosure - Equity (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureEquityNarrativeDetails</Role>
      <ShortName>Equity (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureEquity</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="agen-10q_20210930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>100600 - Disclosure - Subsequent Events (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureSubsequentEventsNarrativeDetails</Role>
      <ShortName>Subsequent Events (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.agenusbio.com/20210930/taxonomy/role/DisclosureSubsequentEvents</ParentRole>
      <Position>61</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-Q" original="agen-10q_20210930.htm">agen-10q_20210930.htm</File>
    <File>agen-20210930.xsd</File>
    <File>agen-20210930_cal.xml</File>
    <File>agen-20210930_def.xml</File>
    <File>agen-20210930_lab.xml</File>
    <File>agen-20210930_pre.xml</File>
    <File>agen-ex311_7.htm</File>
    <File>agen-ex312_6.htm</File>
    <File>agen-ex321_9.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/srt/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2021</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2021</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
