| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 184957 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 297084 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 24842 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 64916 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE AHA PROMOTES HISTORY AND HISTORICAL WORK VIA PUBLICATIONS, CONFERENCES, AND OTHER ACTIVITIES. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 325 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 325 |
| IRS990/AllOtherContributionsAmt | 0 | 208901 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DANA SCHAFFER |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2025442422 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 400 A STREET SE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 20003 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 542696 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 448636 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 56369 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 115474 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 255169 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 427012 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 10697 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 6575 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 468447 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 485719 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 235958 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 102555 |
| IRS990/CYInvestmentIncomeAmt | 0 | 561917 |
| IRS990/CYOtherExpensesAmt | 0 | 2099867 |
| IRS990/CYOtherRevenueAmt | 0 | 677246 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2548685 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 22685 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1798699 |
| IRS990/CYTotalExpensesAmt | 0 | 4001121 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 341627 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 4023806 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 1648212 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 1645841 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 31319 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 31319 |
| IRS990/Desc | 0 | THE ASSOCIATION'S ANNUAL MEETING PROVIDES A UNIQUE FORUM FOR MEMBERS AND THE GENERAL PUBLIC TO EXCHANGE INFORMATION, RESEARCH, AND IDEAS. ATTENDEES OF THE ANNUAL MEETING HAVE THE OPPORTUNITY TO EXPLORE HISTORICAL CONNECTIONS WITH SCHOLARS OUTSIDE THEIR FIELDS, IDENTIFY NEW RESEARCH AND SCHOLARSHIPS, MEET WITH EDITORS, DISCOVER RESOURCES FOR TEACHING AND LEARNING, JOIN CRITICAL DISCUSSION WITH OTHER HISTORIANS, AND GAIN NEW SKILLS FOR RESEARCH, TEACHING, AND PUBLIC ENGAGEMENT. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 22 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 969148 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FederatedCampaignsAmt | 0 | 2057 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 22624 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 22624 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 3878 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 3878 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 20520 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 457945 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 478465 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 22592 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 22592 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 35.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 35.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 38640 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 21621 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MARY BETH NORTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN MCNEILL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | TYLER STOVALL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | KEVIN BOYLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | SOPHIA ROSENFELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ELIZABETH LEHFELDT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | DEBJANI BHATTACHARYYA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | MARY ELLIOTT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | SUZANNE MARCHAND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MELISSA BOKOVOY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | BECKY NICOLAIDES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JAMES SWEET |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | JEFFREY BOWMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | CARLOS ALBERTO CONTRERAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | CRAIG PERRIER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | SARAH MELLORS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | WILLIAM WECHSLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | JAMES GROSSMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | DANA SCHAFFER |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 228784 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 117521 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | PRESIDENT-ELECT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PAST PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | VICE PRESIDENT - PROFESSION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE PRESIDENT - RESEARCH |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | VICE PRESIDENT - TEACHING |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | COUNCIL MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DEPUTY DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1884 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 373668 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GovernmentGrantsAmt | 0 | 25000 |
| IRS990/GrantAmt | 0 | 2475 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 102555 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 102555 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1144458 |
| IRS990/GrossReceiptsAmt | 0 | 4794596 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 16 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 102669 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 24801 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 127470 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 16202 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 3900 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 20102 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 13857 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 11998 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 188249 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 188249 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 7759920 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 7508342 |
| IRS990/IRPDocumentCnt | 0 | 60 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 973337 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 194418 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 163099 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1136436 |
| IRS990/LegalDomicileStateCd | 0 | DC |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 770790 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE AHA IS THE LARGEST PROFESSIONAL ORGANIZATION SERVING HISTORIANS IN ALL FIELDS AND ALL PROFESSIONS. THE AHA IS A TRUSTED VOICE FOR HISTORY EDUCATION, THE PROFESSIONAL WORK OF HISTORIANS, AND THE CRITICAL ROLE OF HISTORICAL THINKING IN PUBLIC LIFE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 7782686 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 7687498 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 373668 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 373668 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | -4377 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -117873 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 72739 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 72739 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 35 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 144652 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 264948 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 409635 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 11123 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 11445 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 20737 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 42480 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 93870 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 157087 |
| IRS990/OtherExpensesGrp/Desc | 0 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/Desc | 1 | TAXES AND LICENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | OVERHEAD ALLOCATION |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 64983 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 7007 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 1011 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | -715274 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 12897 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 774 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 650291 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 19904 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 1785 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 0 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 136430 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 279478 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 617578 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1033486 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PaymentsToAffiliatesGrp/ProgramServicesAmt | 0 | 123635 |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 123635 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 13288 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 27220 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 60151 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 100659 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 10621 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 21757 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 48077 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 80455 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 1719854 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 1732321 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 807937 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 53225 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 114473 |
| IRS990/PrincipalOfficerNm | 0 | DANA SCHAFFER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 561920 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 541800 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | MEMBERSHIP DUES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | ANNUAL CONFERENCE |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | PUBLICATIONS |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | MISCELLANEOUS REVENUE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1270397 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 946934 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 268430 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 27564 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1270397 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 946934 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 303790 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 27564 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 35360 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE ASSOCIATION PROVIDES ADVOCACY AND SUPPORT FOR HISTORIANS IN ALL FIELDS AND PROFESSIONS BY PROMOTING HISTORY EDUCATION, THE PROFESSIONAL WORK OF HISTORIANS, AND THE CRITICAL ROLE OF HISTORICAL THINKING IN PUBLIC LIFE. MEMBERS BENEFIT FORM THE AHA'S LEADERSHIP ON ISSUES SUCH AS ACADEMIC FREEDOM, ACCESS TO ARCHIVES, THE CENTRALITY OF HISTORY TO PUBLIC CULTURE, IMPROVEMENTS IN CURRICULA, AND OTHER VITAL ISSUES. THE ASSOCIATION'S PROGRAMS AND INITIATIVES ADVANCE TEACHING AND LEARNING OF HISTORY, ENHANCE THE CAREER DEVELOPMENT OF HISTORIANS, AND ENCOURAGE SCHOLARLY DISCUSSION. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 1002616 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 1297961 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | THE ASSOCIATION'S DIVERSE PUBLISHING PROGRAM SERVES THE FOLLOWING EFFORTS IN THE ADVANCEMENT OF HISTORY; TO STRENGTHEN THE STUDY AND TEACHING OF HISTORY; TO ADDRESS THE COMMON CONCERNS OF THE HISTORICAL COMMUNITY; TO REPRESENT THE DISCIPLINE IN POLICY MATTERS; TO PROVIDE TIMELY AND SYSTEMATIC COVERAGE OF RESEARCH DEVELOPMENTS; AND TO DISSEMINATE NEW SCHOLARSHIP AND INFORMATION FOR ITS APPLICATION IN A VARIETY OF WAYS. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 618424 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 268430 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | EACH YEAR, THE AMERICAN HISTORICAL ASSOCIATION AWARDS SEVERAL RESEARCH GRANTS WITH THE AIM OF ADVANCING THE STUDY AND EXPLORATION OF HISTORY IN A DIVERSE NUMBER OF SUBJECT AREAS. ALL GRANTS ARE AWARDED IN JUNE AND MAY BE USED ANYTIME IN THE SUBSEQUENT 15 MONTHS FOR EXPENSES RELATED TO FURTHERING RESEARCH IN PROGRESS. GRANTS MAY BE USED FOR TRAVEL TO A LIBRARY OR ARCHIVE; MICROFILMING, PHOTOGRAPHY, OR PHOTOCOPYING; BORROWING OR ACCESS FEES; AND SIMILAR RESEARCH EXPENSES--A LIST OF PURPOSES THAT IS MEANT TO BE MERELY ILLUSTRATIVE, NOT EXHAUSTIVE (OTHER EXPENSES, SUCH AS CHILD CARE, CAN BE INCLUDED). |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 1 | THE ASSOCIATION RECOGNIZES A WIDE VARIETY OF DISTINGUISHED HISTORICAL WORK, WHICH CAN TAKE THE FORM OF AN EXCEPTIONAL BOOK IN THE FIELD, DISTINGUISHED TEACHING AND MENTORING IN THE CLASSROOM, FILM, OR DIGITAL PROJECTS AND RESOURCES. SINCE 1896 THE ASSOCIATION HAS CONFERRED OVER A THOUSAND AWARDS. THE NAMES, PUBLICATIONS, AND PROJECTS OF THOSE WHO RECEIVED THESE AWARDS ARE A CATALOGUE OF THE BEST WORK PRODUCED BY MEMBERS OF THE HISTORICAL DISCIPLINE. |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 687549 |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 1 | 139441 |
| IRS990/ProgSrvcAccomActyOtherGrp/GrantAmt | 0 | 29013 |
| IRS990/ProgSrvcAccomActyOtherGrp/GrantAmt | 1 | 71067 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 1786391 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 118745 |
| IRS990/PYInvestmentIncomeAmt | 0 | 377127 |
| IRS990/PYOtherExpensesAmt | 0 | 1848948 |
| IRS990/PYOtherRevenueAmt | 0 | 677494 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2335080 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1418586 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1789813 |
| IRS990/PYTotalExpensesAmt | 0 | 3757506 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 5176092 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 22685 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |