| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 4251356 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 4671255 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1355011 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 573916 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | AHC'S MISSION IS TO BUILD, PRESERVE AND PROVIDE HIGH QUALITY AFFORDABLE HOUSING TO LOW AND MODERATE INCOME FAMILIES AND INDIVIDUALS |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 8891 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 33516 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 196066 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 238473 |
| IRS990/AllOtherContributionsAmt | 0 | 3907531 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 47338 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 131492 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 453420 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 632250 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | STEVE YEATMAN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7034860626 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 2230 NORTH FAIRFAX DRIVE SUITE 100 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ARLINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | VA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 22201 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 11968485 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 11109498 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 7 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 71813 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 665393 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 1634203 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 2371409 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 643668 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 361595 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 321039 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 170135 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 128415 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1054 31ST STREET NW 315 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 10490 LITTLE PATUXENT PARKWAY SUIT |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 3437 9TH STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 800 RED BROOK BLVD SUITE 300 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 12505 PARK POTOMAC AVENUE 6TH FLOO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | COLUMBIA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | BALTIMORE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | OWINGS MILLS |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | POTOMAC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 20007 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 21044 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 21225 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 21117 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 20854 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CUNNINGHAM & QUILL ARCHITECTS |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | HARKINS BUILDERS INC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | ACCESS DEMOLITION CONTRACTING INC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | HERTZBACH & COMPANY PA |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | SHULMAN ROGERS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | DESIGN SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | CONSTRUCTION SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | ACCOUNTING SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | ATTORNEY |
| IRS990/CreditCounselingInd | 0 | 1 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 4081675 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | -98082 |
| IRS990/CYOtherExpensesAmt | 0 | 15392337 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 23351706 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 2335174 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 9607788 |
| IRS990/CYTotalExpensesAmt | 0 | 25000125 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 315420 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 27335299 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 10128292 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 8468147 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 6822 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 56162 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 3296035 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 3359019 |
| IRS990/Desc | 0 | MULTIFAMILY HOUSING DEVELOPMENT - AHC PROVIDES AFFORDABLE HOUSING PARTICULARLY IN ARLINGTON, VIRGINIA, BUT ALSO IN OTHER COMMUNITIES IN THE DC METRO AREA, SUCH AS PRINCE GEORGE'S, MONTGOMERY, AND BALTIMORE COUNTIES IN MARYLAND; ALEXANDRIA AND FAIRFAX COUNTIES IN VIRGINIA; AND WASHINGTON, DC. FOUNDED IN DECEMBER OF 1975, AHC TODAY OWNS 53 AFFORDABLE HOUSING COMPLEXES PROVIDING HOUSING FOR MORE THAN 18,000 FAMILIES AND INDIVIDUALS. KNOWN IN THE EARLIER YEARS AS THE ARLINGTON HOUSING CORPORATION, AHC HAS GROWN FROM A GRASSROOTS ENTITY THAT PROVIDED A HOME IMPROVEMENT PROGRAM FOR LOW- AND MODERATE-INCOME HOMEOWNERS IN ARLINGTON TO A FULL-SERVICE ORGANIZATION OFFERING COMPREHENSIVE AFFORDABLE HOUSING, HIGH QUALITY PROPERTY MANAGEMENT SERVICES (SINCE 2001) AND AWARD-WINNING ONSITE RESIDENT SERVICES (SINCE 1993) THAT IMPROVE THE QUALITY OF OUR RESIDENTS' LIVES.AHC PRIMARILY SERVES FAMILIES WHO EARN BETWEEN 30% AND 80% OF THE AREA MEDIAN INCOME. AREA MEDIAN INCOME, OR AMI, IS THE MIDDLE INCOME IN A GIVEN AREA AND IS THE MEASUREMENT THAT QUALIFIES FAMILIES AND INDIVIDUALS FOR AFFORDABLE HOUSING. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 1 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 85 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountLiabilityGrp/BOYAmt | 0 | 363556 |
| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 440386 |
| IRS990/ExpenseAmt | 0 | 16218765 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 7783 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 66781 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 113841 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 188405 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 5690 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 48817 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 234131 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 288638 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 11406 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 51318 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 229227 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 291951 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 14 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 15 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 16 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 17 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 18 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 19 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 20 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 21 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 22 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 23 | 0.00 |
| 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 | 30.00 |
| 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 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| 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/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 2 | 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 | 92386 |
| 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 | 29609 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 86774 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 67617 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 8888 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 86777 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 56476 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 25088 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 16171 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 19007 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 20510 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 22752 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 9242 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JUSTIN C OLIVER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN V SNYDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DAVID BARSKY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CC JENKINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | WALTER D WEBDALE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JASON C DALLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | WANDA PIERCE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | CATHERINE SADAAT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | RACHEL SCHROEDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ROBERT BUSHKOFF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | SCOTT RITTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | THOMAS KLANDERMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | STEVE YEATMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | STEPHEN SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | JOHN WELSH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | MICHAEL WARNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | CARLTON MILLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | JAMES LOWE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | ALAN I GOLDSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | STANIA ROMAIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | REGINA JACKSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | BIBI Z KIRBY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | JENNIFER ENDO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | TERESA L WASHINGTON |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 409828 |
| 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 | 220392 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 345476 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 212721 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 225820 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 182247 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 151365 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 169944 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 138835 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 142679 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 135551 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 145391 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 136187 |
| 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/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | PARTIAL YEAR DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | PARTIAL YEAR DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | ASSISTANT TREASURER / CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | EXECUTIVE VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | VP, MULTIFAMILY DIVISION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | SENIOR VP, PROPERTY MANAGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIR. SINGLE FAMILY DEVELOP |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIR. PORTFOLIO MANAGEMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DIR. MULTIFAMILY DIVISION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | DIR. HUMAN RESOURCES |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | SENIOR CONTROLLER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | CONTROLLER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | DIRECTOR, RESIDENT SERVIC |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | SENIOR COMMUNITY ASSOCIATION MANAGER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1975 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolAndSepBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | -560614 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 174144 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 6665000 |
| IRS990/GrossReceiptsAmt | 0 | 34560913 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 9 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 22 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 7827 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 56744 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 243319 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 307890 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 7142 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 57733 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 81391 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 146266 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 2779696 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 2727840 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 362270 |
| IRS990/InterestGrp/TotalAmt | 0 | 362270 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 462532 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 462532 |
| IRS990/InvestmentInJointVentureInd | 0 | 1 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 3679998 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 1456327 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 971267 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1157346 |
| IRS990/IRPDocumentCnt | 0 | 98 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 14716157 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 107780252 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 104620017 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 119336174 |
| IRS990/LegalDomicileStateCd | 0 | VA |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 7225614 |
| 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 | AHC'S MISSION IS TO BUILD, PRESERVE AND PROVIDE HIGH QUALITY AFFORDABLE HOUSING TO LOW AND MODERATE INCOME FAMILIES AND INDIVIDUALS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 115909622 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 114700987 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 102509840 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 104086979 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | -560614 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -560614 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 27240 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -445713 |