3.26.1 html 186 370 1 true 67 0 false 10 false false R1.htm 75000 - Document - Document and Entity Information Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 75010 - Statement - CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetUnaudited CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) Statements 2 false false R3.htm 75050 - Statement - CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetParentheticalUnaudited CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (Unaudited) Statements 3 false false R4.htm 75060 - Statement - CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN NET ASSETS (UNAUDITED) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementOfChangesInNetAssetsUnaudited CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN NET ASSETS (UNAUDITED) Statements 4 false false R5.htm 75070 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Statements 5 false false R6.htm 75090 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementsOfEquityUnaudited CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) Statements 6 false false R7.htm 75100 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited1 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Statements 7 false false R8.htm 75110 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnauditedParenthetical CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) Statements 8 false false R9.htm 75120 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (Unaudited) Sheet http://www.aimco.com/20260331/taxonomy/role/StatementCondensedConsolidatedStatementsOfPartnersCapitalUnaudited CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (Unaudited) Statements 9 false false R10.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 10 false false R11.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 11 false false R12.htm 995455 - Disclosure - Organization Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureOrganization Organization Notes 12 false false R13.htm 995465 - Disclosure - Plan of Sale and Liquidation Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosurePlanOfSaleAndLiquidation Plan of Sale and Liquidation Notes 13 false false R14.htm 995475 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies Basis of Presentation and Summary of Significant Accounting Policies Notes 14 false false R15.htm 995485 - Disclosure - Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLiabilitiesForEstimatedCostsInExcessOfEstimatedReceiptsDuringLiquidation Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation Notes 15 false false R16.htm 995495 - Disclosure - Commitments and Contingencies Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 16 false false R17.htm 995505 - Disclosure - Net Assets in Liquidation Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureNetAssetsInLiquidation Net Assets in Liquidation Notes 17 false false R18.htm 995515 - Disclosure - Common Stock, OP Units, and Equivalents Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureCommonStockOpUnitsAndEquivalents Common Stock, OP Units, and Equivalents Notes 18 false false R19.htm 995525 - Disclosure - Earnings Per Share and Per Unit Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnit1 Earnings Per Share and Per Unit Notes 19 false false R20.htm 995555 - Disclosure - Lease Arrangements Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangements3 Lease Arrangements Notes 20 false false R21.htm 995565 - Disclosure - Assets Held for Sale and Discontinued Operations Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperations Assets Held for Sale and Discontinued Operations Notes 21 false false R22.htm 995575 - Disclosure - Business Segments Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBusinessSegments Business Segments Notes 22 false false R23.htm 995585 - Disclosure - Subsequent Events Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureSubsequentEvents Subsequent Events Notes 23 false false R24.htm 995595 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies Basis of Presentation and Summary of Significant Accounting Policies (Policies) Policies http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies 24 false false R25.htm 995605 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables Basis of Presentation and Summary of Significant Accounting Policies (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies 25 false false R26.htm 995615 - Disclosure - Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLiabilitiesForEstimatedCostsInExcessOfEstimatedReceiptsDuringLiquidationTables Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/DisclosureLiabilitiesForEstimatedCostsInExcessOfEstimatedReceiptsDuringLiquidation 26 false false R27.htm 995625 - Disclosure - Net Assets in Liquidation (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureNetAssetsInLiquidationTables Net Assets in Liquidation (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/DisclosureNetAssetsInLiquidation 27 false false R28.htm 995635 - Disclosure - Earnings Per Share and Per Unit (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnitTables Earnings Per Share and Per Unit (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnit1 28 false false R29.htm 995665 - Disclosure - Lease Arrangements (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsTables Lease Arrangements (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangements3 29 false false R30.htm 995675 - Disclosure - Assets Held for Sale and Discontinued Operations (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsTables Assets Held for Sale and Discontinued Operations (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperations 30 false false R31.htm 995685 - Disclosure - Business Segments (Tables) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBusinessSegmentsTables Business Segments (Tables) Tables http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBusinessSegments 31 false false R32.htm 995695 - Disclosure - Organization (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureOrganizationDetailsTextual Organization (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureOrganization 32 false false R33.htm 995705 - Disclosure - Plan of Sale and Liquidation - Additional Information (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosurePlanOfSaleAndLiquidationAdditionalInformationDetails Plan of Sale and Liquidation - Additional Information (Details) Details 33 false false R34.htm 995715 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsTextual Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables 34 false false R35.htm 995725 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfReconciliationOfRedeemableNoncontrollingInterestsInRealEstat Basis of Presentation and Summary of Significant Accounting Policies - Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Details) Details 35 false false R36.htm 995735 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Parenthetical) (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfReconciliationOfRedeemableNoncontrollingInterestsInRealEstat1 Basis of Presentation and Summary of Significant Accounting Policies - Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Parenthetical) (Details) Details 36 false false R37.htm 995745 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash Flow Information (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashFlowInformationDetails Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash Flow Information (Details) Details 37 false false R38.htm 995755 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Details) Notes http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfNotesReceivableDetails Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Details) Details 38 false false R39.htm 995765 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Parenthetical) (Details) Notes http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfNotesReceivableParentheticalDetails Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Parenthetical) (Details) Details 39 false false R40.htm 995785 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Other Assets, Net (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfOtherAssetsNetDetails Basis of Presentation and Summary of Significant Accounting Policies - Summary of Other Assets, Net (Details) Details 40 false false R41.htm 995795 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Other Assets, Net (Parenthetical) (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesSummaryOfOtherAssetsNetParentheticalDetails Basis of Presentation and Summary of Significant Accounting Policies - Summary of Other Assets, Net (Parenthetical) (Details) Details 41 false false R42.htm 995805 - Disclosure - Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation - Schedule of Following Revenues and Expenses Expected to be Incurred during Liquidation (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLiabilitiesForEstimatedCostsInExcessOfEstimatedReceiptsDuringLiquidationScheduleOfFollowingRevenuesAndExpensesExpectedToBeIncur1 Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation - Schedule of Following Revenues and Expenses Expected to be Incurred during Liquidation (Details) Details 42 false false R43.htm 995815 - Disclosure - Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation - Schedule of Change in Liabilities for Estimated Costs in Excess of Estimated Receipts during Liquidation (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLiabilitiesForEstimatedCostsInExcessOfEstimatedReceiptsDuringLiquidationScheduleOfChangeInLiabilitiesForEstimatedCostsInExcess Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation - Schedule of Change in Liabilities for Estimated Costs in Excess of Estimated Receipts during Liquidation (Details) Details 43 false false R44.htm 995825 - Disclosure - Net Assets in Liquidation - Reconciliation of Equity Under Going Concern Basis of Accounting to Net Assets in Liquidation Under Liquidation Basis of Accounting (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureNetAssetsInLiquidationReconciliationOfEquityUnderGoingConcernBasisOfAccountingToNetAssetsInLiquidationUnderLiquidationBasisOf Net Assets in Liquidation - Reconciliation of Equity Under Going Concern Basis of Accounting to Net Assets in Liquidation Under Liquidation Basis of Accounting (Details) Details 44 false false R45.htm 995835 - Disclosure - Net Assets in Liquidation - Additional Information (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureNetAssetsInLiquidationAdditionalInformationDetails Net Assets in Liquidation - Additional Information (Details) Details 45 false false R46.htm 995845 - Disclosure - Commitments and Contingencies (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesDetailsTextual Commitments and Contingencies (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureCommitmentsAndContingencies 46 false false R47.htm 995855 - Disclosure - Common Stock, OP Units, and Equivalents (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureCommonStockOpUnitsAndEquivalentsDetails Common Stock, OP Units, and Equivalents (Details) Details http://www.aimco.com/20260331/taxonomy/role/DisclosureCommonStockOpUnitsAndEquivalents 47 false false R48.htm 995865 - Disclosure - Earnings Per Share and Per Unit - Reconciliations of Numerator and Denominator in Calculations of Basic and Diluted Earnings per Share and per Unit (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnitReconciliationsOfNumeratorAndDenominatorInCalculationsOfBasicAndDilutedEarningsPerShareAndPerUnitD Earnings Per Share and Per Unit - Reconciliations of Numerator and Denominator in Calculations of Basic and Diluted Earnings per Share and per Unit (Details) Details 48 false false R49.htm 995875 - Disclosure - Earnings Per Share and Per Unit (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnitDetailsTextual Earnings Per Share and Per Unit (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/DisclosureEarningsPerShareAndPerUnitTables 49 false false R50.htm 995915 - Disclosure - Lease Arrangements (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsDetailsTextual Lease Arrangements (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsTables 50 false false R51.htm 995925 - Disclosure - Lease Arrangements - Lease Income for Residential and Commercial Property Leases (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsLeaseIncomeForResidentialAndCommercialPropertyLeasesDetails Lease Arrangements - Lease Income for Residential and Commercial Property Leases (Details) Details 51 false false R52.htm 995945 - Disclosure - Lease Arrangements - Schedule of Lease Costs, Net of Capitalized Lease Costs (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsScheduleOfLeaseCostsNetOfCapitalizedLeaseCostsDetails Lease Arrangements - Schedule of Lease Costs, Net of Capitalized Lease Costs (Details) Details 52 false false R53.htm 995965 - Disclosure - Lease Arrangements - Minimum Annual Lease Payments Under Operating, Financing Leases (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureLeaseArrangementsMinimumAnnualLeasePaymentsUnderOperatingFinancingLeasesDetails Lease Arrangements - Minimum Annual Lease Payments Under Operating, Financing Leases (Details) Details 53 false false R54.htm 995985 - Disclosure - Assets Held for Sale and Discontinued Operations - Additional Information (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsAdditionalInformationDetails Assets Held for Sale and Discontinued Operations - Additional Information (Details) Details 54 false false R55.htm 995995 - Disclosure - Assets Held for Sale and Discontinued Operations - Summary of Major Components of Assets and Liabilities Related to Discontinued Operations (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsSummaryOfMajorComponentsOfAssetsAndLiabilitiesRelatedToDiscontinuedOperationsDetails Assets Held for Sale and Discontinued Operations - Summary of Major Components of Assets and Liabilities Related to Discontinued Operations (Details) Details 55 false false R56.htm 996005 - Disclosure - Assets Held for Sale and Discontinued Operations - Schedule of Major Components of Assets and Liabilities Related to Real Estate Properties Held for Sale (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsScheduleOfMajorComponentsOfAssetsAndLiabilitiesRelatedToRealEstatePropertiesHeldFor3 Assets Held for Sale and Discontinued Operations - Schedule of Major Components of Assets and Liabilities Related to Real Estate Properties Held for Sale (Details) Details 56 false false R57.htm 996015 - Disclosure - Assets Held for Sale and Discontinued Operations - Summary of Income from Discontinued Operations (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsSummaryOfIncomeFromDiscontinuedOperationsDetails Assets Held for Sale and Discontinued Operations - Summary of Income from Discontinued Operations (Details) Details 57 false false R58.htm 996025 - Disclosure - Assets Held for Sale and Discontinued Operations - Summary of Cash Flow Information Related to Discontinued Operation (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureAssetsHeldForSaleAndDiscontinuedOperationsSummaryOfCashFlowInformationRelatedToDiscontinuedOperationDetails Assets Held for Sale and Discontinued Operations - Summary of Cash Flow Information Related to Discontinued Operation (Details) Details 58 false false R59.htm 996035 - Disclosure - Business Segments (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBusinessSegmentsDetailsTextual Business Segments (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/Role_DisclosureBusinessSegmentsTables 59 false false R60.htm 996045 - Disclosure - Business Segments - Schedule of Information for Reportable Segments (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBusinessSegmentsScheduleOfInformationForReportableSegmentsDetails Business Segments - Schedule of Information for Reportable Segments (Details) Details 60 false false R61.htm 996055 - Disclosure - Business Segments - Schedule of Net Real Estate and Non-Recourse Property Debt, Net and Construction Loans, Net, by Segment (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBusinessSegmentsScheduleOfNetRealEstateAndNonrecoursePropertyDebtNetAndConstructionLoansNetBySegmentDetails Business Segments - Schedule of Net Real Estate and Non-Recourse Property Debt, Net and Construction Loans, Net, by Segment (Details) Details 61 false false R62.htm 996065 - Disclosure - Business Segments - Summary of Segment Capital Additions (Details) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureBusinessSegmentsSummaryOfSegmentCapitalAdditionsDetails Business Segments - Summary of Segment Capital Additions (Details) Details 62 false false R63.htm 996075 - Disclosure - Subsequent Events (Details Textual) Sheet http://www.aimco.com/20260331/taxonomy/role/DisclosureSubsequentEventsDetailsTextual Subsequent Events (Details Textual) Details http://www.aimco.com/20260331/taxonomy/role/DisclosureSubsequentEvents 63 false false All Reports Book All Reports aiv-20260331.htm aiv-20260331.xsd http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 false false