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Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Details) link:presentationLink link:calculationLink link:definitionLink 995735 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 995745 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 995755 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 995765 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Notes Receivable (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 995775 - 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Schedule of Change in Liabilities for Estimated Costs in Excess of Estimated Receipts during Liquidation (Details) link:presentationLink link:calculationLink link:definitionLink 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) link:presentationLink link:calculationLink link:definitionLink 995835 - Disclosure - Net Assets in Liquidation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 995845 - Disclosure - Commitments and Contingencies (Details Textual) link:presentationLink link:calculationLink link:definitionLink 995855 - Disclosure - Common Stock, OP Units, and Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 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) link:presentationLink link:calculationLink link:definitionLink 995875 - 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Disclosure - Lease Arrangements - Schedule of Minimum Lease Payments from our Office Space Sublease and Commercial Space Leases, Excluding Extension Options (Details) link:presentationLink link:calculationLink link:definitionLink 995945 - Disclosure - Lease Arrangements - Schedule of Lease Costs, Net of Capitalized Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 995955 - Disclosure - Lease Arrangements - Schedule of Weighted Average Remaining Terms and Discount Rates (Details) link:presentationLink link:calculationLink link:definitionLink 995965 - Disclosure - Lease Arrangements - Minimum Annual Lease Payments Under Operating, Financing Leases (Details) link:presentationLink link:calculationLink link:definitionLink 995975 - Disclosure - Lease Arrangements - Minimum Annual Lease Payments Under Operating, Financing Leases (Details) 2 link:presentationLink link:calculationLink link:definitionLink 995985 - Disclosure - Assets Held for Sale and Discontinued Operations - 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Business Segments (Details Textual) link:presentationLink link:calculationLink link:definitionLink 996045 - Disclosure - Business Segments - Schedule of Information for Reportable Segments (Details) link:presentationLink link:calculationLink link:definitionLink 996055 - Disclosure - Business Segments - Schedule of Net Real Estate and Non-Recourse Property Debt, Net and Construction Loans, Net, by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 996065 - Disclosure - Business Segments - Summary of Segment Capital Additions (Details) link:presentationLink link:calculationLink link:definitionLink 996075 - Disclosure - Subsequent Events (Details Textual) link:presentationLink link:calculationLink link:definitionLink Long-Term Investments and Receivables, Net Long-Term Investments and Receivables, Net, Total Notes receivable and other investments Segments Segments [Domain] San Diego Communities [Member] San Diego Communities [Member] San Diego Communities Member Redeemable Noncontrolling Interest, Equity, Other, Carrying Amount Redeemable noncontrolling interests in consolidated real estate partnerships Balance at Beginning of Period Balance at September 30, Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating lease, lease income, statement of income or comprehensive income Total lease liabilities Lease liabilities - finance leases Finance Lease, Liability, Total Finance Lease, Liability Changes in net assets in liquidation Increase (Decrease) In Net Assets In Liquidation Increase (decrease) in net assets in liquidation. Entity Address, State or Province Entity Incorporation, State or Country Code Finance Lease, Liability, to be Paid, Year Four 2029 Revision of Prior Period [Axis] Discontinued operations, non recourse property debt Discontinued operations, non-recourse property debt. Discontinued operations, non-recourse property debt Non-recourse property debt, net Note A Renewal Options Two [Member] Note A Renewal Options two. Other, net (in shares) Stockholders' Equity, Other Shares Equity [Abstract] Entity Current Reporting Status Entity Current Reporting Status Other [Member] Other [Member] Other Member OPERATING EXPENSES Operating Expenses [Abstract] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Common Stock, shares authorized (in shares) Common Stock, Shares Authorized Partners' Capital Account, Unit-Based Payment Arrangement, Amount Share-based compensation expense Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Total Accounts Receivable, after Allowance for Credit Loss Accounts receivable, net of allowances of $800 and $352 as of September 30, 2025 and December 31, 2024, respectively Earnings Per Share, Basic [Abstract] Earnings (loss) per common share - basic Earnings (loss) per share - basic Investment, Policy [Policy Text Block] Other Investments Product and Service [Axis] Fair Value by Liability Class Fair Value by Liability Class [Domain] Document Fiscal Period Focus Document Fiscal Period Focus Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Schedule Of Revenues And Expenses Expected To Be Incurred During Liquidation [Table Text Block] Schedule of revenues and expenses expected to be incurred during liquidation. Schedule of Revenues and Expenses Expected to be Incurred during Liquidation Entity Shell Company Entity Shell Company Legal Entity of Counterparty, Type Legal Entity of Counterparty, Type [Axis] Cash and Cash Equivalents, at Carrying Value, Ending Balance Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Cash and Cash Equivalent Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Distributions to noncontrolling interests Distributions to noncontrolling interests in consolidated real estate partnerships Distribution to noncontrolling interests in consolidated real estate partnerships Multifamily properties under construction. Multifamily Properties Under Construction [Member] Receivable Type [Axis] Balances (in shares) Common Stock, Shares, Issued, Total Common Stock, shares issued (in shares) Common Stock, Shares, Issued Balances (in shares) Lessee, operating lease, description Lessee, Operating Lease, Description Statement [Table] Statement [Table] Summary of Carrying Value and Fair Value of Our Non-recourse Property Debt and Non-recourse Construction Loans Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table Text Block] Other assets net policy text block. Other Assets Net Policy Text Block Other Assets, net Financial Support to Nonconsolidated Legal Entity [Axis] Limited Partners' Capital Account, Total Limited Partners' Capital Account Limited Partners (4,924,401 OP Units issued and outstanding at December 31, 2025) Disposal group, including discontinued operations, accumulated depreciation. Disposal Group, Including Discontinued Operations, Accumulated Depreciation Accumulated depreciation Statement [Line Items] Statement [Line Items] Revenue From Contract with Customers Revenue from Contract with Customer [Policy Text Block] Entity Filer Category Entity Filer Category Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Net Assets In Liquidation Attributable To Parent Net assets in liquidation attributable to parent. Net assets in liquidation attributable to Aimco Net assets in liquidation, end of period Net assets in liquidation, beginning of period Liabilities and Equity Total liabilities and equity Statement of Partners' Capital [Abstract] Long-Lived Tangible Asset Long-Lived Tangible Asset [Axis] Finance Lease, Liability, to be Paid, Year Three 2028 Investment Building and Building Improvements, Total Buildings and improvements Investment Building and Building Improvements Revenue Recognized (Expense Incurred) [Member] Revenue recognized (expense incurred). Revenue Recognized / Expense Incurred [Member] Redeemable Noncontrolling Interest Equity Purchases Redeemable noncontrolling interest equity purchases. Purchases Redeemable noncontrolling interest purchase Subsequent Event [Line Items] Payments to Purchase of Redeemable Noncontrolling Interests in Consolidated Real Estate Partnerships Payments to purchase of redeemable noncontrolling interests in consolidated real estate partnerships. Purchase of redeemable noncontrolling interests in consolidated real estate partnerships Corporate Office Sublease [Member] Corporate office sublease. Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Remainder of 2025 Interest income Investment Income, Interest Basis Of Presentation And Summary Of Significant Accounting Policies [Table] Basis Of Presentation And Summary Of Significant Accounting Policies [Table] Disclosure of basis of presentation and summary of significant accounting policies. Geographical [Domain] Cash Equivalents Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Brickell Assemblage [Member] Brickell assemblage. Proceeds from Sale, Property, Held-for-Sale Proceeds from sale of property Exit Fees Percentage Exit fees percentage. Exit fees percentage Preferred Equity Interest Accruing Preferred Return Preferred equity interest accruing preferred return. Preferred equity interest accruing preferred return Number of apartment homes Number Of Apartment Homes Number of apartment homes. Royal Crest Estates (Nashua) [Member] Royal Crest Estates (Nashua). Capital additions Segment, Expenditure, Addition to Long-Lived Assets Debt Instrument, Interest Rate During Period Annual Interest Rate Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Abstract] Residential Apartment Communities in Redevelopment [Member] Residential Apartment Communities In Redevelopment [Member] Residential Apartment Communities in Redevelopment. Distribution Made to Limited Partner, Date of Record Record date Construction related contracts, amount Construction Loan Contracts Amount Construction loan contracts amount. Reconciliations of Numerator and Denominator in Calculations of Basic and Diluted Earnings per Share and per Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Investment, Name [Axis] Dividends Payable Dividends payable Earnings (loss) per share - basic Net income (loss) attributable to Aimco per common share - basic (Note 4) Net income (loss) attributable to Aimco per common share - basic Net income (loss) attributable to Aimco per common share - basic (Note 8) TRS Entities [Member] TRS Entities. Unconsolidated Investment in IQHQ and Mezzanine Investment [Member] Unconsolidated Investment In IQHQ And Mezzanine Investment [Member] Unconsolidated investment in IQHQ and mezzanine investment. Repayment of secured property debt Principal repayments on non-recourse property debt Repayments of Secured Debt Real Estate Property Sale Gross Price Real estate property sale gross price. Gross price Total lease income Operating Lease, Lease Income Multifamily [Member] Multifamily Property [Member] Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Dividends Payable, Date of Record Dividends payable, date of record Gross amount of secured debt. Secured Debt Gross Total non-recourse property debt Non-recourse property debt Redemption of op units held by third parties. Redemption of Op Units Held by Third Parties Redemption of OP Units held by third parties Summary Of Cash Flow Information Related To Discontinued Operation [Table Text Block] Summarizes cash flow information related to the discontinued operation. Summary of Cash Flow Information Related to Discontinued Operation Number of Authorized Shares Not Disclosed Number of authorized shares not disclosed. Real Estate Partnership Real Estate Partnership [Member] Real Estate Partnership Member Segment Reconciling Items [Member] Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Net real estate Disposal Group, Including Discontinued Operation, Net real estate Disposal group, including discontinued operation, net real estate. Net real estate Consolidation Items Consolidation Items [Domain] Basic weighted-average OP Units outstanding Weighted Average Limited Partnership Units Outstanding, Basic Luxury hotel with event space. Luxury Hotel With Event Space [Member] Entity Small Business Entity Small Business Retained Earnings (Accumulated deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Retained Earnings Retained earnings (deficit) Balances Total partners’ capital Balances Partners' Capital, Including Portion Attributable to Noncontrolling Interest Mezzanine Investment [Member] Mezzanine Investment [Member] Mezzanine Investment [Member] Organization Nature of Operations [Text Block] Financial Support to Nonconsolidated Legal Entity [Domain] Parkmerced Investment [Member] Parkmerced Investment [Member] Parkmerced investment. Remaining commitments. Remaining Commitments Remaining commitments Accessory Dwelling Units Member Accessory dwelling units member. Accessory Dwelling Units [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Accrued Distributions And Returns To Noncontrolling Interests Accrued distributions and returns to noncontrolling interests. Distributions and returns to noncontrolling interests Lease Contractual Term [Axis] Leases [Abstract] Interest expense Accrued Interest Expense Accrued Interest expense. Weighted Average Number of Shares Outstanding, Diluted, Adjustment Diluted OP Unit equivalents outstanding Diluted share equivalents outstanding Lessee, Lease, Description [Line Items] Amendment Flag Amendment Flag Impairment of Real Estate Impairment on real estate General Partner And Special Limited Partner [Member] General Partner and Special Limited Partner [Member] General partner and special limited partner. Product and Service [Domain] Finance Lease, Interest Expense Interest on lease liabilities Disposal Group, Including Discontinued Operation, Assets, Current Assets from discontinued operations, net Assets from discontinued operations, net LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Redeemable noncontrolling interest. Redeemable Noncontrolling Interest [Policies] Common Noncontrolling Interests in Aimco Operating Partnership Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by (used in) operating activities Total estimated assets Accrued Estimated Assets Accrued estimated assets. Disposal Group, Including Discontinued Operation, Other Assets, Current Other assets, net Time Based Restricted Stock Awards [Member] Time based restricted stock awards. Time Based Restricted Stock Awards Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Common Stock [Member] Common Stock [Member] Lessee, Operating Lease, Liability, to be Paid, Year Three 2028 Unconsolidated apartment communities. Unconsolidated Apartment Communities [Member] Commercial Space Lease [Member] Commercial Spaces [Member] Commercial spaces. Amortization of Debt Discount (Premium) Amortization of discount Non-recourse property debt, net Non-recourse property debt and construction loans, net Secured Debt, Total Secured Debt Escrow Deposit Held in escrow Realized and unrealized gains (losses) on equity investments Realized And Unrealized Gains Losses On Equity Investments Realized and unrealized gains losses on equity investments. Realized and unrealized (gains) losses on equity investments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity Total adjustments Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Interest rate Portion at Fair Value Measurement [Member] [Default] Portion at Fair Value Measurement [Member] Entity Address, Address Line One Entity Address, Address Line One Redemption of OP Units held by third parties and reallocation of noncontrolling interests in Aimco OP Redemptions Of Aimco Operating Partnership Units And Reallocation of Noncontrolling Interests Amount Redemptions of aimco operating partnership units and reallocation of noncontrolling interests amount. Common Noncontrolling Interests In Aimco Operating Partnership [Member] Common noncontrolling interests in Aimco operating partnership. Common Noncontrolling Interests in Aimco Operating Partnership [Member] Fair Value Hierarchy and NAV [Axis] Level 1 [Member] Earnings Per Share [Abstract] Income Tax, Policy [Policy Text Block] Income Tax Benefit (Expense) Noncontrolling interests in consolidated real estate partnerships Noncontrolling Interest in Limited Partnerships Derivative Asset, Total Interest rate contracts Derivative Asset Property operating expenses Property Operating Expenses Property operating expenses. Property operating expenses Investment Type Investment Type [Axis] Transaction costs Transaction Costs Transaction Costs. Right-of-use lease assets ROU assets Operating right-of-use lease assets Less: Discount Finance Lease, Liability, Undiscounted Excess Amount Other operating expenses not allocated to segments Other Operating Expenses Not Allocated To Reportable Segment Other Operating Expenses Not Allocated to Reportable Segment Other operating expenses not allocated to segments Gain (Loss) on Sale of Investments Gain (Loss) on Sale of Investments, Total Net gains (losses) on investment Disposal Group, Including Discontinued Operation, Revenue Rental and other property revenues Operating partnership unit equivalents. Operating Partnership Unit Equivalents [Member] OP Unit Equivalents [Member] Land Land Treasury Bill [Member] Treasury bill. Document Type Document Type Net real estate Real Estate Investment Property, Net Net real estate Entity Central Index Key Entity Central Index Key Accounts receivable, net of allowances Accounts Receivable, Allowance for Credit Loss, Current Mezzanine Investment Participation Sold Mezzanine investment participation sold. Mezzanine investment - participation sold Accounts Receivable, Held-for-Sale Notes receivable - held for sale Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation NET DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH Subsequent Event Type [Domain] Operating Activities Operating Activities [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Securities that could potentially dilute basic earnings per share or unit in future periods Realized and Unrealized Gains (Losses) on Equity Investments and Reduction in the Carrying Value of Other investments Included in Other Assets Realized and Unrealized Gains (Losses) on Equity Investments and Reduction in the Carrying Value of Other investments Included in Other Assets [Table Text Block] Realized and unrealized gains (losses) on equity investments and reduction in the carrying value of other investments included in other assets. Disposal Group Classification [Domain] Net income (loss) from discontinued operations attributable to Aimco Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic Including Participating Securities Net income (loss) from discontinued operations available to common shareholders, basic including participating securities. Common Stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share General Partners' Capital Account, Units Outstanding General partners' capital account units outstanding Accrued General And Administrative Expenses Accrued general and administrative expenses. General and administrative expenses Noncontrolling Interest, Increase from Subsidiary Equity Issuance Contributions from noncontrolling interests Contributions from noncontrolling interests in consolidated real estate partnerships Contributions from noncontrolling interests in consolidated real estate partnerships Lessor, Operating Lease, Payment to Be Received, Fiscal Year Maturity [Line Itam] Lessor, operating lease, payment to be received, fiscal year maturity. L T I P Two Units [Member] L T I P two units. LTIP II units Non-refundable Deposit Non-refundable deposit. Non-refundable deposit Cash Provided by (Used in) Discontinued Operation [Abstract] Adjustment to Reflect the Change to the Liquidation Basis of Accounting Adjustment to reflect the change to the liquidation basis of accounting. Adjustment to reflect the change to the liquidation basis of accounting Liabilities For Noncontrolling Interests In Consolidated Real Estate Partnerships Liabilities For Noncontrolling Interests In Consolidated Real Estate Partnerships. Liabilities for noncontrolling interests in consolidated real estate partnerships Redemptions Of Aimco Operating Partnership Units And Reallocation Of Noncontrolling Interests Shares Redemptions Of Aimco Operating Partnership Units And Reallocation Of Noncontrolling Interests Shares. Redemption of OP Units held by third parties and reallocation of noncontrolling interests in Aimco Operating Partnership (In shares) Realized Investment Gains (Losses) Realized Investment Gains (Losses), Total Net gains (losses) on investment Parent [Member] Total Aimco Equity [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares, Beginning Balance Unvested options outstanding Commitments related to operations [Member] Commitmentsrelatedtooperations [Member] Commitments related to operations [Member] Fair Value [Member] Estimate of Fair Value Measurement [Member] Total Financing Lease Liability Payments Due Amount of lessee's undiscounted obligation for lease payments for financing lease. Derivative, Notional Amount Derivative, Notional Amount Schedule Of Earnings Per Share And Dividends Per Share [Table] Schedule Of Earnings Per Share And Dividends Per Share [Table] Schedule of earnings per share and dividends per share. Ownership Ownership [Domain] Current Fiscal Year End Date Current Fiscal Year End Date Schedule Of Net Real Estate And Non Recourse Property Debt Net and Construction Loans Net By Segment [Table TextBlock] Schedule of net real estate and non recourse property debt net and construction loans net by segment. Schedule of Net Real Estate and Non-Recourse Property Debt, Net and Construction Loans, Net, by Segment Document Quarterly Report Document Quarterly Report Count of VIEs Number Of Variable Interest Entities Number of variable interest entities in which the company holds variable interests. Number Of variable interest entities Entity Address, State or Province Entity Address, State or Province Redeemable Noncontrolling Interest [Line Items] Redeemable Noncontrolling Interest [Line Items] Investment, Name [Domain] Net Assets in Liquidation Disclosure [Text Block] Net assets in liquidation disclosure. Net Assets in Liquidation Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Assets Held for Sale and Discontinued Operations Geographical [Axis] Lease liabilities Lease Liabilities Lease Liabilities from both finance and operating leases. Discontinued Operations, Policy [Policy Text Block] Assets Held for Sale and Discontinued Operations Real Estate Property [Table] Real Estate Property [Table] Real estate property. Finance Lease, Liability, Statement of Financial Position [Extensible List] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Number of real estate properties sold Number of Real Estate Properties Sold Number of real estate properties sold. Depreciation and Amortization, Discontinued Operations Depreciation and amortization Income (Loss) from Continuing Operations, Per Basic Share Income (loss) from continuing operations attributable to Aimco Operating Partnership per common unit Income (loss) from continuing operations attributable to Aimco per common share - basic Deferred Income Tax Assets, Net, Total Deferred Income Tax Assets, Net Deferred tax assets Plan of Sale and Liquidation [Member] Plan of sale and liquidation. Total Long-Term Debt, Fair Value Subsequent Event [Member] Oak Shore. Oak Shore [Member] Oak Shore [Member] Equity Method Investment, Nonconsolidated Investee [Domain] Net issuances of common stock and other. Net Issuances Of Common Stock And Other Other common stock issuances, net of withholding taxes Proceeds from Non Recourse Construction Loans and Bridge Financing Proceeds from non-recourse construction loans and bridge financing. Proceeds from non-recourse construction loans and bridge financing Other Commitments Other Commitments [Domain] Debt Instrument, Unamortized Discount Debt Instrument, Unamortized Discount, Total Unamortized discount Related Party Transaction [Axis] Restricted cash policy text block. Restricted Cash Policy Text Block Restricted Cash Increase (Decrease) in Operating Assets, Total Increase (Decrease) in Operating Assets Operating assets, net Operating assets, net Percentage of the Aimco Operating Partnership common partnership units and equivalents owned by Aimco Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest New York City and Atlanta, Georgia [Member] New York City and Atlanta, Georgia. New York City and Atlanta, Georgia [Member] Disposal Groups, Including Discontinued Operations [Table Text Block] Summary of Disposal Groups Including Discontinued Operations Real Estate Partnership [Member] Real Estate Investments [Member] Real estate investments Minimum [Member] Minimum [Member] Financial Instrument [Axis] Plantation, Florida, and Nashville, Tennessee [Member] Plantation, Florida, and Nashville, Tennessee [Member] Plantation, Florida, and Nashville, Tennessee. Increase due to allocation of noncontrolling interest in Aimco Operating Partnership Increase Due to Allocation of Noncontrolling Interest in Aimco Operating Partnership. Increase due to allocation of noncontrolling interest in Aimco Operating Partnership Real Estate [Member] Decrease due to estimated net realizable value of other assets, net Decrease Due to Estimated Net Realizable Value of Other Assets, Net Decrease due to estimated net realizable value of other assets, net. Schedule of Assets and Liabilities Related to Real Estate Properties Held for Sale [Table Text Block] Schedule of assets and liabilities related to real estate properties held for sale. Schedule of Assets and Liabilities Related to Real Estate Properties Held for Sale Partners' Capital, Ending Balance Partners' Capital, Beginning Balance Partners’ capital attributable to Aimco Operating Partnership Partners' Capital Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Nonrecurring [Member] Principal Repayments on Non Recourse Construction Loans and Bridge Financing Principal repayments on non-recourse construction loans and bridge financing. Principal repayments on non-recourse construction loans and bridge financing Segment Reporting [Abstract] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of Fair Value for Interest Rate Contracts and Investments in Stock and Real Estate Technology Funds Unrealized Gain (Loss) on Investments Unrealized gains (losses) on investment Net gains (losses)/ Unrealized gains (losses) on investment Other Assets, Miscellaneous, Total Deferred costs, deposits, and other Other Assets, Miscellaneous SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Ending Balance SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Beginning Balance Accumulated depreciation SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation Schedule of Minimum Lease Payments from our Office Space Sublease and Commercial Space Leases, Excluding Extension Options Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Balances (in shares) Balances (in shares) Shares, Outstanding Sublease income Sublease Income Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of Notes Receivable Restricted Cash and Cash Equivalents, Total Restricted cash Restricted Cash and Cash Equivalent Liquidation Basis [Member] Liquidation basis. Liquidation Value [Member] Commitments and Contingencies Commitments and contingencies (Note 6) Cash payment for value neutral transaction Cash payment for value neutral transaction. Unconsolidated Real Estate Partnership [Member] Unconsolidated Real Estate Partnership Member Unconsolidated Real Estate Partnerships [Member] Other adjustments to income (loss) from discontinued operations Other adjustments to income (loss) from discontinued operations Other Adjustments to Income, Discontinued Operations I Q H Q [Member] IQHQ [Member] I Q H Q Member Operating Lease, Liability, Total Total lease liabilities Operating Lease, Liability Operating lease liability Forecast [Member] Forecast [Member] Plan of Sale and Liquidation Liquidation Basis of Accounting [Text Block] Schedule of Earnings Per Share and Dividends Per Share [Line Items] Schedule Of Earnings Per Share And Dividends Per Share [Line Items] Schedule of earnings per share and dividends per share. Equity method investment term. Equity Method Investment Term Equity method investment term Disposal Group, Including Discontinued Operation, Interest Income Interest income Other [Member] Other Real Estate [Member] Other Real Estate [Member] - Other Real Estate segment. RET Ventures [Member] R E T Ventures [Member] RET Ventures Member. Continuing Operations [Member] Continuing Operations [Member] Lessee, Lease, Description [Table] Finance leases, weighted-average discount rate Financing leases, weighted average discount rate, percent Finance Lease, Weighted Average Discount Rate, Percent Weighted average ownership interest Holders Of Common O P Units Economic Interest Holders of common OP units economic interest. Accrued capital expenditures Capital Expenditures Incurred but Not yet Paid Capital expenditures Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Net income (loss) attributable to Aimco Lease Contractual Term [Domain] Total real estate Disposal Group, Including Discontinued Operation, real estate Disposal group, including discontinued operation, real estate, Disposal Group, Including Discontinued Operation, Operating Expense Total operating expenses Real Estate, Policy [Policy Text Block] Real Estate Real Estate Sale Contract Value Real estate sale contract value. Real estate sale contract value Long-Term Debt, Type [Domain] Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Basic weighted-average common stock outstanding Weighted-average common shares/units outstanding - basic Scenario [Axis] Document Information [Line Items] Document Information [Line Items] Other, net Stockholders' Equity, Other Other, net Accrued Capital Expenditures For Active Construction Accrued capital expenditures for active construction. Capital expenditures for active construction Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships Noncontrolling Interest in Net Income (Loss) Limited Partnerships, Redeemable Less: Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Remainder of 2026 Property Insurance Expense, Net of Capitalized Amounts Property insurance expense, net of capitalized amounts. Property insurance expense, net of capitalized amounts Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Net income (loss) from continuing operations Income (loss) from continuing operations Segments Segments [Axis] Sublease expiration date. Sublease Expiration Date Sublease expiration date Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Net income attributable to discontinued operations subject to tax Income (loss) from discontinued operations before income tax Long-Lived Tangible Asset Long-Lived Tangible Asset [Domain] Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation [Abstract] Liabilities for estimated costs in excess of estimated receipts during liquidation. Subsequent Events Subsequent Events [Text Block] Non-recourse property debt and construction loans, net Total indebtedness Long-Term Debt Cash Cash APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Financing Notes Amount At Included Sale Financing notes amount at included sale . Leases of company as lessor and lessee. Leases Of Company As Lessor And Lessee [Text Block] Lease Arrangements Note B [Member] Note B. Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total Aimco equity Equity, Attributable to Parent Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Liquidating Distributions To Common Stockholders Liquidating distributions to common stockholders. Liquidating distributions to stockholders Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Residual value of leased assets Residual Value of Leased Asset Residual Value of Leased Asset, Total Statement of Stockholders' Equity [Abstract] Real Estate Tax Expense Real estate taxes, net of capitalized amounts Development and Redevelopment [Member] Redevelopmentand Development [Member] Redevelopment and Development [Member] - Redevelopment and Development segment. Redeemable Noncontrolling Interest By Legal Entity [Table] Redeemable Noncontrolling Interest [Table] Carrying value of the investment Mezzanine investment Equity Method Investments Impairment charge related to property General Partners' Capital Account, Total General Partners' Capital Account General Partner and Special Limited Partner (140,158,784 OP Units issued and outstanding at December 31, 2025) Buildings and improvements Disposal Group, Including Discontinued Operation, Buildings and improvements Disposal group, including discontinued operation, buildings and improvements. Use of Estimates Use of Estimates, Policy [Policy Text Block] Equity Method Investment [Table] Entity Address, Address Line Two Entity Address, Address Line Two Fair Value Measurements and Disclosures Fair Value Disclosures [Text Block] Dividends Payable, Date Declared Dividends payable, date declared Nonrefundable Deposit Received Nonrefundable deposit received. Non-refundable deposits received Residential Community [Member] Residential community. Debt Instrument, Name [Domain] Measurement Input, Discount Rate [Member] Measurement Input, Discount Rates [Member] Accrued liabilities and other Accrued Liabilities and Other Liabilities Fair value adjustment gain Income (Loss) from Equity Method Investments, Total Income (Loss) from Equity Method Investments Income from unconsolidated real estate partnerships Loss (income) from unconsolidated real estate partnerships Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Apartment Homes Redevelopment Completed [Member] Apartment Homes Redevelopment Completed [Member] Apartment homes redevelopment completed. Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share, Total Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Income (loss) from discontinued operations attributable to Aimco Operating Partnership per common unit Income (loss) from discontinued operations attributable to Aimco per common share - basic Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Less: Net (income) loss from discontinued operations attributable to common noncontrolling interests in Aimco Operating Partnership (Income) loss from discontinued operations attributable to common noncontrolling interests in Aimco Operating Partnership Disposal Group, Including Discontinued Operation, Description and Timing of Disposal Disposal group, including discontinued operation, description and timing of disposal Liquidation Basis Of Accounting [Line Items] Liquidation basis of accounting. Liquidation Basis of Accounting [Line Items] Cash Provided by (Used in) Financing Activity, Discontinued Operation Total financing cash flows from (used in) discontinued operations Interest Expense, Total Interest expense Interest Expense, Operating and Nonoperating Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Receivable [Policy Text Block] Notes Receivable Entity Entity [Domain] Equity method investment redemption with step-up value to be paid in cash Equity Method Investment Redemption with Step-Up Value to be Paid in Cash Equity method investment redemption with step-up value to be paid in cash. Percentage of ownership of units Equity Method Investment, Ownership Percentage Stock Issued During Period, Value, Other Other OP Unit issuances Finance Lease, Liability, to be Paid, Year One 2026 Consolidated income (loss) subject to tax The portion of consolidated income (loss) related to the net income (loss) generated by taxable REIT subsidiaries and gains or losses on sale of certain properties by those subsidiaries. Consolidated Income Loss Subject To Tax Consolidated income (loss) subject to tax Lessor, Operating Lease, Payment to be Received, Year Two 2028 Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Lessee, Operating Lease, Liability, Payment, Due [Abstract] Accrued Income Taxes Accrued Income Taxes, Total Income tax Income tax Related and Nonrelated Parties [Axis] Notes Receivable, Held For Investment Notes receivable, held for investment. Notes receivable held for investment Increase Due to Estimated Net Realizable Value of Real Estate Increase due to estimated net realizable value of real estate. Increase due to estimated net realizable value of real estate Payments of deferred loan costs Payments of Loan Costs Interest Rate Options Member Interest Rate Options [Member] Interest Rate Options S 2025 Q2 Dividends [Member] S 2025 Q2 dividends. Non-recourse property debt, construction loans, and bridge financing Security Debt And Loans Payable Security debt and loans payable. Decrease due to estimated net realizable value of notes receivable Decrease Due to Estimated Net Realizable Value of Notes Receivable Decrease due to estimated net realizable value of notes receivable. Limited Partners' Capital Account, Units Issued Limited partners' capital account units issued Disposal Group Name [Domain] Retail space Area of Real Estate Property Entity Address, City or Town Entity Address, City or Town Other Commitments Other Commitments [Axis] Stock Repurchased During Period, Shares Stock repurchased during period, shares Common stock repurchased (In shares) Common stock repurchased (In shares) Time Period of Long-term Purchase Commitment Long-Term Purchase Commitment, Period Equity method investment interest rate Equity Method Investment Interest Rate Equity method investment interest rate. Purchase of interest rate contracts Payments for Derivative Instrument, Financing Activities Number of Reportable Segments Number of reportable segments Security Exchange Name Security Exchange Name Measurement Input, Cap Rate [Member] Measurement Input, Capitalization Rate [Member] Redeemable Noncontrolling Interest, Equity, Carrying Amount Redeemable Noncontrolling Interest, Equity, Carrying Amount, Total Noncontrolling interest in consolidated real estate partnerships Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income (loss) from continuing operations before income tax Stock-based compensation expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent, Total Net income attributable to discontinued operations subject to tax Sub-lease commencement date. Sub-lease Commencement Date Sub lease commencement date Measurement Input Type [Domain] Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share, Total Income (loss) from discontinued operations attributable to Aimco Operating Partnership per common unit Income (loss) from discontinued operations attributable to Aimco per common share - diluted Liabilities Related To Assets Held For Sale, Net Liabilities related to assets held for sale, net. Liabilities related to assets held for sale, net Liabilities related to discontinued operations and assets held for sale, net Brickell Bay Property Owner LLC [Member] Brickell Bay Property Owner LLC [Member] Brickell Bay Property Owner LLC. CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF YEAR Measurement Basis [Axis] Statistical Measurement Statistical Measurement [Domain] Document Period End Date Document Period End Date Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Exercisable, stock options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Capital expenditures Accrued Capital Expenditures Accrued capital expenditures. Long-term Purchase Commitment [Line Items] Long-Term Purchase Commitment [Line Items] Percentage of noncontrolling position sold Percentage of noncontrolling position sold. Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Participating securities that could potentially dilute basic earnings per share Operating Portfolio Segment [Member] Operating Portfolio Segment [Member] Operating portfolio segment. Statement of Financial Position [Abstract] Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Redeemable Other Other Variable lease income Operating Lease, Variable Lease Income Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships Net income (loss) attributable to noncontrolling interests in consolidated real estate partnerships Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest, Total Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Less: Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships Less: Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships Limited Partners' Capital Account, Units Outstanding Limited partners' capital account units outstanding Rents and other receivables Other Receivables Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Finance Lease, Liability, Payment, Due [Abstract] Total liabilities Liabilities Apartment Home Lease [Member] Apartment Homes [Member] Apartment homes Financial Instruments [Domain] Forfeitable dividends on certain unvested share-based compensation awards to be paid upon achievement Forfeitable Dividends on Certain Unvested Share-based Compensation Awards To Be Paid Upon Achievement Forfeitable dividends on certain unvested share-based compensation awards to be paid upon achievement. Non-recourse Property Debt [Member] Non Recourse Property Debt [Member] Non-recourse property debt. Non Recourse Property Debt Realized and unrealized (gains) losses on interest rate contracts Realized and Unrealized Gains (Losses) on Interest Rate Contracts Realized and Unrealized Gains (Losses) on Interest Rate Contracts. Realized and unrealized gains (losses) on interest rate contracts Mezzanine Investment Equity Method Investments [Policy Text Block] Operating Lease, Lease Income, Lease Payments Fixed lease income Real Estate Properties Real Estate Properties [Domain] Lessee, Operating Lease, Liability, to be Paid, Year Two 2027 Dividends Payable Policyholders' Dividend [Policy Text Block] Disposal Groups, Including Discontinued Operations [Table] Finance lease, amortization Finance Lease, Right-of-Use Asset, Amortization Amortization of right-of-use assets New York City [Member] NEW YORK General Partners' Capital Account, Units Issued General partners' capital account units issued Community [Member] Community. Weighted Average Number of Shares Outstanding, Diluted Diluted weighted-average common stock outstanding Diluted weighted-average common stock outstanding Weighted-average common shares/units outstanding - diluted Aimco [Member] Aimco. Aimco Entity File Number Securities Act File Number Payments of Ordinary Dividends, Common Stock Special cash dividend, paid Dividends paid on common stock and distributions paid on OP Units Partners' Capital, Including Portion Attributable to Noncontrolling Interest [Abstract] Partners' capital: Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] Line items represent basis of presentation and summary of significant accounting policies. Controllable operating expenses Controllable Operating Expenses Controllable operating expenses. Noncontrolling Interest in Net Income (Loss) Operating Partnerships, Redeemable Net (income) loss attributable to common noncontrolling interests in Aimco Operating Partnership Less: Net (income) loss from continuing operations attributable to common noncontrolling interests in Aimco Operating Partnership Net (income) loss attributable to common noncontrolling interests in Aimco Operating Partnership Total other assets, net Other assets, net Other Assets Cover [Abstract] Noncontrolling Interests In Consolidated Real Estate Partnerships [Member] Noncontrolling interests in consolidated real estate partnerships. Noncontrolling Interests in Consolidated Real Estate Partnerships [Member] Measurement Input Type [Axis] Third parties Third Parties [Member] Third parties. Summary information for the reportable segments Segment Reporting Information, Profit (Loss) [Abstract] Investments [Domain] Investments Scenario [Domain] Preferred equity interest receives preferred return Preferred Equity Interest Receives Preferred Return Preferred equity interest receives preferred return. Business Segments Segment Reporting Disclosure [Text Block] General and Administrative Expense, Total General and administrative expenses General and Administrative Expense Alternative Investment, Measurement Input Investment, measurement input Number of apartment communities Number of Apartment Communities Number of apartment communities. Non-refundable Deposit Released Amount Non-refundable deposit released amount. Non-refundable deposit released amount Corporate Non-Segment [Member] Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Revenues Revenue from Contract with Customer, Including Assessed Tax Hotel [Member] Hotel [Member] Subsequent Event [Table] Atlanta, Georgia [Member] Atlanta, Georgia. Organization [Line Items] Organization [Line Items] Organization Equity Method Investment, Realized Gain (Loss) on Disposal Assets Held for Sale, Net [Policy Text Block] Assets held for sale, net. Assets Held for Sale, Net Number of apartment communities Number of real estate properties Development segment [Member] Development segment. New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Cash Provided by (Used in) Investing Activity, Discontinued Operation Total investing cash flows from (used in) discontinued operations Massachusetts, New Hampshire, and Rhode Island [Member] Massachusetts, New Hampshire, and Rhode Island. Massachusetts, New Hampshire, and Rhode Island Cash, cash equivalents, and restricted cash Cash Cash Equivalents And Restricted Cash Cash cash equivalents and restricted cash. Decrease due to liabilities for estimated costs in excess of estimated receipts during liquidation Decrease Due to Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation Decrease due to liabilities for estimated costs in excess of estimated receipts during liquidation. Ownership Ownership [Axis] Payment made to Mezzaine Investment Payment made to mezzaine investment. Payment made to mezzaine investment Disposal Group, Including Discontinued Operation, Consideration Discontinued operations, gross purchase price Thereafter Lessor, Operating Lease, Payment to be Received, Thereafter Year Four Lessor, Operating Lease, Payment to be Received, Thereafter Year Four Carrying Value [Member] Reported Value Measurement [Member] Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Declaration date Distribution Made to Limited Partner, Declaration Date Other Property Operating Expenses Other property operating expenses. Other property operating expenses Dividends [Domain] Document Transition Report Document Transition Report Total operating expenses Operating Expenses Commercial Office Building [Member] Commercial Office Building [Member] Commercial Office Building. Asset Impairment Charges Asset Impairment Charges, Total Impairment Liabilities for estimated costs in excess of estimated receipts during liquidation Liabilities For Estimated Costs In Excess Of Estimated Receipts During Liquidation Liabilities for estimated costs in excess of estimated receipts during liquidation. Liabilities for estimated costs in excess of estimated receipts during liquidation Receivable [Domain] Aimco OP L.P. [Member] A I M C O O P L P [Member] A I M C O O P L P Member Payments for Repurchase of Common Stock Common stock repurchased Statement of Cash Flows [Abstract] Net assets in liquidation Net Assets In Liquidation Net assets in liquidation. Net assets in liquidation Net assets in liquidation, end of period Net assets in liquidation, beginning of period Estimated value of net assets in liquidation Operating Activities Operating Activities [Domain] Decrease Due to Write-off of Prepaid Assets and Deferred Costs Decrease due to write-off of prepaid assets and deferred costs. Decrease due to write-off of prepaid assets and deferred costs Equity [Text Block] Common Stock, OP Units, and Equivalents Accrued Interest income Accrued interest income. Interest income Earnings Per Share [Text Block] Earnings Per Share and Per Unit Balances (in shares) Balances (in shares) Shares, Issued Discontinued Operations and Disposal Groups [Abstract] Discontinued operations: Market Based Restricted Stock Awards [Member] Market based restricted stock awards. Market Based Restricted Stock Awards Net income (loss) attributable to Aimco common stockholders Net income (loss) attributable to Aimco common stockholders Commitment purchase amount Long-Term Purchase Commitment, Amount Partner Type of Partners' Capital Account, Name Partner Type of Partners' Capital Account, Name [Domain] Purchase price Financing notes amount at purchase price. Financing Notes Amount At Purchase Price Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Less: Net (income) loss from continuing operations attributable to common noncontrolling interests in Aimco Operating Partnership Operating lease costs Operating lease expenses Operating Lease, Cost Payments of Distributions to Affiliates Distributions to noncontrolling interests in consolidated real estate partnerships Other financing activities Proceeds from (Payment for) Other Financing Activity Intangible Assets, Net (Excluding Goodwill), Total Intangible Assets, Net (Excluding Goodwill) Intangible assets, net ASSETS Assets [Abstract] Noncontrolling Interests in Consolidated Real Estate Partnerships [Member] Partner Type [Axis] Cash Provided by (Used in) Operating Activity, Discontinued Operation Total operating cash flows from (used in) discontinued operations Investment in IQHQ Investment IQHQ [Policy Text Block] Investment IQHQ [Policy Text Block] Percentage of economic interest in Aimco Operating Partnership owned by Aimco Limited Liability Company L L C Or Limited Partnership L P Managing Member Or General Partner Economic Interest Limited liability company (LLC) or limited partnership (LP), managing member or general partner, economic interest. Document Fiscal Year Focus Document Fiscal Year Focus Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Accumulated depreciation Financing Note [Member] financing note. Restricted Cash from Discontinued Operations and Held for Sale Restricted cash from discontinued operations and held for sale. Restricted cash from discontinued operations and held for sale CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Aimco Operating Partnership [Member] A I M C O Operating Partnership [Member] Aimco operating partnership. Lessor, Operating Lease, Payment to be Received, Year One 2027 Reallocation Of Noncontrolling Interests Reallocation of noncontrolling interests. Reallocation of noncontrolling interests in Aimco Operating Partnership Percentage of Aimco Operating Partnership common partnership units and equivalents owned by other limited partners Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Purchase of redeemable noncontrolling interests in consolidated real estate partnerships Operating partnership units outstanding Operating Partnership Units Outstanding Operating partnership units outstanding. Total real estate Real Estate Investment Property, at Cost Increase in real estate purchase price Revision of Prior Period [Domain] Fair Value Measurement, Policy [Policy Text Block] Fair Value of Financial Instruments Schedule of Other Assets [Table Text Block] Summary of Other Assets, Net Income (loss) from discontinued operations attributable to Aimco per common share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Fair Value Disclosures [Abstract] Corporate fixed assets. Corporate fixed assets Corporate Fixed Assets Corporate fixed assets, net of accumulated depreciation of $9,559 and $9,591 as of September 30, 2025 and December 31, 2024, respectively Commitments and Contingencies Disclosure [Abstract] Prepaid Expense Prepaid expenses and real estate taxes Non-cash impairment charge Non-cash Impairment Charge Non-cash impairment charge. Planned Apartment Homes [Member] Planned Apartment Homes [Member] Planned apartment homes. 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Net income (loss) excluding redeemable noncontrolling interests Net income (loss) Net income (loss) excluding redeemable noncontrolling interests. Disposal Group, Including Discontinued Operation, Interest Expense Interest expense Repayments of Long-Term Lines of Credit Principal repayments on revolving credit facility Real Estate Property Ownership Real Estate Property Ownership [Axis] Net income attributable to Aimco Operating Partnership Net income (loss) Net income (loss) attributable to Aimco Net income (loss) attributable to Aimco Operating Partnership Disposal Group, Including Discontinued Operation, Liabilities Liabilities from discontinued operations, net Net Income (Loss) Attributable to Redeemable Noncontrolling Interest, Total Net income Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Debt Instrument [Axis] Derivative Instrument [Axis] Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Conversion Metric Share based compensation arrangement by share based payment award options outstanding weighted average conversion metric. Weighted-average conversion metric Accrued Property Operating Expenses Accrued property operating expenses. Property operating expenses Property technology funds. Property Technology Funds [Member] Property Technology Funds [Member] Noncontrolling interests in consolidated real estate partnerships Partners' Capital Attributable to Noncontrolling Interest Revenues, Total Rental and other property revenues Revenues Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by (used in) investing activities Net assets in liquidation attributable to noncontrolling interests in Aimco Operating Partnership Net Assets In Liquidation Attributable To Noncontrolling Interests In Partnership Net assets in liquidation attributable to noncontrolling interests in partnership. Gain on dispositions of real estate Gain (Loss) on Disposition of Real Estate, Discontinued Operations Gain on dispositions of real estate Finance leases, weighted average remaining lease term Financing leases weighted average remaining term Finance Lease, Weighted Average Remaining Lease Term Undistributed Earnings (Loss) Allocated to Participating Securities, Basic, Total Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Less: Net (income) loss allocated to Aimco participating securities Title of 12(b) Security Title of 12(b) Security Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Redemption of redeemable noncontrolling interests in consolidated real estate partnerships Redemption Of Redeemable Noncontrolling Interests In Consolidated Real Estate Partnerships Redemption of redeemable noncontrolling interests in consolidated real estate partnerships. Schedule of Weighted Average Remaining Terms and Discount Rates Schedule Of Weighted Average Remaining Lease Terms And Discount Rates [Table Text Block] Schedule of weighted average remaining lease terms and discount rates. Finance lease liability payments due after year four. Finance Lease Liability Payments Due After Year Four Thereafter Related and Nonrelated Parties [Domain] Proceeds From Repayment of Seller Financing Receivable Proceeds from repayment of seller financing receivable. Proceeds from repayment of seller financing receivable Net issuances of common stock share and other. Net Issuances Of Common Stock Share And Other Other common stock issuances, net of withholding taxes (In shares) Accrued liabilities and other Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current Equity method investment cost basis Equity method investment aggregate cost Initial cost of remaining balance Remainder of 2025 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Total future minimum lease receipts Lessor, Operating Lease, Payment to be Received Document Information [Table] Document Information [Table] Consolidated Entities [Member] Consolidated Entities [Axis] Right-of-use lease assets- finance leases Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total Financing right-of-use lease assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Legal Entity Legal Entity [Axis] Change in net assets in liquidation Increase (Decrease) In Net Assets in Liquidation [Abstract] Increase (decrease) in net assets in liquidation. Changes in operating assets and operating liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Unconsolidated Real Estate Partnerships Member. Unconsolidated Real Estate Partnerships[ Member] Unconsolidated Real Estate Partnerships Member Rental and other property revenues Accrued Rental And Other Property Revenues Accrued rental and other property revenues. Stock options outstanding (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning Balance Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic Income (loss) from discontinued operations attributable to Aimco common stockholders Income (loss) from discontinued operations attributable to Aimco common stockholders Lessor, Operating Lease, Payment to be Received, Year Four 2030 Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Increase due to estimated net realizable value of unconsolidated partnerships Increase Due to Estimated Net Realizable Value of Unconsolidated Partnerships Increase due to estimated net realizable value of unconsolidated partnerships. Measurement Frequency Measurement Frequency [Domain] Number of apartments properties sold Number of Apartments sold Number of apartments sold. Trading Symbol Trading Symbol Equity method investments fair value Equity Method Investments, Fair Value Disclosure Third-party equity position annual payments Third-party equity position annual payments. Estimated net inflows from real estate Accrued Estimated Net Inflows From Real Estate Accrued estimated net inflows from real estate. Financing Receivable, after Allowance for Credit Loss, Related Party [Extensible Enumeration] Assets Held For Sale, Net Assets held for sale, net. Assets from discontinued operations and held for sale, net Assets held for sale, net Subsequent Event Type [Axis] Family rental community in waterfront ground-up development. Family Rental Community in Waterfront Ground-up Development [Member] CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Fair Value, Recurring Fair Value, Recurring [Member] Entity Ex Transition Period Schedule of Equity Method Investments [Line Items] Total Lessee, Operating Lease, Liability, to be Paid Less: Discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Distribution Made to Limited Partner, Distributions Declared, Per Unit Liquidating distribution per share Unconsolidated real estate partnerships Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures Equity Components Equity Components [Axis] Note A [Member] Note A. Partners Capital Attributable To The Partnership [Member] Partners Capital Attributable To Partnership [Member] Partners' capital attributable to the partnership. Equity Component Equity Component [Domain] Number of residential apartment community reclassified upon reaching stabilization Number Of Apartment Communities Reclassified Upon Reaching Stabilization Number of apartment communities reclassified upon reaching stabilization. Proceeds from Noncontrolling Interests Contributions from noncontrolling interests in consolidated real estate partnerships Investments, Total Investment Investments Investment, impairment charge Rooms [Member] Rooms [Member] Rooms. Operating Lease Liability Statement Of Financial Position [Extensible List] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Utilities Expense, Net of Utility Reimbursements Utilities expense, net of utility reimbursements. Utilities expense, net of utility reimbursements Percentage of outstanding common shares voted Percentage of Outstanding Common Shares Voted Percentage of outstanding common shares voted. Interest rate contracts Derivative, Fair Value, Net, Total Derivative, Fair Value, Net Fair value of instruments Proceeds from Partnership Contribution Contributions from redeemable noncontrolling interests Preferred equity commitment from a third-party. Preferred Equity Commitment From A Third-party Preferred equity commitment from a third-party Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Financing Receivable, after Allowance for Credit Loss Notes receivable Total notes receivable Liquidation transaction costs Accrued Liquidation Transaction Costs Accrued liquidation transaction costs. Plan of sale and liquidation, common stock voting rights Common Stock, Voting Rights Redemptions Redeemable noncontrolling interest equity redemptions Redeemable noncontrolling interest equity redemptions. Equity Method Investment, Nonconsolidated Investee [Axis] Non-recourse construction loans. Non-recourse Construction Loans [Member] Non-recourse Construction Loans [Member] Non-recourse construction loans and bridge financing Maximum [Member] Maximum [Member] Dividends Payable, Date to be Paid Dividends payable, date to be paid Distribution date Distribution Made to Limited Partner, Distribution Date Statistical Measurement Statistical Measurement [Axis] Receivables, Net, Current, Total Notes receivable Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common Stock, Value, Issued Common Stock, $0.01 par value, 140,158,784 shares issued and outstanding at December 31, 2025 Dividends [Axis] Consolidation, Policy [Policy Text Block] Principles of Consolidation Total equity Balances Balances Equity, Including Portion Attributable to Noncontrolling Interest Equity balances SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross, Ending Balance SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross, Beginning Balance Total real estate SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross Legal Entity Type of Counterparty Legal Entity Type of Counterparty [Domain] Redeemed Preferred Equity Interest Redeemed preferred equity interest. Number of Properties Sold Number of properties sold. Number of properties sold Income (Loss) from Continuing Operations, Per Diluted Share Income (loss) from continuing operations attributable to Aimco Operating Partnership per common unit Income (loss) from continuing operations attributable to Aimco per common share - diluted Liquidating Distributions To Noncontrolling Interests Liquidating distributions to noncontrolling interests. Liquidating distributions to noncontrolling interests in Aimco Operating Partnership Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment of Real Estate and Other Long-lived Assets Amortization of Debt Issuance Costs Other, including amortization of debt issuance costs Increase Due to Remeasurement of Liabilities Increase due to remeasurement of liabilities. Increase due to remeasurement of liabilities Distributions to redeemable noncontrolling interests. Distributions to Redeemable Noncontrolling Interests Distributions to redeemable noncontrolling interests Payment, Tax Withholding, Share-Based Payment Arrangement Payments related to withholding taxes for share-based compensation Minimum Annual Lease Payments Under Operating, Financing Leases Lessee Operating And Financing Lease Liability Maturity Table [Text Block] Minimum annual rental payments under these operating leases and financing leases. Accounts Payable and Other Accrued Liabilities Accounts payable and accrued expenses Property Operating Expenses, Discontinued Operations Amount of property operating expenses attributable to discontinued operations. Property operating expenses San Diego, California [Member] San Diego, California. San Diego, California [Member] Land Disposal Group, Including Discontinued Operation, Land Disposal group, including discontinued operation, land. Entity Registrant Name Entity Registrant Name Preferred Equity Interest In One Joint Ventures Accruing Preferred Return Preferred equity interest in one joint ventures accruing preferred return. Preferred equity interest in one joint ventures accruing preferred return Schedule Of Change In Liabilities For Estimated Costs In Excess Of Estimated Receipts During Liquidation [Table Text Block] Schedule of change in the 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 Other (expense) income, net Other Nonoperating Income (Expense), Total Other Nonoperating Income (Expense) Other income (expense), net Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Additional paid-in capital Additional Paid in Capital Restricted cash Disposal Group, Including Discontinued Operation, Restricted cash Disposal group, including discontinued operation, restricted cash. Subsequent Events [Abstract] Proceeds from Sale, Real Estate, Held-for-Investment Proceeds from Sale, Real Estate, Held-for-Investment, Total Proceeds from dispositions of real estate Discontinued Operations, Held-for-Sale [Member] Consolidated Entities Consolidated Entities [Domain] Cost Of Derivative Instrument Costs associated with a derivative instrument. Derivative instruments acquired Premium amount, paid Income tax expense (benefit) Income tax benefit Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Income tax benefit (expense) Income tax benefit (expense) Measurement Frequency Measurement Frequency [Axis] Common Stock, Dividends, Per Share, Cash Paid Cash dividend paid per share Other Investments, Total Other Investments Other investments Repurchases of OP Units held by Aimco Stock Repurchased During Period, Value Common stock repurchased Common stock repurchased Buildings and improvements SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Building and Improvements, Amount Diluted weighted-average OP Units outstanding Weighted Average Limited Partnership Units Outstanding, Diluted Income (loss) from discontinued operations attributable to Aimco per common share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Right-of-use lease assets Right Of Use Asset Including Finance And Operating Leases Right of use asset including finance and operating leases. Planned homes member. Planned Homes Member Planned Homes [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Wholly And Partially Owned Consolidated Properties [Member] Wholly And Partially Owned Consolidated Properties [Member] Consolidated Properties including those that are wholly and partially owned Lease terms Lessee, Operating Lease, Remaining Lease Term Consolidated Properties [Member] Liability Class Liability Class [Axis] Disposal Group Classification [Axis] Reconciliation of Equity under Going Concern Basis of Accounting to Net Assets in Liquidation Under Liquidation Basis of Accounting [Table Text Block] Reconciliation of equity under going concern basis of accounting to net assets in liquidation under liquidation basis of accounting. Reconciliation of Total Equity Under Going Concern Basis of Accounting to Net Assets in Liquidation Under Liquidation Basis of Accounting Consolidation Items Consolidation Items [Axis] S 2025 Q3 Dividends [Member] S 2025 Q3 dividends. Total estimated liabilities Accrued Estimated Liabilities Accrued estimated liabilities. Limited Partners [Member] Limited Partner [Member] Note A Renewal Options One [Member] Note A renewal options One. Other investing activities Payment for (Proceeds from) Other Investing Activity Payments for (Proceeds from) Other Investing Activities, Total Schedule of Reconciliation of Cash Flow Information Restrictions on Cash and Cash Equivalents [Table Text Block] Total assets Assets Increase (Decrease) in Operating Liabilities, Total Increase (Decrease) in Operating Liabilities Operating liabilities, net Income Statement [Abstract] S 2026 Q1 Dividends [Member] S 2026 Q1 dividends Commitments related to development, redevelopment and capital improvement activities [Member] Commitmentsrelatedtodevelopmentredevelopmentandcapitalimprovementactivities [Member] Commitments related to development, redevelopment and capital improvement activities [Member] Lease, Cost [Abstract] Loans Payable, Total Loans Payable Non-recourse construction loans and bridge financing, net Non-recourse construction loans, net Dividends Payable, Date to be Paid, Year and Month Dividends payable, month and year to be paid Net Assets in Liquidation [Abstract] Net assets in liquidation. Earnings Per Share, Diluted [Abstract] Earnings (loss) per common share - diluted Earnings (loss) per share - diluted Net income (loss) attributable to Aimco per common share - diluted (Note 4) Earnings (loss) per share - diluted Net income (loss) attributable to Aimco per common share - diluted Net income (loss) attributable to Aimco per common share - diluted (Note 8) Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Information for Reportable Segments Operating Segments [Member] Operating Segments [Member] Long Term Purchase Commitment [Table] Long-Term Purchase Commitment [Table] Commercial Leases [Member] Commercial leases. City Area Code City Area Code S 2025 Q1 Dividends [Member] S 2025 Q1 Dividends. Discontinued Operation, Tax Effect of Discontinued Operation Income tax expense attributable to discontinued operations Income tax benefit (expense) Income tax (benefit) expense Income tax (benefit) expense Increased Compounding Interest Rate Increased compounding interest rate. Increased compounding interest rate Proceeds from revolving credit facility Proceeds from Lines of Credit Proceeds from Lines of Credit, Total Debt Instrument, Face Amount Debt instrument, face amount Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income (loss) from discontinued operations, net of taxes Unconsolidated Joint Ventures [Member] Unconsolidated Entities [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Other estimated (costs), net of receipts Accrued Other Estimated (Costs), Net Of Receipts Accrued other estimated (costs), net of receipts. Decrease Due to Allocation to Noncontrolling Interest in Aimco Operating Partnership Decrease due to allocation to noncontrolling interest in Aimco Operating Partnership. Decrease due to allocation to noncontrolling interest in Aimco Operating Partnership Residential Apartment Communities In Waterfront Property Residential Apartment Communities In Waterfront Property [Member] Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Income (loss) from continuing operations attributable to Aimco common stockholders Income (loss) from continuing operations attributable to Aimco Operating Partnership's common unitholders Liquidation Basis Of Accounting [Table] Liquidation basis of accounting. Dividends declared Dividends, Cash Dividends, Cash, Total Dividends declared Distribution declared Operating leases weighted average remaining term Operating leases, weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Real Estate Real Estate [Domain] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Land SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Land, Amount Disposal Group Name [Axis] Total lease costs, net of capitalized amounts Lease, Cost Noncontrolling Interests Aimco Operating Partnership [Member] Noncontrolling interests aimco operating partnership. Redemption of OP Units held by Aimco Redemptions Of Aimco Operating Partnership Units Amount Redemptions Of Aimco Operating Partnership Units Amount Common Stock issued on redemption of OP Units Redemption of OP Units held by third parties Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table] Lessor, operating lease, payment to be received, fiscal year maturity. Lessee operating lease liability payments due after year four. Lessee Operating Lease Liability Payments Due After Year Four Thereafter Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation, Ending Balance Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation, Beginning Balance Cash, cash equivalents, and restricted cash Operating Income (Loss) Property net operating income (loss) Common noncontrolling interests in Aimco Operating Partnership Noncontrolling Interest in Operating Partnerships Other, net Partners' Capital, Other Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit) [Member] Share-based Payment Arrangement, Noncash Expense, Total Share-Based Payment Arrangement, Noncash Expense Share-based compensation expense Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] REVENUES Number of units in real estate property Number of Units in Real Estate Property Real estate technology funds. Real Estate Technology Funds [Member] Real Estate Technology Funds [Member] Operating leases, weighted-average discount rate Operating leases, weighted average discount rate, percent Operating Lease, Weighted Average Discount Rate, Percent Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Class of Stock [Line Items] Net Cash Provided by (used in) Financing Activities Net cash used in financing activities Lessor, Operating Lease, Payment to be Received, Year Three 2029 Schedule of Lease Costs, Net of Capitalized Lease Costs Lease, Cost [Table Text Block] Derivative Contract [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Operating lease percentage of total revenue Operating Lease Percentage Of Revenue Operating lease percentage of revenue. Undrawn non-resource construction loan. Undrawn Non-resource Construction Loan Undrawn non-resource construction loan Entity Interactive Data Current Entity Interactive Data Current Operating Lease, Lease Income [Table Text Block] Lease Income for Residential and Commercial Property Leases Fair Value Measurement [Domain] CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Proceeds from interest rate contracts Proceeds from Derivative Instrument, Financing Activities Proceeds from swaption Redeemable Noncontrolling Interest Equity Distributions Redeemable noncontrolling interest equity distributions. Distributions Distributions Chicago Portfolio [Member] Chicago portfolio. Percentage based on sales, operating lease Lessee, Operating Lease, Variable Lease Payment, Terms, Percentage Lessee, operating lease, variable lease payment, terms, percentage Real Estate, Type of Property Real Estate, Type of Property [Axis] Corporate Fixed Assets, Net of Accumulated Depreciation Corporate fixed assets, net of accumulated depreciation. Corporate fixed assets, net of accumulated depreciation Entity Tax Identification Number Entity Tax Identification Number Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity REVENUES Revenues [Abstract] Land [Member] Ground Lease [Member] Long-Term Debt, Type [Axis] Contributions Redeemable Noncontrolling Interest Capital Contributions Redeemable noncontrolling interest capital contributions. Debt Instrument, Term Term Non Recourse Property Debt And Construction Loans Net Non recourse property debt and construction loans net. Non-recourse property debt and construction loans, net Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Redeemable Noncontrolling Interest [Table Text Block] Summary of Reconciliation of Redeemable Noncontrolling Interests in Real Estate Partnerships Number of Real Estate Properties Held For Sale Number of real estate properties held for sale. Number of real estate properties held for sale Redemption of OP Units held by Aimco (in shares) Redemption of Aimco Operating Partnership units (in shares) Redemption Of Aimco Operating Partnership Units Shares Redemption of Aimco Operating Partnership units, Shares. Redemption of OP Units held by third parties, (In share) Local Phone Number Local Phone Number Related Party Transaction [Domain] Partners' Capital Account, Redemptions Common Stock issued on redemption of OP Units Redemption of OP Units held by third parties and reallocation of limited partners' interests in Aimco Operating Partnership Finance Lease, Liability, to be Paid, Year Two 2027 Residential Apartment Communities In Redevelopment Waterfront Property [Member] Residential Apartment Communities In Redevelopment Waterfront Property [Member] Residential Apartment Communities In Redevelopment Waterfront Property [Member] Capital expenditures Payments for Capital Improvements Lessee, Operating Lease, Liability, to be Paid, Year Four 2029 Other Items Included In Continuing Operations Other items included in continuing operations, including but not limited to nonoperating income and expense, income from discontinued operations and the provision (benefit) for income taxes. Other items included in income (loss) from continuing operations before income tax Impairment Charge on Reclassified Assets Impairment charge related to property Unconsolidated Properties [Member] Unconsolidated Properties [Member] Proceeds from sale of noncontrolling position Proceeds from sale of noncontrolling position. Stock, Class of Stock [Table] Entity Emerging Growth Company Entity Emerging Growth Company Event space square foot Area of Land Disposal Group, Including Discontinued Operation, Operating Income (Loss) Income (loss) from discontinued operations, net of taxes Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation Liabilities for Estimated Costs in Excess of Estimated Receipts During Liquidation [Disclsoure Text Block] Liabilities for estimated costs in excess of estimated receipts during liquidation.