Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Huntington Gateway Huntington Gateway [Member] Huntington Gateway Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement Statistical Measurement [Domain] Preferred equity investment Equity Method Investments [Member] Carrying Value Reported Value Measurement [Member] Dilutive net income (loss) attributable to the AIR Operating Partnership’s common unitholders Net Income (Loss) Available to Common Stockholders, Diluted Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Beginning balance Ending balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest Adjustment to Compensation, Amount Adjustment to Compensation Amount Number of apartment communities sold Number of Real Estate Properties Sold Number of Real Estate Properties Sold Segment Reporting [Abstract] Segment Reporting [Abstract] San Mateo, California San Mateo, California [Member] San Mateo, California Core JV Affiliate of Core Investment [Member] Affiliate of Core Investment Restatement Determination Date Restatement Determination Date Derivative Instrument [Axis] Derivative Instrument [Axis] Variable Rate Property Debt Variable Rate [Member] Variable rate Redemption of common and preferred units Payments For Redemption Of Common And Preferred Units Payments For Redemption Of Common And Preferred Units Measurement Frequency [Axis] Measurement Frequency [Axis] Effect of dilutive instruments Dilutive Securities, Effect on Basic Earnings Per Share Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Number of apartment community sales Number Of Real Estate Sales Number Of Real Estate Sales Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Disposal Group Classification Disposal Group Classification [Axis] Other items included in income (loss) before income tax benefit (expense) Other Items Included In Continuing Operations Other items included in continuing operations, including but not limited to nonoperating income and expense and the provision (benefit) for income taxes. Investments [Domain] Investments [Domain] Disposal Group, Held-for-Sale, Not Discontinued Operations Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Leases [Abstract] Leases [Abstract] Consolidated Entities [Domain] Consolidated Entities [Domain] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Aggregate notional amount Derivative, Notional Amount Weighted average common units outstanding - basic (in shares) Basic weighted-average common units outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Corporate Services Schedule of Related Party Transactions [Table Text Block] Non-recourse property debt, net Non-recourse property debt, net Secured Debt Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Reportable segment Number of Reportable Segments Proportionate property net operating income (loss) Operating Income Loss Property Operating Income (Loss), Property Total real estate Real Estate Investment Property, at Cost Cash flow hedge gain (loss) to be reclassified within 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Entity Address, City or Town Entity Address, City or Town Total Fair Value Derivative, Fair Value, Net Value-Add JV Affiliate of Value-Add Investment [Member] Affiliate of Value-Add Investment Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Income (loss) from unconsolidated real estate partnerships (Income) loss from unconsolidated real estate partnerships Net income (loss) from real estate investment partnership Net Income (Loss) from Real Estate Investment Partnership Property management expense Utility Expenses, Net of Reimbursement Utility Expenses, Net of Reimbursement Assets held for sale Disposal Group, Including Discontinued Operation, Assets Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Asset derivatives, fair value Fair Value Hedge Assets Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Gain on dispositions of real estate Gain Loss On Derecognition Of Leased Properties And Dispositions Of Real Estate Gain loss on derecognition of leased properties and dispositions of real estate. Redemption of common partnership units Partners' Capital Account, Redemptions Net income (loss) attributable to the AIR Operating Partnership’s common unitholders Basic net income (loss) attributable to the AIR Operating Partnership’s common unitholders Net Income (Loss) Available to Common Stockholders, Basic Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Investment interest rate Investment Interest Rate 2029 Lessor, Operating Lease, Payment to be Received, Year Three Parent Company Parent Company [Member] Distribution Type [Axis] Distribution Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Impairment of Real Estate Long-Lived Asset, Excluding Intangible Asset and Goodwill, Impairment and Disposal [Policy Text Block] Effect of changes in ownership of consolidated entities Partners Capital Account Effect Of Changes In Ownership Of Partnership Units And Consolidated Partners capital account effect of changes in ownership of partnership units and consolidated. Derivative, average variable interest rate Derivative, Average Variable Interest Rate Accounting Pronouncements Recently Issued New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Information for Reportable Segments Segment Reporting [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Significant Transactions Asset Acquisition [Text Block] Amortization of debt issuance costs Amortization of Debt Issuance Costs Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Summary information for the reportable segments Segment Reporting, Profit (Loss) [Abstract] Fixed Rate Member Ten Year Fixed Rate Financing [Member] Ten Year Fixed Rate Financing [Member] Total non-recourse property debt, net Third-party debt Fixed-rate non-recourse property debt Long-Term Debt Seller financing note receivable, net Notes Receivable, Fair Value Disclosure Document Period End Date Document Period End Date Net cash provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] AIMCO PROPERTIES, L.P Subsidiaries [Member] Numerator: Earnings Per Share, Basic [Abstract] Units outstanding (in shares) Temporary Equity, Shares Outstanding Leases Lessor, Operating Leases [Text Block] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Property management expenses Property management expenses Property Management Expenses Property Management Expenses Percentage of average ownership of portfolio Percentage Of Average Ownership Of Portfolio Percentage of average ownership of portfolio. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings per Unit Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Partner Type Partner Type [Axis] Geographical [Domain] Geographical [Domain] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Payment of distributions to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Operating lease, lease income, statement of income or comprehensive income Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Number of apartment homes acquired Number of Real Estate Properties Acquired Number of Real Estate Properties Acquired Denominator – units: Earnings Per Share, Diluted [Abstract] Unrealized (gain) loss on derivative instruments, net Unrealized Gain (Loss) on Derivatives Long-term debt, gross Long-Term Debt, Gross Miami, FL Miami, FL [Member] Miami, FL Asset Class [Domain] Asset Class [Domain] Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Purchases of real estate and deposits related to purchases of real estate Payments to Acquire Residential Real Estate Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average common units outstanding - diluted Dilutive weighted-average common units (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Partial consider selling value Partial Consider Selling Value Partial Consider Selling Value Derivative Financial Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] AIR Operating Partnership A I R Operating Partnership [Member] A I R Operating Partnership [Member] Other, net Partners' Capital, Other Dilutive common unit equivalents outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Other receivables Other Receivables Distribution Amount Distribution Made to Limited Partner, Cash Distributions Paid Award Timing Predetermined Award Timing Predetermined [Flag] Interest rate swaps, pay-fixed, receive-floating Interest Rate Swap, Floating To Fixed [Member] Interest Rate Swap, Floating To Fixed Capital expenditures Payments for Capital Improvements Loss on impairments of real estate and goodwill Impairment of Real Estate and Goodwill Impairment of Real Estate and Goodwill Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Carrying Value and Fair Value of Non-recourse Property Debt Schedule Of Carrying Value And Fair Value Of Non Recourse Property Debt [Table Text Block] Tabular disclosure of carrying value and fair value of non-recourse property debt. Virginia JV Affiliate of Virginia Investment [Member] Affiliate of Virginia Investment General Partner and Special Limited Partner General Partner And Special Limited Partner [Member] General partner and special limited partner. All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Partner Type of Partners' Capital Account, Name Partner Type of Partners' Capital Account, Name [Domain] Contribution to unconsolidated joint ventures Payments to Acquire Real Estate and Real Estate Joint Ventures Schedule of Reconciliation of Preferred OP Units Temporary Equity [Table Text Block] Schedule of 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] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Segments Segment Reporting [Text Block] Special Cash Distribution Special Cash Distribution [Member] Special Cash Distribution Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Fixed Rate Property Debt Fixed Rate [Member] Fixed rate Payment of distributions to General Partner and Special Limited Partner Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date LIABILITIES: Liabilities [Abstract] Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Boston, Massachusetts, Denver, Colorado, and San Diego, California Boston, Massachusetts, Denver, Colorado, and San Diego, California [Member] Boston, Massachusetts, Denver, Colorado, and San Diego, California Restricted cash Restricted cash Restricted Cash and Cash Equivalent Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Total partners’ deficit Equity, Including Portion Attributable to Noncontrolling Interest Investment in unconsolidated real estate partnerships AIR Operating Partnership's investment in balance Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures Partnership Interest Partnership Interest [Member] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Schedule of Real Estate Properties [Table] Real Estate Property, Ownership [Table] Payment of distributions to Limited Partners Payment Of Distributions To Preferred Noncontrolling Interests Payment Of Distributions To Preferred Noncontrolling Interests Extraordinary funds from community dispositions Extraordinary Distribution From Community Dispositions [Member] Extraordinary Distribution From Community Dispositions Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operations [Line Items] Affiliated Entity Affiliated Entity [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Schedule of Cash Distributions from Excess Partnership Cash to Holders Common OP Units and LTIP Units Distributions Made to Limited Partner, by Distribution [Table Text Block] Net real estate Net real estate Real Estate Investment Property, Net Apartment homes Apartment homes Apartment homes in communities owned by VIEs Number of Units in Real Estate Property Exercise Price Award Exercise Price CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Fair value recurring Fair Value, Recurring [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Fixed-rate non-recourse property debt Non Recourse Property Debt [Member] Non-recourse property debt. Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report 2027 Lessor, Operating Lease, Payment to be Received, Year One Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Preferred distributions Distributions Preferred Unitholders Cash Distributions, Preferred Unitholders, Cash Noncontrolling Interests in Consolidated Real Estate Partnerships Noncontrolling Interests In Consolidated Real Estate Partnerships [Member] Noncontrolling interests in consolidated real estate partnerships. Interest Rate Swap Interest Rate Swap [Member] Fort Lauderdale, Florida Fort Lauderdale, Florida [Member] Fort Lauderdale, Florida Debt Debt Disclosure [Text Block] Repayments of long-term debt Repayments of Long-Term Debt Disposal Group Classification Disposal Group Classification [Domain] Debt issuance costs, net of accumulated amortization Debt Issuance Costs, Net Number of consolidated VIEs Number Of Consolidated Variable Interest Entities Number Of Consolidated Variable Interest Entities Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Preferred equity investment Equity Method Investments PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Real estate taxes Real Estate Tax Expense Real Estate Properties Real Estate Properties [Domain] Property management and operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Number of states and district Number Of States And District Number Of States And District Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] ASSETS ASSETS: Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Fair Value, Nonrecurring Fair Value, Nonrecurring [Member] Insider Trading Policies and Procedures [Line Items] Receivables with imputed interest, amortization amount Receivables with Imputed Interest, Amortization Amount Other financing activities, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Total corporate service reimbursements received Corporate Service Reimbursements Received Corporate Service Reimbursements Received Repayments of debt Repayments of Debt Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Total lease income Operating Lease, Lease Income Operating segments Number of Operating Segments Entity Central Index Key Entity Central Index Key Other revenues Other Revenues [Member] Other revenues. All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate and other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Immaterial Unconsolidated Investments Immaterial Unconsolidated Investments [Member] Immaterial Unconsolidated Investments Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Ownership [Axis] Ownership [Axis] Noncontrolling interests in consolidated real estate partnerships Noncontrolling Interest in Limited Partnerships Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Significant Transactions [Abstract] Significant Transactions [Abstract] Significant transactions. EXPENSES Operating Expenses [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Buildings and improvements Investment Building and Building Improvements City Area Code City Area Code All Individuals All Individuals [Member] Proceeds from dispositions of unconsolidated real estate partnerships Payments for (Proceeds from) Other Real Estate Partnerships Partners' Capital Attributable to the AIR Operating Partnership Partners Capital Attributable To Partnership [Member] Partners' capital attributable to the partnership. Name Forgone Recovery, Individual Name Rental and other property revenues Rental And Other Property Revenues [Member] Rental and other property revenues. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] San Francisco, California and Minneapolis, Minnesota San Francisco, California and Minneapolis, Minnesota [Member] San Francisco, California and Minneapolis, Minnesota Distributions to common unitholders Partners' Capital Account, Distributions Statement [Line Items] Statement [Line Items] Total assets Assets Number of apartment communities in holding period, expected to sell Number Of Apartment Communities In Holding Period, Expected to Sell Number Of Apartment Communities In Holding Period, Expected to Sell Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Real Estate Operations Operating Segments [Member] Interest expense Interest Expense, Nonoperating Partners’ capital attributable to the AIR Operating Partnership Partners' Capital Basis of Presentation and Organization Nature of Operations [Text Block] PEO PEO [Member] Measurement Basis [Axis] Measurement Basis [Axis] Goodwill Goodwill Number of apartments Number of Apartments Number of Apartments Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Proceeds from real estate and real estate joint ventures Proceeds from Real Estate and Real Estate Joint Ventures Common Partnership Units Common Partnership Units [Member] Common Partnership Units Subsequent Event Type [Domain] Subsequent Event Type [Domain] Property management and operating expenses Operating Expenses Net income attributable to noncontrolling interests in consolidated real estate partnerships Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Write-off of redevelopment costs Redevelopment Costs, Written Off Redevelopment Costs, Written Off Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] San Jose, California and Minneapolis, Minnesota San Jose, California and Minneapolis, Minnesota [Member] San Jose, California and Minneapolis, Minnesota Award Timing Disclosures [Line Items] Net income (loss) attributable to the AIR Operating Partnership's common unitholders per unit - diluted (in dollars per share) Earnings per unit - diluted (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Variable lease income Operating Lease, Variable Lease Income Net 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 Ownership [Domain] Ownership [Domain] Common operating partnership units and equivalents outstanding (in shares) Operating Partnership Common Units Outstanding Operating partnership common units outstanding. Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Partially Owned Properties Partially Owned Properties [Member] Schedule of Equity Method Investments Equity Method Investments [Table Text Block] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fair Value Estimate of Fair Value Measurement [Member] Distribution percentage received Distribution Made to Limited Partner, Distributions Paid, Percentage Distribution Made to Limited Partner, Distributions Paid, Percentage Property operating expenses Property Operating Expenses Property operating expenses. legal ownership Equity Method Investment, Ownership Interest Sold Equity Method Investment, Ownership Interest Sold Other investing activities, net Payment for (Proceeds from) Other Investing Activity Schedule Of Segment Reporting Information By Segment [Table] Segment Reporting [Table] Net income allocated to preferred units Temporary Equity, Net Income Related Party Transaction [Table] Related Party Transaction [Table] Real Estate Operations Real Estate Operations [Member] Number of instruments held Derivative, Number of Instruments Held Interest rate swaps - pay-fixed, receive-floating Interest Rate Swaps, Pay-Fixed, Receive Floating [Member] Interest Rate Swaps, Pay-Fixed, Receive Floating Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Current Fiscal Year End Date Current Fiscal Year End Date Recognizing a gain on the disposition Gain (Loss) on Disposition of Business Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Measure: Measure [Axis] Investment in Unconsolidated Real Estate Partnerships Equity Method Investments and Joint Ventures Disclosure [Text Block] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] New England New England [Member] New England [Member] Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Operating expenses Other Cost and Expense, Operating Product and Service Product and Service [Domain] Entity Interactive Data Current Entity Interactive Data Current Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Limited Partners Limited Partner [Member] Entity Small Business Entity Small Business Comprehensive income (loss) attributable to the AIR Operating Partnership Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other operating expenses not allocated to segments Other Operating Expenses Not Allocated To Reportable Segment Other Operating Expenses Not Allocated to Reportable Segment Document Type Document Type 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] Redwood City, California Redwood City, California [Member] Redwood City, California Property management expenses Property Management Expenses [Member] Property Management Expenses Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Fair Value as of Grant Date Award Grant Date Fair Value Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Distribution Type [Domain] Distribution Type [Domain] Income (loss) before income tax benefit (expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 7) Commitments and Contingencies Total revenues Other revenues Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] General Partner and Special Limited Partner General And Special Limited Partners Capital Account The value of the general partner's and special limited partner's ownership interest. Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Loss on impairment of real estate Loss on impairment of real estate Impairment of Real Estate Gain on dispositions of real estate Gain (Loss) on Disposition of Real Estate, Discontinued Operations LIABILITIES AND PARTNERS’ DEFICIT Liabilities and Equity [Abstract] Purchase of corporate assets Payments To Acquire Purchases Of Corporate Assets Investing Activities Payments To Acquire Purchases Of Corporate Assets Investing Activities 2030 Lessor, Operating Lease, Payment to be Received, Year Four Schedule of Fair Value for Interest Rate Options and swaps Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Table] Reclassification of interest rate derivative gain to net income (loss) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Lessee, operating lease, term of contract Lessee, Operating Lease, Term of Contract PEO Name PEO Name Geographical [Axis] Geographical [Axis] Accrued liabilities and other Accrued liabilities and other Accrued Liabilities and Other Liabilities Total Lessor, Operating Lease, Payment to be Received Long-Lived Asset, Class Long-Lived Asset, Class [Axis] Principal payments and paydowns of non-recourse property debt Repayments of Secured Debt Other assets, net Other assets, net Other Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Liability Class [Axis] Liability Class [Axis] Number of unconsolidated investments Number of Unconsolidated Investments Number of Unconsolidated Investments Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Fixed lease income Operating Lease, Lease Income, Lease Payments Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Ownership (in percentage) Equity Method Investment, Ownership Percentage Limited Partners Limited Partners' Capital Account Land Land Schedule of Debt Schedule of Debt [Table Text Block] Distribution made to limited partner, distributions paid, per unit (in dollars per share) Distribution Paid Per Unit (in dollars per share) Distribution Made to Limited Partner, Distributions Paid, Per Unit Investment, Name [Domain] Investment, Name [Domain] Residential Lease Residential Lease [Member] Residential lease. Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Schedule of Derivative Financial Instrument and Hedging Activities Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Net income (loss) attributable to the AIR Operating Partnership's common unitholders per unit – basic (in dollars per share) Earnings per unit - basic (in dollars per share) Earnings Per Share, Basic Statistical Measurement Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Interest rate caps - sold Sold Interest Rate Caps [Member] Sold Interest Rate Caps Property management and operating expenses Cost of Revenue Award Type Award Type [Axis] 2026 (remaining) Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Product and Service Product and Service [Axis] Redeemable preferred units Balance at January 1, 2026 Balance at June 30, 2026 Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount Partners’ deficit: Partners' Capital [Abstract] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Proceeds from non-recourse property debt Proceeds from Issuance of Secured Debt Fair Value Measurement [Domain] Fair Value Measurement [Domain] Schedule of Lease Income for Operating Leases Operating Lease, Lease Income [Table Text Block] Redeemable Preferred OP Units Noncontrolling Interests In Company's Operating Partnership Policy [Policy Text Block] Noncontrolling Interests In Companys Operating Partnership Policy Seller financing note receivable, net Seller financing note net [Member] Seller financing note net [Member] Ground lease expense Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Real Estate Property Ownership Real Estate Property Ownership [Axis] Funds from ordinary income Ordinary Income Distribution [Member] Ordinary Income Distribution Total liabilities, redeemable preferred units, and partners’ deficit Liabilities and Equity Miami, Florida Miami, Florida [Member] Miami, Florida Employee Stock Option Share-Based Payment Arrangement, Option [Member] Schedule of Future Minimum Annual Rental Payments Receivable Under Residential and Commercial Leases Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Distributions per annum Temporary Equity Distribution Made To Member Or Limited Partner Distributions Paid Percentage Temporary Equity, Distribution Made to Member or Limited Partner, Distributions Paid, Percentage Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Extraordinary funds from financing proceeds Extraordinary Distribution From Financing [Member] Extraordinary Distribution From Financing Tabular List, Table Tabular List [Table Text Block] Common OP Units redeemed in exchange for cash during period (in shares) Partners' Capital Account, Units, Redeemed Other expenses, net Other expense, net Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name Real Estate Properties [Line Items] Real Estate Properties [Line Items] Extraordinary funds from community dispositions and financing proceeds Extraordinary Distribution From Disposition And Financing [Member] Extraordinary Distribution From Disposition And Financing Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative expenses General and administrative expenses General and Administrative Expense Long-Lived Asset, Class Long-Lived Asset, Class [Domain] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Net income attributable to the AIR Operating Partnership's preferred unitholders Preferred Stock Dividends and Other Adjustments Adjustment to Compensation: Adjustment to Compensation [Axis] Number of apartment communities Number of apartment communities Number of Real Estate Properties Hedging Designation [Domain] Hedging Designation [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Redemption of preferred units Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Related Party Transactions Related Party Transactions [Policy Text Block] Related Party Transactions Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Other, net Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Thereafter Lessor, Operating Lease, Payment to be Received, after Year Four Lessor, Operating Lease, Payment to be Received, after Year Four Gain (loss) on derivative instruments, net Gain (Loss) on Sale of Derivatives Entity Filer Category Entity Filer Category Insurance General Insurance Expense Loss on impairment of goodwill Loss on impairment of goodwill Goodwill, Impairment Loss Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Equity Method Investments and Joint Ventures [Abstract] VIEs with interests in apartment communities Number Of Variable Interest Entities Number of variable interest entities in which the company holds variable interests. Net income (loss) Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Statement of Partners' Capital [Abstract] Statement of Partners' Capital [Abstract] Interest rate caps Interest Rate Cap [Member] Proceeds from dispositions of real estate Proceeds from Sale, Real Estate, Held-for-Investment Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit (expense) Income Tax Expense (Benefit) Net income (loss) Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Award Timing Method Award Timing Method [Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] NET DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] 2028 Lessor, Operating Lease, Payment to be Received, Year Two Net income (loss) attributable to the AIR Operating Partnership Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Interest income Investment Income, Interest Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Number of geographic concentrations Number Of Geographic Concentrations Number Of Geographic Concentrations REVENUES Revenues [Abstract] Liability derivatives, fair value Fair Value Hedge Liabilities Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]