75000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 75010 - Statement - Statements of Net Assets Available for Benefits link:presentationLink link:calculationLink link:definitionLink 75020 - Statement - Statement of Changes in Net Assets Available for Benefits link:presentationLink link:calculationLink link:definitionLink 75030 - Disclosure - Description of the Plan link:presentationLink link:calculationLink link:definitionLink 75040 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 75050 - Disclosure - Fair Value Measurements and Investments link:presentationLink link:calculationLink link:definitionLink 75060 - Disclosure - Risks and Uncertainties link:presentationLink link:calculationLink link:definitionLink 75070 - Disclosure - Income Tax Status link:presentationLink link:calculationLink link:definitionLink 75080 - Disclosure - Plan Termination link:presentationLink link:calculationLink link:definitionLink 75090 - Disclosure - Related Party and Party-In-Interest Transactions link:presentationLink link:calculationLink link:definitionLink 75100 - Disclosure - Reconciliation from Financial Statements to Form 5500 link:presentationLink link:calculationLink link:definitionLink 75110 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 75120 - Disclosure - Schedule of Assets Held at End of Year link:presentationLink link:calculationLink link:definitionLink 75130 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 75140 - Disclosure - Fair Value Measurements and Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 75150 - Disclosure - Related Party and Party-In-Interest Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 75160 - Disclosure - Reconciliation from Financial Statements to Form 5500 (Tables) link:presentationLink link:calculationLink link:definitionLink 75170 - Disclosure - Schedule of Assets Held at End of Year (Tables) link:presentationLink link:calculationLink link:definitionLink 75180 - Disclosure - Description of the Plan - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75190 - Disclosure - Fair Value Measurements and Investments - Schedule of Investments Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 75200 - Disclosure - Fair Value Measurements and Investments - Schedule of Investments Measured at Fair Value on a Recurring Basis (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 75210 - Disclosure - Income Tax Status - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 75220 - Disclosure - Related Party and Party-In-Interest Transactions - Summary of Employee Benefit Plan Party-in-Interest Transactions Are Exempt and Consist of Notes Receivable From Participants Investments (Details) link:presentationLink link:calculationLink link:definitionLink 75230 - Disclosure - Related Party and Party-In-Interest Transactions - Summary of Employee Benefit Plan Party-in-Interest Transactions Are Exempt and Consist of Notes Receivable From Participants Investments (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 75240 - Disclosure - Reconciliation from Financial Statements to Form 5500 - Reconciliation of Net Assets Available for Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 75250 - Disclosure - Reconciliation from Financial Statements to Form 5500 - Reconciliation of the Net Increase in Net Assets Available for Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 75260 - Disclosure - Schedule of Assets Held at End of Year (Details) link:presentationLink link:calculationLink link:definitionLink 75260 - Disclosure - Schedule of Assets Held at End of Year (Details) [Default] link:presentationLink link:calculationLink link:definitionLink EBP, Change in Net Asset Available for Benefit, Increase [Abstract] ADDITIONS EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefit payments Employee Benefit Plan, Risks And Uncertainties [Table] Employee benefit plan, risks and uncertainties. EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Value adjustment for the Fidelity MIP Fund at December 31, 2024 EBP, Related Party and Party-in-Interest Transactions [Line Items] Document Fiscal Period Focus Employer contributions receivable EBP, Employer Contribution, Receivable EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), after Investment Expense Total investment income EBP, Form 5500 Caption, Net Income (Loss) Net income, per Form 5500 EBP, Tax Status [Abstract] EBP, Forfeited Nonvested Account Employee benefit plan forfeited accounts Description of the Plan EBP, Description of Plan [Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest income on notes receivable from participants Investment, Identifier [Axis] EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses EBP, Description of Plan [Line Items] EBP, Employer Contribution, Matching Percentage Employee benefit plan company matching contribution EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Fair Value and NAV [Abstract] EBP, Related Party and Party-in-Interest Transactions [Table Text Block] Summary of Employee Benefit Plan Party-in-Interest Transactions Are Exempt and Consist of Notes Receivable From Participants Investments EBP, Accounting Policy [Line Items] EBP, Schedule of Asset Held for Investment [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Form 5500 Caption, Receivables, Employer Contributions Contributions receivable EBP 003. EBP 003 [Member] EBP 003 EBP, note receivable from participant, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Common Collective Trust [Member] Common Collective Trust Fund Amendment Flag EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash, Total Employer EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] DEDUCTIONS EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, note receivable from participant minimum borrowing, amount EBP, Payment to Participant [Policy Text Block] Payment of Benefits Employee Benefit Plan Employer Contribution Participant Compensation Matched Percentage Next Participant Contribution Employee benefit plan employer contribution participant compensation matched percentage next participant contribution. Employee benefit plan employer contribution participant compensation matched percentage next participant contribution EBP, Schedule of Asset Held for Investment [Line Items] Fair Value Hierarchy and NAV [Axis] EBP, Investment, Current Value, Type [Extensible Enumeration] Investment Type [Axis] Document Type Entity Central Index Key Employee Benefit Plan Schedule Of Asset Held For Investment [Text Block] Schedule of Assets Held at End of Year Employee benefit plan schedule of asset held for investment. EBP, Investment [Policy Text Block] Valuation of Investments Employee Benefit Plan Legal Recordkeeping Trustee Fees Planning Tools And Educational Materials Flat Fee Per Quarter Employee benefit plan legal recordkeeping trustee fees planning tools and educational materials flat fee per quarter. Employee benefit plan legal recordkeeping trustee fees planning tools and educational materials flat fee per quarter EBP, Subsequent Event [Table] EBP, Accounting Policy [Table] EBP, Subsequent Event [Abstract] EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Investment, Plan Interest in Master Trust, Fair Value Total parties-in-interest investments EBP, Description of Plan [Table] EBP, Employer, Common Stock [Member] Aimco Common Stock Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment, Total Employee Benefit Plan Forfeitures Used To Offset Employer Contributions Employee benefit plan forfeitures used to offset employer contributions. Employee benefit plan forfeitures used to offset employer contributions EBP, Form 5500 Caption, Net Assets Net assets, per Form 5500 EBP, Investment, Number of Shares Description of Investment Minimum [Member] Minimum EBP, Related Party and Party-in-Interest Transactions [Text Block] Related Party and Party-In-Interest Transactions Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total contributions EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Plan Expenses EBP, Expense [Policy Text Block] Fair Value Measured at Net Asset Value Per Share [Member] Measured at NAV EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participants Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Contributions EBP, tax determination letter, date EBP, Tax Determination Letter, Date EBP, Related Party and Party-in-Interest Transactions [Abstract] Employee Benefit Plan Participant Loan Repayment Period Employee benefit plan participant loan repayment period. Employee benefit plan participant loan repayment period EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Ending Balance EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Beginning Balance EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Total Investments, at fair value (Note 3) Total investments measured at fair value Employee Benefit Plan Plan Termination [Abstract] Employee benefit plan plan termination abstract.. EBP, Use of Estimate [Policy Text Block] Use of Estimates EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid Value adjustment for the Fidelity MIP Fund at December 31, 2025 Mutual Fund [Member] Mutual Funds Entity [Domain] Aimco Stock Fund Aimco Stock Fund [Member] Aimco Stock Fund. EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies Employee Benefit Plan Plan Termination [Table] Employee benefit plan plan termination table. Fair Value Measurements and Investments EBP, Investment, Fair Value and NAV [Text Block] EBP, Description of Plan and Accounting Change [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Reconciliation of Net Assets Available and Net Increase in Net Assets Availabl EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statistical Measurement [Domain] EBP, Excess Contribution Payable [Policy Text Block] Excess Contributions Payable EBP, Note Receivable from Participant Notes receivable from participants Document Period End Date Fair Value Hierarchy and NAV [Domain] EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, note receivable from participant maximum borrowing to total account percentage EBP, tax determination letter, obtained [true false] EBP, Tax Determination Letter, Obtained [true false] EBP, Related Party and Party-in-Interest Transactions [Table] Plan Termination EBP, Plan Termination [Text Block] EBP, Subsequent Event [Text Block] Subsequent Events Employee Benefit Plan Participant Additional Catch Up Contribution Maximum Annual Compensation Amount Employee benefit plan participant additional catch up contribution maximum annual compensation amount. Employee benefit plan, participant additional catch-up contribution, maximum annual compensation amount Employee benefit plan risks and uncertainties. Employee Benefit Plan Risks and Uncertainties [Abstract] Employee Benefit Plan Loan Term Extended Term Employee benefit plan loan term extended term. EBP, Participant Contribution, Pretax, Maximum Annual Compensation, Amount Employee benefit plan, participant contribution, maximum annual compensation amount Cover [Abstract] Interest-Bearing Deposits [Member] Interest-Bearing Cash Held by Aimco Stock Fund Vanguard [Member] Vanguard. Vanguard Investments [Domain] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Unrealized Gain (Loss) on Investment Net appreciation in fair value of investments EBP, Net Asset Available for Benefit Assets available for benefits Net assets available for benefits at the beginning of the year Net assets available for benefits at the end of the year Net assets available for benefits per the financial statements EBP, Investment, Fair Value and NAV [Table Text Block] Schedule of Investments Measured at Fair Value on a Recurring Basis Employee benefit plan company deferred matching contribution Employee Benefit Plan Employer Contribution Deferred Matching Percentage Employee benefit plan employer contribution deferred matching Percentage. Aimco Common Stock [Member] Aimco common stock. Aimco Common Stock Employee Benefit Plan Annual Maintenance Fee For Each Loan Employee benefit plan annual maintenance fee for each loan. Employee benefit plan annual maintenance fee for each loan EBP, Schedule of Asset Held for Investment [Abstract] Employee Benefit Plan Plan Termination [Line Items] Employee benefit plan plan termination. Employee Benefit Plan Discretionary Contributions Employee benefit plan discretionary contributions. Employee benefit plan discretionary contributions EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants Employee Benefit Plan Investment Transactions and Net Investment Income Recognition [Policy Text Block] Investment Transactions and Net Investment Income Recognition Employee benefit plan investment transactions and net investment income recognition. EBP, Schedule of Asset Held for Investment [Table Text Block] Schedule of Assets Held at End of Year EBP, Statement of Net Asset Available for Benefit [Table] Document Fiscal Year Focus EBP, Employer Contribution, Participant Compensation Matched, Percentage Employee benefit plan employer contribution participant compensation matched percentage on first contribution EBP, Statement of Change in Net Asset Available for Benefit [Table] Change in contributions receivable EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Increase (Decrease) from Contract Value to Current Value EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contract Value to Current Value Adjustment Value adjustment for the Fidelity MIP Fund EBP, Plan Number Employee Benefit Plan, Risks And Uncertainties [Line Items] Employee benefit plan, risks and uncertainties. EBP, Investment, Fair Value and NAV [Line Items] Legal Entity [Axis] ASSETS EBP, Asset [Abstract] EBP, Investment, Fair Value and NAV [Table] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Rollovers Fidelity [Member] Fidelity. Fidelity MIP Fund EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Asset Held for Investment Asset held for investment EBP, Subsequent Event [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Employee benefit plan loan processing flat fee Employee Benefit Plan Loan Processing Flat Fee Employee benefit plan loan processing flat fee. Income Tax Status EBP, Tax Status [Text Block] Maximum [Member] Maximum Statistical Measurement [Axis] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Entity Registrant Name Employee Benefit Plan Employee Contribution Receivable Employee benefit plan employee contribution receivable. Employee contributions receivable Participant loans interest EBP, Asset Held for Investment, Participant Loan, Interest Rate Employee benefit plan, asset held for investment, participant loan, interest rate EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Reconciliation from Financial Statements to Form 5500 Employee Benefit Plan Notes Receivables From Participants Maturity Date Employee Benefit Plan Notes Receivables From Participants Maturity Date Employee benefit plan notes receivables from participants maturity date EBP, Investment, Employer, Common Stock, to Total Asset, Percentage Percentage of plan assets invested in funds EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Axis] EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Employee Benefit Plan Participant Contribution Pretax Maximum Annual Contribution To Eligible Compensation Percentage Employee benefit plan, participant contribution, pretax, maximum annual contribution to eligible compensation, percentage. Employee benefit plan, pretax maximum annual contribution to eligible compensation, percentage EBP, Risk and Uncertainty [Text Block] Risks and Uncertainties EBP, Change in Net Asset Available for Benefit, Decrease Total deductions Fair Value, Inputs, Level 1 [Member] Level 1 EBP, Tax Status [Line Items] Entity Tax Identification Number EBP, Asset Held for Investment, Participant Loan, Maturity Date Participant loan, maturity date EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Net increase in net assets available for benefits Net increase in net assets available for benefits per the financial statements EBP, Tax Status [Table] Vanguard Group Inc. [Member] Vanguard Group Inc. [Member] Vanguard Group, Inc EBP, Asset Held for Investment, Party-in-Interest [true false] Fidelity 500 Index Fund. Fidelity Freedom 2045 Fund [Member] Vanguard Explorer Fund. Fidelity Freedom 2020 Fund [Member] Fidelity Freedom 2040 Fund [Member] Fidelity U.S. Bond Index Fund [Member] American Funds EuroPacific Growth Fund. H&W High Yield Fund. Employer Securities [Member] Fidelity Real Estate Fund. Fidelity Total International Index Fund. Dodge and Cox Income Fund [Member] American Beacon Small Cap Value Fund [Member] Fidelity Freedom Retirement Fund [Member] Vanguard Total International Bond Index Fund [Member] Dodge and Cox Stock Fund [Member] Employer Securities. Fidelity Total International Index Fund [Member] Fidelity 500 Index Fund [Member] Pacific Investment Management Company Real Return Fund. Fidelity Freedom 2035 Fund [Member] Fidelity Freedom 2015 Fund [Member] American Beacon Small Cap Value Fund. Fidelity Freedom 2035 Fund. Fidelity U.S. Bond Index Fund. Fidelity Freedom 2065 Fund. Fidelity Freedom 2030 Fund [Member] Fidelity Growth Company Fund. Fidelity Low Priced Stock Fund. Fidelity Freedom 2060 Fund. Dodge and Cox Stock Fund. Fidelity Managed Income Portfolio II Fund [Member] Dodge and Cox Income Fund. Fidelity Real Estate Fund [Member] Fidelity Extended Market Index Fund. Fidelity Freedom 2030 Fund. Fidelity Growth Company Fund [Member] Fidelity Freedom 2020 Fund. Vanguard Treasury Money Market. Vanguard Total International Bond Index Fund. Interest bearing cash account [Member] Fidelity Freedom Retirement Fund. Fidelity Freedom 2060 Fund [Member] H&W High Yield Fund [Member] American Funds EuroPacific Growth Fund [Member] Fidelity Freedom 2055 Fund. Fidelity Extended Market Index Fund [Member] Vanguard Explorer Fund [Member] Fidelity Freedom 2010 Fund. Fidelity Freedom 2055 Fund [Member] Fidelity Freedom 2015 Fund. Vanguard Treasury Money Market [Member] Fidelity Freedom 2010 Fund [Member] Fidelity Managed Income Portfolio II Fund. Fidelity Freedom 2040 Fund. Pacific Investment Management Company Real Return Fund [Member] Fidelity Low Priced Stock Fund [Member] Interest bearing cash account. Fidelity Freedom 2065 Fund [Member] Fidelity Freedom 2045 Fund.