v3.26.1
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) - EBP 003 - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Total parties-in-interest investments $ 9,768,064 $ 7,590,203
Fidelity MIP Fund    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Total parties-in-interest investments [1] 8,768,016 6,774,241
Vanguard    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Total parties-in-interest investments [2] 894,421 692,344
Aimco Stock Fund    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Total parties-in-interest investments [3] $ 105,627 $ 123,618
[1] Certain Plan investments in mutual funds and a common collective trust are managed by Fidelity, who also acts as the trustee of the Plan.
[2] A portion of the Plan's assets is invested in funds managed by The Vanguard Group, Inc., which is a beneficial owner of Aimco common stock that held more than 10% of Aimco's common stock outstanding as of December 31, 2025.
[3] A portion of the Plan's assets is also invested in Aimco common stock and Aimco is the Plan Sponsor.