AIR Equity (Details) - USD ($)		12 Months Ended
	Apr. 23, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 15, 2024
Class Of Stock [Line Items]
Repurchases of common stock		$ 124,361,000	$ 316,710,000	$ 0
Common stock, shares issued (in shares)		144,925,604	149,086,548
Common stock per share (in dollars per share)	$ 43.77
Cash proceeds, net of fees	$ 342,200,000	$ 0	$ 0	$ 342,470,000
Repayment of property debt	$ 318,400,000
Weighted-average interest rate	4.60%
Subsequent Event
Class Of Stock [Line Items]
Stock Repurchase Program, Additional Authorized Repurchase Amount					$ 500,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount					$ 34,300,000
AIMCO PROPERTIES, L.P.
Class Of Stock [Line Items]
Dividends per share (in dollars per share)		$ 1.80	$ 1.80	$ 1.74
Common Class A
Class Of Stock [Line Items]
Common stock, shares issued (in shares)	7,800,000
Preferred stock, dividend rate		8.50%
Board of Directors
Class Of Stock [Line Items]
Repurchase of common stock shares		4,300,000
Repurchases of common stock		$ 149,000,000
Common stock average price, (in dollars per share)		$ 34.48
Class A Cumulative Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares issued (in shares)		20	20
Preferred stock, shares outstanding (in shares)		20	20
Outstanding principal balance of shares issued and outstanding		$ 2,000,000	$ 2,000,000
Preferred stock, par or stated value per share (in dollars per share)		$ 0.01
Preferred stock, liquidation preference, value		$ 100,000