CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (accumulated Deficit) [Member]	Total Aimco Equity [Member]	Noncontrolling Interests in Consolidated Real Estate Partnerships [Member]	Common Noncontrolling Interests in Aimco Operating Partnership [Member]
Balances at Dec. 31, 2020	$ 559,091	$ 1,490	$ 515,127	$ (16,839)	$ 499,778	$ 31,877	$ 27,436
Balances (in shares) at Dec. 31, 2020		149,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Aimco	524			524	524
Net income (loss) attributable to noncontrolling interests in consolidated real estate partnerships	566					566
Net income (loss) attributable to common noncontrolling interests in Aimco Operating Partnership	44						44
Redemption of OP Units	(40)	$ 4	898		902		(942)
Redemption of OP Units, (In share)		440
Share-based compensation expense	867		751		751		116
Distribution to noncontrolling interest in consolidated real estate partnerships	(582)					(582)
Other common stock issuances	1,071	$ 2	1,069		1,071
Other Common Stock issuances (In share)		232
Other, net	(319)		(305)		(305)	(14)
Other, net (in shares)		(45)
Balances at Jun. 30, 2021	561,222	$ 1,496	517,540	(16,315)	502,721	31,847	26,654
Balances (in shares) at Jun. 30, 2021		149,663
Balances at Mar. 31, 2021	581,352	$ 1,491	516,051	3,375	520,917	31,884	28,551
Balances (in shares) at Mar. 31, 2021		149,208
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Aimco	(19,690)			(19,690)	(19,690)
Net income (loss) attributable to noncontrolling interests in consolidated real estate partnerships	275					275
Net income (loss) attributable to common noncontrolling interests in Aimco Operating Partnership	(1,037)						(1,037)
Redemption of OP Units	(4)	$ 4	909		913		(917)
Redemption of OP Units, (In share)		440
Share-based compensation expense	638		580		580		58
Distribution to noncontrolling interest in consolidated real estate partnerships	(295)					(295)
Other, net	(17)	$ 1			1	(17)	(1)
Other, net (in shares)		15
Balances at Jun. 30, 2021	561,222	$ 1,496	517,540	(16,315)	502,721	31,847	26,654
Balances (in shares) at Jun. 30, 2021		149,663
Balances at Dec. 31, 2021	562,233	$ 1,498	521,842	(22,775)	500,565	35,213	26,455
Balances (in shares) at Dec. 31, 2021		149,818
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Aimco	247,346			247,346	247,346
Net income (loss) attributable to noncontrolling interests in consolidated real estate partnerships	344					344
Net income (loss) attributable to common noncontrolling interests in Aimco Operating Partnership	13,094						13,094
Redemption of OP Units	(143)		1,535		1,535		(1,678)
Redemption of OP Units, (In share)		39
Share-based compensation expense	4,037		2,780		2,780		1,257
Distribution to noncontrolling interest in consolidated real estate partnerships	(605)					(605)
Contributions from noncontrolling interests in consolidated real estate partnerships	9,718					9,718
Purchase of noncontrolling interests in consolidated real estate partnerships	(7,244)		(7,244)		(7,244)
Common stock repurchased	(4,419)	$ (7)	(4,412)		(4,419)
Common stock repurchased (In shares)		(742)
Other common stock issuances	852	$ 1	851		852
Other Common Stock issuances (In share)		106
Redemption of redeemable noncontrolling interests in consolidated real estate partnerships	(183)		(183)		(183)
Other, net	(8)		(104)	(4)	(108)	(5)	105
Other, net (in shares)		(124)
Balances at Jun. 30, 2022	825,022	$ 1,492	515,065	224,567	741,124	44,665	39,233
Balances (in shares) at Jun. 30, 2022		149,097
Balances at Mar. 31, 2022	581,985	$ 1,497	523,455	(14,571)	510,381	44,629	26,975
Balances (in shares) at Mar. 31, 2022		149,690
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Aimco	239,137			239,137	239,137
Net income (loss) attributable to noncontrolling interests in consolidated real estate partnerships	346					346
Net income (loss) attributable to common noncontrolling interests in Aimco Operating Partnership	12,659						12,659
Redemption of OP Units	(10)		581		581		(591)
Redemption of OP Units, (In share)		16
Share-based compensation expense	1,608		1,417		1,417		191
Distribution to noncontrolling interest in consolidated real estate partnerships	(310)					(310)
Purchase of noncontrolling interests in consolidated real estate partnerships	(7,244)		(7,244)		(7,244)
Common stock repurchased	(3,102)	$ (5)	(3,097)		(3,102)
Common stock repurchased (In shares)		(540)
Other, net	(47)		(47)	1	(46)		(1)
Other, net (in shares)		(69)
Balances at Jun. 30, 2022	$ 825,022	$ 1,492	$ 515,065	$ 224,567	$ 741,124	$ 44,665	$ 39,233
Balances (in shares) at Jun. 30, 2022		149,097