CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES:
Rental and other property revenues	$ 190,344	$ 169,836	$ 151,451
OPERATING EXPENSES:
Property operating expenses	71,792	67,613	61,514
Depreciation and amortization	158,967	84,712	77,965
Impairment			15,860
General and administrative expenses	39,673	33,151	10,469
Total operating expenses	270,432	185,476	165,808
Interest income	4,052	2,277	110
Interest expense	(73,842)	(52,902)	(27,512)
Realized and unrealized gains (losses) on interest rate options	48,205	6,509	1,058
Realized and unrealized gains (losses) on equity investments	20,302	6,585
Gain on dispositions of real estate	175,863
Lease modification income	206,963
Other income (expenses), net	(13,373)	3,212	(3,603)
Income (loss) before income tax	109,422	(18,550)	(15,920)
Income tax benefit (expense)	(17,264)	13,570	10,149
Net income (loss)	92,158	(4,980)	(5,771)
Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships	(8,829)	(91)	457
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(3,672)	(1,136)	4
Net loss (income) attributable to common noncontrolling interests in Aimco Operating Partnership	(3,931)	297	269
Net (loss) income attributable to Aimco	$ 75,726	$ (5,910)	$ (5,041)
Net income (loss) attributable to Aimco Operating Partnership per common unit - basic (Note 6)	$ 0.50	$ (0.04)	$ (0.03)
Net income (loss) attributable to Aimco Operating Partnership per common unit - diluted (Note 6)	$ 0.49	$ (0.04)	$ (0.03)
Weighted-average common shares/units outstanding - basic	149,395	149,480	148,569
Weighted-average common shares/units outstanding - diluted	150,834	149,480	148,569
Aimco OP L.P. [Member]
REVENUES:
Rental and other property revenues	$ 190,344	$ 169,836	$ 151,451
OPERATING EXPENSES:
Property operating expenses	71,792	67,613	61,514
Depreciation and amortization	158,967	84,712	77,965
Impairment			15,860
General and administrative expenses	39,673	33,151	10,469
Total operating expenses	270,432	185,476	165,808
Interest income	4,052	2,277	110
Interest expense	(73,842)	(52,902)	(27,512)
Realized and unrealized gains (losses) on interest rate options	48,205	6,509	1,058
Realized and unrealized gains (losses) on equity investments	20,302	6,585
Gain on dispositions of real estate	175,863
Lease modification income	206,963
Other income (expenses), net	(13,373)	3,212	(3,603)
Income (loss) before income tax	109,422	(18,550)	(15,920)
Income tax benefit (expense)	(17,264)	13,570	10,149
Net income (loss)	92,158	(4,980)	(5,771)
Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships	(8,829)	(91)	457
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(3,672)	(1,136)	4
Net (loss) income attributable to Aimco	$ 79,657	$ (6,207)	$ (5,310)
Net income (loss) attributable to Aimco Operating Partnership per common unit - basic (Note 6)	$ 0.50	$ (0.04)	$ (0.03)
Net income (loss) attributable to Aimco Operating Partnership per common unit - diluted (Note 6)	$ 0.49	$ (0.04)	$ (0.03)
Weighted-average common shares/units outstanding - basic	157,317	157,701	156,500
Weighted-average common shares/units outstanding - diluted	158,774	157,701	156,500
Mezzanine Investment [Member]
OPERATING EXPENSES:
Mezzanine / Unconsolidated partnerships investment income (loss), net	$ (179,239)	$ 30,436	$ 27,576
Mezzanine Investment [Member] | Aimco OP L.P. [Member]
OPERATING EXPENSES:
Mezzanine / Unconsolidated partnerships investment income (loss), net	(179,239)	30,436	27,576
Unconsolidated Real Estate Partnerships [Member]
OPERATING EXPENSES:
Mezzanine / Unconsolidated partnerships investment income (loss), net	579	973	808
Unconsolidated Real Estate Partnerships [Member] | Aimco OP L.P. [Member]
OPERATING EXPENSES:
Mezzanine / Unconsolidated partnerships investment income (loss), net	$ 579	$ 973	$ 808