CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
REVENUES
Rental and other property revenues	$ 44,268	$ 49,994
OPERATING EXPENSES
Property operating expenses	17,504	19,221
Depreciation and amortization	16,271	23,118
General and administrative expenses	8,403	9,472
Total operating expenses	42,178	51,811
Interest income	2,058	555
Interest expense	(9,725)	(14,601)
Realized and unrealized gains (losses) on interest rate options	(1,057)	18,778
Realized and unrealized gains (losses) on equity investments	137	(4,332)
Other income (expense), net	(3,498)	(1,020)
Income (loss) before income tax	(9,949)	6,056
Income tax benefit (expense)	4,196	4,056
Net income (loss)	(5,753)	10,112
Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships	(3,274)	(1,470)
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(264)	2
Net income (loss) attributable to common noncontrolling interests in Aimco Operating Partnership	474	(435)
Net income (loss) attributable to Aimco	$ (8,817)	$ 8,209
Net income (loss) attributable to Aimco per common share -basic (Note 4)	$ (0.06)	$ 0.05
Net income (loss) attributable to Aimco per common share - diluted (Note 4)	$ (0.06)	$ 0.05
Weighted-average common shares/units outstanding - basic	145,827	149,790
Weighted-average common shares/units outstanding - diluted	145,827	150,348
Aimco OP L.P. [Member]
REVENUES
Rental and other property revenues	$ 44,268	$ 49,994
OPERATING EXPENSES
Property operating expenses	17,504	19,221
Depreciation and amortization	16,271	23,118
General and administrative expenses	8,403	9,472
Total operating expenses	42,178	51,811
Interest income	2,058	555
Interest expense	(9,725)	(14,601)
Realized and unrealized gains (losses) on interest rate options	(1,057)	18,778
Realized and unrealized gains (losses) on equity investments	137	(4,332)
Other income (expense), net	(3,498)	(1,020)
Income (loss) before income tax	(9,949)	6,056
Income tax benefit (expense)	4,196	4,056
Net income (loss)	(5,753)	10,112
Net (income) loss attributable to redeemable noncontrolling interests in consolidated real estate partnerships	(3,274)	(1,470)
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(264)	2
Net income (loss) attributable to Aimco	$ (9,291)	$ 8,644
Net income (loss) attributable to Aimco per common share -basic (Note 4)	$ (0.06)	$ 0.05
Net income (loss) attributable to Aimco per common share - diluted (Note 4)	$ (0.06)	$ 0.05
Weighted-average common shares/units outstanding - basic	153,631	157,718
Weighted-average common shares/units outstanding - diluted	153,631	158,485
Unconsolidated Real Estate Partnerships Member
OPERATING EXPENSES
Mezzanine / Unconsolidated partnerships investment income (loss), net	$ 174	$ 256
Unconsolidated Real Estate Partnerships Member | Aimco OP L.P. [Member]
OPERATING EXPENSES
Mezzanine / Unconsolidated partnerships investment income (loss), net	174	256
Mezzanine Investment [Member]
OPERATING EXPENSES
Mezzanine / Unconsolidated partnerships investment income (loss), net	(128)	8,237
Mezzanine Investment [Member] | Aimco OP L.P. [Member]
OPERATING EXPENSES
Mezzanine / Unconsolidated partnerships investment income (loss), net	$ (128)	$ 8,237