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Assets Held for Sale and Discontinued Operations - Summary of Income from Operations and Related Gain on Disposition of Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
REVENUES
Rental and other property revenues	$ 15,178	$ 17,830	$ 51,573	$ 52,871
Property operating expenses	5,348	5,679	17,306	17,482
Depreciation and amortization	712	2,169	4,795	7,209
Total operating expenses	6,060	7,848	22,101	24,691
Interest income	2	8	2	20
Interest expense	(3,754)	(2,708)	(8,999)	(8,025)
Gain on dispositions of real estate	377,117		377,117
Income (loss) from discontinued operations before income tax	382,483	7,282	397,592	20,175
Income tax benefit (expense)	(177)		(177)
Income (loss) from discontinued operations, net of taxes	382,306	7,282	397,415	20,175
Income (loss) from discontinued operations attributable to Aimco common stockholders	366,222	6,899	380,544	19,124
Aimco OP L.P. [Member]
REVENUES
Depreciation and amortization			4,795	7,209
Gain on dispositions of real estate			377,117
Income tax benefit (expense)			(177)
(Income) loss from discontinued operations attributable to common noncontrolling interests in Aimco Operating Partnership	(16,084)	(383)	(16,871)	(1,051)
Income (loss) from discontinued operations attributable to Aimco common stockholders	$ 382,306	$ 7,282	$ 397,415	$ 20,175

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