Consolidated Statements of Partners' Capital - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Apartment Income REIT, L.P [Member]	Apartment Income REIT, L.P [Member] Preferred Units [Member]	Apartment Income REIT, L.P [Member] General Partner and Special Limited Partner [Member]	Apartment Income REIT, L.P [Member] Limited Partners [Member]	Apartment Income REIT, L.P [Member] Partners Capital Attributable to the Partnership [Member]	Apartment Income REIT, L.P [Member] Noncontrolling Interests In Consolidated Real Estate Partnerships [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of a change in accounting principle	$ 1,860,795
Balances at Dec. 31, 2019			$ 1,860,795		$ 1,780,649	$ 83,442	$ 1,864,091	$ (3,296)
Increase (Decrease) in Partners' Capital [Roll Forward]
Repurchases of common partnership units			(10,004)		(10,004)		(10,004)
Proceeds from the issuance of Common Stock
Issuance of Preferred Stock	2,000		2,000	$ 2,000			2,000
Issuance costs			(305)		(305)		(305)
Redemption of common partnership units			(2,642)			(2,642)	(2,642)
Conversion of common partnership units					5,139	(5,139)
Amortization of share-based compensation cost			9,241		4,900	4,341	9,241
Effect of changes in ownership for consolidated entities			438,470		494,589	5,201	499,790	(61,320)
Contributions from noncontrolling interests in consolidated real estate partnerships	4,701		4,701					4,701
Cumulative effect of a change in accounting principle			(277)		(277)		(277)
Change in other comprehensive loss	(1,236)		(1,236)		(1,156)	(80)	(1,236)
Net income (loss)	(109,944)		(109,944)		(104,127)	(5,438)	(109,565)	(379)
Distributions to common unitholders			(304,992)		(304,992)		(304,992)
Distributions to Aimco for the business separation			(559,856)		(559,753)		(559,753)	(103)
Distributions to noncontrolling interests	(18,182)		(18,182)			(16,500)	(16,500)	(1,682)
Repurchase of common partnership units	(10,004)		(10,004)
Other, net			324		188		188	136
Balances at Dec. 31, 2020			1,308,093	2,000	1,304,851	63,185	1,370,036	(61,943)
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of a change in accounting principle	1,308,093	$ (277)
Proceeds from the issuance of Common Stock	342,470		342,470		342,470		342,470
Issuance of common partnership units			121,557			121,557	121,557
Issuance of Preferred Stock	342,470		129	129			129
Issuance costs			(486)		(486)		(486)
Redemption of common partnership units			(17,827)			(17,827)	(17,827)
Conversion of common partnership units					8,333	(8,333)
Amortization of share-based compensation cost			7,655		3,771	3,884	7,655
Effect of changes in ownership for consolidated entities					(21,312)	21,312
Contributions from noncontrolling interests in consolidated real estate partnerships	7,458		7,458					7,458
Change in other comprehensive loss	(3,251)		(3,251)		(3,039)	(212)	(3,251)
Net income (loss)	472,811		472,811		447,621	28,433	476,054	(3,243)
Distributions to common unitholders			(269,385)		(269,385)		(269,385)
Distributions to preferred unitholders			(179)		(179)		(179)
Distributions to noncontrolling interests	(28,129)		(28,129)			(15,216)	(15,216)	(12,913)
Repurchase of common partnership units	0
Other, net			(1,761)		(1,749)	230	(1,519)	(242)
Balances at Dec. 31, 2021			1,939,155	2,129	1,810,896	197,013	2,010,038	(70,883)
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of a change in accounting principle	1,939,155
Proceeds from the issuance of Common Stock
Redemption of common partnership units			(11,174)			(11,174)	(11,174)
Conversion of common partnership units					119	(119)
Amortization of share-based compensation cost			7,966		4,270	3,696	7,966
Effect of changes in ownership for consolidated entities					7,791	(7,791)
Purchase of noncontrolling interest in consolidated real estate partnerships			(5,409)		(5,529)		(5,529)	120
Contributions from noncontrolling interests in consolidated real estate partnerships	9,206		9,206					9,206
Change in other comprehensive loss	47,322		47,322		43,562	3,760	47,322
Net income (loss)	963,662		963,662		904,432	58,772	963,204	458
Distributions to common unitholders			(295,460)		(277,639)	(17,821)	(295,460)
Distributions to noncontrolling interests			(17,623)					(17,623)
Repurchase of common partnership units	(316,710)		(316,710)		(316,710)		(316,710)
Other, net			(1,629)	(129)	(1,193)	(244)	(1,566)	(63)
Balances at Dec. 31, 2022			$ 2,319,306	$ 2,000	$ 2,154,417	$ 241,674	$ 2,398,091	$ 78,785
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of a change in accounting principle	$ 2,319,306