Condensed Consolidated Statements of Partners' Capital - USD ($) $ in Thousands	Total	Apartment Income REIT, L.P.	Apartment Income REIT, L.P. Preferred Units	Apartment Income REIT, L.P. General Partner and Special Limited Partner	Apartment Income REIT, L.P. Limited Partners	Apartment Income REIT, L.P. Partners' Capital Attributable to the AIR Operating Partnership	Apartment Income REIT, L.P. Noncontrolling Interests in Consolidated Real Estate Partnerships
Beginning balance 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]
Issuance of AIR Operating Partnership units		22,383			22,383	22,383
Redemption of common partnership units		(10,529)			(10,529)	(10,529)
Amortization of share-based compensation cost		3,126		1,971	1,155	3,126
Effect of changes in ownership of consolidated entities	$ 0			(6,102)	6,102	0	0
Contributions from noncontrolling interests in consolidated real estate partnerships	1,567	1,567					1,567
Change in accumulated other comprehensive income	(15,594)	(15,594)		(14,492)	(1,102)	(15,594)
Net (loss) income	(11,518)	(11,518)		(11,377)	(826)	(12,203)	685
Distributions to noncontrolling interests		(71,491)		(66,939)	(4,552)	(71,491)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(7,037)	(2,485)					(2,485)
Other, net		137		137	(1)	136	1
Ending balance at Mar. 31, 2023		2,234,902	2,000	2,057,615	254,304	2,313,919	(79,017)
Beginning balance at Dec. 31, 2023		2,550,374	2,000	2,349,896	284,451	2,636,347	(85,973)
Increase (Decrease) in Partners' Capital [Roll Forward]
Redemption of common partnership units		(3,793)			(3,793)	(3,793)
Amortization of share-based compensation cost		3,717		2,300	1,417	3,717
Effect of changes in ownership of consolidated entities	0			(1,839)	1,839	0	0
Change in accumulated other comprehensive income	(2,101)	(2,101)		(1,919)	(182)	(2,101)
Net (loss) income	(5,848)	(5,848)		(6,592)	(357)	(6,949)	1,101
Distributions to noncontrolling interests		(64,649)		(64,649)	0	(64,649)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ (9,071)	(9,071)			(4,676)	(4,676)	(4,395)
Other, net		46		40	0	40	6
Ending balance at Mar. 31, 2024		$ 2,468,675	$ 2,000	$ 2,277,237	$ 278,699	$ 2,557,936	$ (89,261)