Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
REVENUES
Total revenues	$ 197,307	$ 200,871	$ 623,677	$ 565,849
EXPENSES
Property operating expenses	58,076	64,009	190,122	176,679
Property management expenses	7,899	7,241	23,318	21,594
Depreciation and amortization	79,023	90,445	263,949	253,650
General and administrative expenses	5,663	7,663	18,866	19,593
Other expenses, net	8,110	4,941	14,434	5,883
Total operating expenses	158,771	174,299	510,689	477,399
Interest income	2,918	9,613	6,133	48,746
Interest expense	(22,888)	(32,656)	(96,629)	(80,790)
Loss on extinguishment of debt	0	0	(2,008)	(23,636)
Gain on dispositions and impairments of real estate	692,861	0	675,534	587,609
Gain on derivative instruments, net	14,070	0	23,322	0
Loss from unconsolidated real estate partnerships	(10,390)	(87)	(12,267)	(2,974)
Income before income tax expense	715,107	3,442	707,073	617,405
Income tax expense	(4,595)	(46)	(5,911)	(966)
Net income	710,512	3,396	701,162	616,439
Noncontrolling interests:
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(2,525)	102	(3,894)	285
Net income attributable to the AIR Operating Partnership	(1,570)	(1,602)	(4,710)	(4,807)
Net income attributable to common noncontrolling interests in AIR Operating Partnership	(42,386)	(137)	(41,245)	(37,053)
Net income attributable to noncontrolling interests	(46,481)	(1,637)	(49,849)	(41,575)
Loss from unconsolidated real estate partnerships	664,031	1,759	651,313	574,864
Net income attributable to AIR preferred stockholders	(44)	(43)	(129)	(128)
Net (income) loss attributable to participating securities	(391)	44	(484)	(373)
Net income attributable to AIR common stockholders	$ 663,596	$ 1,760	$ 650,700	$ 574,363
Net income attributable to AIR common stockholders per share - basic (in dollars per share)	$ 4.50	$ 0.01	$ 4.39	$ 3.69
Net income attributable to AIR common stockholders per share - diluted (in dollars per share)	$ 4.43	$ 0.01	$ 4.35	$ 3.68
Weighted average common shares/units outstanding - basic (in shares)	147,474	153,811	148,372	155,488
Weighted average common shares/units outstanding - diluted	150,045	154,057	150,692	157,440
Rental and other property revenues
REVENUES
Total revenues	$ 194,244	$ 198,413	$ 616,659	$ 558,686
Other revenues
REVENUES
Total revenues	3,063	2,458	7,018	7,163
Apartment Income REIT, L.P.
REVENUES
Total revenues	197,307	200,871	623,677	565,849
EXPENSES
Property operating expenses	58,076	64,009	190,122	176,679
Property management expenses	7,899	7,241	23,318	21,594
Depreciation and amortization	79,023	90,445	263,949	253,650
General and administrative expenses	5,663	7,663	18,866	19,593
Other expenses, net	8,110	4,941	14,434	5,883
Total operating expenses	158,771	174,299	510,689	477,399
Interest income	2,918	9,613	6,133	48,746
Interest expense	(22,888)	(32,656)	(96,629)	(80,790)
Loss on extinguishment of debt	0	0	(2,008)	(23,636)
Gain on dispositions and impairments of real estate	692,861	0	675,534	587,609
Gain on derivative instruments, net	14,070	0	23,322	0
Loss from unconsolidated real estate partnerships	(10,390)	(87)	(12,267)	(2,974)
Income before income tax expense	715,107	3,442	707,073	617,405
Income tax expense	(4,595)	(46)	(5,911)	(966)
Net income	710,512	3,396	701,162	616,439
Noncontrolling interests:
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(2,525)	102	(3,894)	285
Loss from unconsolidated real estate partnerships	707,987	3,498	697,268	616,724
Net income attributable to AIR preferred stockholders	(1,614)	(1,645)	(4,839)	(4,935)
Net (income) loss attributable to participating securities	(391)	44	(484)	(373)
Net income attributable to AIR common stockholders	$ 705,982	$ 1,897	$ 691,945	$ 611,416
Net income attributable to AIR common stockholders per share - basic (in dollars per share)	$ 4.49	$ 0.01	$ 4.38	$ 3.69
Net income attributable to AIR common stockholders per share - diluted (in dollars per share)	$ 4.42	$ 0.01	$ 4.34	$ 3.68
Weighted average common shares/units outstanding - basic (in shares)	157,366	163,866	158,138	165,578
Weighted average common shares/units outstanding - diluted	159,937	164,112	160,458	167,529
Apartment Income REIT, L.P. | Rental and other property revenues
REVENUES
Total revenues	$ 194,244	$ 198,413	$ 616,659	$ 558,686
Apartment Income REIT, L.P. | Other revenues
REVENUES
Total revenues	$ 3,063	$ 2,458	$ 7,018	$ 7,163