Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
REVENUES
Total revenues	$ 200,871	$ 191,777	$ 565,849	$ 546,523
EXPENSES
Property operating expenses	71,250	73,925	198,273	203,300
Depreciation and amortization	90,445	81,121	253,650	232,192
General and administrative expenses	7,663	5,875	19,593	15,510
Other expenses, net	4,941	3,816	5,883	9,207
Total operating expenses	174,299	164,737	477,399	460,209
Interest income	9,613	13,432	48,746	45,088
Interest expense	(32,656)	(30,530)	(80,790)	(100,212)
Loss on extinguishment of debt	0	(6,673)	(23,636)	(44,833)
Gain on dispositions of real estate and derecognition of leased properties	0	7,127	587,609	94,512
Loss from unconsolidated real estate partnerships	(87)	0	(2,974)	0
Income before income tax (expense) benefit	3,442	10,396	617,405	80,869
Income tax (expense) benefit			(966)	(770)
Net income	3,396	10,671	616,439	80,099
Noncontrolling interests:
Net loss attributable to noncontrolling interests in consolidated real estate partnerships	102	785	285	3,417
Net income attributable to preferred noncontrolling interests in AIR Operating Partnership	(1,602)	(1,603)	(4,807)	(4,810)
Net income attributable to common noncontrolling interests in AIR Operating Partnership	(137)	(475)	(37,053)	(3,966)
Net income attributable to noncontrolling interests	(1,637)	(1,293)	(41,575)	(5,359)
Net income attributable to AIR	1,759	9,378	574,864	74,740
Net income attributable to AIR preferred stockholders	(43)	(43)	(128)	(136)
Net (income) loss attributable to participating securities	44	(46)	(373)	(149)
Net income attributable to AIR common stockholders	$ 1,760	$ 9,289	$ 574,363	$ 74,455
Earnings (loss) per common share - diluted
Net income attributable to AIR common stockholders per share - basic	$ 0.01	$ 0.06	$ 3.69	$ 0.49
Net income attributable to AIR common stockholders per share - diluted	$ 0.01	$ 0.06	$ 3.68	$ 0.48
Weighted average common shares/units outstanding - basic	153,811	156,646	155,488	153,289
Weighted average common shares/units outstanding - diluted	154,057	157,042	157,440	153,650
Continuing Operations [Member]
EXPENSES
Income tax (expense) benefit	$ (46)	$ 275	$ (966)	$ (770)
Rental And Other Property Revenues [Member]
REVENUES
Total revenues	198,413	190,082	558,686	541,533
Other Revenues [Member]
REVENUES
Total revenues	2,458	1,695	7,163	4,990
Apartment Income REIT, L.P. [Member]
REVENUES
Total revenues	200,871	191,777	565,849	546,523
EXPENSES
Property operating expenses	71,250	73,925	198,273	203,300
Depreciation and amortization	90,445	81,121	253,650	232,192
General and administrative expenses	7,663	5,875	19,593	15,510
Other expenses, net	4,941	3,816	5,883	9,207
Total operating expenses	174,299	164,737	477,399	460,209
Interest income	9,613	13,432	48,746	45,088
Interest expense	(32,656)	(30,530)	(80,790)	(100,212)
Loss on extinguishment of debt	0	(6,673)	(23,636)	(44,833)
Gain on dispositions of real estate and derecognition of leased properties	0	7,127	587,609	94,512
Loss from unconsolidated real estate partnerships	(87)	0	(2,974)	0
Income before income tax (expense) benefit	3,442	10,396	617,405	80,869
Income tax (expense) benefit			(966)	(770)
Net income	3,396	10,671	616,439	80,099
Noncontrolling interests:
Net loss attributable to noncontrolling interests in consolidated real estate partnerships	102	785	285	3,417
Net income attributable to preferred noncontrolling interests in AIR Operating Partnership	(1,645)	(1,646)	(4,935)	(4,946)
Net income attributable to AIR	3,498	11,456	616,724	83,516
Net (income) loss attributable to participating securities	44	(46)	(373)	(149)
Net income attributable to AIR common stockholders	$ 1,897	$ 9,764	$ 611,416	$ 78,421
Earnings (loss) per common share - diluted
Net income attributable to AIR common stockholders per share - basic	$ 0.01	$ 0.06	$ 3.69	$ 0.49
Net income attributable to AIR common stockholders per share - diluted	$ 0.01	$ 0.06	$ 3.68	$ 0.48
Weighted average common shares/units outstanding - basic	163,866	164,603	165,578	161,336
Weighted average common shares/units outstanding - diluted	164,112	164,999	167,529	161,697
Apartment Income REIT, L.P. [Member] | Continuing Operations [Member]
EXPENSES
Income tax (expense) benefit	$ (46)	$ 275	$ (966)	$ (770)
Apartment Income REIT, L.P. [Member] | Rental And Other Property Revenues [Member]
REVENUES
Total revenues	198,413	190,082	558,686	541,533
Apartment Income REIT, L.P. [Member] | Other Revenues [Member]
REVENUES
Total revenues	$ 2,458	$ 1,695	$ 7,163	$ 4,990