Consolidated Statements of Operations OP - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
REVENUES
Total revenues	$ 820,036	$ 773,723	$ 740,853
EXPENSES
Property operating expenses	244,095	231,791	235,832
Property management expenses	31,737	29,473	32,269
Depreciation and amortization	342,593	350,945	319,742
General and administrative expenses	25,494	24,939	18,585
Other expenses, net	25,889	9,073	27,220
Total operating expenses	669,808	646,221	633,648
Interest income	8,314	50,264	58,651
Interest expense	(129,654)	(116,459)	(129,467)
Loss on extinguishment of debt	(2,008)	(23,636)	(156,707)
Gain on dispositions of real estate, impairments of real estate, and derecognition of leased properties	677,740	939,806	594,861
Gain on derivative instruments, net	16,742	0	0
Loss from unconsolidated real estate partnerships	(29,648)	(3,504)	(565)
Income before income tax expense	691,714	973,973	473,978
Income tax expense (benefit)	(2,427)	(3,923)	5,246
Net income	689,287	970,050	479,224
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(5,185)	(458)	3,243
Net income attributable to AIR	635,101	904,432	447,621
Net income attributable to AIR preferred stockholders	(172)	(172)	(181)
Net income attributable to participating securities	(485)	(618)	(316)
Net income attributable to AIR common stockholders	$ 634,444	$ 903,642	$ 447,124
Net income attributable to AIR common stockholders per share - basic (in dollars per share)	$ 4.29	$ 5.86	$ 2.90
Net income attributable to AIR common stockholders per share - diluted (in dollars per share)	$ 4.27	$ 5.81	$ 2.89
Weighted average common shares/units outstanding - basic (in shares)	147,899	154,093	154,135
Weighted average common shares/units outstanding - diluted (in shares)	150,220	156,587	154,503
Rental and other property revenues
REVENUES
Total revenues	$ 809,875	$ 764,192	$ 733,483
Other revenues
REVENUES
Total revenues	10,161	9,531	7,370
Apartment Income REIT, L.P
REVENUES
Total revenues	820,036	773,723	740,853
EXPENSES
Property operating expenses	244,095	231,791	235,832
Property management expenses	31,737	29,473	32,269
Depreciation and amortization	342,593	350,945	319,742
General and administrative expenses	25,494	24,939	18,585
Other expenses, net	25,889	9,073	27,220
Total operating expenses	669,808	646,221	633,648
Interest income	8,314	50,264	58,651
Interest expense	(129,654)	(116,459)	(129,467)
Loss on extinguishment of debt	(2,008)	(23,636)	(156,707)
Gain on dispositions of real estate, impairments of real estate, and derecognition of leased properties	677,740	939,806	594,861
Gain on derivative instruments, net	16,742	0	0
Loss from unconsolidated real estate partnerships	(29,648)	(3,504)	(565)
Income before income tax expense	691,714	973,973	473,978
Income tax expense (benefit)	(2,427)	(3,923)	5,246
Net income	689,287	970,050	479,224
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships	(5,185)	(458)	3,243
Net income attributable to AIR	684,102	969,592	482,467
Net income attributable to AIR preferred stockholders	(6,452)	(6,560)	(6,594)
Net income attributable to participating securities	(485)	(618)	(316)
Net income attributable to AIR common stockholders	$ 677,165	$ 962,414	$ 475,557
Net income attributable to AIR common stockholders per share - basic (in dollars per share)	$ 4.29	$ 5.86	$ 2.92
Net income attributable to AIR common stockholders per share - diluted (in dollars per share)	$ 4.27	$ 5.81	$ 2.92
Weighted average common shares/units outstanding - basic (in shares)	157,687	164,141	162,739
Weighted average common shares/units outstanding - diluted (in shares)	160,008	166,635	163,108
Apartment Income REIT, L.P | Rental and other property revenues
REVENUES
Total revenues	$ 809,875	$ 764,192	$ 733,483
Apartment Income REIT, L.P | Other revenues
REVENUES
Total revenues	$ 10,161	$ 9,531	$ 7,370