Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (9,948)	$ 401,384
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	95,666	84,549
Loss on extinguishment of debt	(2,008)	(23,636)
Gain on dispositions of real estate	0	(412,003)
Income tax expense (benefit)	139	(579)
Other, net	5,955	5,485
Net changes in operating assets and operating liabilities	(4,926)	(29,765)
Net cash provided by operating activities	88,894	72,707
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of real estate	(180,673)	0
Capital expenditures	(34,278)	(37,302)
Proceeds from dispositions of real asset	0	559,093
Other investing activities, net	23,689	(8,532)
Net cash (used in) provided by investing activities	(191,262)	513,259
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from non-recourse property debt	320,000	0
Principal repayments on non-recourse property debt	(96,294)	(346,298)
Borrowings on revolving credit facility	0	159,000
Repayments of revolving credit facility	(217,000)	(286,000)
Payment of deferred loan costs	(4,964)	0
Payment of debt extinguishment costs	(1,115)	(22,723)
Payment of dividends to holders of Common Stock	(67,121)	(70,652)
Redemptions of noncontrolling interests in the AIR Operating Partnership	(10,529)	(3,452)
Other financing activities, net	(6,928)	(4,691)
Net cash (used in) provided by financing activities	(83,951)	(574,816)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(186,319)	11,150
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	301,405	92,761
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	115,086	103,911
Apartment Income REIT, L.P [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	(9,948)	401,384
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	95,666	84,549
Loss on extinguishment of debt	2,008	23,636
Gain on dispositions of real estate	0	(412,003)
Income tax expense (benefit)	139	(579)
Other, net	5,955	5,485
Net changes in operating assets and operating liabilities	(4,926)	(29,765)
Net cash provided by operating activities	88,894	72,707
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of real estate	(180,673)	0
Capital expenditures	(34,278)	(37,302)
Proceeds from dispositions of real asset	0	559,093
Other investing activities, net	23,689	(8,532)
Net cash (used in) provided by investing activities	(191,262)	513,259
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from non-recourse property debt	320,000	0
Principal repayments on non-recourse property debt	(96,294)	(346,298)
Borrowings on revolving credit facility	0	159,000
Repayments of revolving credit facility	(217,000)	(286,000)
Payment of deferred loan costs	(4,964)	0
Payment of debt extinguishment costs	(1,115)	(22,723)
Payment of distributions General Partner and Special Limited Partner	(67,121)	(70,652)
Redemption of common and preferred units	(10,529)	(3,452)
Other financing activities, net	(6,928)	(4,691)
Net cash (used in) provided by financing activities	(83,951)	(574,816)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(186,319)	11,150
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	301,405	92,761
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	$ 115,086	$ 103,911