Condensed Consolidated Statements of Comprehensive Income (Loss)(Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income (loss)	$ 10,671	$ (24,815)	$ 80,099	$ 27,366
Unrealized losses on available for sale debt securities	(0)	(243)	(3,251)	(658)
Comprehensive income (loss)	10,671	(25,058)	76,848	26,708
Comprehensive (income) loss attributable to noncontrolling interests	(1,293)	(177)	(5,147)	(6,354)
Comprehensive income (loss) attributable to AIR	9,378	(25,235)	71,701	20,354
Apartment Income REIT, L.P [Member]
Net income (loss)	10,671	(24,815)	80,099	27,366
Unrealized losses on available for sale debt securities	(0)	(243)	(3,251)	(658)
Comprehensive income (loss)	10,671	(25,058)	76,848	26,708
Comprehensive (income) loss attributable to noncontrolling interests	785	154	3,417	153
Comprehensive income (loss) attributable to AIR	$ 11,456	$ (24,904)	$ 80,265	$ 26,861