Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Perpetual Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions in Excess of Earnings	Total AIR Equity	Noncontrolling Interest in Consolidated Real Estate Partnerships	Common Noncontrolling Interests In AIR Operating Partnerships
Balances at Dec. 31, 2020	$ 1,308,093	$ 2,000	$ 1,489	$ 3,432,121	$ 3,039	$ (2,131,798)	$ 1,306,851	$ (61,943)	$ 63,185
Balances (in shares) at Dec. 31, 2020		20	148,861,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Common Stock	342,469		$ 79	342,390			342,469
Issuance of Common Stock (in shares)			7,825,000
Issuance costs	(337)			(337)			(337)
Redemption of AIR Operating Partnership units	(3,975)								(3,975)
Conversion of AIR Operating Partnership units, Shares			168,940
Conversion of AIR Operating Partnership units	(2)		$ 1	8,239			8,240		(8,242)
Amortization of share-based compensation cost	5,928			2,953			2,953		2,975
Amortization of share-based compensation cost (in shares)			33,000
Effect of changes in ownership for consolidated entities	(230)			(9,846)			(9,846)		(10,076)
Contribution from noncontrolling interest in consolidated real estate partnerships	6,126							6,126
Change in accumulated other comprehensive income (loss)	(3,251)				(3,039)		(3,039)		(212)
Net income (loss)	75,289					74,740	74,740	(3,417)	3,966
Common Stock dividends	(200,327)					(200,327)	(200,327)
Preferred Stock dividends	(136)					(136)	(136)
Distributions to noncontrolling interests	(19,428)							(8,744)	10,684
Other, net	(1,744)		$ 1	(1,584)		(41)	(1,624)	(120)
Other, net (in shares)			95,566
Balances at Sep. 30, 2021	1,508,935	$ 2,000	$ 1,570	3,773,936		(2,257,562)	1,519,944	(68,098)	57,089
Balances (in shares) at Sep. 30, 2021		20	156,983,542
Balances at Jun. 30, 2021	1,571,756	$ 2,000	$ 1,569	3,773,173		(2,197,843)	1,578,899	(67,531)	60,388
Balances (in shares) at Jun. 30, 2021		20	156,856,952
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance costs	(31)			31			31
Redemption of AIR Operating Partnership units	(425)								(425)
Conversion of AIR Operating Partnership units, Shares			125,621
Conversion of AIR Operating Partnership units			$ 1	6,282			6,283		(6,283)
Amortization of share-based compensation cost	1,401			409			409		992
Effect of changes in ownership for consolidated entities	(230)			(5,423)			(5,423)		(5,653)
Contribution from noncontrolling interest in consolidated real estate partnerships	4,128							4,128
Net income (loss)	9,068					9,378	9,378	(785)	475
Common Stock dividends	(69,051)					69,051	69,051
Preferred Stock dividends	(43)					43	43
Distributions to noncontrolling interests	(7,391)							3,910	3,481
Other, net	(707)			(474)		(3)	(477)		(230)
Other, net (in shares)			969
Balances at Sep. 30, 2021	1,508,935	$ 2,000	$ 1,570	3,773,936		(2,257,562)	1,519,944	(68,098)	57,089
Balances (in shares) at Sep. 30, 2021		20	156,983,542
Balances at Dec. 31, 2021	1,939,155	$ 2,129	$ 1,570	3,763,105	0	(1,953,779)	1,813,025	(70,883)	197,013
Balances (in shares) at Dec. 31, 2021		145	156,998,367
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(171,711)		$ (41)	(171,670)			(171,711)
Repurchases of Common Stock (in shares)			(4,107,451)
Redemption of AIR Operating Partnership units	(7,423)								(7,423)
Amortization of share-based compensation cost	6,272			3,519			3,519		2,753
Effect of changes in ownership for consolidated entities				(5,404)			(5,404)		(5,404)
Contribution from noncontrolling interest in consolidated real estate partnerships	8,337							8,337
Change in accumulated other comprehensive income (loss)	49,861				45,948		45,948		3,913
Net income (loss)	611,632					574,864	574,864	(285)	37,053
Purchase of noncontrolling interests in consolidated real estate partnerships	(5,409)			(5,529)			(5,529)	120
Common Stock dividends	(210,361)					(210,361)	(210,361)
Distributions to noncontrolling interests	(26,969)							(13,561)	13,408
Other, net	(1,342)	$ (129)	$ 1	(910)		(133)	(1,171)	(72)	(243)
Other, net (in shares)		(125)	102,532
Balances at Sep. 30, 2022	2,192,042	$ 2,000	$ 1,530	3,583,111	45,948	(1,589,409)	2,043,180	(76,200)	225,062
Balances (in shares) at Sep. 30, 2022		20	152,993,448
Balances at Jun. 30, 2022	2,288,825	$ 2,000	$ 1,542	3,636,906	13,750	(1,521,749)	2,132,449	(70,609)	226,985
Balances (in shares) at Jun. 30, 2022		20	154,187,241
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(46,711)		$ 12	46,699			46,711
Repurchases of Common Stock (in shares)			1,195,690
Redemption of AIR Operating Partnership units	(3,178)								(3,178)
Amortization of share-based compensation cost	1,821			878			878		943
Effect of changes in ownership for consolidated entities				(2,140)			(2,140)		(2,140)
Contribution from noncontrolling interest in consolidated real estate partnerships	529							529
Change in accumulated other comprehensive income (loss)	34,940				32,198		32,198		2,742
Net income (loss)	1,794					1,759	1,759	(102)	137
Purchase of noncontrolling interests in consolidated real estate partnerships	(5,409)			(5,529)			(5,529)	120
Common Stock dividends	(69,377)					69,377	69,377
Distributions to noncontrolling interests	(10,698)							6,226	4,472
Other, net	(494)			(305)		(42)	(347)	88	(235)
Other, net (in shares)			1,897
Balances at Sep. 30, 2022	$ 2,192,042	$ 2,000	$ 1,530	$ 3,583,111	$ 45,948	$ (1,589,409)	$ 2,043,180	$ (76,200)	$ 225,062
Balances (in shares) at Sep. 30, 2022		20	152,993,448