CONSOLIDATED STATEMENTS OF EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS - USD ($) shares in Thousands, $ in Thousands	Total	Total Stockholders’ Equity	Common Stock	Additional Paid-In Capital	Cumulative Dividends In Excess Of Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Cumulative Effect, Period of Adoption, Adjustment		Cumulative Effect, Period of Adoption, Adjustment Total Stockholders’ Equity		Cumulative Effect, Period of Adoption, Adjustment Cumulative Dividends In Excess Of Earnings		Cumulative Effect, Period of Adoption, Adjusted Balance	Cumulative Effect, Period of Adoption, Adjusted Balance Total Stockholders’ Equity	Cumulative Effect, Period of Adoption, Adjusted Balance Common Stock	Cumulative Effect, Period of Adoption, Adjusted Balance Additional Paid-In Capital	Cumulative Effect, Period of Adoption, Adjusted Balance Cumulative Dividends In Excess Of Earnings	Cumulative Effect, Period of Adoption, Adjusted Balance Accumulated Other Comprehensive Income (Loss)	Cumulative Effect, Period of Adoption, Adjusted Balance Noncontrolling Interests
Balance (in shares) at Dec. 31, 2018			477,496													477,496
Balance at Dec. 31, 2018	$ 6,512,591	$ 5,944,439	$ 477,496	$ 8,398,847	$ (2,927,196)	$ (4,708)	$ 568,152	$ 590	[1]	$ 590	[1]	$ 590	[1]	$ 6,513,181	$ 5,945,029	$ 477,496	$ 8,398,847	$ (2,926,606)	$ (4,708)	$ 568,152
Increase (Decrease) in Stockholders' Equity
Accounting standards update	Accounting Standards Update 2016-13 [Member]
Net income (loss)	$ 60,061	45,530			45,530		14,531
Other comprehensive income (loss)	1,851	1,851				1,851
Issuance of common stock, net (in shares)			27,523
Issuance of common stock, net	791,048	791,048	$ 27,523	763,525
Conversion of DownREIT units to common stock (in shares)			213
Conversion of DownREIT units to common stock	0	5,145	$ 213	4,932			(5,145)
Repurchase of common stock (in shares)			(162)
Repurchase of common stock	(5,043)	(5,043)	$ (162)	(4,881)
Exercise of stock options (in shares)			152
Exercise of stock options	4,538	4,538	$ 152	4,386
Amortization of stock-based compensation	18,162	18,162		18,162
Common dividends	(720,123)	(720,123)			(720,123)
Distributions to noncontrolling interests	(28,301)						(28,301)
Issuances of noncontrolling interests	33,318						33,318
Purchase of noncontrolling interests	(1,218)	(1,079)		(1,079)			(139)
Adjustments to redemption value of redeemable noncontrolling interests	(8,615)	(8,615)		(8,615)
Balance (in shares) at Dec. 31, 2019			505,222													505,222
Balance at Dec. 31, 2019	6,658,859	6,076,443	$ 505,222	9,175,277	(3,601,199)	(2,857)	582,416	$ (1,524)	[2]	$ (1,524)	[2]	$ (1,524)	[2]	$ 6,657,335	$ 6,074,919	$ 505,222	$ 9,175,277	$ (3,602,723)	$ (2,857)	$ 582,416
Beginning balance at Dec. 31, 2018	0
Increase (Decrease) in Redeemable Noncontrolling Interests
Distributions to noncontrolling interests	(22)
Contributions from noncontrolling interests	2,513
Adjustments to redemption value of redeemable noncontrolling interests	8,615
Ending balance at Dec. 31, 2019	11,106
Increase (Decrease) in Stockholders' Equity
Net income (loss)	428,253	413,563			413,563		14,690
Other comprehensive income (loss)	(828)	(828)				(828)
Issuance of common stock, net (in shares)			33,307
Issuance of common stock, net	1,067,071	1,067,071	$ 33,307	1,033,764
Conversion of DownREIT units to common stock (in shares)			120
Conversion of DownREIT units to common stock	0	4,077	$ 120	3,957			(4,077)
Repurchase of common stock (in shares)			(298)
Repurchase of common stock	(10,529)	(10,529)	$ (298)	(10,231)
Exercise of stock options (in shares)			54
Exercise of stock options	1,806	1,806	$ 54	1,752
Amortization of stock-based compensation	20,534	20,534		20,534
Common dividends	(787,072)	(787,072)			(787,072)
Distributions to noncontrolling interests	(36,994)						(36,994)
Purchase of noncontrolling interests	(3,619)	(3,811)		(3,811)			192
Adjustments to redemption value of redeemable noncontrolling interests	(46,007)	(46,007)		(46,007)
Balance (in shares) at Dec. 31, 2020			538,405
Balance at Dec. 31, 2020	7,289,950	6,733,723	$ 538,405	10,175,235	(3,976,232)	(3,685)	556,227
Increase (Decrease) in Redeemable Noncontrolling Interests
Distributions to noncontrolling interests	(160)
Contributions from noncontrolling interests	443
Adjustments to redemption value of redeemable noncontrolling interests	46,007
Ending balance at Dec. 31, 2020	57,396
Increase (Decrease) in Stockholders' Equity
Net income (loss)	525,886	505,540			505,540		$ 20,346
Other comprehensive income (loss)	538	538				538
Issuance of common stock, net (in shares)			1,005
Issuance of common stock, net	1,745	1,745	$ 1,005	740
Conversion of DownREIT units to common stock (in shares)			8				7,000
Conversion of DownREIT units to common stock	0	201	$ 8	193			$ (201)
Repurchase of common stock (in shares)			(418)
Repurchase of common stock	(12,841)	(12,841)	$ (418)	(12,423)
Exercise of stock options (in shares)			97
Exercise of stock options	3,291	3,291	$ 97	3,194
Amortization of stock-based compensation	22,851	22,851		22,851
Common dividends	(650,082)	(650,082)			(650,082)
Distributions to noncontrolling interests	(33,017)						(33,017)
Purchase of noncontrolling interests	(70)	(5)		(5)			(65)
Adjustments to redemption value of redeemable noncontrolling interests	(89,491)	(89,491)		(89,491)
Balance (in shares) at Dec. 31, 2021			539,097
Balance at Dec. 31, 2021	7,058,760	$ 6,515,470	$ 539,097	$ 10,100,294	$ (4,120,774)	$ (3,147)	$ 543,290
Increase (Decrease) in Redeemable Noncontrolling Interests
Net income (loss)	44
Distributions to noncontrolling interests	(162)
Purchase of noncontrolling interests	(60,065)
Contributions from noncontrolling interests	640
Adjustments to redemption value of redeemable noncontrolling interests	89,491
Ending balance at Dec. 31, 2021	$ 87,344

[1] On January 1, 2019, the Company adopted a series of Accounting Standards Updates (“ASUs”) related to accounting for leases, and recognized the cumulative-effect of adoption to beginning retained earnings. Refer to Note 2 for a detailed impact of adoption.

[2] On January 1, 2020, the Company adopted a series of ASUs related to accounting for credit losses and recognized the cumulative-effect of adoption to beginning retained earnings. Refer to Note 2 for a detailed impact of adoption.