CONSOLIDATED STATEMENTS OF EQUITY - 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)	Total Noncontrolling Interests	Cumulative Effect, Period of Adoption, Adjustment	[1]	Cumulative Effect, Period of Adoption, Adjustment Total Stockholders’ Equity	[1]	Cumulative Effect, Period of Adoption, Adjustment Cumulative Dividends In Excess Of Earnings	[1]	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 Total Noncontrolling Interests
Balance (in shares) at Dec. 31, 2019			505,222													505,222
Balance at Dec. 31, 2019	$ 6,667,474	$ 6,085,058	$ 505,222	$ 9,183,892	$ (3,601,199)	$ (2,857)	$ 582,416	$ (1,524)		$ (1,524)		$ (1,524)		$ 6,665,950	$ 6,083,534	$ 505,222	$ 9,183,892	$ (3,602,723)	$ (2,857)	$ 582,416
Increase (Decrease) in Stockholders' Equity
Issuance of common stock, net	1,060,000
Balance (in shares) at Mar. 31, 2020			538,135
Balance at Mar. 31, 2020	7,813,443	7,236,508	$ 538,135	10,213,011	(3,512,143)	(2,495)	576,935
Balance (in shares) at Dec. 31, 2019			505,222													505,222
Balance at Dec. 31, 2019	6,667,474	6,085,058	$ 505,222	9,183,892	(3,601,199)	(2,857)	582,416	$ (1,524)		$ (1,524)		$ (1,524)		$ 6,665,950	$ 6,083,534	$ 505,222	$ 9,183,892	$ (3,602,723)	$ (2,857)	$ 582,416
Increase (Decrease) in Stockholders' Equity
Net income (loss)	337,589	330,586			330,586		7,003
Other comprehensive income (loss)	671	671				671
Issuance of common stock, net (in shares)			33,201
Issuance of common stock, net	1,065,389	1,065,389	$ 33,201	1,032,188
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)			(279)
Repurchase of common stock	(9,998)	(9,998)	$ (279)	(9,719)
Exercise of stock options (in shares)			54
Exercise of stock options	1,806	1,806	$ 54	1,752
Amortization of stock-based compensation	10,658	10,658		10,658
Common dividends	(388,050)	(388,050)			(388,050)
Distributions to noncontrolling interest	(15,294)						(15,294)
Balance (in shares) at Jun. 30, 2020			538,318
Balance at Jun. 30, 2020	7,668,721	7,098,673	$ 538,318	10,222,728	(3,660,187)	(2,186)	570,048
Balance (in shares) at Mar. 31, 2020			538,135
Balance at Mar. 31, 2020	7,813,443	7,236,508	$ 538,135	10,213,011	(3,512,143)	(2,495)	576,935
Increase (Decrease) in Stockholders' Equity
Net income (loss)	55,049	51,506			51,506		3,543
Other comprehensive income (loss)	309	309				309
Issuance of common stock, net (in shares)			97
Issuance of common stock, net	767	767	$ 97	670
Conversion of DownREIT units to common stock (in shares)			97
Conversion of DownREIT units to common stock	0	3,568	$ 97	3,471			(3,568)
Repurchase of common stock (in shares)			(11)
Repurchase of common stock	(261)	(261)	$ (11)	(250)
Amortization of stock-based compensation	5,826	5,826		5,826
Common dividends	(199,550)	(199,550)			(199,550)
Distributions to noncontrolling interest	(6,862)						(6,862)
Balance (in shares) at Jun. 30, 2020			538,318
Balance at Jun. 30, 2020	7,668,721	7,098,673	$ 538,318	10,222,728	(3,660,187)	(2,186)	570,048
Balance (in shares) at Dec. 31, 2020			538,405
Balance at Dec. 31, 2020	7,344,572	6,788,345	$ 538,405	10,229,857	(3,976,232)	(3,685)	556,227
Increase (Decrease) in Stockholders' Equity
Net income (loss)	431,448	422,068			422,068		9,380
Other comprehensive income (loss)	296	296				296
Issuance of common stock, net (in shares)			954
Issuance of common stock, net	1,044	1,044	$ 954	90
Repurchase of common stock (in shares)			(408)
Repurchase of common stock	(12,480)	(12,480)	$ (408)	(12,072)
Exercise of stock options (in shares)			4
Exercise of stock options	126	126	$ 4	122
Amortization of stock-based compensation	11,557	11,557		11,557
Common dividends	(326,089)	(326,089)			(326,089)
Distributions to noncontrolling interest	(16,675)						(16,675)
Purchase of noncontrolling interests	(70)	(5)		(5)			(65)
Balance (in shares) at Jun. 30, 2021			538,955
Balance at Jun. 30, 2021	7,433,729	6,884,862	$ 538,955	10,229,549	(3,880,253)	(3,389)	548,867
Balance (in shares) at Mar. 31, 2021			538,886
Balance at Mar. 31, 2021	7,316,682	6,764,538	$ 538,886	10,223,711	(3,994,562)	(3,497)	552,144
Increase (Decrease) in Stockholders' Equity
Net income (loss)	282,025	276,280			276,280		5,745
Other comprehensive income (loss)	108	108				108
Issuance of common stock, net (in shares)			75
Issuance of common stock, net	(43)	(43)	$ 75	(118)
Repurchase of common stock (in shares)			(10)
Repurchase of common stock	(315)	(315)	$ (10)	(305)
Exercise of stock options (in shares)			4
Exercise of stock options	126	126	$ 4	122
Amortization of stock-based compensation	6,144	6,144		6,144
Common dividends	(161,971)	(161,971)			(161,971)
Distributions to noncontrolling interest	(8,957)						(8,957)
Purchase of noncontrolling interests	(70)	(5)		(5)			(65)
Balance (in shares) at Jun. 30, 2021			538,955
Balance at Jun. 30, 2021	$ 7,433,729	$ 6,884,862	$ 538,955	$ 10,229,549	$ (3,880,253)	$ (3,389)	$ 548,867

[1] On January 1, 2020, the Company adopted a series of Accounting Standards Updates (“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.