Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests in Consolidated Subsidiaries	Total
Balance at beginning of period at Dec. 31, 2020	$ 1,319	$ 3,657,643	$ (412,944)	$ (39,979)	$ 167	$ 3,206,206
Balance at beginning of period (in shares) at Dec. 31, 2020	131,778
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders and noncontrolling interests			(22,811)		(1,108)	(23,919)
Conversion of common limited partnership units ("OP Units") to common shares	$ 8	27,342				27,350
Conversion of common limited partnership units ("OP Units") to common shares (in shares)	829
Common shares repurchased	$ (29)	(88,104)				(88,133)
Common shares repurchased (in shares)	(2,937)
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP")		1,549				1,549
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP") (in shares)	34
Dividends declared on common shares			(59,278)			(59,278)
Distributions/Contributions from noncontrolling interests, net					17,436	17,436
Redeemable noncontrolling interests redemption value adjustment and total other comprehensive loss allocation		8,032		(1,621)		6,411
Total other comprehensive income				16,154		16,154
Balance at end of period (in shares) at Sep. 30, 2021	129,704
Balance at end of period at Sep. 30, 2021	$ 1,298	3,606,462	(495,033)	(25,446)	16,495	3,103,776
Balance at beginning of period at Jun. 30, 2021	$ 1,319	3,650,217	(466,230)	(28,605)	16,540	3,173,241
Balance at beginning of period (in shares) at Jun. 30, 2021	131,841
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders and noncontrolling interests			893			893
Conversion of common limited partnership units ("OP Units") to common shares	$ 2	5,668				5,670
Conversion of common limited partnership units ("OP Units") to common shares (in shares)	180
Common shares repurchased	$ (23)	(68,907)				(68,930)
Common shares repurchased (in shares)	(2,317)
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP")		210				210
Dividends declared on common shares			(29,696)			(29,696)
Distributions/Contributions from noncontrolling interests, net					(45)	(45)
Redeemable noncontrolling interests redemption value adjustment and total other comprehensive loss allocation		19,274		(413)		18,861
Total other comprehensive income				3,572		3,572
Balance at end of period (in shares) at Sep. 30, 2021	129,704
Balance at end of period at Sep. 30, 2021	$ 1,298	3,606,462	(495,033)	(25,446)	16,495	3,103,776
Balance at beginning of period at Dec. 31, 2021	$ 1,275	3,539,916	(609,331)	(15,950)	22,507	$ 2,938,417
Balance at beginning of period (in shares) at Dec. 31, 2021	127,378					127,378
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders and noncontrolling interests			103,950		174	$ 104,124
Conversion of common limited partnership units ("OP Units") to common shares	$ 5	12,662				12,667
Conversion of common limited partnership units ("OP Units") to common shares (in shares)	493
Common shares repurchased	$ (142)	(360,900)				(361,042)
Common shares repurchased (in shares)	(14,151)
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP")		1,806				1,806
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP") (in shares)	44
Dividends declared on common shares			(53,407)			(53,407)
Distributions/Contributions from noncontrolling interests, net					9,209	9,209
Redeemable noncontrolling interests redemption value adjustment and total other comprehensive loss allocation		72,175		(8,653)		63,522
Total other comprehensive income				71,473		$ 71,473
Balance at end of period (in shares) at Sep. 30, 2022	113,764					113,764
Balance at end of period at Sep. 30, 2022	$ 1,138	3,265,659	(558,788)	46,870	31,890	$ 2,786,769
Balance at beginning of period at Jun. 30, 2022	$ 1,160	3,285,511	(513,746)	18,640	31,640	2,823,205
Balance at beginning of period (in shares) at Jun. 30, 2022	115,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders and noncontrolling interests			(19,293)		258	(19,035)
Conversion of common limited partnership units ("OP Units") to common shares	$ 2	4,889				4,891
Conversion of common limited partnership units ("OP Units") to common shares (in shares)	213
Common shares repurchased	$ (24)	(53,979)				(54,003)
Common shares repurchased (in shares)	(2,311)
Common shares issued pursuant to employee incentive compensation plan and Employee Share Purchase Plan ("ESPP")		377				377
Dividends declared on common shares			(25,749)			(25,749)
Distributions/Contributions from noncontrolling interests, net					(8)	(8)
Redeemable noncontrolling interests redemption value adjustment and total other comprehensive loss allocation		28,861		(4,376)		24,485
Total other comprehensive income				32,606		$ 32,606
Balance at end of period (in shares) at Sep. 30, 2022	113,764					113,764
Balance at end of period at Sep. 30, 2022	$ 1,138	$ 3,265,659	$ (558,788)	$ 46,870	$ 31,890	$ 2,786,769