Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Shares	Common Shares	Additional Paid-In Capital	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Distributions in Excess of Retained Earnings	Total Shareholders' Equity	Total Shareholders' Equity Cumulative Effect, Period of Adoption, Adjustment	Non-Controlling Interests
Preferred stock, beginning balance (in shares) at Dec. 31, 2019			20,400,000
Beginning balance at Dec. 31, 2019	$ 3,631,936		$ 204	$ 1,305	$ 4,069,410		$ (24,715)	$ (424,996)	$ 3,621,208		$ 10,728
Common stock, beginning balance (in shares) at Dec. 31, 2019				130,484,956
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares, net of offering costs	(94)				(94)				(94)
Issuance of common shares for Board of Trustees compensation (in shares)				23,528
Issuance of common shares for Board of Trustees compensation	637			$ 1	636				637
Repurchase of common shares (in shares)				(47,507)
Repurchase of common shares	(1,255)			$ (1)	(1,254)				(1,255)
Share-based compensation (in shares)				103,083
Share-based compensation	19,416			$ 1	8,799				8,800		10,616
Distributions on common shares/units	(2,100)							(2,076)	(2,076)		(24)
Distributions on preferred shares	(16,278)							(16,278)	(16,278)
Other comprehensive income (loss):
Change in fair value of derivative instruments	(65,419)						(65,419)		(65,419)
Amounts reclassified from other comprehensive income	10,749						10,749		10,749
Net income (loss)	(88,846)							(88,564)	(88,564)		(282)
Preferred stock, ending balance (in shares) at Jun. 30, 2020			20,400,000
Ending balance at Jun. 30, 2020	3,488,746		$ 204	$ 1,306	4,077,497		(79,385)	(531,914)	3,467,708		21,038
Common stock, ending balance (in shares) at Jun. 30, 2020				130,564,060
Preferred stock, beginning balance (in shares) at Mar. 31, 2020			20,400,000
Beginning balance at Mar. 31, 2020	3,627,766		$ 204	$ 1,306	4,075,727		(78,980)	(391,950)	3,606,307		21,459
Common stock, beginning balance (in shares) at Mar. 31, 2020				130,563,226
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares, net of offering costs	(9)				(9)				(9)
Share-based compensation (in shares)				834
Share-based compensation	1,779				1,779				1,779
Distributions on common shares/units	(1,332)							(1,312)	(1,312)		(20)
Distributions on preferred shares	(8,139)							(8,139)	(8,139)
Other comprehensive income (loss):
Change in fair value of derivative instruments	(7,945)						(7,945)		(7,945)
Amounts reclassified from other comprehensive income	7,540						7,540		7,540
Net income (loss)	(130,914)							(130,513)	(130,513)		(401)
Preferred stock, ending balance (in shares) at Jun. 30, 2020			20,400,000
Ending balance at Jun. 30, 2020	$ 3,488,746		$ 204	$ 1,306	4,077,497		(79,385)	(531,914)	3,467,708		21,038
Common stock, ending balance (in shares) at Jun. 30, 2020				130,564,060
Preferred stock, beginning balance (in shares) at Dec. 31, 2020	20,400,000		20,400,000
Beginning balance at Dec. 31, 2020	$ 3,264,326	$ (113,099)	$ 204	$ 1,307	4,169,870	$ (113,099)	(60,071)	(853,973)	3,257,337	$ (113,099)	6,989
Common stock, beginning balance (in shares) at Dec. 31, 2020	130,673,300			130,673,300
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares, net of offering costs (in shares)			9,200,000
Issuance of shares, net of offering costs	$ 222,330		$ 92		222,238				222,330
Issuance of common shares for Board of Trustees compensation (in shares)				27,711
Issuance of common shares for Board of Trustees compensation	516			$ 1	515				516
Repurchase of common shares (in shares)				(38,310)
Repurchase of common shares	(720)			$ (1)	(719)				(720)
Share-based compensation (in shares)				151,049
Share-based compensation	6,691			$ 1	5,643				5,644		1,047
Distributions on common shares/units	(2,429)							(2,396)	(2,396)		(33)
Distributions on preferred shares	(18,233)							(18,233)	(18,233)
Purchases of capped calls in connection with convertible senior notes	(20,975)				(20,975)				(20,975)
Other comprehensive income (loss):
Change in fair value of derivative instruments	7,426						7,426		7,426
Amounts reclassified from other comprehensive income	12,825						12,825		12,825
Net income (loss)	$ (120,012)							(119,052)	(119,052)		(960)
Preferred stock, ending balance (in shares) at Jun. 30, 2021	29,600,000		29,600,000
Ending balance at Jun. 30, 2021	$ 3,238,646		$ 296	$ 1,308	4,263,473		(39,820)	(993,654)	3,231,603		7,043
Common stock, ending balance (in shares) at Jun. 30, 2021	130,813,750			130,813,750
Preferred stock, beginning balance (in shares) at Mar. 31, 2021			20,400,000
Beginning balance at Mar. 31, 2021	$ 3,019,156		$ 204	$ 1,308	4,038,860		(43,917)	(983,771)	3,012,684		6,472
Common stock, beginning balance (in shares) at Mar. 31, 2021				130,812,917
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares, net of offering costs (in shares)			9,200,000
Issuance of shares, net of offering costs	222,340		$ 92		222,248				222,340
Share-based compensation (in shares)				833
Share-based compensation	3,063				2,365				2,365		698
Distributions on common shares/units	(1,344)							(1,319)	(1,319)		(25)
Distributions on preferred shares	(10,094)							(10,094)	(10,094)
Other comprehensive income (loss):
Change in fair value of derivative instruments	(2,310)						(2,310)		(2,310)
Amounts reclassified from other comprehensive income	6,407						6,407		6,407
Net income (loss)	$ 1,428							1,530	1,530		(102)
Preferred stock, ending balance (in shares) at Jun. 30, 2021	29,600,000		29,600,000
Ending balance at Jun. 30, 2021	$ 3,238,646		$ 296	$ 1,308	$ 4,263,473		$ (39,820)	$ (993,654)	$ 3,231,603		$ 7,043
Common stock, ending balance (in shares) at Jun. 30, 2021	130,813,750			130,813,750