CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Total Equity Attributable to Common Shareholders	Common Shares	Additional Paid In Capital	Cumulative Net Income	Cumulative Distributions	Total Equity Attributable to Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2020			238,268,478
Beginning balance at Dec. 31, 2020	$ 2,619,222	$ 2,495,837	$ 2,383	$ 4,613,904	$ 1,913,109	$ (4,033,559)	$ 123,385
Increase (Decrease) in Shareholders' Equity
Net income (loss)	179,926	174,515			174,515		5,411
Distributions	(9,540)	(9,540)				(9,540)
Share grants (in shares)			838,000
Share grants	1,964	1,964	$ 8	1,956
Share repurchases (in shares)			(109,384)
Share repurchases	(383)	(383)	$ (1)	(382)
Share forfeitures (in shares)			(2,200)
Share forfeitures	(3)	(3)		(3)
Distributions to noncontrolling interest	(22,348)						(22,348)
Sale of interest in joint venture	(106,448)						(106,448)
Ending balance (in shares) at Dec. 31, 2021			238,994,894
Ending balance at Dec. 31, 2021	2,662,390	2,662,390	$ 2,390	4,615,475	2,087,624	(4,043,099)	0
Increase (Decrease) in Shareholders' Equity
Net income (loss)	(15,774)	(15,774)			(15,774)
Distributions	(9,568)	(9,568)				(9,568)
Share grants (in shares)			847,000
Share grants	1,745	1,745	$ 8	1,737
Share repurchases (in shares)			(133,752)
Share repurchases	(171)	(171)	$ (1)	(170)
Share forfeitures (in shares)			(13,300)
Share forfeitures	$ (11)	(11)		(11)
Ending balance (in shares) at Dec. 31, 2022	239,694,842		239,694,842
Ending balance at Dec. 31, 2022	$ 2,638,611	2,638,611	$ 2,397	4,617,031	2,071,850	(4,052,667)	0
Increase (Decrease) in Shareholders' Equity
Net income (loss)	(293,572)	(293,572)			(293,572)
Distributions	(9,595)	(9,595)				(9,595)
Share grants (in shares)			960,000
Share grants	1,850	1,850	$ 9	1,841
Share repurchases (in shares)			(184,344)
Share repurchases	(393)	(393)	$ (1)	(392)
Share forfeitures (in shares)			(46,600)
Share forfeitures	$ (10)	(10)		(10)
Ending balance (in shares) at Dec. 31, 2023	240,423,898		240,423,898
Ending balance at Dec. 31, 2023	$ 2,336,891	$ 2,336,891	$ 2,405	$ 4,618,470	$ 1,778,278	$ (4,062,262)	$ 0