CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Cumulative Common Distributions	Additional Paid in Capital	Cumulative Net Income	Cumulative Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2021		165,092,333
Beginning balance at Dec. 31, 2021	$ 1,555,306	$ 1,651	$ (5,635,342)	$ 4,552,558	$ 2,635,660	$ 779
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(132,381)				(132,381)
Equity interest in investee’s unrealized gains (losses)	1,604					1,604
Common share grants (in shares)		433,500
Common share grants	$ 2,788	$ 4		2,784
Common share repurchases (in shares)	(69,867)	(69,867)
Common share repurchases	$ (470)	$ 0		(470)
Common share forfeitures (in shares)		(3,400)
Common share forfeitures	(11)			(11)
Distributions	(38,044)		(38,044)
Ending balance (in shares) at Dec. 31, 2022		165,452,566
Ending balance at Dec. 31, 2022	1,388,792	$ 1,655	(5,673,386)	4,554,861	2,503,279	2,383
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(32,779)				(32,779)
Equity interest in investee’s unrealized gains (losses)	(65)					(65)
Common share grants (in shares)		438,000
Common share grants	$ 3,482	$ 4		3,478
Common share repurchases (in shares)	(98,571)	(98,571)
Common share repurchases	$ (802)	$ (1)		(801)
Common share forfeitures (in shares)		(22,400)
Common share forfeitures	(65)			(65)
Distributions	(132,430)		(132,430)
Ending balance (in shares) at Dec. 31, 2023		165,769,595
Ending balance at Dec. 31, 2023	1,226,133	$ 1,658	(5,805,816)	4,557,473	2,470,500	2,318
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(275,526)				(275,526)
Equity interest in investee’s unrealized gains (losses)	(453)					(453)
Common share grants (in shares)		1,031,329
Common share grants	$ 3,621	$ 10		3,611
Common share repurchases (in shares)	(161,387)	(161,387)
Common share repurchases	$ (751)	$ (2)		(749)
Common share forfeitures (in shares)		(3,000)
Common share forfeitures	(1)			(1)
Distributions	(101,150)		(101,150)
Ending balance (in shares) at Dec. 31, 2024		166,636,537
Ending balance at Dec. 31, 2024	$ 851,873	$ 1,666	$ (5,906,966)	$ 4,560,334	$ 2,194,974	$ 1,865