CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Additional Paid In Capital	Cumulative Net Income	Cumulative Common Distributions
Beginning balance (in shares) at Dec. 31, 2021		48,425,665
Beginning balance at Dec. 31, 2021	$ 1,496,709	$ 484	$ 2,617,169	$ 175,715	$ (1,296,659)
Increase (Decrease) in Shareholders' Equity
Common share grants	415		415
Common share forfeitures (in shares)		(400)
Common share forfeitures	(1)		(1)
Net loss	(13,407)			(13,407)
Distributions to common shareholders	(26,634)				(26,634)
Ending balance (in shares) at Mar. 31, 2022		48,425,265
Ending balance at Mar. 31, 2022	1,457,082	$ 484	2,617,583	162,308	(1,323,293)
Beginning balance (in shares) at Dec. 31, 2021		48,425,665
Beginning balance at Dec. 31, 2021	1,496,709	$ 484	2,617,169	175,715	(1,296,659)
Increase (Decrease) in Shareholders' Equity
Net loss	(12,499)
Ending balance (in shares) at Sep. 30, 2022		48,566,206
Ending balance at Sep. 30, 2022	1,406,165	$ 486	2,619,041	163,216	(1,376,578)
Beginning balance (in shares) at Mar. 31, 2022		48,425,265
Beginning balance at Mar. 31, 2022	1,457,082	$ 484	2,617,583	162,308	(1,323,293)
Increase (Decrease) in Shareholders' Equity
Common share grants (in shares)		31,500
Common share grants	1,079	$ 1	1,078
Common share forfeitures and repurchases (in shares)		(1,690)
Common share forfeitures and repurchases	(21)		(21)
Net loss	(16,056)			(16,056)
Distributions to common shareholders	(26,634)				(26,634)
Ending balance (in shares) at Jun. 30, 2022		48,455,075
Ending balance at Jun. 30, 2022	1,415,450	$ 485	2,618,640	146,252	(1,349,927)
Increase (Decrease) in Shareholders' Equity
Common share grants (in shares)		141,200
Common share grants	923	$ 1	922
Common share forfeitures and repurchases (in shares)		(30,069)
Common share forfeitures and repurchases	(521)		(521)
Net loss	16,964			16,964
Distributions to common shareholders	(26,651)				(26,651)
Ending balance (in shares) at Sep. 30, 2022		48,566,206
Ending balance at Sep. 30, 2022	1,406,165	$ 486	2,619,041	163,216	(1,376,578)
Beginning balance (in shares) at Dec. 31, 2022		48,565,644
Beginning balance at Dec. 31, 2022	1,386,335	$ 486	2,619,532	169,606	(1,403,289)
Increase (Decrease) in Shareholders' Equity
Common share grants	477		477
Common share forfeitures and repurchases (in shares)		(1,935)
Common share forfeitures and repurchases	(15)		(15)
Net loss	(446)			(446)
Distributions to common shareholders	(26,710)				(26,710)
Ending balance (in shares) at Mar. 31, 2023		48,563,709
Ending balance at Mar. 31, 2023	1,359,641	$ 486	2,619,994	169,160	(1,429,999)
Beginning balance (in shares) at Dec. 31, 2022		48,565,644
Beginning balance at Dec. 31, 2022	1,386,335	$ 486	2,619,532	169,606	(1,403,289)
Increase (Decrease) in Shareholders' Equity
Net loss	(32,281)
Ending balance (in shares) at Sep. 30, 2023		48,757,246
Ending balance at Sep. 30, 2023	1,304,633	$ 488	2,621,107	137,325	(1,454,287)
Beginning balance (in shares) at Mar. 31, 2023		48,563,709
Beginning balance at Mar. 31, 2023	1,359,641	$ 486	2,619,994	169,160	(1,429,999)
Increase (Decrease) in Shareholders' Equity
Common share grants (in shares)		31,500
Common share grants	744		744
Common share forfeitures and repurchases (in shares)		(7,559)
Common share forfeitures and repurchases	(47)		(47)
Net loss	(12,242)			(12,242)
Distributions to common shareholders	(12,141)				(12,141)
Ending balance (in shares) at Jun. 30, 2023		48,587,650
Ending balance at Jun. 30, 2023	1,335,955	$ 486	2,620,691	156,918	(1,442,140)
Increase (Decrease) in Shareholders' Equity
Common share grants (in shares)		210,300
Common share grants	658	$ 2	656
Common share forfeitures and repurchases (in shares)		(40,704)
Common share forfeitures and repurchases	(240)		(240)
Net loss	(19,593)			(19,593)
Distributions to common shareholders	(12,147)				(12,147)
Ending balance (in shares) at Sep. 30, 2023		48,757,246
Ending balance at Sep. 30, 2023	$ 1,304,633	$ 488	$ 2,621,107	$ 137,325	$ (1,454,287)