Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Shares (Par)	Preferred Shares (Par)	Additional Paid-in Capital	Retained Deficit	Accumulated Other Comprehensive Loss
Balance (in shares) at Dec. 31, 2023		37,641,563
Balance at Dec. 31, 2023	$ 534,621	$ 7	$ 0	$ 876,240	$ (277,905)	$ (63,721)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,028				23,028
Other comprehensive income (loss)	(10,132)					(10,132)
Vesting of RSUs (in shares)		184,204
Vesting of RSUs	(837)			(837)
Compensation expense under share incentive plans	4,228			4,228
Dividends on Series A preferred shares	(5,250)				(5,250)
Dividends on common shares	(3,867)				(3,867)
Balance (in shares) at Jun. 30, 2024		37,825,767
Balance at Jun. 30, 2024	541,791	$ 7	0	879,631	(263,994)	(73,853)
Balance (in shares) at Mar. 31, 2024		37,822,340
Balance at Mar. 31, 2024	539,537	$ 7	0	878,091	(267,067)	(71,494)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,625				7,625
Other comprehensive income (loss)	(2,359)					(2,359)
Vesting of RSUs (in shares)		3,427
Vesting of RSUs	(13)			(13)
Compensation expense under share incentive plans	1,553			1,553
Dividends on Series A preferred shares	(2,625)				(2,625)
Dividends on common shares	(1,927)				(1,927)
Balance (in shares) at Jun. 30, 2024		37,825,767
Balance at Jun. 30, 2024	$ 541,791	$ 7	0	879,631	(263,994)	(73,853)
Balance (in shares) at Dec. 31, 2024	45,644,318	45,644,318
Balance at Dec. 31, 2024	$ 460,915	$ 9	0	933,311	(402,408)	(69,997)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,333				14,333
Other comprehensive income (loss)	19,249					19,249
Vesting of RSUs (in shares)		251,017
Vesting of RSUs	(550)			(550)
Compensation expense under share incentive plans	3,494			3,494
Dividends on Series A preferred shares	(3,938)				(3,938)
Dividends on common shares	$ (945)				(945)
Balance (in shares) at Jun. 30, 2025	45,895,335	45,895,335
Balance at Jun. 30, 2025	$ 492,558	$ 9	0	936,255	(392,958)	(50,748)
Balance (in shares) at Mar. 31, 2025		45,892,706
Balance at Mar. 31, 2025	484,480	$ 9	0	935,426	(395,280)	(55,675)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,759				4,759
Other comprehensive income (loss)	4,927					4,927
Vesting of RSUs (in shares)		2,629
Vesting of RSUs	(5)			(5)
Compensation expense under share incentive plans	834			834
Dividends on Series A preferred shares	(1,969)				(1,969)
Dividends on common shares	$ (468)				(468)
Balance (in shares) at Jun. 30, 2025	45,895,335	45,895,335
Balance at Jun. 30, 2025	$ 492,558	$ 9	$ 0	$ 936,255	$ (392,958)	$ (50,748)