Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Shares	Preferred Shares	Additional Paid-in Capital	Retained Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		37,470,237
Beginning balance at Dec. 31, 2022	$ 553,766	$ 7	$ 0	$ 868,858	$ (152,055)	$ (163,044)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(107,684)				(107,684)
Other comprehensive income (loss)	99,323					99,323
Vesting of RSUs (in shares)		171,326
Vesting of RSUs	(1,734)			(1,734)
Compensation expense under share incentive plans	9,116			9,116
Dividends on Series A preferred shares	(10,500)				(10,500)
Dividends on common stock	(7,666)				(7,666)
Ending balance (in shares) at Dec. 31, 2023		37,641,563
Ending balance at Dec. 31, 2023	534,621	$ 7	0	876,240	(277,905)	(63,721)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(81,120)				(81,120)
Other comprehensive income (loss)	(6,276)					(6,276)
Conversion of Series A Preferred Shares to common stock (Notes 12 and 13) (in shares)		5,859,375
Conversion of Series A Preferred Shares to common stock (Notes 12 and 13)	37,500	$ 1		38,788	(1,289)
Extinguishment of Series A Preferred Shares - deemed dividend (Note 12)	(25,717)				(25,717)
Enstar common stock investment (Note 13) (in shares)		1,953,125
Enstar common stock investment (Note 13)	12,500	$ 1		12,499
Vesting of RSUs (in shares)		190,255
Vesting of RSUs	(847)			(847)
Compensation expense under share incentive plans	6,631			6,631
Dividends on Series A preferred shares	(10,143)				(10,143)
Dividends on common stock	$ (6,234)				(6,234)
Ending balance (in shares) at Dec. 31, 2024	45,644,318	45,644,318
Ending balance at Dec. 31, 2024	$ 460,915	$ 9	0	933,311	(402,408)	(69,997)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	47,427				47,427
Other comprehensive income (loss)	35,256					35,256
Conversion of Series A Preferred Shares to common stock (Notes 12 and 13) (in shares)		0
Enstar common stock investment (Note 13) (in shares)		0
Vesting of RSUs (in shares)		324,266
Vesting of RSUs	(745)			(745)
Compensation expense under share incentive plans	5,045			5,045
Dividends on Series A preferred shares	(7,876)				(7,876)
Dividends on common stock	$ (1,869)				(1,869)
Ending balance (in shares) at Dec. 31, 2025	45,968,584	45,968,584
Ending balance at Dec. 31, 2025	$ 538,153	$ 9	$ 0	$ 937,611	$ (364,726)	$ (34,741)