Goodwill and Intangible Assets - Schedule of Changes in Net Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Intangible Assets [Roll Forward]
Net Carrying Value	$ 32,450	$ 32,813
Amortization	(363)	(363)	$ (363)
Impairment Losses	0	0
Net Carrying Value	32,087	$ 32,450	32,813
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration]		Impairment of intangible assets
Excess and Surplus Lines
Intangible Assets [Roll Forward]
Net Carrying Value	28,385	$ 28,748
Amortization	(363)	(363)	(363)
Impairment Losses	0	0
Net Carrying Value	28,022	28,385	28,748
Excess and Surplus Lines | Broker relationships
Intangible Assets [Roll Forward]
Net Carrying Value	3,785	4,148
Amortization	(363)	(363)
Impairment Losses	0	0
Net Carrying Value	3,422	3,785	4,148
Excess and Surplus Lines | Trademarks
Intangible Assets [Roll Forward]
Net Carrying Value	19,700	19,700
Amortization	0	0
Impairment Losses	0	0
Net Carrying Value	19,700	19,700	19,700
Excess and Surplus Lines | Insurance licenses and authorities
Intangible Assets [Roll Forward]
Net Carrying Value	4,900	4,900
Amortization	0	0
Impairment Losses	0	0
Net Carrying Value	4,900	4,900	4,900
Specialty Admitted Insurance
Intangible Assets [Roll Forward]
Net Carrying Value	4,065	4,065
Amortization	0	0	0
Impairment Losses	0	0
Net Carrying Value	4,065	4,065	4,065
Specialty Admitted Insurance | Insurance licenses and authorities
Intangible Assets [Roll Forward]
Net Carrying Value	4,065	4,065
Amortization	0	0
Impairment Losses	0	0
Net Carrying Value	$ 4,065	$ 4,065	$ 4,065