Investments - Schedule of Net Realized and Unrealized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Gain (Loss) on Securities [Line Items]
Equity securities, gross gains		$ 46		$ 46
Equity securities, gross losses		0		0
Equity securities, net	$ 0	46	$ 0	46
Net realized and unrealized gains (losses) on investment, gross gains	807	1,433	4,536	1,433
Net realized and unrealized gains (losses) on investment, gross losses	(3,791)	(375)	(6,181)	(375)
Net realized and unrealized investment (losses) gains	(2,984)	1,058	(1,645)	1,058
Net gains recognized for equity securities	0	46	0	46
Net gains recognized for equity securities divested	0	0	0	0
Net unrealized gains recognized for equity securities still held at the reporting date	0	46	0	46
Fixed maturities
Gain (Loss) on Securities [Line Items]
Fixed maturities, gross gains	145	875	215	875
Fixed maturities, gross losses	(80)	(111)	(98)	(111)
Fixed maturities, net	65	764	117	764
Other investments
Gain (Loss) on Securities [Line Items]
Other investments, gross gains	662	512	4,321	512
Other investments, gross losses	(3,711)	(264)	(6,083)	(264)
Other investments, net	$ (3,049)	$ 248	$ (1,762)	$ 248

Equity Securities, FV-NI, Realized And Unrealized Gain

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