Investments - Net Realized and Unrealized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Equity securities:
Equity securities	$ 2,278	$ 4,848	$ 871
Net realized and unrealized investment gains (losses)	2,336	3,229	(5,838)
Available-for-sale securities
Available-for-sale securities:
Gross realized gains	2,891	3,415	804
Gross realized losses	(2,838)	(5,035)	(7,523)
Net realized gains (losses) on available-for-sale securities	53	(1,620)	(6,719)
Equity securities
Equity securities:
Equity securities	2,278	4,848	871
Miscellaneous
Equity securities:
Miscellaneous	$ 5	$ 1	$ 10

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Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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