Investments - Net Realized and Unrealized Investment Gains (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Equity securities:
Equity securities	$ 759	$ 2,115
Net realized and unrealized investment gains	502	1,853
Available-for-sale securities
Available-for-sale securities:
Gross realized gains	349	270
Gross realized losses	(611)	(532)
Net realized losses on available-for-sale securities	(262)	(262)
Equity securities
Equity securities:
Equity securities	759	2,115
Miscellaneous
Equity securities:
Miscellaneous	$ 5	$ 0

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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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Amount of gain (loss) included in earnings for investments classified as other.

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