Investments - Net Gains (Losses) On Investments and Other Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fixed income securities:
Gross realized gains on sale of fixed income securities	$ 1,114	$ 3,071	$ 7,152
Gross realized losses on sale of fixed income securities	(8,045)	(17,620)	(15,477)
Impairments	0	0	(1,415)
Equity securities gains (losses):
Equity securities gains (losses), on sales	0	0	(7)
Equity securities, gains (losses), changes in fair value	(130)	530	(2,013)
Change in embedded derivative on Home Re Transactions	(2,791)	(118)	4,269
Other:
Other, gains (losses) on sales	16	(1)	2
Other, market adjustment	(10)	(3)	26
Net gains (losses) on investments and other financial instruments	(9,846)	(14,141)	(7,463)
Proceeds from sales of fixed income securities	45,087	375,788	397,553
Proceeds from sales of equity securities	$ 0	$ 0	$ 97

Debt Securities, Available-For-Sale, Impairment Loss

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Fixed Income Securities

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Amount of realized and unrealized gain (loss) on investments and other financial instruments, including the changes in fair value of embedded derivatives related to Home Re Transactions.

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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 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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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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