Investments - Net Gains (Losses) On Investments and Other Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Fixed income securities
Gains on sales	$ 1,667	$ 1,389	$ 6,788	$ 6,680
Losses on sales	(7,040)	(259)	(12,790)	(1,004)
Change in credit allowance	0	(1)	0	48
Impairments	(1,415)	0	(1,415)	0
Equity securities gains (losses)	(617)	(108)	(2,351)	(308)
Change in embedded derivative on Home Re Transactions	4,199	(397)	983	376
Other	(52)	(12)	9	(19)
Net gains (losses) on investments and other financial instruments	(3,258)	612	(8,776)	5,773
Proceeds from sales of fixed income securities	$ 125,186	$ 106,765	$ 388,740	$ 246,827

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 increase (decrease) in allowance for credit loss of 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 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 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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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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

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Amount of cash inflow from sale of 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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