Investments - Net Realized and Unrealized Investment Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net realized and unrealized investment gains and losses
Gains on sales of fixed maturity securities	$ 2	$ 117	$ 10	$ 335
Gains on sales of equity securities		188		1,416
Total realized gains	2	305	10	1,751
Losses on sales of fixed maturity securities	(195)		(309)	(1)
Total realized losses	(195)		(309)	(1)
Net realized investment gains (losses)	(193)	305	(299)	1,750
Net unrealized losses on equity securities	(2,163)	(618)	(8,070)	(2,502)
Net realized and unrealized losses on investments	$ (2,356)	(313)	(8,369)	(752)
Proceeds from sales of fixed maturity securities
Proceeds from the sale of fixed maturity securities		$ 1,000	$ 5,800	$ 12,100

Amount of realized gain on investment in debt and equity securities.

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Amount of realized loss on investment in debt and equity securities.

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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 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 gain from sale of 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 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 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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