Investments - Schedule of Realized Gains (Losses) on Investments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Investments, Debt and Equity Securities [Abstract]
Sales and other	$ (717,000)	$ 788,000
Provision for credit losses	0	40,000
Fair value option—change in fair value	5,571,000	2,371,000
Mortgage loans	(141,000)	433,000
Other investments	(1,324,000)	(1,078,000)
Realized gains (losses) from investments	3,389,000	2,554,000
Other gains (losses)	(4,867,000)	(2,469,000)
Total realized gains (losses)	(1,478,000)	85,000
Applicable tax	311,000	(18,000)
Realized gains (losses), net of tax	(1,167,000)	67,000
Exchanges of fixed maturities	281,500	55,700,000
Exchanges of fixed maturities, net realized gains (losses)	$ 0	$ 0