Investments in Fixed Maturity and Equity Securities - Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net Investment Income [Line Items]
Gross investment income	$ 11,260	$ 0	$ 11,260	$ 0
Investment expenses	(272)	0	(272)	0
Net investment income	10,988	0	10,988	0
Fixed maturity securities AFS
Net Investment Income [Line Items]
Gross investment income	8,563	0	8,563	0
Equity securities
Net Investment Income [Line Items]
Gross investment income	1,396	0	1,396	0
Short-term investments, cash, and other
Net Investment Income [Line Items]
Gross investment income	$ 1,301	$ 0	$ 1,301	$ 0

Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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Amount of expenses related to the generation of investment income.

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