Investments - Schedule of Net Realized and Unrealized Gains (Losses) on Investments (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Net realized investment gains	$ 414	$ 215
Equity securities:
Total change in fair value of equity securities	(2,703)	(530)
Net investment losses	(2,289)	(315)
Fixed maturity securities
Equity securities:
Fixed maturity securities	$ (6,264)	$ 5,098

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details