Investments - Schedule of Unrealized Gains or (Losses) Included in Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Changes in unrealized gains (losses) included in accumulated other comprehensive income for assets held	$ (1,964)	$ (1,924)
Asset- backed Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Changes in unrealized gains (losses) included in accumulated other comprehensive income for assets held	251	30
Collateralized debt obligations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Changes in unrealized gains (losses) included in accumulated other comprehensive income for assets held	0	5,046
States, municipalities, and political subdivisions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Changes in unrealized gains (losses) included in accumulated other comprehensive income for assets held	0	0
Corporates
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Changes in unrealized gains (losses) included in accumulated other comprehensive income for assets held	$ (2,215)	$ (7,000)

- Definition

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.

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