Premiums and Reinsurance Related Information - Schedule of Reinsurance Effects on Written and Earned Premiums and Losses and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Written Premiums
Assumed	$ 862,806	$ 695,717	$ 507,688
Ceded	(304,619)	(244,295)	(173,016)
Net written premiums	558,187	451,422	334,672
Earned Premiums
Assumed	757,042	593,571	394,727
Ceded	(265,365)	(208,460)	(130,825)
Net earned premiums	491,677	385,111	263,902
Losses and Loss Adjustment Expenses
Assumed	499,753	371,349	242,306
Ceded	(171,731)	(123,250)	(76,024)
Net	$ 328,022	$ 248,099	$ 166,282