Reinsurance - Schedule of Earned Premium (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Premiums written:
Assumed	$ 350,235	$ 175,511
Ceded	(32,889)	(19,860)
Net	317,346	155,651
Premiums earned:
Assumed	254,071	180,933
Ceded	(14,429)	(11,578)
Net	$ 239,642	$ 169,355