Reinsurance - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Ceded Credit Risk [Line Items]
Reinsurance recoverable on unpaid losses, net	$ 2,026,110	$ 1,996,913
Reinsurance recoverable on paid losses	$ 118,243	101,210
Percentage of reinsurance recoverables on unpaid losses for 3 largest reinsurers	46.20%
Prepaid reinsurance premiums ceded	$ 203,950	$ 296,635
Percentage of prepaid reinsurance premiums ceded for 3 largest reinsurers	29.40%
Largest reinsurer one
Ceded Credit Risk [Line Items]
Reinsurance recoverable on unpaid losses, net	$ 401,100
Prepaid reinsurance premiums ceded	24,000
Largest reinsurer two
Ceded Credit Risk [Line Items]
Reinsurance recoverable on unpaid losses, net	341,500
Prepaid reinsurance premiums ceded	20,200
Largest reinsurer three
Ceded Credit Risk [Line Items]
Reinsurance recoverable on unpaid losses, net	194,200
Prepaid reinsurance premiums ceded	$ 15,700