v3.26.3
Reserve for Losses and Loss Adjustment Expenses - Narrative (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2024
loan
Ceded Credit Risk [Line Items]      
Incurred claims and claim adjustment expenses $ 55,818 $ 35,376  
Favorable prior year development 84,013 66,183  
Reserve for losses and LAE, for prior years $ 250,800 $ 190,600  
Number of loans increased in default | loan     3,620
Secured Debt      
Ceded Credit Risk [Line Items]      
Debt instrument, term 30 years    
Debt instrument, interest rate, stated percentage 7.30%    
Hurricane      
Ceded Credit Risk [Line Items]      
Number of loans increased in default | loan     2,119