v3.25.2
Loss reserves - Activity for the Liability for Loss Reserves (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]    
Gross loss reserves, beginning balance $ 524,715  
Gross loss reserves, ending balance 551,940  
Domestic mortgage insurance    
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]    
Gross loss reserves, beginning balance 520,032 $ 517,515
Reinsurance recoverable, beginning balance 2,909 1,294
Net loss reserves, beginning balance 517,123 516,221
Losses and LAE incurred related to current accident year 144,624 135,053
Losses and LAE incurred related to prior accident years (98,142) (133,232)
Total incurred 46,482 1,821
Losses and LAE paid related to current accident year 142 1,263
Losses and LAE paid related to prior accident years (20,083) (13,943)
Total paid (19,941) (12,680)
Net loss reserves, ending balance 543,664 505,362
Reinsurance recoverable, ending balance 2,646 1,348
Gross loss reserves, ending balance $ 546,310 $ 506,710