v3.26.1
Summarized Activity in Liability for Unpaid Losses and Loss Adjustment Expenses (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Insurance [Abstract]    
Balance at beginning of period $ 750,191 $ 800,391
Less: ceded reinsurance receivables 60,898 60,754
Net balance at beginning of period 689,293 739,637
Net losses and loss adjustment expenses related to:    
Current year 53,861 66,735
Prior years (0) 3
Total net losses and loss adjustment expenses 53,861 66,738
Paid net losses and loss adjustment expenses related to:    
Current year 10,491 17,991
Prior years 48,309 56,267
Total paid net losses and loss adjustment expenses 58,800 74,258
Net balance at end of period 684,354 732,117
Plus: ceded reinsurance receivables 62,789 62,731
Balance at end of period $ 747,143 $ 794,848