v3.26.1
Summary of Estimated Fair Values of Bonds Held on Deposit (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]    
Estimated Fair Value [1] $ 126,535 $ 125,675
On Deposit With Governmental Authorities    
Schedule Of Available For Sale Securities [Line Items]    
Estimated Fair Value 19,812 19,919
Held in trust pursuant to assumed reinsurance contracts    
Schedule Of Available For Sale Securities [Line Items]    
Estimated Fair Value $ 106,723 $ 105,756
[1] Includes cash and cash equivalents of $3.8 million and $5.8 million at March 31, 2026 and December 31, 2025, respectively, with the remainder related to bonds available for sale.