v3.25.1
Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total before tax $ (13) $ 25
Income tax expense (benefit) (1,105) 2,899
Unrealized Gains and Losses on Available for Sale Securities    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total before tax (13) 25
Reclassification out of Accumulated Other Comprehensive Income    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total reclassifications, net of tax (10) 22
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains and Losses on Available for Sale Securities    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Other net realized investment (gains) losses (13) 25
Income tax expense (benefit) $ 3 $ (3)