v3.25.2
Investments - Summary of Sales of Available-for-sale Fixed-Maturity Securities (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Schedule of Available-for-sale Securities [Line Items]        
Proceeds     $ 3,359 $ 7,646
Fixed-Maturity Securities [Member]        
Schedule of Available-for-sale Securities [Line Items]        
Proceeds $ 749 $ 1,616 3,359 7,646
Gross Realized Gains 14 1 38 13
Gross Realized Losses $ 0 $ (11) $ (4) $ (55)