v3.26.1
Investments (Limited Partnership Investments) - Additional Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Schedule Of Investments [Line Items]      
Net income loss from limited partnership interests $ (399) $ (658)  
Limited Partnership [Member]      
Schedule Of Investments [Line Items]      
Company's net cumulative contributed capital to the partnership 17,800   $ 18,697
Maximum exposure loss relating to VIE $ 16,394   $ 17,690