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Defined Benefit Plans - Net Periodic Cost (Benefit) (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Retirement Benefits [Abstract]    
Expected return on plan assets, net of expenses $ (2,342) $ (2,411)
Interest cost on projected benefit obligation 1,655 1,662
Net amortization and deferral 310 418
Net periodic expense (benefit) $ (377) $ (331)