Defined Benefit Plans - Net Periodic Cost (Benefit) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Retirement Benefits [Abstract]
Expected return on plan assets, net of expenses	$ (2,411)	$ (2,740)
Interest cost on projected benefit obligation	1,662	1,746
Net amortization and deferral	418	870
Net periodic expense (benefit)	$ (331)	$ (124)