Schedule of Net Periodic Pension and Postretirement Cost (Income) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure
Net actuarial loss (gain)	$ 2,703	$ (25,584)	$ (2,217)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Amortization of Intangible Assets
UNITED STATES
Defined Benefit Plan Disclosure
Service cost	$ 1,063	1,588	1,784
Interest cost	6,888	4,886	4,427
Expected return on plan assets	(5,194)	(2,927)	(3,858)
Net actuarial loss (gain)	18	(11,170)	643
Settlement (gain) loss	(209)		(204)
Total net periodic pension cost (income)	2,566	(7,623)	2,792
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure
Service cost	446	784	941
Interest cost	1,057	482	337
Expected return on plan assets	(45)	(75)	(67)
Net actuarial loss (gain)	2,735	(13,259)	(2,223)
Settlement (gain) loss	5
Total net periodic pension cost (income)	4,198	(12,068)	(1,012)
Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Service cost	34	64	64
Interest cost	299	177	170
Amortization of prior service cost	(9)	(9)	(9)
Net actuarial loss (gain)	155	(1,155)	(433)
Special termination benefits	2,513	0
Total net periodic pension cost (income)	2,992	(923)	(208)
Prior service cost	9	9	9
Total recognized in other comprehensive income	9	9	9
Total recognized in net periodic pension cost (income) and other comprehensive income	$ 3,001	$ (914)	$ (199)