Pension and Postretirement Benefits other than Pensions - Net Periodic Benefit Cost of Defined Benefit Plans and Other Postretirement Benefit Plans (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
UNITED STATES | Pension Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	126	2,314	2,071	6,942
Expected return on plan assets	0	(2,113)	(1,647)	(6,339)
Amortization of prior service cost credit and recognized actuarial gain (loss)	36	778	627	2,334
Pension settlement credit	(2,216)	0	44,571	0
Net periodic benefit (income) cost	(2,054)	979	45,622	2,937
UNITED STATES | Other Postretirement Benefits Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	6	13	18	39
Interest cost	142	205	426	615
Amortization of prior service cost credit and recognized actuarial gain (loss)	(730)	(609)	(2,190)	(1,827)
Net periodic benefit (income) cost	(582)	(391)	(1,746)	(1,173)
Non-U.S. | Pension Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	585	548	1,774	1,626
Interest cost	1,202	1,318	3,613	3,928
Expected return on plan assets	(332)	(309)	(998)	(924)
Amortization of prior service cost credit and recognized actuarial gain (loss)	53	6	159	18
Pension settlement credit	0	0	0	0
Net periodic benefit (income) cost	1,508	1,563	4,548	4,648
Non-U.S. | Other Postretirement Benefits Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Service cost	45	37	134	112
Interest cost	192	198	577	593
Amortization of prior service cost credit and recognized actuarial gain (loss)	3	(21)	10	(63)
Net periodic benefit (income) cost	$ 240	$ 214	$ 721	$ 642