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Retirement and Pension Plans - Components of Net Periodic Pension Benefit Expense (Income) (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Defined benefit plans:        
Service cost $ 727 $ 749 $ 1,457 $ 1,489
Interest cost 6,978 7,566 13,967 15,067
Expected return on plan assets (13,619) (13,071) (27,251) (26,067)
Amortization of net actuarial loss and other 2,333 2,842 4,670 5,663
Pension income (3,581) (1,914) (7,157) (3,848)
Other plans:        
Defined contribution plans 10,985 10,512 25,580 24,028
Foreign plans and other 2,287 1,999 3,976 4,570
Total other plans 13,272 12,511 29,556 28,598
Total net pension expense $ 9,691 $ 10,597 $ 22,399 $ 24,750