XML 72 R61.htm IDEA: XBRL DOCUMENT v3.21.2
Retirement and Pension Plans - Components of Net Periodic Pension Benefit Expense (Income) (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Defined benefit plans:        
Service cost $ 2,009 $ 1,979 $ 6,060 $ 5,858
Interest cost 4,563 5,657 13,711 16,893
Expected return on plan assets (14,172) (13,681) (42,567) (40,889)
Amortization of net actuarial loss and other 7,550 4,008 16,282 11,915
Pension income (50) (2,037) (6,514) (6,223)
Other plans:        
Defined contribution plans 7,792 7,068 24,208 23,975
Foreign plans and other 2,074 1,934 6,431 5,807
Total other plans 9,866 9,002 30,639 29,782
Total net pension expense $ 9,816 $ 6,965 $ 24,125 $ 23,559