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Retirement and Pension Plans (Tables)
9 Months Ended
Sep. 30, 2023
Retirement Benefits [Abstract]  
Components of Net Periodic Pension Benefit Expense (Income)
The components of net periodic pension benefit expense (income) were as follows:
Three Months Ended
September 30,
Nine Months Ended
September 30,
2023202220232022
(In thousands)
Defined benefit plans:
Service cost$751 $1,290 $2,240 $3,995 
Interest cost7,588 4,949 22,655 15,101 
Expected return on plan assets(13,100)(14,812)(39,167)(45,113)
Amortization of net actuarial loss and other2,851 2,074 8,514 6,371 
Pension income(1,910)(6,499)(5,758)(19,646)
Other plans:
Defined contribution plans9,908 9,217 33,936 32,289 
Foreign plans and other2,011 2,027 6,581 6,422 
Total other plans11,919 11,244 40,517 38,711 
Total net pension expense$10,009 $4,745 $34,759 $19,065