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Retirement and Pension Plans (Tables)
3 Months Ended
Mar. 31, 2024
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
March 31,
20242023
(In thousands)
Defined benefit plans:
Service cost$730 $740 
Interest cost6,989 7,501 
Expected return on plan assets(13,632)(12,996)
Amortization of net actuarial loss and other2,337 2,821 
Pension income(3,576)(1,934)
Other plans:
Defined contribution plans14,595 13,516 
Foreign plans and other1,689 2,571 
Total other plans16,284 16,087 
Total net pension expense$12,708 $14,153