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Retirement and Pension Plans
 6 Months Ended
Jun. 30, 2024
Retirement Benefits [Abstract]  
Retirement and Pension Plans Retirement and Pension Plans
The components of net periodic pension benefit expense (income) were as follows:
Three Months Ended
June 30,		Six Months Ended
June 30,
2024202320242023
(In thousands)
Defined benefit plans:
Service cost$727 $749 $1,457 $1,489 
Interest cost6,978 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 other2,333 2,842 4,670 5,663 
Pension income(3,581)(1,914)(7,157)(3,848)
Other plans:
Defined contribution plans10,985 10,512 25,580 24,028 
Foreign plans and other2,287 1,999 3,976 4,570 
Total other plans13,272 12,511 29,556 28,598 
Total net pension expense$9,691 $10,597 $22,399 $24,750 
For defined benefit plans, the net periodic benefit income, other than the service cost component, is included in “Other (expense) income, net” in the consolidated statement of income.
For the six months ended June 30, 2024 and 2023, contributions to the Company’s defined benefit pension plans were $2.9 million and $2.9 million, respectively. The Company’s current estimate of 2024 contributions to its worldwide defined benefit pension plans is in line with the range disclosed in Note 12 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.