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Retirement and Pension Plans
 9 Months Ended
Sep. 30, 2020
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
September 30,		Nine Months Ended
September 30,
2020201920202019
(In thousands)
Defined benefit plans:
Service cost$1,979 $1,678 $5,858 $5,093 
Interest cost5,657 6,677 16,893 20,179 
Expected return on plan assets(13,681)(13,061)(40,889)(39,272)
Amortization of net actuarial loss and other4,008 3,902 11,915 11,838 
Pension income(2,037)(804)(6,223)(2,162)
Other plans:
Defined contribution plans7,068 7,614 23,975 24,876 
Foreign plans and other1,934 3,816 5,807 6,921 
Total other plans9,002 11,430 29,782 31,797 
Total net pension expense$6,965 $10,626 $23,559 $29,635 
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 nine months ended September 30, 2020 and 2019, contributions to the Company’s defined benefit pension plans were $5.1 million and $2.5 million, respectively. The Company’s current estimate of 2020 contributions to its worldwide defined benefit pension plans is in line with the range disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.