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Pensions and Other Post-retirement Benefits (Tables)
6 Months Ended
Jun. 30, 2021
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost
Components of net periodic benefit cost consisted of the following:
 Pension BenefitsOther Benefits
(In thousands)2021202020212020
Three Months Ended June 30,
Service cost$3,242 $3,011 $99 $99 
Interest cost2,817 3,726 116 179 
Expected return on plan assets(9,147)(8,503)— — 
Amortization of prior service cost (credit)66 46 (90)(98)
Recognized net actuarial losses4,421 3,935 399 286 
Net periodic benefit cost (a)
$1,399 $2,215 $524 $466 
Six Months Ended June 30,
Service cost$6,484 $6,022 $198 $198 
Interest cost5,634 7,452 232 358 
Expected return on plan assets(18,294)(17,006)— — 
Amortization of prior service cost (credit)132 92 (180)(196)
Recognized net actuarial losses8,842 7,870 798 572 
Settlements(1,879)— 

— — 
Net periodic benefit cost(a)
$919 $4,430 $1,048 $932 
(a) Components of net periodic benefit cost other than service cost are included in the line item Other income, net in the unaudited Condensed Consolidated Statements of Income.