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Pensions and Other Post-retirement Benefits
 3 Months Ended
Mar. 31, 2019
Retirement Benefits [Abstract]  
Pensions and Other Post-retirement Benefits
Pensions and Other Post-retirement Benefits
Components of net periodic benefit cost consisted of the following:
 
 
Pension Benefits
 
Other Benefits
(In thousands)
 
2019
 
2018
 
2019
 
2018
Three Months Ended March 31,
 
 
 
 
 
 
 
 
Service cost
 
$
2,423

 
$
2,891

 
$
89

 
$
101

Interest cost
 
4,705

 
4,219

 
249

 
221

Expected return on plan assets
 
(9,653
)
 
(9,096
)
 
—

 
—

Amortization of prior service credit
 
(4
)
 
(6
)
 
(101
)
 
(77
)
Recognized net actuarial losses
 
2,577

 
3,453

 
217

 
25

Settlement/curtailment loss (credit)
 
—

 
27

 
—

 
(141
)
Net periodic benefit cost(a)
 
48

 
1,488

 
454

 
129


(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.
We made contributions of $1.8 million and $1.2 million to our pension plans during the three months ended March 31, 2019 and 2018, respectively. We expect to make total contributions of approximately $7.1 million to our pension plans in 2019 which are primarily associated with our International segment.