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Pensions and Other Postretirement Benefits
 3 Months Ended
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Pensions and Other Postretirement Benefits
Pensions and Other Postretirement Benefits
Components of net periodic benefit cost consisted of the following:
 
 
Pension Benefits
 
Other Benefits
(In thousands)
 
2015
 
2014
 
2015
 
2014
Three Months Ended March 31,
 
 
 
 
 
 
 
 
Service cost
 
$
2,904

 
$
2,481

 
$
111

 
$
156

Interest cost
 
4,593

 
4,891

 
216

 
299

Expected return on plan assets
 
(8,537
)
 
(8,251
)
 
—

 
—

Amortization of prior service cost
 
17

 
21

 
(84
)
 
(84
)
Recognized net actuarial losses
 
3,929

 
2,203

 
7

 
83

Settlements
 
33

 
57

 
—

 
—

Net periodic benefit cost
 
2,939

 
1,402

 
250

 
454


We made contributions of $1.0 million to our pension plans during the three months ended March 31, 2015. We expect to make total contributions of approximately $4.1 million to our pension plans in 2015.