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Pensions and Other Postretirement Benefits
 6 Months Ended
Jun. 30, 2016
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)
 
2016
 
2015
 
2016
 
2015
Three Months Ended June 30,
 
 
 
 
 
 
 
 
Service cost
 
$
2,634

 
$
2,904

 
$
106

 
$
111

Interest cost
 
4,702

 
4,593

 
237

 
216

Expected return on plan assets
 
(8,682
)
 
(8,537
)
 
—

 
—

Amortization of prior service cost
 
15

 
17

 
(105
)
 
(84
)
Recognized net actuarial losses
 
3,009

 
4,083

 
17

 
7

Settlements
 
20

 
33

 
—

 
—

Net periodic benefit cost
 
$
1,698

 
$
3,093

 
$
255

 
$
250

 
 
 
 
 
 
 
 
 
Six Months Ended June 30,
 
 
 
 
 
 
 
 
Service cost
 
$
5,268

 
$
5,808

 
$
212

 
$
222

Interest cost
 
9,404

 
9,186

 
474

 
432

Expected return on plan assets
 
(17,364
)
 
(17,074
)
 
—

 
—

Amortization of prior service cost
 
30

 
34

 
(210
)
 
(168
)
Recognized net actuarial losses
 
6,018

 
8,012

 
34

 
14

Settlements
 
40

 
66

 
—

 
—

Net periodic benefit cost
 
$
3,396

 
$
6,032

 
$
510

 
$
500


We made contributions of $3.1 million to our pension plans during the six months ended June 30, 2016. We expect to make total contributions of approximately $6.2 million to our pension plans in 2016 which are primarily associated with our International segment.