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Employee Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic benefit cost
Components of net pension expense were as follows:
 
Three months ended September 30,
 
Nine months ended September 30,
 
2016
 
2015
 
2016
 
2015
 
(In thousands)
Pension Benefits
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
Service cost
$
2,660

 
3,612

 
$
9,065

 
10,805

Interest cost
22,754

 
21,777

 
72,086

 
65,712

Expected return on plan assets
(22,601
)
 
(24,697
)
 
(68,353
)
 
(74,618
)
Amortization of:
 
 
 
 
 
 
 
Net actuarial loss
7,324

 
7,665

 
23,889

 
23,137

Prior service cost/(credit)
320

 
(80
)
 
3,060

 
(230
)
 
10,457

 
8,277

 
39,747

 
24,806

Union-administered plans
2,493

 
1,772

 
7,221

 
6,057

Net pension expense
$
12,950

 
10,049

 
$
46,968

 
30,863

 
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
U.S.
$
10,952

 
8,746

 
$
41,389

 
26,237

Non-U.S.
(495
)
 
(469
)
 
(1,642
)
 
(1,431
)
 
10,457

 
8,277

 
39,747

 
24,806

Union-administered plans
2,493

 
1,772

 
7,221

 
6,057

Net pension expense
$
12,950

 
10,049

 
$
46,968

 
30,863