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Employee Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic benefit cost
Components of net periodic benefit cost were as follows:
 
Three months ended June 30,
 
Six months ended June 30,
 
2014
 
2013
 
2014
 
2013
 
(In thousands)
Pension Benefits
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
Service cost
$
3,171

 
3,756

 
$
6,594

 
8,008

Interest cost
25,135

 
22,316

 
50,696

 
44,735

Expected return on plan assets
(29,284
)
 
(26,389
)
 
(58,002
)
 
(52,837
)
Amortization of:
 
 
 
 
 
 
 
Net actuarial loss
5,579

 
8,685

 
11,814

 
17,565

Prior service credit
(435
)
 
(443
)
 
(893
)
 
(909
)
 
4,166

 
7,925

 
10,209

 
16,562

Union-administered plans
2,123

 
2,046

 
4,214

 
4,030

Net periodic benefit cost
$
6,289

 
9,971

 
$
14,423

 
20,592

 
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
U.S.
$
4,499

 
8,152

 
$
10,786

 
16,893

Non-U.S.
(333
)
 
(227
)
 
(577
)
 
(331
)
 
4,166

 
7,925

 
10,209

 
16,562

Union-administered plans
2,123

 
2,046

 
4,214

 
4,030

 
$
6,289

 
9,971

 
$
14,423

 
20,592

 
 
 
 
 
 
 
 
Postretirement Benefits
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
Service cost
$
89

 
230

 
$
224

 
493

Interest cost
348

 
392

 
713

 
787

Amortization of:
 
 
 
 
 
 
 
Net actuarial credit
(234
)
 
(5
)
 
(363
)
 
(7
)
Prior service credit
(615
)
 
(57
)
 
(1,230
)
 
(115
)
Net periodic benefit cost
$
(412
)
 
560

 
$
(656
)
 
1,158

Company-administered plans:
 
 
 
 
 
 
 
U.S.
$
(524
)
 
402

 
$
(921
)
 
808

Non-U.S.
112

 
158

 
265

 
350

 
$
(412
)
 
560

 
$
(656
)
 
1,158