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Employee Benefit Plans (Tables)
 9 Months Ended
Sep. 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 September 30,
 
Nine months ended September 30,
 
2014
 
2013
 
2014
 
2013
 
(In thousands)
Pension Benefits
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
Service cost
$
3,297

 
3,994

 
$
9,892

 
12,002

Interest cost
25,280

 
22,418

 
75,990

 
67,153

Expected return on plan assets
(28,900
)
 
(26,498
)
 
(86,916
)
 
(79,335
)
Amortization of:
 
 
 
 
 
 
 
Net actuarial loss
5,900

 
8,782

 
17,714

 
26,347

Prior service credit
(445
)
 
(454
)
 
(1,340
)
 
(1,363
)
 
5,132

 
8,242

 
15,340

 
24,804

Union-administered plans
3,475

 
3,388

 
7,744

 
7,418

Net periodic benefit cost
$
8,607

 
11,630

 
$
23,084

 
32,222

 
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
U.S.
$
5,389

 
8,424

 
$
16,190

 
25,317

Non-U.S.
(257
)
 
(182
)
 
(850
)
 
(513
)
 
5,132

 
8,242

 
15,340

 
24,804

Union-administered plans
3,475

 
3,388

 
7,744

 
7,418

 
$
8,607

 
11,630

 
$
23,084

 
32,222

 
 
 
 
 
 
 
 
Postretirement Benefits
 
 
 
 
 
 
 
Company-administered plans:
 
 
 
 
 
 
 
Service cost
$
112

 
245

 
$
336

 
738

Interest cost
356

 
392

 
1,069

 
1,179

Amortization of:
 
 
 
 
 
 
 
Net actuarial credit
(181
)
 
(4
)
 
(544
)
 
(11
)
Prior service credit
(616
)
 
(58
)
 
(1,844
)
 
(173
)
Net periodic benefit cost
$
(329
)
 
575

 
$
(983
)
 
1,733

Company-administered plans:
 
 
 
 
 
 
 
U.S.
$
(460
)
 
402

 
$
(1,379
)
 
1,210

Non-U.S.
131

 
173

 
396

 
523

 
$
(329
)
 
575

 
$
(983
)
 
1,733