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Retirement Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Components of Pension and Postretirement Health Care Expense
The components of pension and postretirement health care expense (income) are set forth below:

 
THREE MONTHS ENDED
 
SIX MONTHS ENDED
 
JUNE 30
 
JUNE 30
 
2014
 
2013
 
2014
 
2013
U.S. Pension and Postretirement Health Care
 
 
 
 
 
 
 
Service cost
$
17

 
$
18

 
$
35

 
$
38

Interest cost
695

 
686

 
1,489

 
1,466

Expected return on plan assets
(1,141
)
 
(1,087
)
 
(2,408
)
 
(2,303
)
Amortization of actuarial loss
190

 
651

 
434

 
1,252

Amortization of prior service credit
(17
)
 
(55
)
 
(36
)
 
(100
)
Total
$
(256
)
 
$
213

 
$
(486
)
 
$
353

Non-U.S. Pension
 
 
 
 
 
 
 
Service cost
$
—

 
$
—

 
$
—

 
$
—

Interest cost
50

 
51

 
99

 
101

Expected return on plan assets
(75
)
 
(71
)
 
(149
)
 
(143
)
Amortization of actuarial loss
19

 
31

 
35

 
61

Total
$
(6
)
 
$
11

 
$
(15
)
 
$
19