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Retirement Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Components of the net periodic (benefit) cost
The components of the net periodic (benefit) cost for the three months ended March 31, 2016 and 2015 were as follows:
 
 
Three Months Ended
 
 
March 31
 
 
Pension Benefits
 
Postretirement
 
 
U.S. Plans
 
Non-U.S. Plans
 
Medical Benefits
 
 
2016
 
2015
 
2016
 
2015
 
2016
 
2015
Service cost
 
$
80

 
$
106

 
$
36

 
$
36

 
$
24

 
$
31

Interest cost
 
415

 
432

 
105

 
123

 
99

 
109

Expected return on plan assets
 
(597
)
 
(652
)
 
(97
)
 
(144
)
 

 

Amortization of net actuarial loss
 
9

 
226

 

 

 

 

Amortization of prior service cost
 
11

 
11

 
32

 
65

 

 
35

Foreign currency
 

 

 
40

 
(83
)
 

 

Net periodic (benefit) cost
 
$
(82
)
 
$
123

 
$
116

 
$
(3
)
 
$
123

 
$
175