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Other (Income) Expense, Net (Tables)
 12 Months Ended
Dec. 31, 2017
Other Income and Expenses [Abstract]  
Other (Income) Expense, Net
Other (income) expense, net, consisted of:
Years Ended December 31
2017
 
2016
 
2015
Interest income
$
(385
)
 
$
(328
)
 
$
(289
)
Interest expense
754

 
693

 
672

Exchange (gains) losses
(11
)
 
174

 
1,277

Equity income from affiliates
(42
)
 
(86
)
 
(205
)
Other, net
(304
)
 
267

 
72

 
$
12

 
$
720

 
$
1,527