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Other Income (Expense) (Tables)
 6 Months Ended
Jun. 30, 2015
Other Income and Expenses [Abstract]  
Schedule of Other Nonoperating Income (Expense)
Other Income (Expense)
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Other income (expense)
$
(12
)
 
$
400

 
$
478

 
$
381

Foreign currency gain (loss)
4,360

 
7,164

 
(14,170
)
 
612

 
$
4,348

 
$
7,564

 
$
(13,692
)
 
$
993