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Other Income
 9 Months Ended
Sep. 30, 2016
Other Income and Expenses [Abstract]  
Other Income (Expense)
Other Income (Expense)

Items included in other income (expense) in the Condensed Consolidated Statements of Operations are as follows:
 
Three months ended September 30,
 
Nine months ended September 30,
(dollars in thousands)
2016
 
2015
 
2016
 
2015
Gain (loss) on currency transactions
$
348

 
$
(55
)
 
$
(376
)
 
$
1,407

Hedge ineffectiveness
11

 
(42
)
 
1,150

 
125

Other non-operating income (expense)
(111
)
 
(299
)
 
261

 
(255
)
Other income (expense)
$
248

 
$
(396
)
 
$
1,035

 
$
1,277