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Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2017
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income
 
 
Foreign Currency Translation Adjustments
 
Unrealized Gains (Losses) on Cash Flow Hedges
 
Total
 
 
(in thousands)
Balance at December 31, 2016
 
$
(2,395
)
 
$
(1,271
)
 
$
(3,666
)
Other comprehensive income (loss)
 
686

 
(216
)
 
470

Balance at March 31, 2017
 
$
(1,709
)
 
$
(1,487
)
 
$
(3,196
)