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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Statement of Comprehensive Income [Abstract]    
Net income $ 5,296 $ 4,854
Other comprehensive income:    
Change in foreign currency translation adjustment (1,018) 150
Cash flow hedges:    
Change in net unrealized gains (1,440) 1,524
Amounts reclassified from AOCI 262 156
Net change (1,178) 1,680
Other comprehensive income (loss), net (2,196) 1,830
Total of comprehensive income $ 3,100 $ 6,684