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Goodwill and Intangible Assets - Schedule of Goodwill (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning of period $ 55,669
Goodwill acquired 26,695
Foreign currency translation adjustments 751
Goodwill, end of period $ 83,115