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Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Roll Forward]    
Goodwill, beginning balance $ 148,845 $ 128,728
Goodwill acquired 2,246 26,063
Foreign currency translation adjustments 5,665 (5,946)
Goodwill, ending balance $ 156,756 $ 148,845