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Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Goodwill [Roll Forward]    
Beginning balance $ 6,670 $ 9,402
Measurement period adjustment 0 (2,807)
Foreign currency translation (579) $ 75
Ending balance $ 6,091