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Goodwill - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Goodwill [Roll Forward]    
Beginning balance $ 20,079 $ 19,614
Adjustment to original acquisition allocation (12) (17)
Impact of foreign exchange 515 (483)
Ending balance $ 20,582 $ 19,114