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Goodwill (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Goodwill [Roll Forward]    
Beginning balance $ 20,923 $ 20,079
Adjustment to original acquisition allocation 0 2
Impact of foreign exchange (773) 713
Ending balance $ 20,150 $ 20,794