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Goodwill and Intangible Assets - Intangible Assets Changes in Carrying Amount (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2020
USD ($)
Finite-lived Intangible Assets [Roll Forward]  
Beginning balance $ 4,943
Amortization expense (740)
Intangible assets acquired in asset acquisition 58
Foreign currency translation adjustment (123)
Ending balance $ 4,138