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Long-Lived Assets - Summary of Changes in Carrying Amount of Goodwill (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2020
USD ($)
Goodwill RollForward  
Beginning balance $ 259,164
Tekzenit, Inc. acquisition 9,083
Adjustments related to prior acquisitions (45)
Effects of changes in foreign currency exchange rates (1,566)
Ending balance $ 266,636