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Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Liabilities (Details) - Contingent Consideration
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Beginning balance $ 998
Net change in fair value upon remeasurement 25
Foreign currency impact on contingent consideration (48)
Ending balance $ 975