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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, 2016
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Beginning balance $ 3,750
Net decrease in fair value upon remeasurement (313)
Foreign currency impact on contingent consideration 105
Ending balance $ 3,542