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Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Business Combination and Asset Acquisition [Abstract]        
Due diligence, professional fees and other transaction costs $ 0 $ 0 $ 34 $ 0
Adjustments to fair value of contingent consideration liabilities 246 709 1,034 186
Acquisition-related expense, net $ 246 $ 709 $ 1,068 $ 186