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Fair Value Measurements - Reconciliation of Level 3 Liabilities (Details) - Unobservable  Inputs (Level 3)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Contingent consideration, December 31, 2020 $ 4,633
Change in the estimated fair value of the contingent consideration 263
Contingent consideration, June 30, 2021 $ 4,896