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Fair Value Measurements (Reconciliation of Level 3 Financial Liabilities Measured on Recurring Basis) (Details) - Level 3
$ in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance as of January 1, 2021 $ 9,094
Contingent consideration 6,600
Total fair value adjustments reported in earnings (567)
Contingent consideration payments (5,831)
Balance as of September 30, 2021 $ 9,296