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Contingent Consideration - Fair Value Reconciliation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value adjustment $ (1,020) $ (967)
Quickthree Technology LLC | Contingent Consideration    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance as of December 31, 2019 1,900  
Payment of contingent consideration (280)  
Fair value adjustment (1,020)  
Balance as of March 31, 2020 $ 600