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Acquisitions Fair Value Reconciliation (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2019 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Fair value adjustment | $ (967)
Quickthree Technology LLC | Contingent Consideration |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Balance as of January 1, 2018 | 7,167
Payment of contingent consideration | (700)
Balance as of September 30, 2018 | $ 5,500

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