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Acquisitions Fair Value Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value adjustment	$ (575)	$ (1,542)
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		(1,225)
Balance as of September 30, 2018	$ 4,400	$ 4,400

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Business Combination, Contingent Consideration Arrangements, Change in Fair Value of Contingent Consideration, Liability

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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