Business Combinations - Valuation Methodology (Details) - USD ($) $ in Thousands		12 Months Ended
Dec. 06, 2016	Dec. 31, 2016
Minimum
Fair Value Inputs [Abstract]
Fair value assumptions income approach discount rate		20.00%
Maximum
Fair Value Inputs [Abstract]
Fair value assumptions income approach discount rate		35.00%
CrowdStar
Fair Value Inputs [Abstract]
Deferred revenue	$ 1,500
Deferred revenue recognition period	9 months

The period of time over which deferred revenue acquired in a business combination will be recognized.

No definition available.

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- Definition

Amount of deferred revenue expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

+ Details

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- References

No definition available.

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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- Details

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