Business Combination Schedule of Intangible Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jan. 08, 2014
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years	2 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years	7 years
Maintenance relationship [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years	8 years
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years	7 years
Cameleon Acquistion [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 18,653
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets				$ 18,653
Cameleon Acquistion [Member] | Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 1,020
Finite-Lived Intangible Asset, Useful Life			8 years
Cameleon Acquistion [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 1,455
Cameleon Acquistion [Member] | Maintenance relationship [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 3,808
Finite-Lived Intangible Asset, Useful Life			8 years
Cameleon Acquistion [Member] | Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 11,147
Finite-Lived Intangible Asset, Useful Life			7 years
Cameleon Acquistion [Member] | Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired			$ 1,223
Finite-Lived Intangible Asset, Useful Life			2 years
Minimum [Member] | Cameleon Acquistion [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			2 years
Maximum [Member] | Cameleon Acquistion [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			5 years