Intangible Assets Schedule of Acquired Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 4,827	$ 1,453
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years 10 months 20 days
Core Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 4,378
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 1 day
Customer Contracts And Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 337
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 1 day
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 56
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years 1 day
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 56
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years 1 day