Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net revenue:
Products and license	$ 20,841	$ 17,104
Services	38,932	27,653
Total net revenue	59,773	44,757
Cost of revenue:
Products and license	2,184	1,998
Services	10,784	8,332
Total cost of revenue	12,968	10,330
Gross profit	46,805	34,427
Operating expenses:
Research and development	16,019	12,678
Sales and marketing	40,740	31,253
General and administrative	13,886	9,743
Amortization of acquired intangible assets	352	352
Total operating expenses	70,997	54,026
Loss from operations	(24,192)	(19,599)
Other income (expense), net	83	(80)
Loss before (benefit) provision for income taxes	(24,109)	(19,679)
(Benefit) provision for income taxes	(102)	351
Net loss	$ (24,007)	$ (20,030)
Net loss per share of common stock stockholders, basic and diluted	$ (0.75)	$ (0.74)
Shares used in computing net loss per share of common stock, basic and diluted	31,843	26,973