Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Product	$ 33,707	$ 40,237
Subscription and services	134,259	85,133
Total revenue	167,966	125,370
Cost of revenue:
Product	17,133	15,200
Subscription and services	54,297	36,851
Total cost of revenue	71,430	52,051
Total gross profit	96,536	73,319
Operating expenses:
Research and development	85,983	65,605
Sales and marketing	123,028	107,595
General and administrative	42,256	32,607
Restructuring charges	1,670	0
Total operating expenses	252,937	205,807
Operating loss	(156,401)	(132,488)
Interest income	1,465	269
Interest expense	(11,809)	0
Other income (expense), net	815	(768)
Loss before income taxes	(165,930)	(132,987)
Provision for (benefit from) income taxes	(10,030)	977
Net loss attributable to common stockholders	$ (155,900)	$ (133,964)
Net loss per share attributable to common stockholders, basic and diluted (usd per share)	$ (0.98)	$ (0.88)
Weighted average shares used in computing net loss per share attributable to common stockholders, basic and diluted (shares)	158,781	151,651