CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Software subscriptions	$ 79,978	$ 59,951
Other	6,560	5,367
Total revenues	86,538	65,318
Cost of revenues
Software subscriptions	16,723	15,914
Other	5,017	4,633
Total cost of revenues	21,740	20,547
Gross profit	64,798	44,771
Operating expenses
Research and development	14,926	11,840
Sales and marketing	41,828	31,969
General and administrative	14,024	10,531
Total operating expenses	70,778	54,340
Loss from operations	(5,980)	(9,569)
Other income (expense), net
Interest expense	(216)	(403)
Other income (expense), net	(367)	(556)
Other income (expense), net	(583)	(959)
Loss before provision for income taxes	(6,563)	(10,528)
Provision for income taxes	50	83
Net loss	$ (6,613)	$ (10,611)
Net loss per common share
Basic and diluted	$ (0.09)	$ (0.15)
Weighted-average number of shares used in computing net loss per share:
Basic and diluted	72,114	68,764