Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Licenses	$ 71,273	$ 58,420	$ 43,488
Maintenance and services	55,937	42,928	31,128
Total revenues	127,210	101,348	74,616
Cost of revenues	12,019	9,911	6,476
Gross profit	115,191	91,437	68,140
Operating costs and expenses:
Research and development	31,792	28,086	20,973
Sales and marketing	86,367	68,787	44,131
General and administrative	16,106	11,872	8,881
Total operating expenses	134,265	108,745	73,985
Operating loss	(19,074)	(17,308)	(5,845)
Financial expenses, net	(1,523)	(1,714)	(1,274)
Loss before income taxes	(20,597)	(19,022)	(7,119)
Income taxes	(686)	(376)	(356)
Net loss	$ (21,283)	$ (19,398)	$ (7,475)
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (0.84)	$ (0.91)	$ (1.93)
Weighted average number of shares used in computing net loss per share of common stock, basic and diluted (in shares)	25,198,546	21,242,313	3,880,761