Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Revenue	$ 292,689	$ 254,190	$ 270,288
Cost of revenues	44,261	35,144	27,683
Gross profit	248,428	219,046	242,605
Operating costs and expenses:
Research and development	99,363	80,764	69,971
Sales and marketing	179,902	169,898	168,309
General and administrative	47,578	44,371	33,460
Total operating expenses	326,843	295,033	271,740
Operating loss	(78,415)	(75,987)	(29,135)
Financial income (expenses), net	(7,483)	(389)	970
Loss before income taxes	(85,898)	(76,376)	(28,165)
Income taxes	(8,112)	(2,388)	(413)
Net loss	$ (94,010)	$ (78,764)	$ (28,578)
Net loss per share of common stock, basic and diluted (in USD per share)	$ (2.99)	$ (2.60)	$ (0.98)
Weighted average number of shares used in computing net loss per share of common stock, basic and diluted (in shares)	31,445,631	30,257,410	29,020,645
Subscriptions
Revenues:
Revenue	$ 161,188	$ 76,730	$ 8,750
Perpetual licenses
Revenues:
Revenue	1,473	42,093	139,578
Maintenance and services
Revenues:
Revenue	$ 130,028	$ 135,367	$ 121,960