Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenue	$ 59,621	$ 62,190	$ 115,981	$ 115,718
Cost of revenues	8,398	6,440	16,724	12,882
Gross profit	51,223	55,750	99,257	102,836
Operating costs and expenses:
Research and development	19,722	17,717	38,490	33,259
Sales and marketing	41,656	41,349	83,652	81,321
General and administrative	13,851	7,989	23,122	15,058
Total operating expenses	75,229	67,055	145,264	129,638
Operating loss	(24,006)	(11,305)	(46,007)	(26,802)
Financial income (expenses), net	65	(811)	(63)	167
Loss before income taxes	(23,941)	(12,116)	(46,070)	(26,635)
Income taxes	(547)	(567)	(1,057)	(1,094)
Net loss	$ (24,488)	$ (12,683)	$ (47,127)	$ (27,729)
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (0.81)	$ (0.44)	$ (1.57)	$ (0.97)
Weighted average number of shares used in computing net loss per share of common stock, basic and diluted (in shares)	30,284,421	28,920,314	30,058,593	28,643,542
Perpetual licenses
Revenues:
Revenue	$ 11,514	$ 32,270	$ 27,035	$ 56,356
Subscriptions
Revenues:
Revenue	14,837	1,291	21,842	2,362
Maintenance and services
Revenues:
Revenue	$ 33,270	$ 28,629	$ 67,104	$ 57,000