Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Products	$ 35,279	$ 25,942
Maintenance and support	10,753	10,802
Professional services	8,483	8,501
Total revenue	54,515	45,245
Cost of revenue:
Products	8,436	4,710
Maintenance and support	1,849	1,878
Professional services	6,309	5,676
Total cost of revenue	16,594	12,264
Total gross profit	37,921	32,981
Operating expenses:
Research and development	16,722	11,393
Sales and marketing	29,052	24,810
General and administrative	8,732	7,248
Total operating expenses	54,506	43,451
Loss from operations	(16,585)	(10,470)
Other income (expense), net:
Interest income (expense), net	241	169
Other income (expense), net	78	(115)
Loss before income taxes	(16,266)	(10,416)
Provision for income taxes	95	129
Net loss	$ (16,361)	$ (10,545)
Net loss per share, basic and diluted (in dollars per share)	$ (0.36)	$ (0.25)
Weighted-average common shares outstanding, basic and diluted	45,210,250	42,016,831