Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue	$ 55,239	$ 43,203	$ 153,293	$ 116,220
Cost of revenue	16,138	12,523	44,721	33,258
Gross profit	39,101	30,680	108,572	82,962
Operating expenses:
Sales and marketing	25,641	21,397	73,670	58,596
Research and development	15,601	12,577	45,110	34,816
General and administrative	9,815	8,334	26,306	22,941
Total operating expenses	51,057	42,308	145,086	116,353
Loss from operations	(11,956)	(11,628)	(36,514)	(33,391)
Other income (expense):
Interest income	761	84	1,528	199
Interest expense	(25)		(54)	(18)
Other income (expense), net	(177)	205	(531)	253
Total other income, net	559	289	943	434
Loss before income taxes	(11,397)	(11,339)	(35,571)	(32,957)
Income tax expense	(75)	(132)	(307)	(383)
Net loss	$ (11,472)	$ (11,471)	$ (35,878)	$ (33,340)
Net loss per common share, basic and diluted	$ (0.33)	$ (0.39)	$ (1.06)	$ (1.14)
Weighted average common shares used in computing basic and diluted net loss per common share	34,895	29,535	33,934	29,120
Subscription and Support
Revenue	$ 49,235	$ 38,290	$ 137,539	$ 103,557
Cost of revenue	12,149	9,278	33,324	24,350
Professional Services and Other
Revenue	6,004	4,913	15,754	12,663
Cost of revenue	$ 3,989	$ 3,245	$ 11,397	$ 8,908