Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue	$ 68,335	$ 55,239	$ 189,278	$ 153,293
Cost of revenue	21,290	16,138	59,894	44,721
Gross profit	47,045	39,101	129,384	108,572
Operating expenses:
Sales and marketing	32,313	25,641	92,119	73,670
Research and development	21,800	15,601	61,688	45,110
General and administrative	13,511	9,815	38,167	26,306
Total operating expenses	67,624	51,057	191,974	145,086
Loss from operations	(20,579)	(11,956)	(62,590)	(36,514)
Other income (expense):
Interest income	309	761	1,232	1,528
Interest expense		(25)	(11)	(54)
Other expense	(495)	(177)	(748)	(531)
Total other income (expense), net	(186)	559	473	943
Loss before income taxes	(20,765)	(11,397)	(62,117)	(35,571)
Income tax benefit (expense)	(158)	(75)	4,303	(307)
Net loss	$ (20,923)	$ (11,472)	$ (57,814)	$ (35,878)
Net loss per common share, basic and diluted	$ (0.56)	$ (0.33)	$ (1.58)	$ (1.06)
Weighted average common shares used in computing basic and diluted net loss per common share	37,250	34,895	36,585	33,934
Subscription and Support
Revenue	$ 61,863	$ 49,235	$ 172,351	$ 137,539
Cost of revenue	16,567	12,149	46,270	33,324
Professional Services and Other
Revenue	6,472	6,004	16,927	15,754
Cost of revenue	$ 4,723	$ 3,989	$ 13,624	$ 11,397