Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Total revenue	$ 105,075	$ 83,155	$ 298,327	$ 235,299
Cost of revenue:
Total cost of revenue	31,028	23,630	87,823	65,784
Total gross profit	74,047	59,525	210,504	169,515
Operating expenses:
Research and development	28,509	20,154	78,831	57,645
Sales and marketing	48,448	39,904	141,552	113,214
General and administrative	15,006	11,223	43,589	32,336
Total operating expenses	91,963	71,281	263,972	203,195
Loss from operations	(17,916)	(11,756)	(53,468)	(33,680)
Other income (expense), net:
Interest income	87	1,448	1,343	4,761
Interest expense	(7,328)	(3,399)	(16,707)	(9,940)
Other income (expense), net	143	(492)	(94)	(727)
Loss before income taxes	(25,014)	(14,199)	(68,926)	(39,586)
Provision for (benefit from) income taxes	527	207	1,005	(87)
Net loss	$ (25,541)	$ (14,406)	$ (69,931)	$ (39,499)
Net loss per share, basic and diluted (in dollars per share)	$ (0.50)	$ (0.29)	$ (1.38)	$ (0.82)
Weighted-average common shares outstanding, basic and diluted (in shares)	51,293,210	49,020,449	50,707,553	48,437,686
Products
Revenue:
Total revenue	$ 98,559	$ 76,476	$ 278,538	$ 214,900
Cost of revenue:
Total cost of revenue	25,196	17,703	69,569	48,709
Professional services
Revenue:
Total revenue	6,516	6,679	19,789	20,399
Cost of revenue:
Total cost of revenue	$ 5,832	$ 5,927	$ 18,254	$ 17,075