Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Revenue	$ 364,868	$ 233,139
Cost of revenue	171,333	107,089
Gross profit	193,535	126,050
Operating expenses:
Research and development	114,339	77,855
Sales and marketing	116,722	71,607
General and administrative	55,170	64,176
Total operating expenses	286,231	213,638
Loss from operations	(92,696)	(87,588)
Other expenses, net	(1,118)	(636)
Loss before (provision) benefit for income taxes	(93,814)	(88,224)
(Provision) benefit for income taxes	(977)	51,721
Net loss attributable to common stockholders	$ (94,791)	$ (36,503)
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share)	$ (0.68)	$ (0.31)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted (in shares)	139,231,594	116,590,513