Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue	$ 776,027	$ 397,188
Costs and expenses
Cost of revenue	462,857	260,609
Operations and support	187,235	59,905
Research and development	630,960	63,192
Sales and marketing	275,129	168,707
General and administrative	376,736	90,154
Total costs and expenses	1,932,917	642,567
Loss from operations	(1,156,890)	(245,379)
Interest income	19,654	11,501
Other income (expense)	146	(55)
Loss before income taxes	(1,137,090)	(233,933)
Provision for income taxes	1,383	406
Net loss	$ (1,138,473)	$ (234,339)
Net loss per share, basic and diluted	$ (48.53)	$ (11.69)
Weighted-average number of shares outstanding used to compute net loss per share, basic and diluted	23,459	20,039
Stock-based compensation expense	$ 859,486	$ 1,996
Cost of revenue
Costs and expenses
Stock-based compensation expense	41,489	105
Operations and support
Costs and expenses
Stock-based compensation expense	51,404	51
Research and development
Costs and expenses
Stock-based compensation expense	506,206	728
Sales and marketing
Costs and expenses
Stock-based compensation expense	45,111	127
General and administrative
Costs and expenses
Stock-based compensation expense	$ 215,276	$ 985