Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 02, 2020	Jan. 31, 2019		Jan. 31, 2018
Revenue:
Revenue:	$ 1,643,440	$ 1,359,824		$ 1,024,762	[1]
Cost of revenue:
Total cost of revenue	509,886	457,528		353,781	[1]
Gross profit	1,133,554	902,296		670,981	[1]
Operating expenses:
Research and development	433,662	349,936		279,196	[1]
Sales and marketing	728,022	584,111		464,049	[1]
General and administrative	163,153	137,506		95,170	[1]
Total operating expenses	1,324,837	1,071,553	[1]	838,415
Loss from operations	(191,283)	(169,257)		(167,434)	[1]
Other income (expense), net	(3,383)	(8,016)		11,445	[1]
Loss before provision for income taxes	(194,666)	(177,273)		(155,989)	[1]
Provision for income taxes	6,321	1,089		3,889	[1]
Net loss	$ (200,987)	$ (178,362)		$ (159,878)	[1]
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share)	$ (0.79)	$ (0.77)	[1]	$ (0.76)	[1]
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)	252,820	232,042	[1]	211,609	[1]
Product
Revenue:
Revenue:	$ 1,238,654	$ 1,075,586		$ 834,454	[1]
Cost of revenue:
Cost of revenue:	362,970	352,054		275,242	[1]
Subscription services
Revenue:
Revenue:	404,786	284,238		190,308	[1]
Cost of revenue:
Cost of revenue:	$ 146,916	$ 105,474		$ 78,539	[1]

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