Net Loss per Share Attributable to Common Stockholders - Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2021	Aug. 02, 2020	Aug. 01, 2021	Aug. 02, 2020
Earnings Per Share [Abstract]
Net loss	$ (45,265)	$ (64,967)	$ (129,471)	$ (155,561)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	283,931	264,799	282,147	263,867
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	283,931	264,799	282,147	263,867
Net loss per share attributable to common stockholders, basic (in USD per share)	$ (0.16)	$ (0.25)	$ (0.46)	$ (0.59)
Net loss per share attributable to common stockholders, diluted (in USD per share)	$ (0.16)	$ (0.25)	$ (0.46)	$ (0.59)