Net Loss per Share Attributable to Common Stockholders - Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 06, 2022	Jan. 31, 2021	Feb. 02, 2020
Earnings Per Share [Abstract]
Net loss	$ (143,259)	$ (282,076)	$ (200,987)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	285,882	267,824	252,820
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	285,882	267,824	252,820
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.50)	$ (1.05)	$ (0.79)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.50)	$ (1.05)	$ (0.79)