Equity Incentive Plans - Equity Incentive Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2021	Nov. 01, 2020	Oct. 31, 2021	Nov. 01, 2020	Jan. 31, 2021
Options Outstanding, Number of Shares
Beginning balance (in shares)			18,558,974
Options exercised (in shares)			(3,983,273)
Options forfeited (in shares)			(286,550)
Ending balance (in shares)	14,289,151		14,289,151		18,558,974
Vested and exercisable (in shares)	13,250,654		13,250,654
Options Outstanding, Weighted Average Exercise Price
Beginning balance (in dollars per share)			$ 9.60
Options exercised (in dollars per share)			8.42
Options forfeited/canceled (in dollars per share)			11.24
Ending balance (in dollars per share)	$ 9.90		9.90		$ 9.60
Weighted Average Exercise Price, Vested and exercisable (in dollars per share)	$ 10.32		$ 10.32
Weighted- Average Remaining Contractual Life
Weighted Average Remaining Contractual Life (in years)			3 years 7 months 6 days		4 years 3 months 18 days
Weighted Average Remaining Contractual Life, Vested and exercisable (in years)			3 years 4 months 24 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value	$ 242,811		$ 242,811		$ 251,503
Aggregate Intrinsic Value, Vested and exercisable	$ 219,225		$ 219,225
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of stock (in dollars per share)	$ 26.86		$ 26.86
Total stock-based compensation expense	$ 76,000	$ 59,609	$ 207,763	$ 179,755
Unrecognized compensation cost, stock options	9,300		9,300
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 1,700	$ 1,600	$ 6,000	$ 5,700
Compensation cost (in years)			1 year 9 months 18 days
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of stock (in dollars per share)	$ 26.86		$ 26.86