Equity Incentive Plans - Additional Information (Details) $ / shares in Units, $ in Thousands					1 Months Ended				6 Months Ended
	Aug. 01, 2022 shares	Aug. 01, 2021 shares	Dec. 13, 2019 USD ($) PurchasePeriod shares	Dec. 13, 2019 USD ($) PurchasePeriod shares	Aug. 31, 2022 $ / shares shares	Oct. 31, 2021 $ / shares shares	Dec. 31, 2020 $ / shares shares	Sep. 30, 2016 shares	Jan. 31, 2023 USD ($) Plan $ / shares shares	Jan. 31, 2022 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plans | Plan									3
Shares reserved for future issuance (in shares)									44,700,000
Number of shares available for grant (in shares)									13,800,000
Grants in period (in shares)									0
Exercises in period (in shares)									400,000
Weighted average exercise price (in dollars per share) | $ / shares									$ 6.20
Options outstanding (in shares)									1,300,000
Contractual term									1 year 6 months
Options outstanding, intrinsic value | $									$ 28,600
Monetary cap | $			$ 25,000	$ 25,000
Share cap (in shares)			1,000
Offering period duration (in months)			12 months
Number of six-month purchase periods | PurchasePeriod			2	2
Proceeds from stock plans | $									22,896	$ 32,053
Compensation not yet recognized | $									$ 653,600
Period for recognition (in years)									2 years 9 months 18 days
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average exercise price (in dollars per share) | $ / shares									$ 7.24
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)									15,804,000
Granted (in dollars per share) | $ / shares									$ 18.43
Common Class A [Member] | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)			13,800,000	13,800,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)									13,800,000
Percent of eligible compensation (up to)			15.00%	15.00%
Purchase price of common stock, percent				85.00%
ESPP stock issued during period (in shares)									1,000,000.0
2016 Plan | Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)								22,400,000
Annual increase (in shares)								18,000,000.0
Annual increase, percent of outstanding shares								5.00%
Number of additional shares authorized	11,300,000	10,700,000
2016 Plan | Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock plans | $									$ 18,900
Market Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments outstanding (in shares)									2,100,000
Market Stock Units | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)					1,300,000	400,000	700,000
Granted (in dollars per share) | $ / shares					$ 27.89	$ 46.20	$ 35.69
Vesting percentage						200.00%	133.00%
Award vesting period					2 years 10 months 24 days	2 years 9 months 18 days	4 years