Equity Incentive Plans - Narrative (Details)	3 Months Ended
May 08, 2022 USD ($) period plan shares	May 02, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plans \| plan	2
Equity awards expiration period (no later than)	10 years
Total stock-based compensation expense	$ 74,571,000	$ 61,334,000
2015 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan offering period	24 months
Number of purchase periods \| period	4
Purchase period, term	6 months
Reset charges	$ 0	0
Total stock-based compensation expense	6,900,000	$ 7,600,000
Unrecognized stock-based compensation expense	$ 32,400,000
Compensation cost (in years)	1 year 8 months 12 days
2015 Employee Stock Purchase Plan \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payroll deductions percentage	30.00%
Share cap for ESPP at purchase date (in shares) \| shares	3,000
Dollar cap per purchase period	$ 7,500
Calendar year gap for ESPP contribution amount	$ 25,000
Purchase price as percentage of fair market value of common stock	85.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	2 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years

Employee stock purchase plan offering period.

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- Definition

Number of equity compensation plans.

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Number of Purchase Periods

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Purchase Period, Term

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- Definition

Share cap for ESPP at each purchase date.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Dollar Cap Per Purchase Period

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

Amount of cost expensed and capitalized for award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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