Equity Incentive Plans and Employee Stock Purchase Plan - Employee Stock Purchase Plan, Additional Information (Details)	3 Months Ended	6 Months Ended
Jul. 31, 2022 shares	Jul. 31, 2022 USD ($) shares
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee contribution rate	15.00%	15.00%
Employee Stock Purchase Plan \| Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock under the Employee Stock Purchase Plan (in shares)	72,982
Unvested executive PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Performance factor		100
PSU's granted (in shares)		74,823
PSU's granted (in dollars) \| $		$ 23,700,000
Unvested executive PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		0.00%
Unvested executive PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage		200.00%

Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Performance Factor

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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value

+ References

No definition available.

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

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Gross number of share options (or share units) granted during the period.

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Percentage of vesting of award under share-based payment arrangement.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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