Stockholders' Equity and Equity Incentive Plans - Summary of Stock Option Activity Under Equity Incentive Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Outstanding Stock Options
Beginning balance (in shares)	4,800,616
Exercised (in shares)	(1,464,158)
Cancelled/forfeited/expired (in shares)	(22,230)
Ending balance (in shares)	3,314,228	4,800,616
Weighted- Average Exercise Price
Beginning balance (in dollars per share)	$ 8.22
Exercised (in dollars per share)	6.96
Cancelled/forfeited/expired (in dollars per share)	92.95
Ending balance (in dollars per share)	$ 8.21	$ 8.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-average remaining contractual life (years)	3 years 10 months 24 days	4 years 10 months 24 days
Aggregate intrinsic value	$ 189,921	$ 322,929
Aggregate intrinsic value, exercised	$ 90,039	$ 121,500	$ 843,000

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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