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Stockholders’ Equity and Employee Incentive Plans - Summary of Weighted-Average Assumptions Used In Estimating Fair Value of Employee Stock Purchase Rights (Details) - 2021 ESPP - Stock options outstanding	6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award
Expected term (in years)	9 months 18 days	1 year 7 months 6 days
Expected volatility (as a percent)	66.90%	49.40%
Risk-free interest rate (as a percent)	4.80%	0.20%
Dividend yield	0.00%	0.00%

X

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Expected term of 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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