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Stockholders' Equity - Valuation Assumptions (Details) - ESPP | 12 Months Ended
--- | ---
Jan. 31, 2025 | Jan. 31, 2024 | Jan. 31, 2023
Class of Stock [Line Items] |  |  |
Risk-free interest rate, minimum | 4.45% | 4.93% | 1.15%
Risk-free interest rate, maximum | 5.35% | 5.59% | 4.04%
Expected dividend yield | 0.00% | 0.00% | 0.00%
Expected life (in years) | 6 months | 6 months | 6 months
Expected volatility, minimum | 32.00% | 31.00% | 83.00%
Expected volatility, maximum | 41.00% | 76.00% | 102.00%

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- Definition The estimated measure of the maximum 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. + References No definition available. + Details
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