Net loss per share attributable to common stockholders - Schedule of Shares Excluded from Computation of Diluted Net Loss Per Share (Details) - shares |
6 Months Ended | |
|---|---|---|
Jul. 31, 2024 |
Jul. 31, 2023 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 6,877,852 | 7,240,405 |
| Stock options to purchase common stock, restricted stock and performance stock awards | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 6,795,068 | 7,167,904 |
| Employee stock purchase plan | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities excluded from computation of earnings per share (in shares) | 82,784 | 72,501 |