v3.25.4

Stock-based compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 01, 2025 | Jul. 09, 2018 | Dec. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2025
Stock-Based Compensation |  |  |  |  |
Unrecognized compensation cost related to unvested common stock options |  |  | $ 41.5 |  |
Expenses expected to be recognized over a weighted average remaining period |  |  | 2 years 4 months 6 days |  |
Weighted average grant-date fair value (in dollars per share) |  |  | $ 5.84 | $ 5.60 |
Value of stock options exercised |  |  | $ 0.4 | $ 0.5 |
Stock options |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Exercise price for persons holding ten percent of voting power (as a percent) |  |  | 100.00% |  |
Exercise price for persons holding more than ten percent of voting power (as a percent) |  |  | 110.00% |  |
Share based payment award expiration period |  |  | 10 years |  |
Share based payment award vesting period |  |  | 4 years |  |
Unrecognized compensation cost related to unvested common stock options |  |  | $ 22.6 |  |
Expenses expected to be recognized over a weighted average remaining period |  |  | 2 years 6 months |  |
Stock options | Maximum |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Expiration period for persons holding ten percent of voting power |  |  | 5 years |  |
Stock options | Minimum |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Expiration period for persons holding more than ten percent of voting power |  |  | 10 years |  |
RSUs |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Share based payment award vesting period |  |  | 4 years |  |
RSUs | Share-Based Payment Arrangement, Tranche One |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Share based payment award vesting period |  |  | 1 year |  |
PSUs |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Granted (in shares) |  |  | 0 | 246,110 |
Unrecognized compensation cost related to unvested common stock options |  |  | $ 4.2 |  |
Pre-funded warrants |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Common stock, authorized (in shares) |  |  |  |  | 14,058,153
2017 Plan |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Number of shares available for grant |  | 2,520,247 |  |  |
2018 Plan |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Shares authorized (in shares) |  | 3,617,968 |  |  |
Number of shares available for grant |  |  | 1,461,563 |  |
Share based payment award percentage of outstanding shares |  | 4.00% |  |  |
Additional shares authorized (in shares) | 3,645,727 |  |  |  |
ESPP |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Share based payment award percentage of outstanding shares |  | 1.00% |  |  |
Additional shares authorized (in shares) | 697,224 | 697,224 |  |  |
Common stock reserved for issuance (in shares) | 4,102,399 | 348,612 |  |  |
Out Of Plan Inducement Grants | RSUs |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Granted (in shares) |  |  | 333,130 | 148,190 |
Out Of Plan Inducement Grants | Nonqualified Stock Options |  |  |  |  |
Stock-Based Compensation |  |  |  |  |
Granted (in shares) |  |  | 202,945 | 124,065 |

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