Accrued and Other Current Liabilities - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Jul. 31, 2026 |
Apr. 30, 2026 |
May 12, 2026 |
Jan. 31, 2026 |
|
| Schedule of Accrued Liabilities [Line Items] | ||||
| Annual bonus paid | $ 14,100 | |||
| Development deposit liability | $ 0 | $ 13,500 | ||
| Reduction of research and development expense | $ 9,000 | |||
| Termination Agreement [Member] | ||||
| Schedule of Accrued Liabilities [Line Items] | ||||
| Refund to customer | $ 4,500 | |||
| Cash [Member] | ||||
| Schedule of Accrued Liabilities [Line Items] | ||||
| Annual bonus paid | 8,600 | |||
| Restricted stock units [Member] | ||||
| Schedule of Accrued Liabilities [Line Items] | ||||
| Annual bonus paid | $ 5,500 | |||