Share-Based Compensation - Share-Based Compensation Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Share-based Compensation [Abstract] | ||
| Restricted Stock Awards and Restricted Stock Units | $ 564 | $ 281 |
| Stock-Settled Performance Awards | (175) | 0 |
| Employee Stock Purchase Plan | 0 | 25 |
| Total | $ 389 | $ 306 |