COMMITMENTS - Employee Benefit Plans (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Employee Benefit Plans | |||
| Company's expense for defined contribution savings plans | $ 3.9 | $ 3.4 | $ 2.9 |
| Minimum | |||
| Employee Benefit Plans | |||
| Deferred period | 4 years | ||
| Nonqualified deferred compensation, minimum deferral period | 1 year | ||
| Maximum | |||
| Employee Benefit Plans | |||
| Deferred period | 7 years | ||