STOCK-BASED COMPENSATION - Schedule of Stock-Based Compensation Expense by Type of Award (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2022 |
Apr. 30, 2021 |
|
| Stock-Based Compensation Plans | ||
| Stock-based compensation | $ 18,369 | $ 16,401 |
| Equity Settled Awards | ||
| Stock-Based Compensation Plans | ||
| Stock-based compensation | 18,364 | 16,405 |
| Equity Settled Awards | Restricted stock units and restricted stock awards | ||
| Stock-Based Compensation Plans | ||
| Stock-based compensation | 16,011 | 14,253 |
| Equity Settled Awards | Stock bonus program and bonus share program | ||
| Stock-Based Compensation Plans | ||
| Stock-based compensation | 2,353 | 2,152 |
| Cash Settled Awards | Phantom stock units (cash-settled awards) | ||
| Stock-Based Compensation Plans | ||
| Stock-based compensation | $ 5 | $ (4) |