REVENUE AND CONTRACT BALANCES - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
Jan. 31, 2026 |
|
| Disaggregation of Revenue [Line Items] | |||||
| Unbilled receivables, current | $ 10.3 | $ 10.3 | $ 6.7 | ||
| Contract with customer, liability | 577.6 | 577.6 | $ 633.1 | ||
| Contract with customer, liability, revenue recognized | 212.8 | $ 181.2 | 372.6 | $ 317.2 | |
| Revenue, remaining performance obligation, amount | $ 1,700.0 | $ 1,700.0 | |||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-08-01 | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Revenue, remaining performance obligation, percentage | 79.00% | 79.00% | |||
| Revenue, remaining performance obligation, expected timing of satisfaction, period | 24 months | 24 months | |||
| Minimum | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Revenue from contract with customer, contract term | 1 year | ||||
| Maximum | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Revenue from contract with customer, contract term | 3 years | ||||