REVENUE AND CONTRACT BALANCES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024	Jan. 31, 2025
Disaggregation of Revenue [Line Items]
Unbilled receivables, current	$ 11.9		$ 11.9		$ 5.5
Contract with customer, liability	569.5		569.5		$ 572.1
Contract with customer, liability, revenue recognized	192.1	$ 165.0	419.6	$ 347.8
Revenue, remaining performance obligation, amount	$ 1,300.0		$ 1,300.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-11-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	85.00%		85.00%
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