COMMITMENTS - Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Commitments
Weighted average remaining lease term	40 months	41 months
Operating lease expense	$ 3.8	$ 1.9	$ 2.6
Weighted average discount rate	5.00%	5.20%
Right-of-use assets	$ 5.3	$ 5.3
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Operating Lease Right Of Use Asset, and Other Assets	Operating Lease Right Of Use Asset, and Other Assets
Costs of Revenues [Member]
Commitments
Short-term rentals expense	$ 17.0	$ 9.5	$ 11.3