LEASES - Other information (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
LEASES
Operating lease, lease not yet commenced, description	As of July 31, 2024, there are no material leases that are legally binding but have not yet commenced.
Weighted average remaining lease term	4 years 10 months 24 days
Weighted average discount rate	6.50%
Cash paid for amounts included in the measurement of operating lease liabilities	$ 38.0	$ 39.3
Right-of-use assets obtained in exchange for lease obligations	$ 16.1	$ 18.1