LEASES - Other information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
LEASES [Abstract]
Operating lease, lease not yet commenced, description	As of April 30, 2023, there are no material leases that are legally binding but have not yet commenced.
Weighted average remaining lease term	5 years 4 months 24 days
Weighted average discount rate	8.00%
Cash paid for amounts included in the measurement of operating lease liabilities	$ 21.2	$ 15.0
Right-of-use assets obtained in exchange for lease obligations	$ 10.5	$ 8.6