CASH, CASH EQUIVALENTS AND INVESTMENTS (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Oct. 31, 2024	Jan. 31, 2024
Cash and Cash Equivalents
Accrued dividends	$ 0.4	$ 0.7
Held-to-maturity Securities
Cash and Cash Equivalents
Maturity period	1 year	1 year
Accrued interest	$ 2.0	$ 4.5
Weighted average annual interest rates of CDs (as a percent)	4.80%	5.40%