INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Income Tax Contingency [Line Items]
Discrete tax benefit	$ 5,400		$ 5,400
Incurred income tax expense	(3,159)	$ 1,524	133,603	$ 5,235
Partially offset by discrete tax benefit	$ 4,700		$ 4,700
Effective tax rate excluding discrete items (as a percent)	(3.50%)	(2.00%)	(3.70%)	(2.50%)
Advanced Pricing Agreement
Income Tax Contingency [Line Items]
Incurred income tax expense			$ 136,000