SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Property, Plant and Equipment [Line Items]
Capitalized internal-use software costs	$ 34.0	$ 37.8	$ 20.7
Capitalized computer software, amortization	19.2	12.3	7.1
Amortization of intangible assets	32.9	27.6	28.9
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 22.0	$ 15.2	$ 10.0