Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Business and Summary of Significant Accounting Policies - Computer Equipment, Software, Furniture, and Leasehold Improvements, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Property, Plant and Equipment [Line Items]
Computer software, at cost	$ 0.0	$ 0.0
Depreciation	43.0	47.0	$ 50.0
Tangible asset impairment charges	$ 0.0	$ 0.0	$ 0.0
Software and Software Development Costs
Property, Plant and Equipment [Line Items]
Useful life	2 years
Computer software, at cost
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Useful life	5 years