Business and Summary of Significant Accounting Policies - Segments (Details) $ in Millions	12 Months Ended
	Jan. 31, 2020 USD ($) segment	Jan. 31, 2019 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Number of operating segments | segment	1
Total long-lived assets	$ 600.5	$ 149.7
U.S.
Long Lived Assets Held-for-sale [Line Items]
Total long-lived assets	434.2	97.5
Other Americas
Long Lived Assets Held-for-sale [Line Items]
Total long-lived assets	33.2	17.5
Americas
Long Lived Assets Held-for-sale [Line Items]
Total long-lived assets	467.4	115.0
Europe, Middle East, and Africa
Long Lived Assets Held-for-sale [Line Items]
Total long-lived assets	75.8	23.0
Total long-lived assets
Long Lived Assets Held-for-sale [Line Items]
Total long-lived assets	$ 57.3	$ 11.7