Business and Summary of Significant Accounting Policies - Accounts Receivable, Net (Details) - USD ($) $ in Millions	Jan. 31, 2022	Jan. 31, 2021
Accounting Policies [Abstract]
Trade accounts receivable	$ 779.8	$ 701.3
Less: Allowance for credit losses	(4.6)	(3.8)
Product returns reserve	(0.6)	(0.7)
Partner programs and other obligations	(58.5)	(53.7)
Accounts receivable, net	$ 716.1	$ 643.1