Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023	Jan. 31, 2024
Disaggregation of Revenue [Line Items]
Allowance for doubtful accounts	$ 4.6		$ 4.6		$ 2.5
Revenue recognized	642.7	$ 524.0	1,200.0	$ 896.4
Remaining performance obligation	$ 5,200.0		$ 5,200.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-08-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	50.00%		50.00%
Remaining performance obligation, remaining life	12 months		12 months