Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 2,400.0
Contract assets	10.8	$ 13.8
Revenue recognized that was included in contract liability balance at the beginning of the period	$ 1,400.0	$ 1,300.0	$ 1,200.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-02-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	57.00%
Remaining performance obligations, period of recognition	12 months
Subscription | Revenue | Product Concentration Risk
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Concentration risk percentage	98.00%	97.00%	97.00%