Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 212.3	$ 174.5	$ 360.0	$ 290.8
Revenue, remaining performance obligation, amount	1,900.0		1,900.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-08-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 931.1		$ 931.1
Remaining performance obligation period	12 months		12 months