Revenue and Contract Balances - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Jan. 31, 2024
Disaggregation of Revenue [Line Items]
Unbilled receivables, current	$ 4.5		$ 3.8
Contract with customer, liability	493.1		$ 514.5
Contract with customer, liability, revenue recognized	148.0	$ 100.3
Revenue, remaining performance obligation, amount	$ 874.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-05-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	89.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	24 months
Minimum
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, contract term	1 year
Maximum
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, contract term	3 years