Revenue and Contract Balances - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022	Jan. 31, 2023
Disaggregation of Revenue [Line Items]
Unbilled receivables, current	$ 2.5		$ 2.5		$ 1.5
Contract with customer, liability	421.4		421.4		$ 406.3
Contract with customer, liability, revenue recognized	92.3	$ 55.4	192.6	$ 115.4
Revenue, remaining performance obligation, amount	$ 676.1		$ 676.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-08-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	87.00%		87.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	24 months		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