Revenue Recognition - Remaining Performance Obligation (Details) $ in Millions	Jan. 31, 2021 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 1,750.9
Billed consideration
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	883.5
Unbilled consideration
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 867.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-02-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation percentage	70.00%
Revenue remaining performance obligation, expected timing of satisfaction period	12 months