Revenue and Contract Balances - Remaining Performance Obligations Narrative (Details) $ in Millions	Jul. 31, 2021 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 219.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-08-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	87.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	24 months