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Revenue - Remaining Performance Obligations (Details) - USD ($)
$ in Millions
Jan. 31, 2022
Jan. 31, 2021
Revenue from Contract with Customer [Abstract]    
Revenue, remaining performance obligation, amount $ 404.9 $ 351.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-02-01    
Revenue from Contract with Customer [Abstract]    
Revenue, remaining performance obligation, amount $ 379.0  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Revenue, remaining performance obligation, expected timing of satisfaction, period 2 years