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Contract Balances - Expecting Timing of Satisfaction (Details)
Jan. 31, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-02-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction 12 months
Long-term Contract with Customer | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-02-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Percent of revenue expected to be recognized within twelve months 62.00%
Expected timing of satisfaction 24 months