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Organization and Significant Accounting Policies - Performance Obligations (Details)
Aug. 01, 2020
USD ($)
Organization and Significant Accounting Policies  
Remaining performance obligations $ 154,418,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-30  
Organization and Significant Accounting Policies  
Remaining performance obligations (as a percentage) 95.00%
Performance Obligations  
Year of performance obligations 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-30  
Organization and Significant Accounting Policies  
Remaining performance obligations (as a percentage) 5.00%
Performance Obligations  
Year of performance obligations 1 year