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Organization and Significant Accounting Policies - Performance Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2022
Performance Obligations      
Remaining performance obligations $ 400,201    
Remaining performance obligations satisfied over time (as a percentage) 100.00% 100.00% 100.00%
Remaining performance obligations at a point in time (as a percentage) 43.00% 51.00% 57.00%
Remaining performance obligations (as a percentage) 57.00% 49.00% 43.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-05-01      
Performance Obligations      
Year of performance obligations 1 year    
Remaining performance obligations (as a percentage) 90.00%    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-05-01      
Performance Obligations      
Year of performance obligations 1 year    
Remaining performance obligations (as a percentage) 10.00%