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Organization and Significant Accounting Policies - Performance Obligations (Details) - USD ($)
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2023
Performance Obligations      
Remaining performance obligations $ 726,627,000    
Total revenue (as a percentage) 43.00% 57.00% 49.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-05-01      
Performance Obligations      
Year of performance obligations 1 year    
Total revenue (as a percentage) 90.00%    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-05-01      
Performance Obligations      
Year of performance obligations 1 year    
Total revenue (as a percentage) 9.00%    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-05-01      
Performance Obligations      
Year of performance obligations 0 years    
Total revenue (as a percentage) 2.00%