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Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Revenue Recognition [Line Items]    
Contract assets in accounts receivable $ 14,163 $ 12,693
Contract liabilities $ 4,152 $ 6,073
Fiscal Year 2027    
Revenue Recognition [Line Items]    
Contract liability recognized as revenue percentage 97.00%