v3.26.1
Derivative Instruments and Hedging Activities - Statements of Other Comprehensive Loss Income (Details) - Interest Rate Swap - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Derivative [Line Items]      
Amount of pretax gains (losses) recognized in Other comprehensive income $ 3,453 $ (8,186) $ 15,164
Interest Expense      
Derivative [Line Items]      
Amount of pretax gains reclassified from Accumulated other comprehensive loss into Interest expense $ 829 $ 4,755 $ 12,420