v3.26.1
Accounting Policies (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 23.6 $ 29.9 $ 23.9
Related income tax benefit 5.6 7.1 5.6
Location, Statement of Income, Balance [Axis]: us-gaap:RestructuringCharges      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 0.9 0.8 0.2
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 22.7 $ 29.1 $ 23.7