v3.25.1
Stock-Based Compensation SSARs Fair Value Assumptions (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares
12 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant-date fair value $ 12.86 $ 21.69 $ 20.67
Expected term (years) 7 years 7 years 7 years
Risk-free interest rate (percent) 4.10% 4.10% 2.70%
Expected volatility (percent) 26.10% 25.00% 24.80%
Expected dividend yield (percent) 1.90% 1.20% 1.00%