v3.26.1
Stock-Based Compensation SSARs Fair Value Assumptions (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares
12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant-date fair value $ 8.19 $ 12.86 $ 21.69
Expected term (years) 6 years 10 months 24 days 7 years 7 years
Risk-free interest rate (percent) 4.10% 4.10% 4.10%
Expected volatility (percent) 28.60% 26.10% 25.00%
Expected dividend yield (percent) 2.90% 1.90% 1.20%