Stock-Based Compensation PBRSUs (Details) - PBRSU [Member] shares in Thousands	12 Months Ended
	Apr. 30, 2024 $ / shares shares
Number of PBRSUs [Roll Forward]
Outstanding, beginning balance | shares	289
Granted | shares	209
Adjusted for performance and dividends | shares	(38)
Converted to common shares (shares) | shares	(41)
Forfeited | shares	(6)
Outstanding, ending balance | shares	413
Weighted Average Fair Value at Grant Date [Roll Forward]
Weighted Average Fair Value at Grant Date, Outstanding, Beginning | $ / shares	$ 76.33
Weighted Average Fair Value at Grant Date, Granted | $ / shares	75.70
Weighted Average Fair Value at Grant Date, Adjusted for Performance and Dividends | $ / shares	73.56
Weighted Average Fair Value at Grant Date, Converted to Common Shares | $ / shares	73.56
Weighted Average Fair Value at Grant Date, Forfeited | $ / shares	77.12
Weighted Average Fair Value at Grant Date, Outstanding, Ending | $ / shares	$ 76.53