Consolidated Balance Sheets (Parenthetical) - shares	Apr. 30, 2025	Apr. 30, 2024
Statement of Financial Position [Abstract]
Serial preferred shares, no par value, shares authorized (in shares)	6,000,000	6,000,000
Serial preferred shares outstanding	0	0
Common shares authorized	300,000,000	300,000,000
Common shares outstanding	106,425,081	106,194,281
Treasury Stock, Common Shares	44,062,564	44,293,364