Consolidated Balance Sheets (Parenthetical) - shares	Apr. 30, 2024	Apr. 30, 2023
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	106,194,281	104,398,618
Treasury Stock, Common Shares	44,293,364	42,099,112