Common Stock (Tables)

12 Months Ended

Apr. 30, 2023

Class of Stock [Line Items]

Schedule of Common Stock Outstanding Roll Forward [Table Text Block]

The following table shows the change in outstanding common shares during each of the last three years:

(Shares in thousands)	Class A	Class B	Total
Balance at April 30, 2020	169,040	309,169	478,209
Stock issued under compensation plans	70	450	520
Balance at April 30, 2021	169,110	309,619	478,729
Stock issued under compensation plans	65	226	291
Balance at April 30, 2022	169,175	309,845	479,020
Stock issued under compensation plans	65	231	296
Balance at April 30, 2023	169,240	310,076	479,316