CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jul. 31, 2023	Jul. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 8,467	$ 7,355
Class A Nonvoting Common Stock
Common Stock, Shares, Issued	51,261,487	51,261,487
Common stock, shares outstanding	45,008,724	46,370,708
Treasury Stock, Common, Shares	6,252,763	4,890,779
Common Stock Aggregate Liquidation Preference	$ 42,716	$ 42,716
Class B Voting Common Stock
Common Stock, Shares, Issued	3,538,628	3,538,628
Common stock, shares outstanding	3,538,628	3,538,628