CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jan. 31, 2023	Jul. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 8,097	$ 7,355
Class A Nonvoting Common Stock
Common stock, shares issued	51,261,487	51,261,487
Common stock, shares outstanding	46,115,760	46,370,708
Treasury stock, shares	5,145,727	4,890,779
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