CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Class A Nonvoting Common Stock	Class B Voting Common Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Class A Nonvoting Common Stock	Retained Earnings Class B Voting Common Stock	AOCI Attributable to Parent	Treasury Stock, Common
Beginning Balances at Jul. 31, 2023	$ 990,919			$ 548	$ 351,771	$ 1,021,870			$ (93,061)	$ (290,209)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	47,241					47,241
Other Comprehensive Income (Loss), Net of Tax	22,222								22,222
Issuance of shares of Class A Common Stock under stock plan	(265)				3,662					3,927
Tax benefit and withholdings from deferred compensation distributions	149				149
Repurchase of shares of Class A Common Stock, including excise taxes										(14,185)
Stock-based compensation expense	4,163				4,163
Dividends, Common Stock, Cash		$ 10,565	$ 773				$ 10,565	$ 773
Ending Balances at Oct. 31, 2023	994,992			548	352,421	1,057,773			(115,283)	(300,467)
Beginning Balances at Jul. 31, 2024	1,066,658			548	353,654	1,174,025			(109,622)	(351,947)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	46,783
Other Comprehensive Income (Loss), Net of Tax	1,980								1,980
Issuance of shares of Class A Common Stock under stock plan	(2,870)				5,065					7,935
Tax benefit and withholdings from deferred compensation distributions	190				190
Stock-based compensation expense	5,813				5,813
Dividends, Common Stock, Cash		$ 10,612	$ 790				$ 10,612	$ 790
Ending Balances at Oct. 31, 2024	$ 1,108,932			$ 548	$ 354,592	$ 1,209,406			$ (111,602)	$ (344,012)