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	Treasury Stock, Common	Accumulated Other Comprehensive Loss
Beginning balance at Jul. 31, 2023	$ 990,919			$ 548	$ 351,771	$ 1,021,870			$ (290,209)	$ (93,061)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	90,869					90,869
Other Comprehensive Income (Loss), Net of Tax	(6,880)									(6,880)
Issuance of shares of Class A Common Stock under stock plan	3,004				(3,389)				6,393
Tax benefit and withholdings from deferred compensation distributions	149				149
Repurchase of shares of Class A Common Stock, including excise taxes	(21,898)								(21,898)
Stock-based compensation expense	5,263				5,263
Dividends, Common Stock, Cash		$ (21,090)	$ (1,604)				$ (21,090)	$ (1,604)
Ending balance at Jan. 31, 2024	1,038,732			548	353,794	1,090,045			(305,714)	(99,941)
Beginning balance at Oct. 31, 2023	994,992			548	352,421	1,057,773			(300,467)	(115,283)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,628					43,628
Other Comprehensive Income (Loss), Net of Tax	15,342									15,342
Issuance of shares of Class A Common Stock under stock plan	2,739				273				2,466
Repurchase of shares of Class A Common Stock, including excise taxes	(7,713)								(7,713)
Stock-based compensation expense	1,100				1,100
Dividends, Common Stock, Cash		(10,525)	(831)				(10,525)	(831)
Ending balance at Jan. 31, 2024	1,038,732			548	353,794	1,090,045			(305,714)	(99,941)
Beginning balance at Jul. 31, 2024	1,066,658			548	353,654	1,174,025			(351,947)	(109,622)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	87,117					87,117
Other Comprehensive Income (Loss), Net of Tax	(22,205)									(22,205)
Issuance of shares of Class A Common Stock under stock plan	3,582				(5,306)				8,888
Tax benefit and withholdings from deferred compensation distributions	190				190
Stock-based compensation expense	7,993				7,993
Dividends, Common Stock, Cash		(21,228)	(1,639)				(21,228)	(1,639)
Ending balance at Jan. 31, 2025	1,120,468			548	356,531	1,238,275			(343,059)	(131,827)
Beginning balance at Oct. 31, 2024	1,108,932			548	354,592	1,209,406			(344,012)	(111,602)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	40,334
Other Comprehensive Income (Loss), Net of Tax	(20,225)									(20,225)
Issuance of shares of Class A Common Stock under stock plan	712				(241)				953
Stock-based compensation expense	2,180				2,180
Dividends, Common Stock, Cash		$ (10,616)	$ (849)				$ (10,616)	$ (849)
Ending balance at Jan. 31, 2025	$ 1,120,468			$ 548	$ 356,531	$ 1,238,275			$ (343,059)	$ (131,827)