CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Equity Option	Class A Common Stock	Common Stock Class A Common Stock	Common Stock Class A Common Stock Equity Option	Common Stock Class B Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock, Common	Treasury Stock, Common Equity Option
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock (in shares)									912
Balance (in shares) at Jul. 29, 2023				11,563		4,204
Balance at Jul. 29, 2023	$ 410,166			$ 76,179		$ 683	$ 343,497	$ 8,134	$ (18,327)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	50,462						50,462
Other comprehensive income, net of tax	(1,555)							(1,555)
Dividends	(13,341)						(13,341)
Stock Issued During Period, Value, Stock Options Exercised		$ 45								$ 31
Treasury stock purchases (in shares)									(89)	(2)
Treasury stock purchases	(2,211)								$ (2,211)
Restricted shares forfeited (in shares)				(28)
Restricted shares forfeited	(141)			$ (141)
Share-based compensation expense (in shares)				24
Share-based compensation expense	4,134			$ 4,134	$ 14
Balance (in shares) at Jul. 27, 2024				11,559		4,204
Balance at Jul. 27, 2024	447,559			$ 80,186		$ 683	380,618	6,579	$ (20,507)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock (in shares)			999						999
Net income	56,380						56,380
Other comprehensive income, net of tax	(2,126)							(2,126)
Dividends	(13,308)						(13,308)
Stock Issued During Period, Value, Stock Options Exercised		$ 53								$ 42
Treasury stock purchases (in shares)										(2)
Restricted shares forfeited (in shares)				(21)
Restricted shares forfeited	(214)			$ (214)
Share-based compensation expense (in shares)				8	2
Share-based compensation expense	3,620			$ 3,620	$ 11
Conversion of Class B shares to Class A shares	0			$ 13		$ (13)	0	0	$ 0
Conversion of Class B shares to Class A (in shares)				(79)		(79)			0
Balance (in shares) at Jul. 26, 2025				11,627		4,125
Balance at Jul. 26, 2025	$ 491,964			$ 83,616		$ 670	$ 423,690	$ 4,453	$ (20,465)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock (in shares)			997						997