Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Class A Common Stock [Member] Common Stock [Member]	Class A Common Stock [Member] Retained Earnings [Member] Regular Dividends [Member]	Class A Common Stock [Member] Retained Earnings [Member] Special Dividends [Member]	Class A Common Stock [Member] Treasury Stock [Member]	Class A Common Stock [Member]	Class B Common Stock [Member] Common Stock [Member]	Class B Common Stock [Member] Retained Earnings [Member] Regular Dividends [Member]	Class B Common Stock [Member] Retained Earnings [Member] Special Dividends [Member]	Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance, Value at Aug. 31, 2019	$ 46					$ 10				$ 659,226	$ 946,651	$ (22,776)	$ (104,607)		$ 5,329
Associate Incentive Plans					$ 1
Associate Incentive Plans										31,513
Issuance of Noncontrolling Interest
Capital Contributions
Foreign Currency Translation Adjustment												1,358			(342)	$ 1,016
Net Income (Loss)											251,117				641	251,117
Repurchase and retirement of Class A common stock, Value
Repurchases of Class A common stock, Value				$ (3,444)
Exchange of Class B common stock for Class A common stock, value
Cash dividends declared on Common Stock		$ (136,258)	$ (226,984)				$ (30,279)	$ (50,650)
Dividend equivalents declared, net of cancellations											(4,082)
Associate Incentive Plans													4,103
Balance, Value at Aug. 29, 2020	47					10				690,739	749,515	(21,418)	(103,948)	$ 1,314,945	5,628	1,320,573
Dividends declared per Common Share					$ 8.00				$ 8.00
Associate Incentive Plans
Associate Incentive Plans										50,251
Issuance of Noncontrolling Interest															3,825
Capital Contributions															100
Foreign Currency Translation Adjustment												3,434			418	3,852
Net Income (Loss)											216,907				1,030	216,907
Repurchase and retirement of Class A common stock, Value										(123)	(67,343)
Repurchases of Class A common stock, Value				(3,795)
Exchange of Class B common stock for Class A common stock, value	1					(1)
Cash dividends declared on Common Stock		(140,296)	(163,511)				(27,003)	(31,840)
Dividend equivalents declared, net of cancellations											(4,114)
Associate Incentive Plans													3,359
Balance, Value at Aug. 28, 2021	48					9				740,867	532,315	(17,984)	(104,384)	1,150,871	11,001	1,161,872
Dividends declared per Common Share					$ 6.50				6.50
Associate Incentive Plans
Associate Incentive Plans										57,591
Issuance of Noncontrolling Interest
Capital Contributions
Foreign Currency Translation Adjustment												(5,137)			152	(4,985)
Net Income (Loss)											339,786				696	339,786
Repurchase and retirement of Class A common stock, Value										(50)	(22,076)
Repurchases of Class A common stock, Value				$ (5,233)
Exchange of Class B common stock for Class A common stock, value
Cash dividends declared on Common Stock		$ (141,414)					$ (25,962)
Dividend equivalents declared, net of cancellations											(1,357)
Associate Incentive Plans													3,415
Balance, Value at Sep. 03, 2022	$ 48					$ 9				$ 798,408	$ 681,292	$ (23,121)	$ (106,202)	$ 1,350,434	$ 11,849	$ 1,362,283
Dividends declared per Common Share					$ 3.00				$ 3.00