Condensed Consolidated Statement Of Shareholders' Equity - 3 months ended Nov. 28, 2015 - USD ($) shares in Thousands, $ in Thousands	Class A Common Stock [Member] Common Stock [Member]	Class A Common Stock [Member] Retained Earnings [Member]	Class A Common Stock [Member]	Class B Common Stock [Member] Common Stock [Member]	Class B Common Stock [Member] Retained Earnings [Member]	Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Class A Treasury Stock [Member]	Total
Balance, Value at Aug. 29, 2015	$ 56			$ 13			$ 604,905	$ 1,232,381	$ (17,252)	$ (487,233)	$ 1,332,870
Balance, Shares at Aug. 29, 2015			56,400			13,296				8,038
Exercise of common stock options, including income tax deficiencies, Shares			7								7
Exercise of common stock options, including income tax deficiencies, Value							125				$ 125
Common stock issued under associate stock purchase plan, Shares										(15)
Common stock issued under associate stock purchase plan, Value							271			$ 555	826
Issuance of restricted common stock, net of cancellations, Shares			(4)
Stock-based compensation							3,621				3,621
Purchase of treasury stock, Shares										97
Purchase of treasury stock, Value										$ (5,796)	(5,796)
Cash dividends on common stock		$ (20,790)	$ (20,790)		$ (5,717)	$ (5,717)
Dividend equivalent units declared								(111)			(111)
Foreign currency translation adjustment									(1,115)		(1,115)
Net income								55,029			55,029
Balance, Value at Nov. 28, 2015	$ 56			$ 13			$ 608,922	$ 1,260,792	$ (18,367)	$ (492,474)	$ 1,358,942
Balance, Shares at Nov. 28, 2015			56,403			13,296				8,120