Condensed Consolidated Statement Of Shareholders' Equity (USD $) 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 Sep. 01, 2012	$ 53			$ 16			$ 483,682	$ 970,965	$ (2,443)	$ (265,162)	$ 1,187,111
Balance, Shares at Sep. 01, 2012	52,582			15,560						5,342
Exchange of Class B common stock for Class A common stock, Shares	1,394			(1,394)
Exchange of Class B common stock for Class A common stock, Value	2			(2)			0	0	0	0	0
Exercise of common stock options, including income tax benefits of $5,177, Shares	469			0						0
Exercise of common stock options, including income tax benefits of $5,177, Value	0			0			25,163	0	0	0	25,163
Common stock issued under associate stock purchase plan, Shares	0			0						(42)
Common stock issued under associate stock purchase plan, Value	0			0			1,319	0	0	1,572	2,891
Grant of restricted common stock, net of cancellations, Shares	131			0						0
Stock-based compensation	0			0			11,989	0	0	0	11,989
Purchase of treasury stock, Shares	0									51
Purchase of treasury stock, Value	0			0			0	0	0	(3,656)	(3,656)
Cash dividends paid on common stock	0	(43,478)	(43,478)	0	(13,365)	(13,365)	0		0	0
Issuance of dividend equivalent units	0			0			174	(174)	0	0	0
Cumulative foreign currency translation adjustment	0			0			0	0	(1,165)	0	(1,165)
Net income	0			0			0	181,620	0	0	181,620
Balance, Value at Jun. 01, 2013	$ 55			$ 14			$ 522,327	$ 1,095,568	$ (3,608)	$ (267,246)	$ 1,347,110
Balance, Shares at Jun. 01, 2013	54,576			14,166						5,351