Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	May 31, 2014		May 25, 2013		May 31, 2014		May 25, 2013
Revenues	$ 352,238		$ 335,764		$ 1,042,909		$ 1,002,639
Operating expenses:
Cost of revenues (1)	216,644	[1]	208,066	[1]	640,341	[1]	618,038	[1]
Selling and administrative expenses (1)	67,996	[1]	64,786	[1]	203,478	[1]	194,891	[1]
Depreciation and amortization	18,109		17,115		53,237		51,065
Total operating expenses	302,749		289,967		897,056		863,994
Income from operations	49,489		45,797		145,853		138,645
Other (income) expense:
Interest expense	109		464		533		1,324
Interest income	(773)		(781)		(2,415)		(2,472)
Exchange rate loss	39		283		41		321
Total other (income) expense	(625)		(34)		(1,841)		(827)
Income before income taxes	50,114		45,831		147,694		139,472
Provision for income taxes	19,170		17,109		56,641		53,348
Net income	30,944		28,722		91,053		86,124
Income per share – Diluted:
Common Stock (in Dollars per share)	$ 1.53		$ 1.43		$ 4.52		$ 4.29
Income allocated to – Basic:
Income per share – Diluted	30,944		28,722		91,053		86,124
Income allocated to – Diluted:
Common Stock	30,637		28,307		89,992		84,747
Weighted average number of shares outstanding – Diluted:
Common Stock (in Shares)	19,977		19,820		19,921		19,751
Common Class A [Member]
Income per share – Basic:
Income per share – Basic (in Dollars per share)	$ 1.62		$ 1.51		$ 4.78		$ 4.53
Income per share – Diluted:
Common Stock (in Dollars per share)	$ 1.53		$ 1.43		$ 4.52		$ 4.29
Income allocated to – Basic:
Income per share – Diluted	24,493		22,638		71,971		67,793
Income allocated to – Diluted:
Common Stock	30,637		28,307		89,992		84,747
Weighted average number of shares outstanding – Basic:
Income allocated to – Basic (in Shares)	15,102		14,993		15,069		14,960
Weighted average number of shares outstanding – Diluted:
Common Stock (in Shares)	19,977		19,820		19,921		19,751
Dividends per share:
Income allocated to – Diluted (in Dollars per share)	$ 0.0375		$ 0.0375		$ 0.1125		$ 0.1125
Common Class B [Member]
Income per share – Basic:
Income per share – Basic (in Dollars per share)	$ 1.30		$ 1.21		$ 3.82		$ 3.63
Income allocated to – Basic:
Income per share – Diluted	$ 6,127		$ 5,647		$ 17,962		$ 16,880
Weighted average number of shares outstanding – Basic:
Income allocated to – Basic (in Shares)	4,722		4,675		4,701		4,656
Dividends per share:
Income allocated to – Diluted (in Dollars per share)	$ 0.0300		$ 0.0300		$ 0.0900		$ 0.0900

[1] Exclusive of depreciation on the Company's property, plant and equipment and amortization of its intangible assets.