Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Aug. 30, 2014		Aug. 31, 2013		Aug. 25, 2012
Revenues	$ 1,394,897		$ 1,355,515		$ 1,256,289
Operating expenses:
Cost of revenues (1)	858,306	[1]	836,174	[1]	797,944	[1]
Selling and administrative expenses (1)	271,564	[1]	263,531	[1]	240,798	[1]
Depreciation and amortization	71,752		69,607		66,439
Total operating expenses	1,201,622		1,169,312		1,105,181
Income from operations	193,275		186,203		151,108
Other (income) expense:
Interest expense	772		1,651		2,132
Interest income	(3,131)		(3,201)		(2,738)
Foreign exchange loss	283		144		980
Total other (income) expense	(2,076)		(1,406)		374
Income before income taxes	195,351		187,609		150,734
Provision for income taxes	75,426		70,924		55,745
Net income	119,925		116,685		94,989
Income per share – Diluted:
Common Stock (in Dollars per share)	$ 5.95		$ 5.81		$ 4.76
Income allocated to – Basic:
Income allocated to – Basic	119,925		116,685		94,989
Income allocated to – Diluted:
Common Stock	118,626		114,927		93,358
Weighted average number of shares outstanding – Diluted:
Common Stock (in Shares)	19,939		19,789		19,616
Common Class A [Member]
Income per share – Basic:
Income per share – Basic (in Dollars per share)	$ 6.29		$ 6.14		$ 5.02
Income allocated to – Basic:
Income allocated to – Basic	94,849		91,916		74,643
Weighted average number of shares outstanding – Basic:
Weighted average number of shares outstanding – Basic (in Shares)	15,080		14,975		14,882
Dividends per share:
Dividends per share (in Dollars per share)	$ 0.15		$ 0.15		$ 0.15
Common Class B [Member]
Income per share – Basic:
Income per share – Basic (in Dollars per share)	$ 5.03		$ 4.91		$ 4.01
Income allocated to – Basic:
Income allocated to – Basic	$ 23,705		$ 22,913		$ 18,630
Weighted average number of shares outstanding – Basic:
Weighted average number of shares outstanding – Basic (in Shares)	4,711		4,666		4,643
Dividends per share:
Dividends per share (in Dollars per share)	$ 0.12		$ 0.12		$ 0.12

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