Consolidated Statements of Income - USD ($) shares in Thousands		12 Months Ended
		Aug. 27, 2016	Aug. 29, 2015	Aug. 30, 2014
Common Class A [Member]
Income per share – Basic:
Income per share – Basic (in dollars per share)		$ 6.51	$ 6.50	$ 6.29
Income per share – Diluted:
Income per share – Diluted (in dollars per share)		$ 6.17	$ 6.15	$ 5.95
Income allocated to – Basic:
Income allocated to – Basic		$ 99,282,000	$ 98,665,000	$ 94,849,000
Income allocated to – Diluted:
Income allocated to – Diluted		$ 124,409,000	$ 123,472,000	$ 118,626,000
Weighted average number of shares outstanding – Basic:
Weighted average number of shares outstanding – Basic (in shares)		15,245	15,182	15,080
Weighted average number of shares outstanding – Diluted:
Weighted average number of shares outstanding – Diluted (in shares)		20,154	20,079	19,939
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)		$ 5.21	$ 5.20	$ 5.03
Income allocated to – Basic:
Income allocated to – Basic		$ 25,093,000	$ 24,761,000	$ 23,705,000
Weighted average number of shares outstanding – Basic:
Weighted average number of shares outstanding – Basic (in shares)		4,816	4,763	4,711
Dividends per share:
Dividends per share (in dollars per share)		$ 0.12	$ 0.12	$ 0.12
Revenues		$ 1,468,046,000	$ 1,456,605,000	$ 1,394,897,000
Cost of revenues	[1]	900,427,000	884,664,000	858,306,000
Selling and administrative expenses	[1]	284,847,000	294,444,000	271,564,000
Depreciation and amortization		81,612,000	77,113,000	71,752,000
Total operating expenses		1,266,886,000	1,256,221,000	1,201,622,000
Income from operations		201,160,000	200,384,000	193,275,000
Interest expense		927,000	873,000	772,000
Interest income		(3,470,000)	(3,310,000)	(3,131,000)
Foreign exchange loss		332,000	1,553,000	283,000
Total other (income) expense		(2,211,000)	(884,000)	(2,076,000)
Income before income taxes		203,371,000	201,268,000	195,351,000
Provision for income taxes		78,345,000	76,969,000	75,426,000
Net income		$ 125,026,000	$ 124,299,000	$ 119,925,000
Income per share – Diluted (in dollars per share)		$ 6.17	$ 6.15	$ 5.95
Income allocated to – Diluted		$ 124,409,000	$ 123,472,000	$ 118,626,000
Weighted average number of shares outstanding – Diluted (in shares)		20,154	20,079	19,939

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