Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 01, 2013	Sep. 01, 2012
Gross Carrying Amount, Total	$ 217,538	$ 100,143
Accumulated Amortization	(57,731)	(48,931)
Trademarks And License Agreements [Member]
Gross Carrying Amount, Indefinite	14,646	7,055
Customer Relationships [Member]
Gross Carrying Amount	175,064	68,160
Accumulated Amortization	(40,263)	(33,826)
Noncompete Agreements [Member]
Gross Carrying Amount	1,348	1,348
Accumulated Amortization	(777)	(395)
Contractual Rights [Member]
Average Useful Life (in years)	10 years
Gross Carrying Amount	23,100	23,100
Accumulated Amortization	(16,170)	(14,437)
Trademarks [Member]
Gross Carrying Amount	3,380	480
Accumulated Amortization	$ (521)	$ (273)
Minimum [Member] | Customer Relationships [Member]
Average Useful Life (in years)	5 years
Minimum [Member] | Noncompete Agreements [Member]
Average Useful Life (in years)	2 years
Minimum [Member] | Trademarks [Member]
Average Useful Life (in years)	1 year
Maximum [Member] | Customer Relationships [Member]
Average Useful Life (in years)	18 years
Maximum [Member] | Noncompete Agreements [Member]
Average Useful Life (in years)	3 years
Maximum [Member] | Trademarks [Member]
Average Useful Life (in years)	5 years