Fair Value Measurements (Details) (USD $) In Thousands	Aug. 27, 2011	Aug. 28, 2010
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	$ 11,872
Other long-term assets	61,259
Fair Value, Measurements, Recurring [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	11,872	16,303
Other long-term assets	61,259	56,398
Accrued expenses and other		9,979
Total	73,131
Total		62,722
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	11,872	11,307
Other long-term assets	55,390	47,725
Accrued expenses and other		0
Total	67,262
Total		59,032
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	0	4,996
Other long-term assets	5,869	8,673
Accrued expenses and other		9,979
Total	5,869
Total		3,690
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Company's assets and liabilities measured at fair value on a recurring basis
Other current assets	0	0
Other long-term assets	0	0
Accrued expenses and other		0
Total	0
Total		$ 0