Fair Value Measurements (Fair Values Of Non-Financial Assets Measured At Fair Value On Non-Recurring Basis) (Details) (USD $)	3 Months Ended			12 Months Ended
	Aug. 28, 2011	Aug. 29, 2010	Aug. 28, 2011 Fair Value, Measurements, Nonrecurring [Member]	May 29, 2011 Fair Value, Measurements, Nonrecurring [Member]		May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Segment, Continuing Operations [Member]	May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Segment, Discontinued Operations [Member]	May 29, 2011 Quoted Prices In Active Market For Identical Assets (Liabilities) (Level 1) [Member] Fair Value, Measurements, Nonrecurring [Member]		May 29, 2011 Significant Other Observable Inputs (Level 2) [Member] Fair Value, Measurements, Nonrecurring [Member]		May 29, 2011 Significant Unobservable Inputs (Level 3) [Member] Fair Value, Measurements, Nonrecurring [Member]
Long-lived assets held for disposal				$ 4,400,000	[1]			$ 0	[1]	$ 0	[1]	$ 4,400,000	[1]
Long-lived assets held and used				700,000	[2]			0	[2]	0	[2]	700,000	[2]
Total				5,100,000				0		0		5,100,000
Adjustments to fair value of non financial instrument measured on a non-recurring basis	0	2,800,000	0
Carrying value of long-lived assets held for disposal				7,000,000
Impairment of long-lived assets to be disposed of				2,600,000		1,900,000	700,000
Carrying value of long-lived assets held and used				2,800,000
Impairment of Long-Lived Assets Held-for-use						$ 2,100,000

[1] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2011, long-lived assets held for disposal with a carrying amount of $7.0 million were written down to their fair value of $4.4 million, based on a review of comparable assets, resulting in an impairment charge of $2.6 million, of which $1.9 million was included in earnings from continuing operations and $0.7 million was included in losses from discontinued operations

[2] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2011, long-lived assets held and used with a carrying amount of $2.8 million were written down to their fair value of $0.7 million, based on a review of comparable assets, resulting in an impairment charge of $2.1 million, which was included in earnings from continuing operations