Fair Value Measurements (Fair Values Of Non-Financial Assets Measured At Fair Value On Non-Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified		3 Months Ended		12 Months Ended																12 Months Ended
	Aug. 26, 2012	Aug. 26, 2012 Segment, Continuing Operations	Aug. 26, 2012 Segment, Discontinued Operations	May 27, 2012 Fair Value, Measurements, Nonrecurring		Aug. 26, 2012 Fair Value, Measurements, Nonrecurring		Aug. 26, 2012 Fair Value, Measurements, Nonrecurring Quoted prices in active market for identical assets (liabilities) (Level 1)		May 27, 2012 Fair Value, Measurements, Nonrecurring Quoted prices in active market for identical assets (liabilities) (Level 1)		Aug. 26, 2012 Fair Value, Measurements, Nonrecurring Significant other observable inputs (Level 2)		May 27, 2012 Fair Value, Measurements, Nonrecurring Significant other observable inputs (Level 2)		Aug. 26, 2012 Fair Value, Measurements, Nonrecurring Significant unobservable inputs (Level 3)		May 27, 2012 Fair Value, Measurements, Nonrecurring Significant unobservable inputs (Level 3)		May 27, 2012 Fair Value, Measurements, Nonrecurring Segment, Continuing Operations
Long-lived assets held for disposal				$ 3.2	[1]	$ 0.6	[2]	$ 0	[2]	$ 0	[1]	$ 0	[2]	$ 0	[1]	$ 0.6	[2]	$ 3.2	[1]
Long-lived assets held and used				0.7	[3]	0.9	[4]	0	[4]	0	[3]	0	[4]	0	[3]	0.9	[4]	0.7	[3]
Total				3.9		1.5		0		0		0		0		1.5		3.9
Carrying value of long-lived assets held for disposal				3.5		0.7
Fair value of long-lved assets held for diposal	0.6
Impairment of long-lived assets to be disposed of		0.6	0.1	0.3
Carrying value of long-lived assets held and used				1.1		1.5
Fair value of long-lived assets held and used	0.9
Impairment of long-lived assets held and used																				$ 0.4

[1] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2012, long-lived assets held for disposal with a carrying amount of $3.5 million were written down to their fair value of $3.2 million, based on a review of comparable assets, resulting in an impairment charge of $0.3 million, which was included in losses from discontinued operation

[2] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2013, long-lived assets held for disposal with a carrying amount of $0.7 million were written down to their fair value of $0.6 million, based on a review of comparable assets, resulting in an impairment charge of $0.1 million, which was included in earnings from continuing operations.

[3] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2012, long-lived assets held and used with a carrying amount of $1.1 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 $0.4 million, which was included in earnings from continuing operations.

[4] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2013, long-lived assets held and used with a carrying amount of $1.5 million were written down to their fair value of $0.9 million, based on a review of comparable assets, resulting in an impairment charge of $0.6 million, which was included in earnings from continuing operations.