Summary Of Significant Accounting Policies (Useful Life By Asset Category) (Details) | 12 Months Ended |
|---|---|
Aug. 28, 2011
years | |
Building and Improvements [Member] | |
| Property and equipment, useful life, minimum | 5 |
| Property and equipment, useful life, maximum | 50 |
Equipment and Fixtures [Member] | |
| Property and equipment, useful life, minimum | 3 |
| Property and equipment, useful life, maximum | 20 |