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Property, Plant And Equipment (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Aug. 31, 2013
Sep. 01, 2012
Aug. 27, 2011
Property, Plant And Equipment [Abstract]      
Capitalized interest, net of accumulated amortization $ 931 $ 973  
Depreciation expense $ 36,169 $ 24,676 $ 21,470