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Property, Plant And Equipment (Tables)
12 Months Ended
Sep. 01, 2012
Property, Plant And Equipment [Abstract]  
Summary Of Property, Plant And Equipment
     
  Number of Years   September 1,
2012
  August 27,
2011
Land         $ 16,039     $ 11,555  
Building and improvements     40       81,266       80,019  
Leasehold improvements     The lesser of
lease term or 31.5
      3,993       5,420  
Furniture, fixtures and equipment     3 - 15       120,724       134,318  
Automobiles.     5       447       548  
Computer systems, equipment and software     3 - 5       174,349       118,155  
                396,818       350,015  
Less: accumulated depreciation and amortization.           222,221       201,202  
Total         $ 174,597     $ 148,813