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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 01, 2012
Jun. 02, 2012
Aug. 27, 2011
May 28, 2011
Sep. 01, 2012
Aug. 27, 2011
Fair Value Measurements            
Carrying value of long-lived assets $ 1,144   $ 3,999   $ 1,144 $ 3,999
Fair value of long-lived assets 601   2,608   601 2,608
Impairment charges 47 496 657 734 543 1,391
Nonrecurring basis | Level 3
           
Non-financial assets measured on a non-recurring basis            
Fair value of long-lived assets held for use 601   1,484   601 1,484
Nonrecurring basis | Level 2
           
Non-financial assets measured on a non-recurring basis            
Fair value of long-lived assets held for use     1,124     1,124
Nonrecurring basis | Level 1
           
Non-financial assets measured on a non-recurring basis            
Carrying value of total long-term indebtedness 6,035,382       6,035,382  
Estimated fair value of total long-term indebtedness 6,212,349       6,212,349  
Nonrecurring basis | Total
           
Non-financial assets measured on a non-recurring basis            
Fair value of long-lived assets held for use $ 601   $ 2,608   $ 601 $ 2,608