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Facility Closure Reserves (Lease Termination Component Of The Facilities Closure Reserve) (Details) (USD $)
In Thousands
Sep. 24, 2011
Dec. 25, 2010
Facility Closure Reserves [Abstract]  
Estimated future lease obligations$ 109,222 
Less: anticipated sublease income(55,466) 
Total$ 53,756$ 61,673