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Consolidated Balance Sheets Parenthetical (unaudited) (USD $)
In Thousands, except Share data
Jun. 26, 2011
Dec. 26, 2010
Current assets:    
Allowance for doubtful accounts $ 1,077 $ 1,837
Accumulated amortization and depreciation of property, plant, and equipment $ 604,844 $ 612,847
Shareholder's deficit:    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 1,000 1,000
Common stock, shares outstanding 100 100