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Income Taxes (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 29, 2013
Sep. 23, 2012
Sep. 29, 2013
Sep. 23, 2012
Income Tax Disclosure [Abstract]        
Income tax expense/(benefit) $ 2,578,000 $ (3,187,000) $ 21,473,000 $ 28,446,000
(Loss)/income before income taxes (2,722,000) (6,166,000) 39,643,000 74,078,000
Effective tax rate, continuing operations   51.70% 54.20% 38.40%
Remeasurement of deferred tax assets 1,500,000      
Unrecognized tax benefits that would impact effective tax rate $ 16,000,000   $ 16,000,000