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Amounts Applicable to Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 30, 2012
Dec. 25, 2011
Dec. 26, 2010
Acquisitions Investments and Dispositions [Abstract]      
Revenues     $ 32,710
Pretax (loss)/income     (758)
Net (loss)/income 0 0 (322)
Gains (after tax) $ 0 $ 0 $ 21,195