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Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 24, 2012
Jun. 26, 2011
Jun. 24, 2012
Jun. 26, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Current period other comprehensive income (loss), tax $ (3) $ 0 $ (51) $ 89