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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 18, 2011
Jun. 19, 2010
Jun. 18, 2011
Jun. 19, 2010
Condensed Consolidated Statements of Comprehensive Income [Abstract]        
Income Tax Effect On Unrealized hedging gains (losses) $ (61) $ (14) $ (639) $ 166
Income Tax Effect On Reclassification of realized losses to net income $ 379 $ (26) $ 680 $ (26)