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Stock-Based Incentive Compensation Plans (Weighted Average Assumptions To Value Employee Stock Options) (Details)
3 Months Ended9 Months Ended
Oct. 01, 2011
Sep. 25, 2010
Oct. 01, 2011
Sep. 25, 2010
Stock-Based Incentive Compensation Plans [Abstract]    
Expected volatility57.86%57.79%53.15%56.89%
Risk-free interest rate0.58%1.01%1.21%1.43%
Expected dividends0.00%0.00%0.00%0.00%
Expected life (in years)3.753.713.753.71