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Equity-Based Compensation (Weighted-Average Assumptions Used For Grants Of Stock Options And SARs) (Details) (USD $)
6 Months Ended
Jul. 02, 2011
Jul. 03, 2010
Equity-Based Compensation    
Expected dividend yield 0.00% 0.00%
Forfeiture rate 11.50% 9.78%
Volatility 35.33% 39.50%
Risk free interest rate 2.01% 2.26%
Risk free interest rate, minimum 0.01% 0.06%
Risk free interest rate, maximum 3.18% 3.41%
Expected weighted-average life, in years 5.42 5.36
Fair value of options and SARs granted $ 5,347,000 $ 6,527,000
Weighted-average grant date fair value of options and SARs granted $ 14.39 $ 10.65