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Share-Based Compensation (Tables)
9 Months Ended
Oct. 01, 2011
Share-Based Compensation (Details) [Abstract] 
Weighted average assumptions used to estimate fair value
The weighted average fair values of individual SARs granted were $10.60 and $5.65 during the nine months ending October 1, 2011 and October 2, 2010, respectively.  The Company estimated the fair value of each grant on the date of grant using the Black-Scholes-Merton pricing model, utilizing the following weighted average assumptions for 2011 and 2010:

 
2011
 
2010
       
Risk-free interest rate
2.5%
 
2.8%
Dividend yield
0.2%
 
0.7%
Volatility factor
53.7%
 
53.0%
Weighted average expected life
5.2 – 6.7 years
 
5.8 – 6.6 years