Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details)

v2.4.0.6
Share-Based Compensation (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
years
Oct. 01, 2011
years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 13.1   13.1  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) 2.2   2.2  
Stock Appreciation Rights (SARs) [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 0 0.2 0.4 1.1
Allocated Share-based Compensation Expense $ 1.7 $ 2.9 $ 5.2 $ 9.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 12.70 $ 10.60
Risk-free interest rate     1.10% 2.50%
Dividend yield     0.20% 0.20%
Volatility factor     58.30% 53.70%
Weighted average expected life, minimum (in years)     5.2 5.2
Weighted average expected life, maximum (in years)     6.7 6.7
Non-Vested Stock Awards [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 0 0 0.3 0.2
Allocated Share-based Compensation Expense 1.6 0.8 4.3 2.6
Employee Service Share-based Compensation, Non-vested Awards, Total Compensation Cost Not Yet Recognized 5.1   5.1  
Employee Service Share-based Compensation, Non-vested Awards, Total Compensation Cost Not Yet Recognized (in years)     1.1  
Performance Awards [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 0.6   1.7  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 26.81  
Risk-free interest rate     0.40%  
Dividend yield     0.20%  
Volatility factor     67.90%  
Weighted average expected life (in years)     2.9  
Employee Service Share-based Compensation, Non-vested Awards, Total Compensation Cost Not Yet Recognized $ 1.1   $ 1.1  
Employee Service Share-based Compensation, Non-vested Awards, Total Compensation Cost Not Yet Recognized (in years)     0.9  
Director [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of premium paid out to directors in deferred company common stock     20.00%