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 Share data, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Authorized number of shares (in shares) 13,100,000  
Number of shares available for grant (in shares) 1,900,000  
Percentage of premium paid out in deferred company common stock 20.00%  
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, SARs, Grants in Period, Weighted Average Grant Date Fair Value   $ 12.70
Risk-free interest rate   1.10%
Dividend yield   0.20%
Volatility factor (A)   58.30% [1]
Share-based compensation expense $ 1.3 $ 1.7
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0 400,000
Stock Appreciation Rights (SARs) [Member] | Minimum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average expected life, minimum (in years)   5 years 2 months 12 days
Stock Appreciation Rights (SARs) [Member] | Maximum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average expected life, minimum (in years)   6 years 8 months 12 days
Non-Vested Stock Awards [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 2.5 1.4
Unrecognized compensation cost 11.2  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 200,000 200,000
Unrecognized compensation cost, period for recognition 1 year 7 months 6 days  
Performance Awards [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 0.8 0.4
Performance Awards [Member] | Minimum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average expected life, minimum (in years) 2 years 10 months 24 days 2 years 10 months 24 days
Performance Awards [Member] | 2013 [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost 5.3  
Unrecognized compensation cost, period for recognition 1 year 4 months 24 days  
Performance Awards [Member] | 2012 [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost $ 0.3  
Unrecognized compensation cost, period for recognition 1 year 7 months 6 days  
Unvested performance based awards 22,000  
Performance Awards [Member] | Certain senior executives [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average price at grant date (in dollars per share) $ 35.93 $ 26.81
Risk-free interest rate 0.40% 0.40%
Dividend yield 0.10% 0.20%
Volatility factor (A) 53.00% 67.90%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 100,000 100,000
Performance Awards [Member] | Non-executive officers and certain senior managers [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average price at grant date (in dollars per share) $ 34.65  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 26,000  
[1] The Company uses a combination of implied and historical volatility in calculating the fair value of each grant.