Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details)

v3.2.0.727
Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jul. 04, 2015
Jun. 28, 2014
Jul. 04, 2015
Jun. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grant (in shares) 5,300,000   5,300,000  
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]        
Allocated share-based compensation expense $ 0.1 $ 0.5 $ 0.2 $ 0.8
Non-Vested Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated share-based compensation expense $ 3.4 $ 2.7 $ 7.0 $ 4.9
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0 0 200,000 300,000
Unrecognized compensation cost $ 12.1   $ 12.1  
Unrecognized compensation cost, period for recognition     1 year 2 months 12 days  
Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated share-based compensation expense 2.0 $ 2.2 $ 3.2 $ 3.8
Unrecognized compensation cost $ 2.0   $ 2.0  
Unrecognized compensation cost, period for recognition     12 months  
Expected life of award     2 years 10 months 24 days 2 years 10 months 24 days
Performance Shares [Member] | Certain senior executives [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     100,000 100,000
Weighted average price at grant date (in dollars per share) $ 56.17 $ 41.38 $ 56.17 $ 41.38
Risk-free interest rate     1.00% 0.60%
Dividend yield     0.90% 1.00%
Volatility factor     39.20% 43.70%
Performance Shares [Member] | Certain officers and certain senior managers [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     22,990 24,600
Weighted average price at grant date (in dollars per share) $ 52.39 $ 40.44 $ 52.39 $ 40.44