Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details)

v2.4.0.6
Share-Based Compensation (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Maximum
     
Share-based compensation, related information      
Potential compensation expense $ 1,100    
Stock options
     
Number of shares      
Options outstanding at the beginning of the period (in shares) 1,784    
Granted (in shares) 548    
Expired (in shares) (25)    
Exercised (in shares) (64)    
Options outstanding at the end of the period (in shares) 2,243    
Weighted Average Exercise Price Per Share      
Options outstanding at the beginning of the period (in dollars per share) $ 11.81    
Granted (in dollars per share) $ 15.01    
Expired (in dollars per share) $ 14.52    
Exercised (in dollars per share) $ 9.94    
Options outstanding at the end of the period (in dollars per share) $ 12.61    
Weighted-average assumptions used to calculate fair value of options granted      
Risk-free interest rate (as a percent) 0.80%    
Dividend yield (as a percent) 2.60%    
Stock options | Maximum
     
Weighted-average assumptions used to calculate fair value of options granted      
Expected life 6 years    
Expected volatility (as a percent) 58.10%    
Stock options | Minimum
     
Weighted-average assumptions used to calculate fair value of options granted      
Expected life 5 years    
Expected volatility (as a percent) 56.10%    
Time-based stock options
     
Share-based compensation, related information      
Share-based compensation expense 1,074 313  
Related tax benefits 424 125  
Unrecognized share-based compensation expense 4,379   2,715
Weighted-average period over which the remaining compensation cost is expected to be recognized 2 years 2 months 12 days    
Time-based stock options | Maximum
     
Share-based compensation, additional disclosures      
Vesting period 48 months    
Performance based stock options
     
Share-based compensation, additional disclosures      
Vesting period 2 years    
Operating income margin, one (as a percent) 6.00%    
Operating income margin, two (as a percent) 8.00%    
Operating income margin, three (as a percent) 10.00%    
Vesting period based on achieving annual net sales targets 1 year    
Period of time during which operating income margins must be achieved in order to vest in performance based stock options 12 months    
Consecutive period of time used to assess operating income margins which determine vesting 15 months    
Share-based compensation, related information      
Share-based compensation expense 0 323  
Related tax benefits 0 128  
Unrecognized share-based compensation expense     $ 0
2012 Incentive Plan | Stock options
     
Number of shares      
Granted (in shares) 548    
Weighted Average Exercise Price Per Share      
Granted (in dollars per share) $ 15.01    
Share-based compensation, additional disclosures      
Weighted-average grant date fair value (in dollars per share) $ 6.17    
Expiration period 10 years