Quarterly report pursuant to Section 13 or 15(d)

Capital Transactions (Details 2)

v3.3.0.814
Capital Transactions (Details 2) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 19, 2014
Aug. 29, 2013
Jan. 31, 2015
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Share-based compensation, additional disclosures                
Special one-time cash dividend paid per common share (in dollars per share) $ 1.50 $ 1.50            
Stock options                
Number of shares                
Options outstanding at the beginning of the period (in shares)     2,037     2,037    
Granted (in shares)           310    
Forfeited or cancelled (in shares)           (268)    
Exercised (in shares)           (399)    
Options outstanding at the end of the period (in shares)       1,680   1,680    
Weighted Average Exercise Price Per Share                
Options outstanding at the beginning of the period (in dollars per share)     $ 11.69     $ 11.69    
Granted (in dollars per share)           14.27    
Forfeited or canceled (in dollars per share)           14.30    
Exercised (in dollars per share)           9.79    
Options outstanding at the end of the period (in dollars per share)       $ 12.20   $ 12.20    
Weighted-average assumptions used to calculate fair value of options granted                
Risk-free interest rate (as a percent)           1.50%    
Dividend yield (as a percent)           2.80%    
Stock options | Minimum                
Weighted-average assumptions used to calculate fair value of options granted                
Expected life           5 years    
Expected volatility (as a percent)           46.30%    
Stock options | Maximum                
Weighted-average assumptions used to calculate fair value of options granted                
Expected life           6 years    
Expected volatility (as a percent)           52.30%    
Time-based stock options                
Share-based compensation, related information                
Share-based compensation expense       $ 424 $ 691 $ 1,164 $ 2,307  
Related tax benefit       165 $ 273 457 $ 911  
Unrecognized share-based compensation expense       1,451   $ 1,451   $ 2,018
Weighted-average period over which the remaining compensation cost is expected to be recognized           1 year 7 months 6 days    
Time-based stock options | Maximum                
Share-based compensation, additional disclosures                
Vesting period           48 months    
Performance based stock options operating income margins                
Share-based compensation, additional disclosures                
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%    
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    
Performance based stock options sales and operating income margins                
Share-based compensation, additional disclosures                
Vesting period           2 years    
Performance based stock options sales and operating income margins | Minimum                
Share-based compensation, additional disclosures                
Operating income margin, two (as a percent)           8.00%    
Performance based stock options sales                
Share-based compensation, additional disclosures                
Vesting period based on achieving annual net sales targets           1 year    
Performance based stock options sales | Maximum                
Share-based compensation, related information                
Potential compensation expense       $ 757   $ 757    
2012 Stock Incentive Plan                
Share Based Compensation                
Number of shares authorized under the plan               1,500
Additional number of shares authorized under the plan     1,500          
2012 Stock Incentive Plan | Time-based stock options                
Number of shares                
Granted (in shares)           310    
Weighted Average Exercise Price Per Share                
Granted (in dollars per share)           $ 14.27    
Share-based compensation, additional disclosures                
Expiration period           10 years    
Weighted-average assumptions used to calculate fair value of options granted                
Weighted-average grant date fair value (in dollars per share)           $ 4.92    
2009 Incentive Plan | Maximum                
Share Based Compensation                
Number of shares authorized under the plan       400   400