Quarterly report pursuant to Section 13 or 15(d)

Capital Transactions (Details 2)

v3.2.0.727
Capital Transactions (Details 2) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Sep. 19, 2013
Aug. 29, 2013
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Stock options              
Number of shares              
Options outstanding at the beginning of the period (in shares)         2,037    
Granted (in shares)         310    
Forfeited or cancelled (in shares)         (183)    
Exercised (in shares)         (373)    
Options outstanding at the end of the period (in shares)     1,791   1,791    
Weighted Average Exercise Price Per Share              
Options outstanding at the beginning of the period (in dollars per share)         $ 11.69    
Granted (in dollars per share)         14.27    
Forfeited or canceled (in dollars per share)         14.71    
Exercised (in dollars per share)         9.58    
Options outstanding at the end of the period (in dollars per share)     $ 12.27   $ 12.27    
Share-based compensation, additional disclosures              
Special one-time cash dividend paid per common share (in dollars per share) $ 1.50 $ 1.50          
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     $ 160 $ 719 $ 740 $ 1,616  
Related tax benefit     63 $ 284 292 $ 638  
Unrecognized share-based compensation expense     1,875   $ 1,875   $ 2,018
Weighted-average period over which the remaining compensation cost is expected to be recognized         1 year 8 months 12 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