Quarterly report pursuant to Section 13 or 15(d)

Capital Transactions (Details 3)

v3.2.0.727
Capital Transactions (Details 3) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Sep. 19, 2014
Sep. 19, 2013
Aug. 29, 2013
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Stock options                
Share Based Compensation                
Outstanding options to purchase (in shares)       1,791,000   1,791,000   2,037,000
Exercisable (in shares)       993,000   993,000   1,069,000
Expected to vest (in shares)       655,000   655,000   794,000
Aggregate Intrinsic value, outstanding       $ 3,238   $ 3,238   $ 6,801
Aggregate Intrinsic value, exercisable       2,669   2,669   4,928
Aggregate Intrinsic value, expected to vest       541   $ 541   1,779
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%    
RSUs                
Share-based compensation, additional disclosures                
Share-based compensation expense       583 $ 269 $ 1,339 $ 466  
Related tax benefits       230 $ 106 529 $ 184  
Unrecognized share-based compensation expense       3,109   $ 3,109   $ 849
Weighted-average period over which the remaining compensation expense is expected to be recognized           1 year 10 months 24 days    
Minimum statutory withholding requirement paid on behalf of employees (in shares)           8    
Performance-based RSUs                
Share-based compensation, additional disclosures                
Vesting period based on achieving operating income and earnings per share targets           1 year    
Performance-based RSUs | Maximum                
Share-based compensation, additional disclosures                
Potential compensation expense       $ 3,600   $ 3,600    
SARs                
Share-based compensation, additional disclosures                
Special one-time cash dividend paid per common share (in dollars per share) $ 1.50   $ 1.50          
2012 Stock Incentive Plan | RSUs                
Number of Shares                
Units outstanding at the beginning of the period (in shares)           180,000    
Granted (in shares)           593,000    
Issued (in shares)           (30,000)    
Forfeited or canceled (in shares)           (75,000)    
Units outstanding at the end of the period (in shares)       668,000   668,000    
Weighted Average Grant Date Fair Value                
Units outstanding at the beginning of the period (in dollars per share)           $ 15.09    
Granted (in dollars per share)           12.76    
Issued (in dollars per share)           13.63    
Forfeited or canceled (in dollars per share)           12.89    
Units outstanding at the end of the period (in dollars per share)       $ 12.59   $ 12.59    
Share-based compensation, additional disclosures                
Discount for lack of marketability ( as a percent)           17.50%    
2012 Stock Incentive Plan | RSUs | Minimum                
Share-based compensation, additional disclosures                
Vesting period           12 months    
Vesting period based on achieving operating income and earnings per share targets           3 years    
2012 Stock Incentive Plan | RSUs | Maximum                
Share-based compensation, additional disclosures                
Vesting period           48 months    
Vesting period based on achieving operating income and earnings per share targets           6 years    
2012 Stock Incentive Plan | RSUs | Board of Directors                
Number of Shares                
Number of shares subject to restriction period       43,000   43,000   32,000
Restriction period           2 years    
2012 Stock Incentive Plan | Performance-based RSUs                
Weighted-average assumptions used to calculate fair value of options granted                
Weighted-average grant date fair value (in dollars per share)           $ 12.13    
2012 Stock Incentive Plan | Time-based RSUs                
Weighted-average assumptions used to calculate fair value of options granted                
Weighted-average grant date fair value (in dollars per share)           $ 13.28    
2012 Stock Incentive Plan | SARs                
Number of Shares                
Units outstanding at the beginning of the period (in shares)           30,000    
Forfeited or canceled (in shares)           (10,000)    
Units outstanding at the end of the period (in shares)       20,000   20,000    
Weighted Average Grant Date Fair Value                
Units outstanding at the beginning of the period (in dollars per share)           $ 5.47    
Forfeited or canceled (in dollars per share)           5.86    
Units outstanding at the end of the period (in dollars per share)       $ 5.27   $ 5.27    
Share-based compensation, additional disclosures                
Number of shares of common stock used for determining the fair value, or strike price, of grants       1   1    
Share-based compensation expense       $ 3   $ 6    
Related tax benefits       2   3    
Unrecognized share-based compensation expense       $ 67   $ 67   $ 150
Weighted-average period over which the remaining compensation expense is expected to be recognized           2 years 1 month 6 days    
2012 Stock Incentive Plan | SARs | Minimum                
Share-based compensation, additional disclosures                
Vesting period           12 months    
2012 Stock Incentive Plan | SARs | Maximum                
Share-based compensation, additional disclosures                
Vesting period           48 months