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Earnings Per Share
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Earnings Per Share

6. Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:

  Three Months Nine Months
  Ended September 30 Ended September 30
(In Thousands) 2013 2012 2013 2012
Weighted average shares outstanding used        
to compute basic earnings per share 32,201 32,052 32,155 32,038
Incremental dilutive shares attributable to stock        
options and restricted stock 457 49 436 160
Shares used to compute diluted earnings        
per share 32,658 32,101 32,591 32,198

 

     Incremental shares attributable to stock options and restricted stock are computed using the average market price during the related period. During the three and nine months ended September 30, 2013 average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 60,100 and 40,056, respectively, and for the three and nine months ended September 30, 2012, average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 1,023,733 and 692,600, respectively.