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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Reconciliation of Basic and Diluted Earnings Per Share

The following is a reconciliation of the basic and diluted earnings per share computation:

 

     Year Ended December 31,  
     2017      2016      2015  

Net income

   $ 27,199      $ 26,155      $ 80,052  
  

 

 

    

 

 

    

 

 

 
     (shares in thousands)  

Shares of common stock and common stock equivalents:

        

Weighted average common shares used in basic computation

     134,614        134,401        137,242  

Dilutive effect of common stock equivalents

     1,389        1,138        1,583  
  

 

 

    

 

 

    

 

 

 

Weighted average common shares used in dilutive computation

     136,003        135,539        138,825  
  

 

 

    

 

 

    

 

 

 

Basic earnings per share

   $ 0.20      $ 0.19      $ 0.58  

Diluted earnings per share

   $ 0.20      $ 0.19      $ 0.58