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Earnings Per Share
9 Months Ended
Sep. 30, 2019
Earnings Per Share [Abstract]  
Earnings Per Share

6. Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted average shares outstanding. Diluted earnings per share is calculated using the treasury stock method by dividing net income by the total weighted average shares of common stock outstanding and restricted stock awards.  The computations of basic and diluted net income per share were as follows (in thousands, except per share amounts):

  
Three Months Ended September 30,
  
Nine Months Ended September 30,
 
  
2019
  
2018
  
2019
  
2018
 
Basic:
            
Net income
 
$
13,626
  
$
35,016
  
$
57,535
  
$
93,859
 
Weighted average shares outstanding
  
26,987
   
28,677
   
27,612
   
28,789
 
                 
Basic net income per share
 
$
0.50
  
$
1.22
  
$
2.08
  
$
3.26
 
                 
Diluted:
                
Net income
 
$
13,626
  
$
35,016
  
$
57,535
  
$
93,859
 
                 
Weighted average share outstanding
  
26,987
   
28,677
   
27,612
   
28,789
 
Restricted stock awards
  
106
   
62
   
64
   
35
 
Total
  
27,093
   
28,739
   
27,676
   
28,824
 
                 
Diluted net income per share
 
$
0.50
  
$
1.22
  
$
2.08
  
$
3.26