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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2019
Basic and Diluted Weighted Average Shares Outstanding
Basic and diluted weighted average shares outstanding were as follows:
                                 
 
Three Months Ended
September 30,
   
Nine Months Ended
September 30,
 
 
2019
 
  
2018
 
  
2019
 
  
2018
 
 
(Amounts in thousands, except per share data)
 
Net income
  $
1,659
    $
4,794
    $
 
17,807
    $
10,979
 
                                 
Weighted average shares used in computing net income per share—basic
   
50,852
     
43,822
     
47,087
     
43,729
 
Effect of dilutive shares:
   
     
     
     
 
Stock options and restricted stock awards
   
957
     
651
     
843
     
511
 
Convertible senior notes
   
—  
      
1,355
     
—  
      
892
 
                                 
Dilutive potential common shares
   
957
     
2,006
     
843
     
1,403
 
                                 
Weighted average shares used in computing net income per share—diluted
   
51,809
     
45,828
     
47,930
     
45,132
 
                                 
Earnings per share:
   
     
     
     
 
Basic
  $
0.03
    $
0.11
    $
0.38
    $
0.25
 
                                 
Diluted
  $
0.03
    $
0.10
    $
 
0.37
    $
0.24