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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2021
Accounting Policies [Abstract]  
Computation of Basic EPS to Dilutive EPS The following table reconciles the computation of basic EPS to diluted EPS:
 
     Net
Earnings
(in thousands)		      Weighted
Average
Shares		      Per Share
Amount		  
For the three-months ended March 31, 2021:
                           
Net earnings per share, basic
    $ 56,918        142,146,275      $ 0.40  
Effect of stock options and stock grants
      —          856,383        —    
    
 
 
     
 
 
     
 
 
  
Net earnings per share, diluted
    $ 56,918        143,002,658      $ 0.40  
    
 
 
     
 
 
     
 
 
  
 


 
  
Net
Earnings
(in thousands)
 
  
Weighted
Average
Shares
 
  
Per Share
Amount
 
For the three-months ended March 31, 2020:
  
      
  
      
  
      
Net earnings per share, basic
  
$
37,232
 
  
 
142,118,864
 
  
$
0.26
 
Effect of stock options and stock grants
  
 
—  
 
  
 
616,344
 
  
 
—  
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Net earnings per share, diluted
  
$
37,232
 
  
 
142,735,208
 
  
$
0.26