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Earnings Per Share
 12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share
23.  Earnings Per Share


The following table sets forth the computation of basic and diluted earnings per share:

Year Ended December 31
(in thousands except per share data)
  
2023
    
2022
    
2021
  
Numerator:
                  
Net income
  
$
78,004
    
$
81,814
    
$
87,939
  
                         
Denominator:
                        
Basic earnings per share:
                        
Weighted average shares
    
17,887
      
17,836
      
17,786
  
Diluted earnings per share:
                        
Dilutive effect of equity grants
    
13
      
15
      
18
  
Adjusted weighted average shares
    
17,900
      
17,851
      
17,804
  
                         
Earnings per share:
                        
Basic earnings per share
  
$
4.36
    
$
4.59
    
$
4.94
  
Diluted earnings per share
    
4.36
      
4.58
      
4.94
  


There were no options to purchase common shares that were excluded from the diluted calculations above for the years ended December 31, 2023, 2022, and 2021.  In addition to in-the-money stock options, unvested restricted stock grants were also used in the calculation of diluted earnings per share based on the treasury method.