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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Earnings Per Share
 
Three Months Ended
March 31,
  
   
2021
    
2019
  
Numerator:
            
Common:
            
Distributed earnings
  
$
3,717
    
$
3,459
  
Undistributed earnings
    
14,262
      
(1,782
)
Basic
    
17,979
      
1,677
  
Class A Common earnings
    
1,427
      
142
  
Diluted
  
$
19,406
    
$
1,819
  
                 
Class A Common:
                
Distributed earnings
  
$
270
    
$
291
  
Undistributed earnings
    
1,157
      
(149
)
   
$
1,427
    
$
142
  
Denominator:
                
Common:
                
Weighted average shares outstanding - basic
    
16,793
      
17,460
  
Assumed conversion of Class A Common Stock
    
1,431
      
1,532
  
Dilutive options, awards and common stock equivalents
    
507
      
274
  
                 
Total weighted-average diluted Common Stock
    
18,731
      
19,266
  
                 
Class A Common:
                
Weighted average shares outstanding
    
1,431
      
1,532
  
                 
Basic earnings per share:
                
Common Stock
  
$
1.07
    
$
0.10
  
Class A Common Stock
  
$
1.00
    
$
0.09
  
                 
Diluted earnings per share:
                
Common Stock
  
$
1.04
    
$
0.09
  
Class A Common Stock
  
$
0.98
    
$
0.09