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Dividends and Basic Earnings Per Common Share (Tables)
 9 Months Ended
Sep. 30, 2019
Dividends and Basic Earnings Per Common Share [Abstract]  
Calculation of Basic Earnings per Share
The following table calculates the basic earnings per common share for the three and nine months ended September 30, 2019 and 2018.

  
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
 
             
(net income in thousands)
 
2019
  
2018
  
2019
  
2018
 
Net Income
 
$
13,738
  
$
12,000
  
$
41,392
  
$
32,491
 
Weighted Average Number of Common Shares Outstanding
  
787,307
   
793,418
   
786,361
   
807,129
 
Basic Earnings Per Common Share Amount
 
$
17.45
  
$
15.12
  
$
52.64
  
$
40.26