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EARNINGS PER SHARE (Tables)
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Earnings per share on a basic and diluted basis
Earnings per share on a basic and diluted basis has been adjusted to give retroactive recognition to stock dividends and is calculated as follows (in thousands, except per share amounts):
 
 
Years Ended December 31,
 
 
2018
 
2017
 
2016
Basic and Diluted Earnings:
 
 
 
 
 
 
Net Income
 
$
74,138

 
$
54,312

 
$
49,349

Basic weighted-average shares outstanding
 
34,951

 
29,841

 
27,118

Add: Stock awards
 
165

 
206

 
129

Diluted weighted-average shares outstanding
 
35,116

 
30,047

 
27,247

Basic Earnings Per Share:
 
 

 
 

 
 

Net Income
 
$
2.12

 
$
1.82

 
$
1.82

Diluted Earnings Per Share:
 
 

 
 

 
 

Net Income
 
$
2.11

 
$
1.81

 
$
1.81