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EARNINGS PER SHARE (Tables)
 3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Analysis of Basic and Diluted Earnings Per Share
The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below:
 
 
Three Months Ended 
 March 31,
 
 
2018
 
2017
Net income
 
$
12,820

 
$
10,076

Dividends and undistributed earnings allocated to participating securities(1)
 
(40
)
 
(45
)
Net income available to common shareholders
 
$
12,780

 
$
10,031

Weighted-average common shares outstanding for basic EPS
 
15,541,975

 
15,488,848

Dilutive effect of stock-based awards(2)
 
61,405

 
79,791

Weighted-average common and potential common shares for diluted EPS
 
15,603,380

 
15,568,639

Earnings per common share(1):
 
 

 
 

Basic EPS
 
$
0.82

 
$
0.65

Diluted EPS
 
$
0.82

 
$
0.64


(1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.
(2) Represents the effect of the assumed exercise of stock options, vesting of restricted shares and vesting of restricted stock units utilizing the treasury stock method. Not included are the unvested LTIP awards as they have not met the performance criteria for the periods presented.