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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Summary of Components Used to Calculate Basic and Diluted Earnings Per Share
Presented below is a summary of the components used to calculate basic and diluted earnings per share.
 
Years Ended December 31,
(dollars in thousands, shares in thousands)
2017
 
2016
 
2015
Net income available to common shareholders
$
73,548

 
$
72,100

 
$
40,847

 
 
 
 
 
 
Weighted average number of common shares outstanding
36,828

 
34,347

 
31,762

Effect of dilutive stock options
62

 
108

 
121

Effect of dilutive restricted stock awards
254

 
247

 
244

Weighted average number of common shares outstanding used to calculate diluted earnings per share
37,144

 
34,702

 
32,127