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Nature of Operations and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Computation of Basic and Diluted Earnings Per Share
The following table shows computation of basic and diluted earnings per share.
 
 
 
Years Ended December 31
 
 
 
2018
 
 
 
2017
 
 
 
2016
 
Basic earnings per share
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net income
 
$
53,117
 
 
 
$
33,117
 
 
 
$
23,912
 
Less: Preferred stock dividends
 
 
—
 
 
 
 
—
 
 
 
 
42
 
Net income available to common shareholders
 
$
53,117
 
 
 
$
33,117
 
 
 
$
23,870
 
Weighted average common shares outstanding
(1)
 
 
38,347,059
 
 
 
 
34,553,736
 
 
 
 
29,981,592
 
Basic earnings per share
 
$
1.39
 
 
 
$
0.96
 
 
 
$
0.80
 
Diluted earnings per share
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net income available to common shareholders
 
$
53,117
 
 
 
$
33,117
 
 
 
$
23,870
 
Weighted average common shares outstanding
(1)
 
 
38,347,059
 
 
 
 
34,553,736
 
 
 
 
29,981,592
 
Effect of dilutive securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Restricted stock
 
 
36,185
 
 
 
 
46,981
 
 
 
 
39,829
 
Stock options
 
 
111,987
 
 
 
 
159,721
 
 
 
 
102,193
 
Weighted average common shares outstanding
 
 
38,495,231
 
 
 
 
34,760,438
 
 
 
 
30,123,614
 
 
 
$
1.38
 
 
 
$
0.95
 
 
 
$
0.79
 
 
(1)
 
Adjusted for 3:2 stock split on June 15, 2018