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Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]  
Summary of Computation of Basic and Diluted Earnings Per Share
The following table shows computation of basic and diluted earnings per share.
 
 
 
 
Three Months Ended

March 31
 
 
 
2019
 
 
2018
 
Basic earnings per share
 
 
 
 
 
 
 
 
Net income
 
$
10,816
 
 
$
12,804
 
Weighted average common shares outstanding
(1)
 
 
38,822,543
 
 
 
38,306,395
 
Basic earnings per share
 
$
0.28
 
 
$
0.33
 
Diluted earnings per share
 
 
 
 
 
 
 
 
Net income available to common shareholders
 
$
10,816
 
 
$
12,804
 
Weighted average common shares outstanding
(1)
 
 
38,822,543
 
 
 
38,306,395
 
Effect of dilutive securities:
 
 
 
 
 
 
 
 
Restricted stock
 
 
—
 
 
 
35,356
 
Stock options
 
 
83,629
 
 
 
127,059
 
Weighted average common shares outstanding
 
 
38,906,172
 
 
 
38,468,810
 
 
 
$
0.28
 
 
$
0.33
 
 
(1)
 
Adjusted for 3:2 stock split on June 15, 2018