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Note 5 - Earnings Per Share
9 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Earnings Per Share [Text Block]
5.
Earnings per Share
 
Basic earnings per share excludes dilution and is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock and resulted in the issuance of common stock that then shared in earnings. Outstanding stock options and restricted stock units with anti-dilutive effect were
not
included in the computation of diluted earnings per share. The following table sets forth earnings per common share calculations:
 
   
Three months ended September 30,
   
Nine months ended September 30,
 
(Dollars in thousands, except share and per share data)
 
2018
   
2017
   
2018
   
2017
 
Net income
  $
69,757
    $
49,746
    $
207,237
    $
150,102
 
                                 
Weighted-average shares:
                               
Basic weighted-average number of common shares outstanding
   
81,311,899
     
80,665,398
     
81,224,555
     
80,073,249
 
                                 
Dilutive effect of weighted-average outstanding common share equivalents
                               
Warrants
   
234,105
     
399,957
     
268,988
     
409,019
 
Options
   
-
     
19,221
     
-
     
25,706
 
Restricted stock units
   
309,267
     
320,278
     
277,331
     
289,205
 
Diluted weighted-average number of common shares outstanding
   
81,855,271
     
81,404,854
     
81,770,874
     
80,797,179
 
                                 
Average stock options and restricted stock units with anti-dilutive effect
   
1,854
     
-
     
15,625
     
6,561
 
Earnings per common share:
                               
Basic
  $
0.86
    $
0.62
    $
2.55
    $
1.87
 
Diluted
  $
0.85
    $
0.61
    $
2.53
    $
1.86