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Earnings per Share (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Reconciliation of Shares Outstanding for Basic and Diluted Earnings per Share
The following reconciles shares outstanding for basic and diluted earnings per share for the three and nine months ended September 30, 2017 and 2016 (in thousands):
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2017
 
2016
 
2017
 
2016
Weighted average shares issued net of Treasury shares
32,545

 
25,823

 
32,456

 
22,010

Less: Unallocated ESOP shares
(306
)
 
(340
)
 
(315
)
 
(348
)
 Unallocated incentive award shares and shares held by deferred compensation plan
(55
)
 
(48
)
 
(68
)
 
(38
)
Average basic shares outstanding
32,184

 
25,435

 
32,073

 
21,624

Add: Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options
912

 
434

 
1,023

 
347

Shares held by deferred compensation plan
10

 
20

 
14

 
19

Average diluted shares outstanding
33,106

 
25,889

 
33,110

 
21,990