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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Reconciles Numerators and Denominators of Basic Earnings Per Share with Diluted Earnings Per Share
The following table reconciles the numerators and denominators of basic earnings per share with that of diluted earnings per share for the periods presented:
 
Three Months Ended March 31,
(dollars in thousands, except shares and per share data)
2014
2013
Numerator for Earnings per Share—Basic:


Net income
$
14,033

$
12,330

Less: Income allocated to participating shares
35

45

Net Income Allocated to Shareholders
$
13,998

$
12,285

Numerator for Earnings per Share—Diluted:


Net income
14,033

12,330

Net Income Available to Shareholders
$
14,033

$
12,330

Denominators:


Weighted Average Shares Outstanding—Basic
29,660,794

29,621,453

Add: Dilutive potential shares
37,253

52,953

Denominator for Treasury Stock Method—Diluted
29,698,047

29,674,406

Weighted Average Shares Outstanding—Basic
29,660,794

29,621,453

Add: Average participating shares outstanding
74,237

108,249

Denominator for Two-Class Method—Diluted
29,735,031

29,729,702

Earnings per share—basic
$
0.47

$
0.41

Earnings per share—diluted
$
0.47

$
0.41

Warrants considered anti-dilutive excluded from dilutive potential shares
517,012

517,012

Stock options considered anti-dilutive excluded from dilutive potential shares
428,863

655,573

Restricted stock considered anti-dilutive excluded from dilutive potential shares
36,984

55,296