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Earnings Per Share
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
 
Calculation of basic earnings per share (Basic EPS) and diluted earnings per share (Diluted EPS) is shown below.
 
Year ended December 31,
(in thousands, except share and per share data)
2016
 
2015
 
2014
Basic
 
 
 
 
 
Net income available to common shareholders
$
59,340

 
$
58,421

 
$
52,041

Less: income attributable to unvested stock-based compensation awards
(912
)
 
(834
)
 
(503
)
Net earnings allocated to common shareholders
58,428

 
57,587

 
51,538

 
 
 
 
 
 
Weighted average shares outstanding, including unvested stock-based
15,044,733

 
14,940,274

 
14,824,333

 
 
 
 
 
 
Less: unvested stock-based compensation awards
(232,021
)
 
(212,081
)
 
(147,711
)
Weighted average shares outstanding - Basic
14,812,712

 
14,728,193

 
14,676,622

 
 
 
 
 
 
Diluted
 
 
 
 
 
Net earnings allocated to common shareholders
58,428

 
57,587

 
51,538

 
 
 
 
 
 
Weighted average shares outstanding - Basic
14,812,712

 
14,728,193

 
14,676,622

 
 
 
 
 
 
Plus: incremental shares from assumed conversion of stock-based
123,519

 
134,833

 
113,002

 
 
 
 
 
 
Weighted average shares outstanding - Diluted
14,936,231

 
14,863,026

 
14,789,624

 
 
 
 
 
 
Basic EPS
$
3.94

 
$
3.91

 
$
3.51

Diluted EPS
$
3.91

 
$
3.87

 
$
3.48


 
Stock-based compensation awards representing 72,321, 108,159, and 229,868 common shares for 2016, 2015, 2014, respectively, were not included in the computations of diluted earnings per common share because the effect on those periods would have been antidilutive.