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Earnings Per Share (Text Block)
3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (EPS):

 
Three Months Ended March 31,
 
2017
 
2016
 
(in thousands, except per share data)
Net income available to common shareholders
$
15,845

 
$
10,089

 
 
 
 
Weighted average common shares outstanding - Basic
38,474

 
38,059

Dilutive effect of stock-based awards
741

 
317

Weighted average common shares outstanding - Diluted
39,215

 
38,376

Earnings per common share - Basic
$
0.41

 
$
0.27

Earnings per common share - Diluted
$
0.40

 
$
0.26



Stock-based Awards
For stock-based awards, the dilutive effect is calculated using the treasury stock method. Under this method, the dilutive effect is computed as if the awards were exercised at the beginning of the period (or at time of issuance, if later) and assumes the related proceeds were used to repurchase common stock at the average market price during the period. Related proceeds include the amount the employee must pay upon exercise and the future compensation cost associated with the stock award. Approximately 0.2 million and 1.2 million stock-based awards were excluded from the calculation of diluted EPS for the three months ended March 31, 2017 and 2016 because they were anti-dilutive. These stock-based awards could be dilutive in future periods.