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Earnings Per Share and Capital Structure (Text Block)
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Earnings Per Share and Capital Structure [Text Block]
Earnings Per Share and Capital Structure

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

 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
 
(in thousands, except per share data)
Net income (loss) available to common shareholders
$
(14,198
)
 
$
19,259

 
$
(9,288
)
 
$
19,005

 
 
 
 
 
 
 
 
Weighted average common shares outstanding - Basic
38,434

 
39,356

 
38,438

 
39,296

Dilutive effect of stock-based awards
—

 
188

 
—

 
232

Weighted average common shares outstanding - Diluted
38,434

 
39,544

 
38,438

 
39,528

Earnings (loss) per common share - Basic
$
(0.37
)
 
$
0.49

 
$
(0.24
)
 
$
0.48

Earnings (loss) per common share - Diluted
$
(0.37
)
 
$
0.49

 
$
(0.24
)
 
$
0.48



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, future compensation cost associated with the stock award, and the amount of excess tax benefits, if any. Approximately 1.2 million stock-based awards were excluded from the calculation of diluted EPS for the three and six months ended June 30, 2015, and approximately 1.2 million and 1.3 million stock-based awards were excluded from the calculation of diluted EPS for the three and six months ended June 30, 2014, respectively, because they were anti-dilutive. These stock-based awards could be dilutive in future periods.