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Earnings Per Share (Text Block)
 9 Months Ended
Sep. 30, 2016
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 September 30,
 
Nine Months Ended September 30,
 
2016
 
2015
 
2016
 
2015
 
(in thousands, except per share data)
Net income (loss) available to common shareholders
$
(9,885
)
 
$
12,640

 
$
20,121

 
$
3,692

 
 
 
 
 
 
 
 
Weighted average common shares outstanding - Basic
38,248

 
38,114

 
38,181

 
38,329

Dilutive effect of stock-based awards
—

 
244

 
334

 
262

Weighted average common shares outstanding - Diluted
38,248

 
38,358

 
38,515

 
38,591

Earnings (loss) per common share - Basic
$
(0.26
)
 
$
0.33

 
$
0.53

 
$
0.10

Earnings (loss) per common share - Diluted
$
(0.26
)
 
$
0.33

 
$
0.52

 
$
0.10



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 0.9 million and 0.8 million stock-based awards were excluded from the calculation of diluted EPS for the three and nine months ended September 30, 2016 because they were anti-dilutive. Approximately 1.1 million and 1.2 million stock-based awards were excluded from the calculation of diluted EPS for the three and nine months ended September 30, 2015 because they were anti-dilutive. These stock-based awards could be dilutive in future periods.