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Earnings Per Share (Text Block)
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings (Loss) Per Share

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

 
Year Ended December 31,
 
2016
 
2015
 
2014
 
(in thousands, except per share data)
Net income (loss) available to common shareholders
$
31,770

 
$
12,678

 
$
(23,670
)
 
 
 
 
 
 
Weighted average common shares outstanding - Basic
38,207

 
38,224

 
39,184

Dilutive effect of stock-based awards
436

 
282

 
—

Weighted average common shares outstanding - Diluted
38,643

 
38,506

 
39,184

Earnings (loss) per common share - Basic
$
0.83

 
$
0.33

 
$
(0.60
)
Earnings (loss) per common share - Diluted
$
0.82

 
$
0.33

 
$
(0.60
)


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. As a result of our net losses for 2014, there was no dilutive effect to the weighted average common shares outstanding for that year. Approximately 0.7 million, 1.2 million, and 1.4 million stock-based awards were excluded from the calculation of diluted EPS for the years ended December 31, 2016, 2015, and 2014, respectively, because they were anti-dilutive. These stock-based awards could be dilutive in future periods.