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Earnings Per Share and Capital Structure Earnings Per Share and Capital Structure (Tables)
 3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share [Table Text Block]
The following table sets forth the computation of basic and diluted earnings per share (EPS):

 
Three Months Ended
March 31,
 
2015
 
2014
 
(in thousands, except per share data)
Net income (loss) available to common shareholders
$
4,910

 
$
(254
)
 
 
 
 
Weighted average common shares outstanding - Basic
38,442

 
39,235

Dilutive effect of stock-based awards
316

 
—

Weighted average common shares outstanding - Diluted
38,758

 
39,235

Earnings (loss) per common share - Basic
$
0.13

 
$
(0.01
)
Earnings (loss) per common share - Diluted
$
0.13

 
$
(0.01
)