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Level 3 Net Income Per Common Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Net Income Per Common Share [Table Text Block]
The following table sets forth the computation of basic and diluted net income per common share:

 
Three Months Ended
March 31
 
2014
 
2013
 
(thousands, except per-share data)
Net income
$
5,565

 
$
80,836

Weighted average common shares outstanding during the period (for basic calculation)
39,372

 
37,569

Dilutive effect of other potential common shares
80

 
—

Weighted average common shares and potential common shares (for diluted calculation)
39,452

 
37,569

 
 
 
 
Net income per common share - Basic
$
0.14

 
$
2.15

Net income per common share - Diluted
$
0.14

 
$
2.15