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Level 3 Net Income Per Common Share (Tables)
 9 Months Ended
Sep. 30, 2013
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
September 30
 
Nine Months Ended
September 30
 
2013
 
2012
 
2013
 
2012
 
(thousands, except per-share data)
Net income
$
15,860

 
$
23,503

 
$
107,108

 
$
40,218

Weighted average common shares outstanding during the period (for basic calculation)
40,625

 
29,700

 
40,486

 
29,700

Dilutive effect of other potential common shares
15

 
—

 
6

 
—

Weighted average common shares and potential common shares (for diluted calculation)
40,640

 
29,700

 
40,492

 
29,700

 
 
 
 
 
 
 
 
Net income per common share - Basic
$
0.39

 
$
0.79

 
$
2.65

 
$
1.35

Net income per common share - Diluted
$
0.39

 
$
0.79

 
$
2.65

 
$
1.35