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Level 3 Net Income (Loss) Per Common Share (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Net Income (Loss) Per Common Share [Table Text Block]
The following table sets forth the computation of basic and diluted net income (loss) per common share:
 
Year Ended December 31
 
2013
 
2012
 
2011
 
(thousands, except per-share data)
Net income (loss)
$
116,936

 
$
41,496

 
$
(46,363
)
Weighted average common shares outstanding during the period (for basic calculation)
40,203

 
29,700

 
29,700

Dilutive effect of other potential common shares
23

 
—

 
—

Weighted average common shares and potential common shares (for diluted calculation)
40,226

 
29,700

 
29,700

 
 
 
 
 
 
Net income (loss) per common share - Basic
$
2.91

 
$
1.40

 
$
(1.56
)
Net income (loss) per common share - Diluted
$
2.91

 
$
1.40

 
$
(1.56
)