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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]  
Schedule of earnings per share
The following table reconciles basic and diluted EPS amounts:

  
Years Ended December 31,
 
       
  
2014
  
2013
  
2012
 
  
(In thousands, except per share data)
 
       
Basic earnings (loss) per share:
      
       
Net income (loss)
 
$
251,949
  
$
(49,848
)
 
$
(927,079
)
Average common shares outstanding
  
338,523
   
311,754
   
201,892
 
Basic income (loss) per share
 
$
0.74
  
$
(0.16
)
 
$
(4.59
)
             
Diluted earnings (loss) per share:
            
             
Net income (loss)
 
$
251,949
  
$
(49,848
)
 
$
(927,079
)
             
Interest expense, net of tax:
            
2% Convertible Senior Notes due 2020
  
12,197
   
-
   
-
 
             
Diluted income available to common shareholders
 
$
264,146
  
$
(49,848
)
 
$
(927,079
)
             
Weighted-average shares - Basic
  
338,523
   
311,754
   
201,892
 
Effect of dilutive securities:
            
Unvested restricted stock
  
3,082
   
-
   
-
 
Convertible debt common stock equivalents
  
71,942
   
-
   
-
 
             
Weighted-average shares - Diluted
  
413,547
   
311,754
   
201,892
 
             
Diluted income (loss) per share
 
$
0.64
  
$
(0.16
)
 
$
(4.59
)