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Earnings per Share
3 Months Ended
Mar. 31, 2015
Earnings per Share [Abstract]  
Earnings per Share
Note 6 – Earnings per Share

Basic earnings per share (“EPS”) is calculated by dividing net income by the weighted average number of common shares outstanding during the reporting period. Diluted EPS includes the components of basic EPS and also gives effect to dilutive common equivalent shares outstanding during the reporting period. We calculate diluted EPS using the treasury stock method for unvested restricted stock, and the if-converted method for convertible debt instruments. For unvested restricted stock, assumed proceeds under the treasury stock method would include unamortized compensation expense and windfall tax benefits or shortfalls. The determination of potentially issuable shares from our convertible debt instruments does not consider satisfaction of the conversion requirements and the shares are included in the determination of diluted EPS as of the beginning of the period, if dilutive. In addition, if dilutive, interest expense, net of tax, related to the convertible debt instrument is added back to earnings in calculating diluted EPS.
 
The following table reconciles the numerators and denominators used to calculate basic and diluted EPS.
 
  
Three months ended March 31,
 
  
2015
  
2014
 
  
(In thousands, except per share data)
 
Basic earnings per share:
    
     
Net income
 
$
133,076
  
$
59,982
 
         
Weighted average common shares outstanding
  
339,107
   
338,213
 
         
Basic income per share
 
$
0.39
  
$
0.18
 
         
Diluted earnings per share:
        
         
Net income
 
$
133,076
  
$
59,982
 
         
Interest expense, net of tax:
        
2% Convertible Senior Notes due 2020
  
3,049
   
3,049
 
5% Convertible Senior Notes due 2017
  
4,692
   
-
 
9% Convertible Junior Subordinated Debentures due 2063
  
8,765
   
-
 
         
Diluted income available to common shareholders
 
$
149,582
  
$
63,031
 
         
Weighted average shares - basic
  
339,107
   
338,213
 
         
Effect of dilutive securities:
        
Unvested restricted stock units
  
2,569
   
3,025
 
2% Convertible Senior Notes due 2020
  
71,942
   
71,942
 
5% Convertible Senior Notes due 2017
  
25,670
   
-
 
9% Convertible Junior Subordinated Debentures due 2063
  
28,853
   
-
 
         
Weighted average shares - diluted
  
468,141
   
413,180
 
         
Diluted income per share
 
$
0.32
  
$
0.15
 
         
Antidilutive securities (in millions)
  
-
   
54.5