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Common Share Data
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Common Share Data
Common Share Data:

Earnings Per Share - Consolidated basic earnings per share excludes the dilutive effect of common stock equivalents and is computed by dividing income (loss) available to common stockholders by the weighted-average number of common shares actually outstanding for the quarterly and year-to-date periods. Diluted earnings per share are similarly calculated with the inclusion of dilutive common stock equivalents. The following table provides a reconciliation of net income (loss) and the number of shares used in basic and diluted earnings per share calculations.
 
 
 
Quarters Ended
 
 
 
March 31,
 
 
 
 
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
Net income (loss)

 

 
$
194.4

 
$
56.2

Numerator for basic earnings per share -
 
 
 
 
 
 
 
income (loss) available to common stockholders

 

 
194.4

 
56.2

Adjustment for interest expense incurred on
 
 
 
 
 
 
 
assumed conversion of convertible notes

 

 
3.6

 
3.6

Numerator for diluted earnings per share -
 
 
 
 
 
 
 
income (loss) available to common stockholders
 
 
 
 
 
 
 
after assumed conversion of convertible notes

 

 
$
198.0

 
$
59.8

 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
Denominator for basic earnings per share -
 
 
 
 
 
 
 
weighted-average shares (a)

 

 
257,933,928

 
256,279,364

Effect of dilutive securities - stock based
 
 
 
 
 
 
 
   compensation awards

 

 
1,089,795

 
364,986

Effect of dilutive securities - convertible senior notes

 

 
35,490,180

 
35,437,435

Denominator for diluted earnings per share -
 
 
 
 
 
 
 
adjusted weighted-average shares
 
 
 
 
 
 
 
and assumed conversion of convertible notes (a)

 

 
294,513,903

 
292,081,785

Earnings per share: Basic

 

 
$
.75

 
$
.22

Diluted

 

 
$
.67

 
$
.21

 
 
 
 
 
 
 
 
Anti-dilutive common stock equivalents
 
 
 
 
 
 
 
excluded from earning per share computations:
 
 
 
 
 
 
 
Stock based compensation awards

 

 
6,750,559

 
12,066,638

Convertible senior notes

 

 
—

 
—

Total

 

 
6,750,559

 
12,066,638

__________

(a) In calculating earnings per share, pertinent accounting rules require that common shares owned by the Company's Employee Savings and Stock Ownership Plan that are as yet unallocated to participants in the plan be excluded from the calculation. Such shares are issued and outstanding and have the same voting and other rights applicable to all other common shares.