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Earnings (Loss) Per Common Share
 9 Months Ended
Sep. 30, 2015
Earnings Per Share [Abstract]  
Earnings (Loss) Per Common Share
EARNINGS (LOSS) PER COMMON SHARE
Basic earnings (loss) per common share excludes the dilutive impact of potentially dilutive securities and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income (loss) per common share includes the effect of potential dilution from the exercise of outstanding stock options and restricted shares. Potentially dilutive securities have been excluded in the weighted average number of common shares used for the calculation of earnings (loss) per share in periods of net loss because the effect of such securities would be anti-dilutive. A reconciliation of our basic and diluted earnings (loss) per common share is as follows:
 
Three Months Ended September 30,
Nine Months Ended September 30,
(In millions, except per share data)
2015
2014
2015
2014
Net income (loss) to common shareholders
$
35.1

$
(19.9
)
$
55.1

$
29.6

Basic weighted average shares outstanding
235.9

229.5

232.7

229.2

Diluted weighted average shares outstanding
240.9

229.5

239.1

229.3

Earnings (loss) per Common Share:
 
 


Basic net income (loss) per share
$
0.15

$
(0.09
)
$
0.24

$
0.13

Diluted net income (loss) per share
$
0.15

$
(0.09
)
$
0.23

$
0.13

The number of anti-dilutive shares that have been excluded in the computation of diluted earnings (loss) per share for the three and nine months ended September 30, 2015 were 1.1 million and 0.6 million, respectively. The number of anti-dilutive shares that have been excluded in the computation of diluted earnings (loss) per share for the three and nine months ended September 30, 2014 were 17.2 million and 13.4 million, respectively.