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Earnings (Loss) Per Share
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share
EARNINGS (LOSS) PER SHARE
Basic earnings (loss) per share (“EPS”) is computed by dividing income or loss available to common stockholders by the weighted average number of shares of common stock outstanding for the period. Diluted EPS is computed based on the weighted average number of shares of common stock outstanding for the period plus the effect of dilutive potential common shares outstanding during the period. Dilutive potential common shares include outstanding stock options, performance-based restricted stock unit awards, and restricted stock units and reflect the potential dilution that could occur if these awards were issued and converted into common stock. We use the treasury stock method to determine the potentially dilutive impact of our employee stock options and restricted stock units, and the contingently issuable method for our performance-based restricted stock unit awards. For the three months ended September 30, 2013 and 2012, options to purchase 0.8 million and 2.4 million shares of the Company’s common stock, respectively, had an anti-dilutive effect on EPS, and accordingly, are excluded from the calculation of diluted EPS. For the nine months ended September 30, 2013 and 2012, options to purchase 1.0 million and 2.3 million shares of the Company’s common stock, respectively, had an anti-dilutive effect on EPS, and accordingly, are excluded from the calculation of diluted EPS.
The following table reconciles net income (loss) to basic and diluted EPS:
 
 
Three Months Ended 
 September 30,
 
Nine Months Ended 
 September 30,
(in millions, except per share data)
2013
 
2012
 
2013
 
2012
Income from continuing operations
$
16.8

 
$
4.4

 
$
133.5

 
$
17.2

Loss from discontinued operations and disposal, net of tax
(0.8
)
 
(19.1
)
 
(0.6
)
 
(49.4
)
Net income (loss)
$
16.0

 
$
(14.7
)
 
$
132.9

 
$
(32.2
)
Weighted average shares outstanding – Basic
62.6

 
62.4

 
62.5

 
62.3

Dilutive effect of common stock equivalents
0.6

 
0.6

 
0.5

 
0.3

Weighted average shares outstanding – Diluted
$
63.2

 
$
63.0

 
$
63.0

 
$
62.6

Basic earnings (loss) per share:
 
 
 
 
 
 
 
Earnings from continuing operations
$
0.27

 
$
0.07

 
$
2.14

 
$
0.28

Loss from discontinued operations and disposal, net of tax
(0.01
)
 
(0.31
)
 
(0.01
)
 
(0.79
)
Net earnings (loss) per share
$
0.26

 
$
(0.24
)
 
$
2.13

 
$
(0.51
)
Diluted earnings (loss) per share:
 
 
 
 
 
 
 
Earnings from continuing operations
$
0.26

 
$
0.07

 
$
2.12

 
$
0.28

Loss from discontinued operations and disposal, net of tax
(0.01
)
 
(0.31
)
 
(0.01
)
 
(0.79
)
Net earnings (loss) per share
$
0.25

 
$
(0.24
)
 
$
2.11

 
$
(0.51
)