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Earnings Per Share
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share:

Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the sum of the weighted-average number of shares and the number of equivalent shares assumed outstanding, if dilutive, under our stock-based compensation plans.

The computations of basic and diluted earnings per share for Income from continuing operations were as follows (in millions, except per share data):
 
 
For the Years Ended December 31,
 
2013
 
2012
 
2011
Net income
$
171.8

 
$
90.0

 
$
88.3

Add: Loss from discontinued operations
8.1

 
45.0

 
23.2

Income from continuing operations
$
179.9

 
$
135.0

 
$
111.5

 
 
 
 
 
 
Weighted-average shares outstanding – basic
49.8

 
50.7

 
52.5

Effect of diluted securities attributable to stock-based payments
0.8

 
0.7

 
0.9

Weighted-average shares outstanding – diluted
50.6

 
51.4

 
53.4

 
 
 
 
 
 
Earnings per share - Basic:
 
 
 
 
 
Income from continuing operations
$
3.61

 
$
2.66

 
$
2.12

Loss from discontinued operations
(0.16
)
 
(0.89
)
 
(0.44
)
Net income
$
3.45

 
$
1.77

 
$
1.68

 
 
 
 
 
 
Earnings per share - Diluted:
 
 
 
 
 
Income from continuing operations
$
3.55

 
$
2.63

 
$
2.09

Loss from discontinued operations
(0.16
)
 
(0.88
)
 
(0.44
)
Net income
$
3.39

 
$
1.75

 
$
1.65


The following stock appreciation rights were outstanding but not included in the diluted earnings per share calculation because the assumed exercise of such rights would have been anti-dilutive (shares in millions):
 
For the Years Ended December 31,
 
2013
 
2012
 
2011
Weighted-average number of shares
0.1

 
0.1

 
1.5

Price ranges per share
$81.11 - $81.14

 
$51.11 - $51.40

 
$34.06 - $46.78