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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Summary of the Computation of Earnings Per Share
The following table sets forth the computation of earnings per share for the three and six months ended June 30, 2015 and 2014 (in millions, except per share amounts):
 
Three Months Ended June 30,
Six Months Ended June 30,
 
2015

2014

2015

2014

Numerator:
 

 

 

 

Net income attributable to Hubbell
$
80.1

$
90.2

$
142.5

$
154.4

Less: Earnings allocated to participating securities
0.2

0.3

0.4

0.5

Net income available to common shareholders
$
79.9

$
89.9

$
142.1

$
153.9

Denominator:
 

 

 

 

Average number of common shares outstanding
57.7

59.0

57.9

59.0

Potential dilutive common shares
0.3

0.4

0.3

0.5

Average number of diluted shares outstanding
58.0

59.4

58.2

59.5

Earnings per share:
 

 

 

 

Basic
$
1.39

$
1.53

$
2.46

$
2.61

Diluted
$
1.37

$
1.51

$
2.44

$
2.59