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Earnings Per Share (Tables)
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Table Text Block [Abstract]    
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]  
  Three Months Ended  Nine Months Ended
  September 30 September 30
  2011 2010 2011 2010
Numerator:           
 Net income attributable to Hubbell$ 82.4 $ 71.3 $ 197.9 $ 167.5
 Less: Earnings allocated to participating securities  0.2   0.3   0.7   0.7
 Net income available to common shareholders  82.2   71.0   197.2   166.8
             
Denominator:           
 Average number of common shares outstanding  59.3   59.8   59.9   59.8
 Potential dilutive shares  0.6   0.4   0.7   0.4
 Average number of diluted shares outstanding  59.9   60.2   60.6   60.2
             
Earnings per share:           
 Basic$ 1.38 $ 1.19 $ 3.29 $ 2.79
 Diluted$ 1.37 $ 1.18 $ 3.25 $ 2.77
             
Anti-dilutive securities excluded from the calculation of earnings per diluted share:           
 Stock options and performance shares  -   0.8   -   0.8
 Stock appreciation rights  -   1.6   -   1.6
 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] -

-		 0.8

1.6		Anti-dilutive securities excluded from the calculation of earnings per diluted share:

Stock options and performance shares

-

Stock appreciation rights

-

 0.8

1.6