Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share Tables [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		2011		2010		2009
Numerator:
	Net income attributable to Hubbell	$	267.9	$	217.2	$	180.1
	Less: Earnings allocated to participating securities		1.0		0.9		0.8
	Net income available to common shareholders	$	266.9	$	216.3	$	179.3
Denominator:
	Average number of common shares outstanding		59.7		59.9		56.8
	Potential dilutive shares		0.7		0.4		0.2
	Average number of diluted shares outstanding		60.4		60.3		57.0
Earnings per share:
	Basic	$	4.47	$	3.61	$	3.16
	Diluted	$	4.42	$	3.59	$	3.15
Anti-dilutive securities excluded from the calculation of earnings per diluted share:
	Stock options and performance shares		-		-		1.5
	Stock appreciation rights		-		1.6		2.3