Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2017

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 nine months ended September 30, 2017 and 2016 (in millions, except per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Numerator:
Net income attributable to Hubbell	$	80.8		$	86.7		$	222.7		$	228.6
Less: Earnings allocated to participating securities	(0.3		)	(0.3		)	(0.7		)	(0.7		)
Net income available to common shareholders	$	80.5		$	86.4		$	222.0		$	227.9
Denominator:
Average number of common shares outstanding	54.6			55.3			54.9			55.6
Potential dilutive common shares	0.3			0.2			0.3			0.2
Average number of diluted shares outstanding	54.9			55.5			55.2			55.8
Earnings per share:
Basic	$	1.47		$	1.56		$	4.05		$	4.10
Diluted	$	1.47		$	1.56		$	4.02		$	4.08