Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

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 months ended March 31, 2018 and 2017 (in millions, except per share amounts):

	Three Months Ended March 31,
	2018			2017
Numerator:
Net income attributable to Hubbell	$	58.3		$	62.8
Less: Earnings allocated to participating securities	(0.2		)	(0.2		)
Net income available to common shareholders	$	58.1		$	62.6
Denominator:
Average number of common shares outstanding	54.7			55.2
Potential dilutive common shares	0.4			0.4
Average number of diluted shares outstanding	55.1			55.6
Earnings per share:
Basic	$	1.06		$	1.13
Diluted	$	1.05		$	1.13