Earnings Per Share and Shareholders' Equity Transactions (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share and Shareholders’ Equity Transactions [Abstract]

Information Regarding Basic and Diluted Earnings Per Share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in millions, except per share data)		2016		2015		2016		2015
Basic shares used in the calculation of earnings per share		42.7		44.0		42.8		44.1
Dilutive effect of securities:
Employee stock options		0.2		0.5		0.3		0.5
Non-vested stock grants		0.1		0.4		0.2		0.4
Diluted shares used in the calculation of earnings per share		43.0		44.9		43.3		45.0
Per share effect of dilutive securities on income from continuing operations	$	(0.01)	$	(0.03)	$	(0.04)	$	(0.11)
Per share effect of dilutive securities on net income	$	(0.01)	$	(0.04)	$	(0.05)	$	(0.11)