Earnings Per Share and Shareholders' Equity Transactions (Tables)

9 Months Ended

Sep. 30, 2015

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)		2015		2014		2015		2014
Basic shares used in the calculation of earnings per share		44.0		44.1		44.1		44.0
Dilutive effect of securities:
Employee stock options		0.5		0.4		0.5		0.5
Non-vested stock grants		0.4		0.4		0.4		0.4
Diluted shares used in the calculation of earnings per share		44.9		44.9		45.0		44.9
Per share effect of dilutive securities on income from continuing operations	$	(0.03)	$	(0.03)	$	(0.11)	$	(0.08)
Per share effect of dilutive securities on net income	$	(0.04)	$	(0.03)	$	(0.11)	$	(0.09)