Earnings Per Share and Shareholders' Equity Transactions (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share and Shareholders’ Equity Transactions [Abstract]

Information Regarding Basic and Diluted Earnings Per Share

DECEMBER 31		2014		2013		2012
(in millions, except per share data)
Basic shares used in the calculation of earnings per share		44.0		44.1		44.7
Dilutive effect of securities:
Employee stock options		0.5		0.3		0.2
Non-vested stock grants		0.4		0.5		0.4
Diluted shares used in the calculation of earnings per share		44.9		44.9		45.3
Per share effect of dilutive securities on income from continuing operations	$	(0.12)	$	(0.11)	$	(0.01)
Per share effect of dilutive securities on net income	$	(0.13)	$	(0.11)	$	(0.02)