Earnings Per Share and Shareholders' Equity Transactions (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Information Regarding Basic and Diluted Earnings Per Share

The following table provides weighted average share information used in the calculation of the Company’s basic and diluted earnings per share:

DECEMBER 31	2018			2017			2016
(in millions, except per share data)
Basic shares used in the calculation of earnings per share		42.4			42.5			42.8
Dilutive effect of securities:
Employee stock options		0.3			0.3			0.2
Non-vested stock grants		0.3			0.2			0.2
Diluted shares used in the calculation of earnings per share		43.0			43.0			43.2
Per share effect of dilutive securities on income from    continuing operations	$	(0.07	)	$	(0.05	)	$	(0.04	)
Per share effect of dilutive securities on net income	$	(0.12	)	$	(0.05	)	$	(0.04	)