Earnings Per Share and Shareholders' Equity Transactions (Tables)

12 Months Ended

Dec. 31, 2020

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	2020			2019			2018
(in millions, except per share data)
Basic shares used in the calculation of earnings per share		37.7			40.0			42.4
Dilutive effect of securities:
Employee stock options		0.2			0.3			0.3
Non-vested stock grants		0.2			0.3			0.3
Diluted shares used in the calculation of earnings per share		38.1			40.6			43.0
Per share effect of dilutive securities on income from    continuing operations	$	(0.11	)	$	(0.16	)	$	(0.07	)
Per share effect of dilutive securities on net income	$	(0.10	)	$	(0.16	)	$	(0.12	)