Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings per Share

	Three Months Ended
	March 31,
(in millions, except per share data)	2022		2021
Net income from continuing operations attributable to common shareholders	$	94.7	$	103.4
Income from discontinued operations, net of tax (Note 2)	10.3		5.0
Net income attributable to common shareholders	$	105.0	$	108.4
Average basic shares outstanding	57.1		58.2
Effect of dilutive share-based awards	0.8		0.7
Average diluted shares outstanding	57.9		58.9
Earnings per basic share:
Earnings per basic share from continuing operations	$	1.66	$	1.79
Earnings per basic share from discontinued operations	0.18		0.10
Earnings per basic share	$	1.84	$	1.89
Earnings per diluted share:
Earnings per diluted share from continuing operations	$	1.64	$	1.75
Earnings per diluted share from discontinued operations	0.17		0.09
Earnings per diluted share	$	1.81	$	1.84