Income Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table shows how we reconcile our net income and the number of shares used in computing basic and diluted income per share:

(in millions, except per share amounts)	2019		2018		2017
Basic net income per share:
Consolidated net income	$	152.0	$	183.0	$	136.9
Weighted average common shares outstanding	42.7		42.6		42.7
Basic net income per share	$	3.56	$	4.30	$	3.21
Diluted net income per share:
Consolidated net income	$	152.0	$	183.0	$	136.9
Weighted average common shares outstanding	42.7		42.6		42.7
Net effect of dilutive stock options and restricted stock units	0.5		0.4		0.3
Weighted average common shares outstanding for computing diluted income per share	43.2		43.0		43.0
Diluted net income per share	$	3.52	$	4.25	$	3.18