Net Income per Share

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Net Income per Share

8. Net Income per Share

Basic earnings per share is based on the weighted average number of shares of common stock outstanding, and diluted earnings per share is based on the weighted average number of shares of common stock outstanding and all potentially dilutive common stock equivalents outstanding. Common stock equivalents are included in the per share calculations when the effect of their inclusion is dilutive.

The following is a reconciliation of basic to diluted net income per share:

	Quarter Ended				Year to Date Ended
	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021
Net income	$	33.6	$	35.4	$	104.7	$	115.4
Shares used in net income per common share - basic		65.1		64.9		65.0		64.8
Effect of dilutive shares		0.2		0.6		0.3		0.6
Shares used in net income per common share - diluted		65.3		65.5		65.3		65.4
Earnings per share:
Basic	$	0.52	$	0.55	$	1.61	$	1.78
Diluted	$	0.51	$	0.54	$	1.60	$	1.76