Net Income per Common Share (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Income per Common Share and Reconciliation of Weighted Average Shares

Basic and diluted net income per common share and a reconciliation of the weighted average basic common shares outstanding to the weighted average diluted common shares outstanding during the three and six months ended June 30, 2022 and 2021 (unaudited) was as follows:

	Three Months Ended				Six Months Ended
(millions, except share and per share data)	June 30, 2022		June 30, 2021		June 30, 2022		June 30, 2021
Net income attributable to SP Plus Corporation	$	15.4	$	9.0	$	26.1	$	11.3
Basic weighted average common shares outstanding		21,195,819		21,177,142		21,211,299		21,145,494
Dilutive impact of share-based awards		160,645		213,467		136,143		202,020
Diluted weighted average common shares outstanding		21,356,464		21,390,609		21,347,442		21,347,514
Net income per common share
Basic	$	0.73	$	0.42	$	1.23	$	0.53
Diluted	$	0.72	$	0.42	$	1.22	$	0.53