Net Income (Loss) per Common Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

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

Basic and diluted net income (loss) per common share and a reconciliation of the weighted average basic common shares outstanding to the weighted average diluted common shares outstanding for the three and six months ended June 30, 2021 and 2020 (unaudited) was as follows:

	Three Months Ended					Six Months Ended
(millions, except share and per share data)	June 30, 2021		June 30, 2020			June 30, 2021		June 30, 2020
Net income (loss) attributable to SP Plus Corporation	$	9.0	$	(39.1	)	$	11.3	$	(85.2	)
Basic weighted average common shares outstanding		21,177,142		20,972,057			21,145,494		21,062,495
Dilutive impact of share-based awards		213,467		—			202,020		—
Diluted weighted average common shares outstanding		21,390,609		20,972,057			21,347,514		21,062,495
Net income (loss) per common share
Basic	$	0.42	$	(1.86	)	$	0.53	$	(4.05	)
Diluted	$	0.42	$	(1.86	)	$	0.53	$	(4.05	)