Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2017

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Schedule of components of comprehensive income, net of tax

Comprehensive income consists of the following components, net of tax:

	Three Months Ended						Nine Months Ended
(millions) (unaudited)	September 30, 2017			September 30, 2016			September 30, 2017		September 30, 2016
Net income	$	12.0		$	7.7		$	36.0	$	15.7
Effective portion of unrealized loss on cash flow hedge	(0.1		)	0.2			—		(0.1		)
Foreign currency translation gain (loss)	0.2			(0.1		)	0.2		(0.1		)
Comprehensive income	12.1			7.8			36.2		15.5
Less: Comprehensive income attributable to noncontrolling interest	0.8			0.7			2.6		2.2
Comprehensive income attributable to SP Plus Corporation	$	11.3		$	7.1		$	33.6	$	13.3

Components of accumulated comprehensive income (loss), net of tax

The components of changes in accumulated comprehensive loss, net of tax, for the nine months ended September 30, 2017 were as follows:

(millions) (unaudited)	Foreign Currency Translation Adjustments			Effective Portion of Unrealized Gain (Loss) on Cash Flow Hedge		Total Accumulated Other Comprehensive Loss
Balance at December 31, 2016	$	(1.4	)	$	—	$	(1.4	)
Change in other comprehensive income	0.2			—		0.2
Balance at September 30, 2017	$	(1.2	)	$	—	$	(1.2	)