Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Parking services revenue
Lease contracts	$ 135.7	$ 146.5	$ 274.2	$ 282.3
Management contracts	86.7	88.3	177.9	182.4
Total parking services revenue	222.4	234.8	452.1	464.7
Reimbursed management contract revenue	180.2	170.8	348.1	345.1
Total revenue	402.6	405.6	800.2	809.8
Cost of parking services
Lease contracts	124.0	134.5	254.6	263.2
Management contracts	51.4	53.9	112.1	113.8
Total cost of parking services, gross	175.4	188.4	366.7	377.0
Reimbursed management contract expense	180.2	170.8	348.1	345.1
Total cost of parking services	355.6	359.2	714.8	722.1
Gross profit
Lease contracts	11.7	12.0	19.6	19.1
Management contracts	35.3	34.4	65.8	68.6
Total gross profit	47.0	46.4	85.4	87.7
General and administrative expenses	22.1	24.7	46.7	50.5
Depreciation and amortization	9.8	8.2	19.0	16.1
Operating income	15.1	13.5	19.7	21.1
Other expenses (income)
Interest expense	2.6	3.0	5.4	7.1
Interest income	(0.1)	0.0	(0.3)	(0.1)
Equity in losses from investment in unconsolidated entity	0.3	0.3	0.8	0.8
Total other expenses (income)	2.8	3.3	5.9	7.8
Earnings before income taxes	12.3	10.2	13.8	13.3
Income tax expense (benefit)	4.9	(0.3)	5.8	1.0
Net income	7.4	10.5	8.0	12.3
Less: Net income attributable to noncontrolling interest	0.9	0.7	1.5	1.2
Net income attributable to SP Plus Corporation	$ 6.5	$ 9.8	$ 6.5	$ 11.1
Net income per share
Basic (in dollars per share)	$ 0.29	$ 0.44	$ 0.29	$ 0.50
Diluted (in dollars per share)	$ 0.29	$ 0.43	$ 0.29	$ 0.49
Weighted average shares outstanding
Basic (in shares)	22,344,898	22,145,190	22,336,693	22,136,458
Diluted (in shares)	22,625,471	22,521,832	22,609,443	22,505,403