CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Parking services revenue:
Lease contracts	$ 116,635	$ 121,085
Management contracts	89,955	90,095
Total parking services revenue	206,590	211,180
Reimbursed management contract revenue	169,178	159,477
Total revenue	375,768	370,657
Cost of parking services:
Lease contracts	112,084	112,118
Management contracts	59,214	58,737
Total cost of parking services, gross	171,298	170,855
Reimbursed management contract expense	169,178	159,477
Total cost of parking services	340,476	330,332
Gross profit:
Lease contracts	4,551	8,967
Management contracts	30,741	31,358
Total gross profit	35,292	40,325
General and administrative expenses	26,066	27,948
Depreciation and amortization	7,163	7,493
Operating income	2,063	4,884
Other expenses (income):
Interest expense	4,809	4,840
Interest income	(98)	(111)
Total other expenses (income)	4,711	4,729
(Loss) income before income taxes	(2,648)	155
Income tax (benefit)	(7,438)	(154)
Net income	4,790	309
Less: Net income attributable to noncontrolling interest	487	569
Net income (loss) attributable to SP Plus Corporation	$ 4,303	$ (260)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.20	$ (0.01)
Diluted (in dollars per share)	$ 0.19	$ (0.01)
Weighted average shares outstanding:
Basic (in shares)	21,977,836	21,870,771
Diluted (in shares)	22,351,845	21,870,771