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No definition available.

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Element represents the gain loss on contribution of subsidiary to joint venture

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Represents general and administrative expenses expressed as a percentage of gross profit.

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No definition available.

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Represents lease contracts gross profit expressed as a percentage of lease contracts revenue.

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No definition available.

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Aggregate revenue from fees, whether long-term or daily, charged for parking facilities less cost of parking services, directly attributable to the revenue generation activity.

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No definition available.

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Aggregate revenue from management contracts less cost of parking services, directly attributable to the revenue generation activity.

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No definition available.

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Represents management contracts gross profit expressed as a percentage of management contracts revenue.

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Represents the number of Canadian provinces included in region one during the period.

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Aggregate revenue during the period from parking services rendered in the normal course of business.

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No definition available.

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

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No definition available.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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No definition available.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the cost of borrowed funds accounted for as interest expense.

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No definition available.

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Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The net result for the period of deducting operating expenses from operating revenues.

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The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items.

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Revenue from fees, whether long-term or daily, charged for parking facilities.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Repayment received or receivable for expenses incurred on behalf of a client or customer, other than those reimbursements received by landlords from tenants.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Domestic and Foreign Operations (Details) $ in Millions	3 Months Ended								12 Months Ended
Domestic and Foreign Operations (Details) $ in Millions	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) segment province	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Business Unit Segment Information
Number of operating segments \| segment									4
Revenues:
Lease contracts	$ 142.1	$ 146.6	$ 146.4	$ 135.8	$ 126.0	$ 129.0	$ 125.0	$ 116.6	$ 570.9	$ 496.6	$ 489.6
Management contracts	82.1	85.8	88.3	94.1	85.5	77.9	84.9	90.0	350.3	338.3	347.3
Total parking services revenue									921.2	834.9	836.9
Reimbursed management contract revenue	181.2	168.3	170.9	174.3	172.7	173.4	164.5	169.2	694.7	679.8	629.9
Total revenue	405.4	400.7	405.6	404.2	384.2	380.3	374.4	375.8	1,615.9	1,514.7	1,466.8
Gross profit
Lease contracts	8.5	10.6	11.9	7.1	10.9	12.5	13.0	4.5	38.1	40.9	33.5
Management contracts	31.2	32.2	34.5	34.1	33.6	31.1	34.9	30.8	132.0	130.4	138.6
Total gross profit	39.7	42.8	46.4	41.2	44.5	43.6	47.9	35.3	170.1	171.3	172.1
Gross Margin
General and administrative expenses	23.1	23.8	24.7	25.7	26.3	24.1	25.0	26.1	$ 97.3	$ 101.5	$ 98.9
General and administrative expense percentage of gross profit									57.00%	59.00%	57.00%
Depreciation and amortization	9.7	8.2	8.2	7.9	7.8	7.6	7.7	7.2	$ 34.0	$ 30.3	$ 31.2
Operating income	6.9	10.8	13.5	7.6	10.4	11.9	15.2	2.0	38.8	39.5	42.0
Other expense (income)
Interest expense	2.7	3.0	3.0	4.0	4.0	4.2	4.8	4.8	12.7	17.8	19.0
Interest income	(0.1)	0.0	0.0	(0.1)	(0.1)	(0.1)	(0.1)	(0.1)	(0.2)	(0.4)	(0.6)
(Gain) loss on sale of business	0.0	(0.5)	0.0	0.0	0.0	0.0	0.0	0.0	(0.5)	0.0	0.0
Gain on contribution of a business to an unconsolidated entity	0.0	0.0	0.0	0.0	(4.1)	0.0	0.0	0.0	0.0	(4.1)	0.0
Equity in losses from investment in unconsolidated entity	0.5	0.4	0.3	0.5	0.3	0.0	0.0	0.0	1.7	0.3	0.0
Total other expenses (income)	3.1	2.9	3.3	4.4	0.1	4.1	4.7	4.7	13.7	13.6	18.4
Earnings before income taxes	3.8	7.9	10.2	3.2	10.3	7.8	10.5	(2.7)	25.1	25.9	23.6
Income tax (benefit) expense	0.4	3.5	(0.4)	1.3	0.2	2.8	4.2	(7.4)	4.8	(0.2)	8.8
Net income	3.4	4.4	10.6	1.9	10.1	5.0	6.3	4.7	20.3	26.1	14.8
Less: Net income attributable to noncontrolling interest	0.8	0.8	0.8	0.5	0.8	0.8	0.9	0.5	2.9	3.0	2.7
Net income attributable to SP Plus Corporation	$ 2.6	$ 3.6	$ 9.8	$ 1.4	$ 9.3	$ 4.2	$ 5.4	$ 4.2	$ 17.4	23.1	12.1
Region One
Business Unit Segment Information
Number of Canadian provinces included in region one \| province									3
Operating segment \| Region One
Revenues:
Lease contracts									$ 208.1	206.0	199.1
Management contracts									84.7	84.0	95.3
Total parking services revenue									292.8	290.0	294.4
Gross profit
Lease contracts									12.5	12.4	10.6
Management contracts									38.0	36.0	42.8
Total gross profit									$ 50.5	$ 48.4	$ 53.4
Gross Margin
Lease contracts (as a percent)									6.00%	6.00%	5.00%
Management contracts (as a percent)									45.00%	43.00%	45.00%
Operating segment \| Region Two
Revenues:
Lease contracts									$ 125.7	$ 119.9	$ 124.0
Management contracts									79.6	83.2	87.0
Total parking services revenue									205.3	203.1	211.0
Gross profit
Lease contracts									21.1	19.8	18.9
Management contracts									32.9	35.8	38.8
Total gross profit									$ 54.0	$ 55.6	$ 57.7
Gross Margin
Lease contracts (as a percent)									17.00%	17.00%	15.00%
Management contracts (as a percent)									41.00%	43.00%	45.00%
Operating segment \| Region Three
Revenues:
Lease contracts									$ 108.8	$ 117.8	$ 120.6
Management contracts									27.8	25.8	23.4
Total parking services revenue									136.6	143.6	144.0
Gross profit
Lease contracts									2.2	4.7	(0.1)
Management contracts									14.2	14.3	12.6
Total gross profit									$ 16.4	$ 19.0	$ 12.5
Gross Margin
Lease contracts (as a percent)									2.00%	4.00%	0.00%
Management contracts (as a percent)									51.00%	55.00%	54.00%
Operating segment \| Region Four
Revenues:
Lease contracts									$ 123.8	$ 48.5	$ 43.7
Management contracts									100.6	103.3	96.6
Total parking services revenue									224.4	151.8	140.3
Gross profit
Lease contracts									5.5	3.6	3.2
Management contracts									24.5	26.4	24.6
Total gross profit									$ 30.0	$ 30.0	$ 27.8
Gross Margin
Lease contracts (as a percent)									4.00%	7.00%	7.00%
Management contracts (as a percent)									24.00%	26.00%	25.00%
Operating segment \| Region Five
Revenues:
Lease contracts									$ 4.4	$ 2.7	$ 2.6
Management contracts									43.8	29.8	33.7
Total parking services revenue									48.2	32.5	36.3
Gross profit
Lease contracts									0.3	0.2	0.0
Management contracts									11.4	11.7	11.3
Total gross profit									$ 11.7	$ 11.9	$ 11.3
Gross Margin
Lease contracts (as a percent)									7.00%	8.00%	(2.00%)
Management contracts (as a percent)									26.00%	39.00%	34.00%
Operating segment \| Other
Revenues:
Lease contracts									$ 0.0	$ 1.7	$ (0.4)
Management contracts									13.9	12.2	11.3
Total parking services revenue									13.9	13.9	10.9
Gross profit
Lease contracts									(3.5)	0.2	0.9
Management contracts									11.0	6.2	8.5
Total gross profit									$ 7.5	$ 6.4	$ 9.4