Domestic and Foreign Operations (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Summary of revenues (excluding reimbursed management contract revenue) and gross profit by operating segment

The following is a summary of revenues (excluding reimbursed management contract revenue) and gross profit by operating segment for the years ended December 31, 2016, 2015 and 2014:

	Year Ended December 31,
(millions)	2016		Gross Margin		2015		Gross Margin		2014		Gross Margin
Parking services revenue (a)
Region One
Lease contracts	$	414.5			$	442.7			$	443.7
Management contracts	201.2				190.9				193.0
Total Region One	615.7				633.6				636.7
Region Two
Lease contracts	124.7				123.8				48.5
Management contracts	88.1				100.6				103.3
Total Region Two	212.8				224.4				151.8
Region Three
Lease contracts	5.8				4.4				2.7
Management contracts	44.5				44.9				29.8
Total Region Three	50.3				49.3				32.5
Other
Lease contracts	—				—				1.7
Management contracts	13.0				13.9				12.2
Total Other	13.0				13.9				13.9
Reimbursed management contract revenue	723.7				694.7				679.8
Total Revenues	$	1,615.5			$	1,615.9			$	1,514.7
Gross Profit
Region One
Lease contracts	32.6		8	%	35.8		8	%	$	36.8	8	%
Management contracts	86.6		43	%	85.1		44	%	86.1		45	%
Total Region One	119.2				120.9				122.9
Region Two
Lease contracts	5.7		5	%	5.5		4	%	3.7		8	%
Management contracts	25.2		29	%	24.5		24	%	26.3		26	%
Total Region Two	30.9				30.0				30.0
Region Three

	Year Ended December 31,
(millions)	2016			Gross Margin		2015			Gross Margin		2014			Gross Margin
Lease contracts	0.8			14	%	0.3			7	%	0.2			9	%
Management contracts	12.7			29	%	11.4			26	%	11.8			40	%
Total Region Three	13.5					11.7					12.0
Region Other
Lease contracts	0.3			—	%	(3.5		)	—	%	0.2			12	%
Management contracts	12.5			96	%	11.0			79	%	6.2			51	%
Total Other	12.8					7.5					6.4
Total gross profit	176.4					170.1					171.3
General and administrative expenses	90.0					97.3					101.5
General and administrative expense percentage of gross profit	51		%			57		%			59		%
Depreciation and amortization	33.7					34.0					30.3
Operating income	52.7					38.8					39.5
Other expenses (income):
Interest expense	10.5					12.7					17.8
Interest income	(0.5		)			(0.2		)			(0.4		)
Gain on sale of business	—					(0.5		)			—
Gain on contribution of a business to an unconsolidated entity	—					—					(4.1		)
Equity in losses from investment in unconsolidated entity	0.9					1.7					0.3
Total other expenses	10.9					13.7					13.6
Earnings before income taxes	41.8					25.1					25.9
Income tax expense (benefit)	15.8					4.8					(0.2		)
Net income	26.0					20.3					26.1
Less: Net income attributable to noncontrolling interest	2.9					2.9					3.0
Net income attributable to SP Plus Corporation	$	23.1				$	17.4				$	23.1