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Basis of Presentation and Significant Accounting Policies - Management Reimbursement Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 333.2	$ 323.4	$ 305.9
Business & Industry
Segment Reporting Information [Line Items]
Parking facility management fee revenue	234.2	227.8	216.6
Aviation
Segment Reporting Information [Line Items]
Parking facility management fee revenue	80.4	78.2	71.7
Emerging Industries Group
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 18.5	$ 17.5	$ 17.7

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 45
-Section 45
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=68075638&loc=d3e60722-111653

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- Definition

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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