Basis of Presentation and Significant Accounting Policies - Management Reimbursement Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 1,607.9	$ 1,588.3
Business & Industry
Segment Reporting Information [Line Items]
Parking facility management fee revenue	774.5
Aviation
Segment Reporting Information [Line Items]
Parking facility management fee revenue	252.4
Healthcare
Segment Reporting Information [Line Items]
Parking facility management fee revenue	66.7
Management Reimbursement Revenue
Segment Reporting Information [Line Items]
Parking facility management fee revenue	95.2	93.4
Management Reimbursement Revenue | Business & Industry
Segment Reporting Information [Line Items]
Parking facility management fee revenue	66.3	63.0
Management Reimbursement Revenue | Aviation
Segment Reporting Information [Line Items]
Parking facility management fee revenue	24.2	25.5
Management Reimbursement Revenue | Healthcare
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 4.7	$ 4.9