Basis of Presentation and Significant Accounting Policies - Management Reimbursement Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 1,492.4	$ 1,612.9
Management Reimbursement Revenue
Segment Reporting Information [Line Items]
Parking facility management fee revenue	57.0	99.6
Management Reimbursement Revenue | Business & Industry
Segment Reporting Information [Line Items]
Parking facility management fee revenue	43.4	73.7
Management Reimbursement Revenue | Aviation
Segment Reporting Information [Line Items]
Parking facility management fee revenue	$ 13.7	$ 25.9