Segment and Geographic Information - Net Impact of these Changes on the Reported Operating Profit (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Certain Overhead Functions | Janitorial
Segment Reporting Information [Line Items]
Costs and Expenses	$ 3.4	$ 3.5
Certain Overhead Functions | Facility Services
Segment Reporting Information [Line Items]
Costs and Expenses	(1.7)	(1.7)
Certain Overhead Functions | Parking
Segment Reporting Information [Line Items]
Costs and Expenses	(1.7)	(1.8)
Discontinued Operations Allocations | Janitorial
Segment Reporting Information [Line Items]
Costs and Expenses	(0.8)	(0.3)
Discontinued Operations Allocations | Corporate segment
Segment Reporting Information [Line Items]
Costs and Expenses	$ (0.5)	$ (0.4)