SEGMENT INFORMATION - Schedule of Revenue, Capital Assets and Goodwill, by Country (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Oct. 31, 2016	Jul. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 457.4	$ 405.9
Capital Assets	1,004.2		$ 983.6	$ 888.2
Goodwill	281.5		$ 281.6	284.1
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7.0	7.3
Capital Assets	104.3			91.6
Goodwill	2.6			2.5
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	301.1	271.8
Capital Assets	528.9			466.6
Goodwill	269.4			272.3
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	132.7	111.9
Capital Assets	356.2			314.5
Goodwill	7.3			7.3
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	16.6	$ 14.9
Capital Assets	14.8			15.5
Goodwill	$ 2.2			$ 2.0