REPOSITIONING EXPENSES - Schedule of Repositioning Expenses and Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Restructuring Reserve [Roll Forward]
Total repositioning liability at beginning of period	$ 5.4	$ 22.9
Repositioning expenses	0.6	1.2
Repositioning expenses paid	(1.5)	(18.7)
Foreign exchange	0.1	(0.5)
Total repositioning liability at end of period	4.6	4.9
Employee-related expenses
Restructuring Reserve [Roll Forward]
Repositioning expenses	0.6	1.2
Operating Segments | DPS | Employee-related expenses
Restructuring Reserve [Roll Forward]
Repositioning expenses	0.2	1.1
Operating Segments | PDS | Employee-related expenses
Restructuring Reserve [Roll Forward]
Repositioning expenses	0.0	0.0
Operating Segments | DSS | Employee-related expenses
Restructuring Reserve [Roll Forward]
Repositioning expenses	0.0	0.1
Other | Other | Employee-related expenses
Restructuring Reserve [Roll Forward]
Repositioning expenses	$ 0.4	$ 0.0