Post Retirement Benefit Plans - Schedule of Plan's Change in Benefit Obligation (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Benefits paid	$ (1.4)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Benefit obligation at beginning of year	19.3	20.8
Service cost
Interest cost	0.8	1.1	1.2
Actuarial loss	0.4	0.2
Foreign currency effect	(0.5)	(0.3)
Plan amendments
Benefits paid	(1.5)	(2.4)
Benefit obligation at end of year	$ 18.5	$ 19.3	$ 20.8