Long-Term Debt - Summary of Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Jul. 31, 2014	Oct. 31, 2013
Debt Instrument [Line Items]
Carrying amount of long-term debt	$ 1,246.4	$ 1,217.2
Less current portion	(17.5)	(10.0)
Long-term debt	1,228.9	1,207.2
Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	233.8	222.9
Less current portion	(17.5)
Long-term debt	216.3
Senior Notes Due 2017 [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	301.4	301.8
Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	245.0	244.4
Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	266.4	272.9
Amended Receivables Facility [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	170.0	140.0
Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	$ 29.8	$ 35.2