Acquisitions and Other Significant Transactions - Acquisitions (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Oct. 31, 2011 Acquisition	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013 Two Thousand Thirteen Acquisitions [Member] Acquisition	Oct. 31, 2012 Two Thousand Twelve Acquisitions [Member] Acquisition	Oct. 31, 2011 Two Thousand Eleven Acquisitions [Member] Acquisition
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]
Number of Acquisitions	8					8
Purchase Price, net of Cash	$ 344.9					$ 344.9
Tangible Assets, net						101.7
Intangible Assets						77.7
Goodwill	$ 1,002.6	$ 1,003.5	$ 976.1			$ 307.2