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Acquisitions, Divestitures and Other Significant Transactions - Acquisitions (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended |  | 9 Months Ended | 12 Months Ended
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Jul. 31, 2014 Acquisition | Jul. 31, 2013 Acquisition | Oct. 31, 2013 | Jul. 31, 2014 Total 2014 Acquisitions [Member] Acquisition | Oct. 31, 2013 Total 2013 Acquisitions [[Member] Acquisition
Business Acquisition [Line Items] |  |  |  |  |
Number of acquisitions | 2 | 0 |  | 2 |
Purchase Price, net of Cash | $ 53.5 |  |  | $ 53.5 |
Tangible Assets, net |  |  |  | 2.1 |
Intangible Assets |  |  |  | 14.0 |
Goodwill | $ 968.5 |  | $ 1,003.5 | $ 34.4 |

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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