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Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2016 | Oct. 31, 2015
Goodwill [Roll Forward] |  |
Balance, beginning | $ 2,197,077 | $ 2,220,900
Net additions during the six-month period ended April 30, 2016 | 79,300 | 16,200
Translation | (43,100) | (40,000)
Balance, ending | 2,233,251 | 2,197,077
CooperVision [Member] |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 1,827,600 | 1,861,500
Net additions during the six-month period ended April 30, 2016 | 100 | (1,200)
Translation | (45,700) | (32,700)
Balance, ending | 1,782,000 | 1,827,600
CooperSurgical [Member] |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 369,500 | 359,400
Net additions during the six-month period ended April 30, 2016 | 79,200 | 17,400
Translation | 2,600 | (7,300)
Balance, ending | $ 451,300 | $ 369,500

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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 -Subparagraph (a) -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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