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Intangible Assets (Schedule of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2015 | Oct. 31, 2014
Goodwill [Roll Forward] |  |
Balance, beginning | $ 2,220,921 us-gaap_Goodwill | $ 1,387,611 us-gaap_Goodwill
Net additions during the period ended |  | 882,689 us-gaap_GoodwillAcquiredDuringPeriod
Translation | (43,370)us-gaap_GoodwillTranslationAdjustments | (49,379)us-gaap_GoodwillTranslationAdjustments
Balance, ending | 2,177,551 us-gaap_Goodwill | 2,220,921 us-gaap_Goodwill
CooperVision [Member] |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 1,861,561 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember | 1,048,478 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember
Net additions during the period ended |  | 857,146 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember
Translation | (37,089)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember | (44,063)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember
Balance, ending | 1,824,472 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember | 1,861,561 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopervisionMember
CooperSurgical [Member] |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 359,360 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember | 339,133 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember
Net additions during the period ended |  | 25,543 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember
Translation | (6,281)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember | (5,316)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember
Balance, ending | $ 353,079 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember | $ 359,360 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = coo_CoopersurgicalMember

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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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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + 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 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments 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 (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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