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Acquisitions Acquisitions (Details) (USD $) | 0 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Aug. 06, 2014 | Apr. 30, 2015 | Oct. 31, 2014 | Oct. 31, 2013 | Aug. 01, 2014
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  | $ 2,177,551,000 us-gaap_Goodwill | $ 2,220,921,000 us-gaap_Goodwill | $ 1,387,611,000 us-gaap_Goodwill |
Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business Acquisition, Effective Date of Acquisition | Aug. 06, 2014 |  |  |  |
Payments to Acquire Businesses, Gross | 1,073,200,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | 1,063,100,000 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred | 58,000,000 us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember |  |  |  |
Goodwill |  |  |  |  | 857,100,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Purchased intangible assets |  |  |  |  | 279,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Cash and Equivalents |  |  |  |  | 10,100,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Property, Plant, and Equipment |  |  |  |  | 83,900,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Inventories |  |  |  |  | 36,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Trade accounts receivable |  |  |  |  | 42,300,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Other Current Assets |  |  |  |  | 6,900,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Debt |  |  |  |  | (85,100,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Accounts Payable |  |  |  |  | (23,600,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Long term deferred tax liabilities |  |  |  |  | (56,500,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Other creditors and current liabilities |  |  |  |  | (19,600,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Net tangible liabilities |  |  |  |  | (5,400,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember
Total purchase consideration | 1,131,100,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember |  |  |  |
Trademarks [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |
Finite-Lived Intangibles |  |  |  |  | 7,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember
Technology-Based Intangible Assets [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |
Finite-Lived Intangibles |  |  |  |  | 138,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TechnologyBasedIntangibleAssetsMember
Customer Relationships [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |  |
Finite-Lived Intangibles |  |  |  |  | 39,300,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
License and distribution right and other [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangibles |  |  |  |  | 51,600,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = coo_LicenseAndDistributionRightsAndOtherMember
Minimum [Member] | License and distribution right and other [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 2 years |  |  |  |
Maximum [Member] | License and distribution right and other [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 5 years |  |  |  |
In Process Research and Development [Member] | Sauflon [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Indefinite-Lived Intangible Assets |  |  |  |  | $ 43,100,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = coo_SauflonMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember

X
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- Definition Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed 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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