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v3.20.1

Acquisitions - Paragard (Details) | 6 Months Ended
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Apr. 30, 2020
Schedule Of Asset Acquisition [Line Items] |
Useful life | 14 years

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- Definition [Line Items] for Schedule Of Asset Acquisition [Table] + References No definition available. + Details
Name: | coo_ScheduleOfAssetAcquisitionLineItems
Namespace Prefix: | coo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration