XML 57 R36.htm IDEA: XBRL DOCUMENT
v3.20.2

General (Details) $ in Millions | Jul. 31, 2020 USD ($)
--- | ---
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Operating lease right-of-use assets | $ 258.9
Lease liability | $ 271.0

X
- Definition Lease, Liability + References No definition available. + Details
Name: | coo_LeaseLiability
Namespace Prefix: | coo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration