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Employee Benefit Plans - Narrative (Details) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2017 USD ($) item | Oct. 31, 2016 USD ($) | Oct. 31, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of defined contribution retirement plans | 5 |  |
Expenses incurred on defined contribution retirement plans | $ | $ 1.2 | $ 1.0 | $ 1.0
Non-Qualified Defined Benefit Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of retired executives sponsored under the plan | 2 |  |

X
- Definition Number of defined contribution plans. + References No definition available. + Details
Name: | cvgw_NumberOfDefinedContributionPlans
Namespace Prefix: | cvgw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of plan administration expenses deducted from total plan assets. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanAdministrationExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of employees eligible to participate in the defined contribution plan or plans described. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanNumberOfEmployeesCovered
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=cvgw_NonQualifiedDefinedBenefitPensionPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |