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Basis of Presentation and Significant Accounting Policies - Presentation (Details)	Oct. 31, 2019
Avocados de Jalisco | Avocados de Jalisco
Significant Accounting Policies [Line Items]
Subsidiary ownership (as a percent)	83.00%

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- Definition

Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cvgw_AvocadosDeJaliscoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=cvgw_AvocadosDeJaliscoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: