Finance Receivable Transferred To Held For Sale [Line Items]

No definition available.

Name:	gef_FinanceReceivableTransferredToHeldForSaleLineItems
Namespace Prefix:	gef_
Data Type:	xbrli:stringItemType
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Period Type:	duration

Financing receivable maximum amount under receivable purchase agreement.

No definition available.

Name:	gef_FinancingReceivableMaximumAmountUnderReceivablePurchaseAgreement
Namespace Prefix:	gef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Maximum percentage of eligible receivables related with bank funds initial purchase price.

No definition available.

Name:	gef_MaximumPercentageOfEligibleReceivablesRelatedWithBankFundsInitialPurchasePrice
Namespace Prefix:	gef_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Minimum percentage of eligible receivables related with bank funds initial purchase price.

No definition available.

Name:	gef_MinimumPercentageOfEligibleReceivablesRelatedWithBankFundsInitialPurchasePrice
Namespace Prefix:	gef_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percent Of Eligible Receivables as an Initial Purchase Price

No definition available.

Name:	gef_PercentOfEligibleReceivablesasanInitialPurchasePrice
Namespace Prefix:	gef_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gef_NieuwAmsterdamReceivablesPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gef_SingaporeReceivablePurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SALE OF NON-UNITED STATES ACCOUNTS RECEIVABLE - Additional Information (Detail) - 9 months ended Jul. 31, 2018	USD ($)	EUR (€)	SGD ($)
Finance Receivable Transferred To Held For Sale [Line Items]
Minimum percentage of eligible receivables related with bank funds initial purchase price	75.00%
Maximum percentage of eligible receivables related with bank funds initial purchase price	90.00%
European RPA
Finance Receivable Transferred To Held For Sale [Line Items]
Financing receivable maximum amount under receivable purchase agreement	$ 116,600,000	€ 100,000,000
Singapore RPA
Finance Receivable Transferred To Held For Sale [Line Items]
Financing receivable maximum amount under receivable purchase agreement	$ 11,000,000		$ 15,000,000
Percent of eligible receivables	90.00%