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Long-Term Debt (Credit Agreement) - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended
Aug. 31, 2014
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2012
Dec. 19, 2012
Feb. 28, 2010
Debt Instrument [Line Items]            
Principal payment $ 25,000,000us-gaap_RepaymentsOfLongTermDebt $ 1,186,500,000us-gaap_RepaymentsOfLongTermDebt $ 1,266,500,000us-gaap_RepaymentsOfLongTermDebt $ 3,129,800,000us-gaap_RepaymentsOfLongTermDebt    
Principal due over the next twelve   4,300,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal        
Total borrowing capacity available in line of credit facility   770,200,000gef_LineOfCreditFacilityExcessOfBorrowingAvailability        
Change in outstanding letter of credit   15,900,000gef_IncreaseDecreaseInLettersOfCredit        
Debt extinguishment charge   0us-gaap_ExtinguishmentOfDebtAmount 1,300,000us-gaap_ExtinguishmentOfDebtAmount 0us-gaap_ExtinguishmentOfDebtAmount    
Deferred financing cost associated with amended credit agreement   3,400,000us-gaap_DebtorReorganizationItemsWriteOffOfDeferredFinancingCostsAndDebtDiscounts        
Current portion   17,600,000us-gaap_LongTermDebtCurrent 10,000,000us-gaap_LongTermDebtCurrent      
Long-term debt   1,087,400,000us-gaap_LongTermDebtNoncurrent 1,207,200,000us-gaap_LongTermDebtNoncurrent      
Minimum [Member]            
Debt Instrument [Line Items]            
Leverage ratio, adjusted EBITDA   4.00gef_DebtInstrumentCovenantAnnualEarningsBeforeInterestTaxesDepreciationAndAmortization
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		        
Maximum [Member]            
Debt Instrument [Line Items]            
Interest coverage ratio, adjusted EBITDA   3.00gef_DebtInstrumentCovenantInterestCoverageRatio
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
Amended Credit Agreement [Member]            
Debt Instrument [Line Items]            
Amount borrowed under multi currency credit facility         1,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		  
Option to borrow loan under senior secured credit facility         250,000,000gef_LineOfCreditFacilityAdditionalBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		  
Maturity date of credit facility   Dec. 31, 2017        
Write off of unamortized deferred financing costs           1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember
Amended Credit Agreement   169,200,000us-gaap_DebtLongtermAndShorttermCombinedAmount
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		 222,900,000us-gaap_DebtLongtermAndShorttermCombinedAmount
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		      
Current portion   17,300,000us-gaap_LongTermDebtCurrent
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		        
Long-term debt   151,900,000us-gaap_LongTermDebtNoncurrent
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		        
Weighted average interest rate on the Amended Credit Agreement   1.65%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		        
Actual interest rate on the Amended Credit Agreement   1.62%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= gef_AmendedCreditAgreementMember		        
Multicurrency Credit Facility [Member]            
Debt Instrument [Line Items]            
Amount borrowed under multi currency credit facility         800,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= gef_MulticurrencyCreditFacilityMember		  
Term Loan [Member]            
Debt Instrument [Line Items]            
Amount borrowed under multi currency credit facility         200,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= gef_TermLoanMember		  
Amortization of term loan for first eight quarters         2,500,000gef_LongTermDebtAmortizationInEachQuarterEndForFirstEightQuarters
/ us-gaap_LongtermDebtTypeAxis
= gef_TermLoanMember		  
Amortization of term loan for next eleven quarters         $ 5,000,000gef_LongTermDebtAmortizationInEachQuarterEndForNextElevenQuarters
/ us-gaap_LongtermDebtTypeAxis
= gef_TermLoanMember