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Financial Instruments and Fair Value Measurements - Summary of Quantitative about Significant Unobservable Inputs Used to Determine Fair Value of Impairment of Long-Lived Assets Held and Used (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Apr. 30, 2015
Apr. 30, 2015
Apr. 30, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Fair Value of Impairment $ 4.5us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 4.7us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 0.2us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Broker Quote / Indicative Bids [Member] | Level 3 [Member]      
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Fair Value of Impairment   2.7us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_ValuationTechniqueAxis
= gef_BrokerQuoteOrIndicativeBidsValuationTechniqueMember		  
Unobservable Input   Indicative Bids  
Range of Input Values       
Sales Value [Member] | Level 3 [Member]      
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Fair Value of Impairment   $ 1.5us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_ValuationTechniqueAxis
= gef_SalesValueValuationTechniqueMember		  
Unobservable Input   Sales Value  
Range of Input Values