XML 92 R49.htm IDEA: XBRL DOCUMENT v2.4.1.9
Restructuring Charges - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2015
Apr. 30, 2014
Oct. 31, 2014
Restructuring and Related Cost [Abstract]          
Restructuring charges $ 7.3us-gaap_RestructuringCharges $ 3.9us-gaap_RestructuringCharges $ 10.5us-gaap_RestructuringCharges $ 6.3us-gaap_RestructuringCharges  
Amounts remaining to be incurred 16.3us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1   16.3us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1   9.2us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1
Employee Separation Costs [Member]          
Restructuring and Related Cost [Abstract]          
Restructuring charges 5.0us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
  7.7us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
   
Other Restructuring Costs [Member]          
Restructuring and Related Cost [Abstract]          
Restructuring charges $ 2.3us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= gef_OtherRestructuringCostsMember
  $ 2.8us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= gef_OtherRestructuringCostsMember