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Acquisitions and Divestitures - Acquisitions (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2015 Company | Jan. 31, 2014 Acquisition | Jan. 31, 2014 Acquisition | Oct. 31, 2014
Business Acquisition [Line Items] |  |  |  |
Number of Acquisitions | 0 us-gaap_NumberOfBusinessesAcquired | 2 us-gaap_NumberOfBusinessesAcquired |  |
Purchase Price, net of Cash | $ 0.4 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | $ 52.3 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |  |
Goodwill | 836.7 us-gaap_Goodwill |  |  | 880.2 us-gaap_Goodwill
Total 2014 Acquisitions [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of Acquisitions |  |  | 2 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember |
Purchase Price, net of Cash |  |  | 52.3 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember |
Tangible Assets, net |  | 2.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember | 2.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember |
Intangible Assets |  | 22.1 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember | 22.1 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember |
Goodwill |  | $ 25.9 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember | $ 25.9 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = gef_TwoThousandFourteenAcquisitionsMember |

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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