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Quarterly Financial Data (Unaudited) - Quarterly Results of Operations (Detail) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2014 | Jul. 31, 2014 | Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2013 | Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2012
Quarterly Results Of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 1,048.1 us-gaap_SalesRevenueNet | $ 1,124.0 us-gaap_SalesRevenueNet | $ 1,065.5 us-gaap_SalesRevenueNet | $ 1,001.5 us-gaap_SalesRevenueNet | $ 1,094.2 us-gaap_SalesRevenueNet | $ 1,094.8 us-gaap_SalesRevenueNet | $ 1,054.7 us-gaap_SalesRevenueNet | $ 976.2 us-gaap_SalesRevenueNet | $ 4,239.1 us-gaap_SalesRevenueNet | $ 4,219.9 us-gaap_SalesRevenueNet | $ 4,129.5 us-gaap_SalesRevenueNet
Gross profit | 202.9 us-gaap_GrossProfit | 217.7 us-gaap_GrossProfit | 204.3 us-gaap_GrossProfit | 186.1 us-gaap_GrossProfit | 226.1 us-gaap_GrossProfit | 217.2 us-gaap_GrossProfit | 202.4 us-gaap_GrossProfit | 186.5 us-gaap_GrossProfit | 811.0 us-gaap_GrossProfit | 832.2 us-gaap_GrossProfit | 779.5 us-gaap_GrossProfit
Net income | (35.5)us-gaap_ProfitLoss | 11.5 us-gaap_ProfitLoss | 37.1 us-gaap_ProfitLoss | 31.8 us-gaap_ProfitLoss | 35.2 us-gaap_ProfitLoss | 48.4 us-gaap_ProfitLoss | 39.7 us-gaap_ProfitLoss | 24.2 us-gaap_ProfitLoss | 44.9 us-gaap_ProfitLoss | 147.5 us-gaap_ProfitLoss | 123.6 us-gaap_ProfitLoss
Net income attributable to Greif, Inc. | $ 8.7 us-gaap_NetIncomeLoss | $ 13.7 us-gaap_NetIncomeLoss | $ 38.4 us-gaap_NetIncomeLoss | $ 30.7 us-gaap_NetIncomeLoss | $ 38.0 us-gaap_NetIncomeLoss | $ 46.2 us-gaap_NetIncomeLoss | $ 37.6 us-gaap_NetIncomeLoss | $ 22.9 us-gaap_NetIncomeLoss | $ 91.5 us-gaap_NetIncomeLoss | $ 144.7 us-gaap_NetIncomeLoss | $ 118.1 us-gaap_NetIncomeLoss
Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share attributable to Greif, Inc.: |  |  |  |  |  |  |  |  |  |  |
EPS Basic | $ 0.15 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.23 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.65 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.53 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.65 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.79 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.64 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.40 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 1.56 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 2.47 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 2.03 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Diluted earnings per share attributed to Greif, Inc.: |  |  |  |  |  |  |  |  |  |  |
EPS Diluted | $ 0.15 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.23 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.65 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.53 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.65 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.79 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.64 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.40 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 1.56 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 2.47 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 2.03 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Basic: |  |  |  |  |  |  |  |  |  |  |
Basic shares | 25,603,452 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,576,452 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,540,341 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,470,354 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,454,762 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,435,379 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,390,486 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,316,395 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,547,650 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,399,256 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,162,686 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Diluted: |  |  |  |  |  |  |  |  |  |  |
Diluted shares | 25,554,934 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,581,952 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,560,846 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,495,642 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,473,695 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,464,664 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,432,388 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,380,502 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,552,986 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,422,322 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,232,856 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Class B Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share attributable to Greif, Inc.: |  |  |  |  |  |  |  |  |  |  |
EPS Basic | $ 0.22 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.35 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.98 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.78 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.97 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 1.18 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.96 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.58 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 2.33 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 3.70 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 3.03 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Diluted earnings per share attributed to Greif, Inc.: |  |  |  |  |  |  |  |  |  |  |
EPS Diluted | $ 0.22 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.35 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.98 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.78 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.97 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 1.18 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.96 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.58 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 2.33 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 3.70 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 3.03 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Basic: |  |  |  |  |  |  |  |  |  |  |
Basic shares | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Diluted: |  |  |  |  |  |  |  |  |  |  |
Diluted shares | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,119,966 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 22,100,000 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Maximum [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 50.85 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 56.53 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 54.98 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 56.47 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 58.27 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 56.38 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 54.28 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 47.93 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |
Maximum [Member] | Class B Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 55.00 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 61.09 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 59.20 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 60.00 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 60.00 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 58.54 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 57.44 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 51.73 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |  |  |
Minimum [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 41.75 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 49.70 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 47.91 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 50.35 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 47.76 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 47.35 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 45.49 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 39.80 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |
Minimum [Member] | Class B Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 47.90 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 53.06 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 53.03 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 51.10 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 52.02 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 51.01 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 48.24 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 43.45 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |  |  |
Close [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 44.06 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 50.18 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 54.19 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 50.63 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 53.49 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 55.32 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 48.17 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 46.98 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |
Close [Member] | Class B Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Market price of common stock | $ 50.20 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 53.62 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 58.81 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 55.51 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 56.85 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 57.17 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 51.79 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 50.34 gef_MarketPriceOfCommonStock / us-gaap_RangeAxis = gef_CloseMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |  |  |

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