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Debt (Schedule Of The Components Of Long-Term Debt) (Details) (USD $)
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Mar. 31, 2014
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Dec. 31, 2013
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| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 514,070,000 | $ 563,679,000 |
| Less: current portion of long-term debt | (134,639,000) | (82,933,000) |
| Long-term debt | 379,431,000 | 480,746,000 |
| Debt instrument amount | 22,000,000 | |
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Other Debt Obligations [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 11,601,000 | 10,000,000 |
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Green Plains Bluffton [Member]
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| Debt Instrument [Line Items] | ||
| Debt instrument amount | 22,000,000 | |
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Green Plains Bluffton [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 25,847,000 | 26,621,000 |
| Debt instrument amount | 70,000,000 | |
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Green Plains Bluffton [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 20,000,000 | 15,000,000 |
| Debt instrument amount | 20,000,000 | |
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Green Plains Bluffton [Member] | Revenue Bond [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 14,865,000 | 15,780,000 |
| Debt instrument amount | 22,000,000 | |
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Green Plains Central City [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 31,668,000 | 33,100,000 |
| Debt instrument amount | 55,000,000 | |
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Green Plains Central City [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 28,639,000 | 17,739,000 |
| Debt instrument amount | 30,500,000 | |
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Green Plains Central City [Member] | Equipment Financing Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 18,000 | 36,000 |
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Green Plains Fairmont and Green Plains Wood River [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 4,199,000 | 3,626,000 |
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Green Plains Fairmont and Green Plains Wood River [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 47,500,000 | 50,000,000 |
| Debt instrument amount | 50,000,000 | |
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Green Plains Fairmont and Green Plains Wood River [Member] | Note Payable [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 26,270,000 | 26,756,000 |
| Debt instrument amount | 27,000,000 | |
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Green Plains Fairmont and Green Plains Wood River [Member] | Equipment Financing Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 4,439,000 | 5,489,000 |
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Green Plains Fairmont and Green Plains Wood River [Member] | Capital Lease Payable [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 9,994,000 | 9,994,000 |
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Green Plains Holdings II [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 34,760,000 | 15,914,000 |
| Debt instrument amount | 46,800,000 | |
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Green Plains Holdings II [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 19,954,000 | 31,960,000 |
| Debt instrument amount | 20,000,000 | |
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Green Plains Obion [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 1,479,000 | 3,879,000 |
| Debt instrument amount | 60,000,000 | |
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Green Plains Obion [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 37,400,000 | 28,400,000 |
| Debt instrument amount | 37,400,000 | |
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Green Plains Obion [Member] | Equipment Financing Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 83,000 | 126,000 |
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Green Plains Obion [Member] | Economic Development Grant [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 1,223,000 | 1,245,000 |
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Green Plains Ord [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 14,488,000 | 15,143,000 |
| Debt instrument amount | 25,000,000 | |
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Green Plains Ord [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 12,151,000 | 2,151,000 |
| Debt instrument amount | 13,000,000 | |
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Green Plains Otter Tail [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 16,926,000 | 17,960,000 |
| Debt instrument amount | 30,300,000 | |
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Green Plains Otter Tail [Member] | Note Payable [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 19,175,000 | 19,151,000 |
| Debt instrument amount | 19,200,000 | |
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Green Plains Otter Tail [Member] | Equipment Financing Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 13,000 | |
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Green Plains Shenandoah [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 15,200,000 | 9,000,000 |
| Debt instrument amount | 17,000,000 | |
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Green Plains Superior [Member] | Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 8,375,000 | 9,750,000 |
| Debt instrument amount | 40,000,000 | |
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Green Plains Superior [Member] | Revolving Term Loans [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 10,000,000 | 8,000,000 |
| Debt instrument amount | 10,000,000 | |
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Green Plains Superior [Member] | Equipment Financing Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 18,000 | |
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Corporate [Member] | Convertible Notes 90M [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 90,000,000 | |
| Debt instrument amount | 90,000,000 | |
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Corporate [Member] | Convertible Notes 120M [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | 97,670,000 | 96,653,000 |
| Debt instrument amount | 120,000,000 | |
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Corporate [Member] | Capital Lease Payable [Member]
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| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 133,000 | $ 188,000 |