Green Plains (GPRE) 10-Q 2 Aug 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2,018
Entity Registrant Name	Green Plains Inc.
Entity Central Index Key	1,309,402
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		41,429,651
Trading Symbol	gpre

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 235,133	$ 266,651
Restricted cash	15,863	45,709
Accounts receivable, net of allowances of $209 and $217, respectively	137,068	151,122
Income taxes receivable	33,891	6,413
Inventories	625,302	711,878
Prepaid expenses and other	14,915	17,808
Derivative financial instruments	30,647	6,890
Total current assets	1,092,819	1,206,471
Property and equipment, net of accumulated depreciation and amortization of $564,395 and $514,585, respectively	1,139,249	1,176,707
Goodwill	182,879	182,879
Other assets	170,826	218,593
Total assets	2,585,773	2,784,650
Current liabilities
Accounts payable	121,573	205,479
Accrued and other liabilities	53,859	63,886
Derivative financial instruments	22,868	12,884
Income taxes payable		9,909
Short-term notes payable and other borrowings	457,472	526,180
Current maturities of long-term debt	69,752	67,923
Total current liabilities	725,524	886,261
Long-term debt	768,111	767,396
Deferred income taxes	40,591	56,801
Other liabilities	14,434	15,056
Total liabilities	1,548,660	1,725,514
Commitments and contingencies (Note 14)
Stockholders’ equity
Common stock, $0.001 par value; 75,000,000 shares authorized; 46,760,696 and 46,410,405 shares issued, and 41,434,804 and 41,084,463 shares outstanding, respectively	47	46
Additional paid-in capital	687,469	685,019
Retained earnings	293,405	325,411
Accumulated other comprehensive loss	(4,208)	(13,110)
Treasury stock, 5,325,892 and 5,325,942 shares, respectively	(55,183)	(55,184)
Total Green Plains stockholders’ equity	921,530	942,182
Noncontrolling interests	115,583	116,954
Total stockholders’ equity	1,037,113	1,059,136
Total liabilities and stockholders’ equity	$ 2,585,773	$ 2,784,650

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowances	$ 209	$ 217
Property, plant and equipment, accumulated depreciation	$ 564,395	$ 514,585
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	46,760,696	46,410,405
Common stock, shares outstanding	41,434,804	41,084,463
Treasury stock, shares	5,325,892	5,325,942

Consolidated Statements Of Oper

Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 986,837	$ 886,263	$ 2,032,124	$ 1,773,947
Cost of goods sold (excluding depreciation and amortization expenses reflected below)	910,625	830,019	1,898,960	1,641,915
Operations and maintenance expenses	7,893	8,267	16,293	16,798
Selling, general and administrative expenses	29,731	25,575	55,734	49,357
Depreciation and amortization expenses	26,823	26,188	53,297	52,271
Total costs and expenses	975,072	890,049	2,024,284	1,760,341
Operating income (loss)	11,765	(3,786)	7,840	13,606
Other income (expense)
Interest income	709	314	1,346	678
Interest expense	(22,021)	(19,430)	(44,149)	(37,926)
Other, net	2,545	1,357	2,479	1,367
Total other expense	(18,767)	(17,759)	(40,324)	(35,881)
Loss before income taxes	(7,002)	(21,545)	(32,484)	(22,275)
Income tax benefit	10,753	9,749	16,780	12,130
Net income (loss)	3,751	(11,796)	(15,704)	(10,145)
Net income attributable to noncontrolling interests	4,745	4,570	9,407	9,818
Net loss attributable to Green Plains	$ (994)	$ (16,366)	$ (25,111)	$ (19,963)
Earnings per share:
Net loss attributable to Green Plains - basic	$ (0.02)	$ (0.41)	$ (0.63)	$ (0.51)
Net loss attributable to Green Plains - diluted	$ (0.02)	$ (0.41)	$ (0.63)	$ (0.51)
Weighted average shares outstanding:
Basic	40,194	40,220	40,168	39,326
Diluted	40,194	40,220	40,168	39,326
Cash dividend declared per share	$ 0.12	$ 0.12	$ 0.24	$ 0.24
Product [Member]
Revenues	$ 985,217	$ 884,712	$ 2,028,876	$ 1,770,924
Service [Member]
Revenues	$ 1,620	$ 1,551	$ 3,248	$ 3,023

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ 3,751	$ (11,796)	$ (15,704)	$ (10,145)
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on derivatives arising during the period, net of tax benefit (expense) of $1,145, $2,026, ($3,971) and $1,058, respectively	(4,277)	(3,418)	12,873	(1,776)
Reclassification of realized gains (losses) on derivatives, net of tax benefit of $185, $824, $365 and $2,672, respectively	(581)	(1,353)	(1,184)	(4,487)
Total other comprehensive income (loss), net of tax	(4,858)	(4,771)	11,689	(6,263)
Comprehensive loss	(1,107)	(16,567)	(4,015)	(16,408)
Comprehensive income attributable to noncontrolling interests	4,745	4,570	9,407	9,818
Comprehensive loss attributable to Green Plains	$ (5,852)	$ (21,137)	$ (13,422)	$ (26,226)

Consolidated Statements Of Com6

Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements Of Comprehensive Income [Abstract]
Unrealized gains (losses) on derivatives arising during period, tax benefit (expense)	$ 1,145	$ 2,026	$ (3,971)	$ 1,058
Reclassification of realized gains (losses) on derivatives, tax benefit	$ 185	$ 824	$ 365	$ 2,672

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (15,704)	$ (10,145)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	53,297	52,271
Amortization of debt issuance costs and debt discount	7,515	7,925
Loss on exchange of 3.25% convertible notes due 2018		1,291
Gain on disposal of assets	(2,624)	(1,422)
Deferred income taxes	(23,061)	(12,896)
Stock-based compensation	5,435	5,497
Undistributed equity loss of affiliates	239	75
Other		19
Changes in operating assets and liabilities before effects of business combinations:
Accounts receivable	14,054	12,341
Inventories	88,450	(1,079)
Derivative financial instruments	1,513	(17,236)
Prepaid expenses and other assets	2,797	(9)
Accounts payable and accrued liabilities	(96,295)	(74,435)
Current income taxes	10,540	(1,262)
Other	(297)	1,322
Net cash provided by (used in) operating activities	45,859	(37,743)
Cash flows from investing activities:
Purchases of property and equipment, net	(14,640)	(27,985)
Acquisition of a business, net of cash acquired	(1,629)	(61,727)
Investments in unconsolidated subsidiaries	(2,253)	(8,849)
Other investing activities	7,500
Net cash used in investing activities	(11,022)	(98,561)
Cash flows from financing activities:
Proceeds from the issuance of long-term debt	42,300	33,800
Payments of principal on long-term debt	(43,370)	(66,339)
Proceeds from short-term borrowings	2,089,208	2,149,950
Payments on short-term borrowings	(2,158,274)	(2,099,929)
Cash payment for exchange of 3.25% convertible notes due 2018		(8,523)
Payments of cash dividends and distributions	(20,580)	(19,244)
Payments of loan fees	(2,622)	(1,675)
Payments related to tax withholdings for stock-based compensation	(3,013)	(3,801)
Proceeds from exercise of stock options	150	50
Net cash used in financing activities	(96,201)	(15,711)
Net change in cash, cash equivalents and restricted cash	(61,364)	(152,015)
Cash, cash equivalents and restricted cash, beginning of period	312,360	406,791
Cash, cash equivalents and restricted cash, end of period	250,996	254,776
Reconciliation of total cash, cash equivalents and restricted cash:
Total cash, cash equivalents and restricted cash	312,360	406,791
Exchange of 3.25% convertible notes due 2018 for shares of common stock		47,743
Exchange of common stock held in treasury stock for 3.25% convertible notes due 2018	1	27,356
Supplemental investing and financing activities:
Assets acquired in acquisitions and mergers, net of cash	1,629	62,209
Less: liabilities assumed		(482)
Net assets acquired	1,629	61,727
Supplemental disclosures of cash flow
Cash paid (received) for income taxes	(3,163)	1,976
Cash paid for interest	$ 36,923	$ 30,314

Consolidated Statements Of Cas8

Consolidated Statements Of Cash Flows (Parenthetical)	Jun. 30, 2018	Jun. 30, 2017
3.25% Convertible Senior Notes [Member]
Interest rate, stated percentage	3.25%	3.25%

Basis Of Presentation, Descript

Basis Of Presentation, Description Of Business And Summary Of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Basis Of Presentation, Description Of Business And Summary Of Significant Accounting Policies [Abstract]
Basis Of Presentation, Description Of Business And Summary Of Significant Accounting Policies	GREEN PLAINS INC. AND SUBSIDIARIES  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  (unaudited)  1. BASIS OF PRESENTATION, DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  References to the Company  References to “Green Plains” or the “company” in the consolidated financial statements and in these notes to the consolidated financial statements refer to Green Plains Inc., an Iowa corporation, and its subsidiaries.  Consolidated Financial Statements  The consolidated financial statements include the company’s accounts and all significant intercompany balances and transactions are eliminated. Unconsolidated entities are included in the financial statements on an equity basis. As of June 30, 2018, the company owns a 62.5% limited partner interest and a 2.0% general partner interest in Green Plains Partners LP. Public investors own the remaining 35.5% limited partner interest in the partnership. The company determined that the limited partners in the partnership with equity at risk lack the power, through voting rights or similar rights, to direct the activities that most significantly impact partnership’s economic performance; therefore, the partnership is considered a variable interest entity. The company, through its ownership of the general partner interest in the partnership, has the power to direct the activities that most significantly affect economic performance and is obligated to absorb losses and has the right to receive benefits that could be significant to the partnership. Therefore, the company is considered the primary beneficiary and consolidates the partnership in the company’s financial statements. The assets of the partnership cannot be used by the company for general corporate purposes. The partnership’s consolidated total assets as of June 30, 2018 and December 31, 2017, excluding intercompany balances, were $73.2 million and $74.9 million, respectively, and primarily consisted of property and equipment and goodwill. The partnership’s consolidated total liabilities as of June 30, 2018 and December 31, 2017, excluding intercompany balances, were $155.1 million and $153.0 million, respectively, which primarily consisted of long-term debt as discussed in Note 9 – Debt . The liabilities recognized as a result of consolidating the partnership do not represent additional claims on our general assets. The company also owns a 90.0% interest in BioProcess Algae, a joint venture formed in 2008, and consolidates their results in its consolidated financial statements.  The accompanying unaudited consolidated financial statements are prepared in accordance with GAAP for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Because they do not include all of the information and notes required by GAAP, the consolidated financial statements should be read in conjunction with the company’s annual report on Form 10-K for the year ended December 31, 2017 .  The unaudited financial information reflects adjustments which are, in the opinion of management, necessary for a fair presentation of results of operations, financial position and cash flows for the periods presented. The adjustments are normal and recurring in nature, unless otherwise noted. Interim period results are not necessarily indicative of the results to be expected for the entire year.  Reclassifications  Certain prior year amounts were reclassified to conform to the current year presentation. These reclassifications did not affect total revenues, costs and expenses, net income (loss) or stockholders’ equity.  Use of Estimates in the Preparation of Consolidated Financial Statements  The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. The company bases its estimates on historical experience and assumptions it believes are proper and reasonable under the circumstances and regularly evaluates the appropriateness of its estimates and assumptions. Actual results could differ from those estimates. Key accounting policies, including but not limited to those relating to revenue recognition, depreciation of property and equipment, carrying value of intangible assets, impairment of long-lived assets and goodwill, derivative financial instruments, and accounting for income taxes, are impacted significantly by judgments, assumptions and estimates used in the preparation of the consolidated financial statements.  Description of Business  The company operates within four business segments: (1) ethanol production, which includes the production of ethanol and distillers grains, and recovery of corn oil, (2) agribusiness and energy services, which includes grain handling and storage, commodity marketing and merchant trading for company-produced and third-party ethanol, distillers grains, corn oil, natural gas and other commodities, (3) food and ingredients, which includes cattle feeding, vinegar production and food-grade corn oil operations and (4) partnership, which includes fuel storage and transportation services.  Cash and Cash Equivalents  Cash and cash equivalents includes bank deposits as well as short-term, highly liquid investments with original maturities of three months or less.  Restricted Cash  The company has restricted cash, which can only be used for funding letters of credit or for payment towards a revolving credit agreement. Restricted cash also includes cash margins and securities pledged to commodity exchange clearinghouses. To the degree these segregated balances are cash and cash equivalents, they are considered restricted cash on the consolidated statements of cash flows.  Revenue Recognition  The company recognizes revenue at the point in time when the product or service is transferred to the customer.  Sales of ethanol, distillers grains, corn oil, natural gas and other commodities by the company’s marketing business are recognized when obligations under the terms of a contract with a customer are satisfied. Generally, this occurs with the transfer of control of products or services. Revenues related to marketing for third parties are presented on a gross basis as the company controls the product prior to the sale to the end customer, takes title of the product and has inventory risk. Unearned revenue is recorded for goods in transit when the company has received payment but control has not yet been transferred to the customer. Revenues for receiving, storing, transferring and transporting ethanol and other fuels are recognized when the product is delivered to the customer.  The company routinely enters into physical-delivery energy commodity purchase and sale agreements. At times, the company settles these transactions by transferring its obligations to other counterparties rather than delivering the physical commodity. Energy trading transactions are reported net as a component of revenue. All other transactions are reported net as either a component of revenue or cost of goods sold, depending on their position as a gain or loss. Revenues also include realized gains and losses on related derivative financial instruments and reclassifications of realized gains and losses on cash flow hedges from accumulated other comprehensive income or loss.  Sales of products, including agricultural commodities, cattle and vinegar, are recognized when control of the product is transferred to the customer, which depends on the agreed upon shipment or delivery terms. Revenues related to grain merchandising are presented gross and include shipping and handling, which is also a component of cost of goods sold. Revenues from grain storage are recognized when services are rendered.  A substantial portion of the partnership revenues are derived from fixed-fee commercial agreements for storage, terminal or transportation services. The partnership recognizes revenue upon transfer of control of product from its storage tanks and fuel terminals, when railcar volumetric capacity is provided, and as truck transportation services are performed.  Shipping and Handling Costs  We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products. Accordingly, we record customer payments associated with shipping and handling costs as a component of revenue, and classify such costs as a component of cost of goods sold.  Cost of Goods Sold  Cost of goods sold includes direct labor, materials, shipping and plant overhead costs. Direct labor includes all compensation and related benefits of non-management personnel involved in ethanol and vinegar production, and cattle feeding operations. Grain purchasing and receiving costs, excluding labor costs for grain buyers and scale operators, are also included in cost of goods sold. Materials include the cost of corn feedstock, denaturant, process chemicals, cattle and veterinary supplies. Corn feedstock costs include gains and losses on related derivative financial instruments not designated as cash flow hedges, inbound freight charges, inspection costs and transfer costs, as well as reclassifications of gains and losses on cash flow hedges from accumulated other comprehensive income or loss. Plant overhead consists primarily of plant and feedlot utilities, repairs and maintenance, yard expenses and outbound freight charges. Shipping costs incurred by the company, including railcar costs, are also reflected in cost of goods sold.  The company uses exchange-traded futures and options contracts and forward purchase and sales contracts to attempt to minimize the effect of price changes on grain, natural gas and cattle inventories. Exchange-traded futures and options contracts are valued at quoted market prices and settled predominantly in cash. The company is exposed to loss when counterparties default on forward purchase and sale contracts. Grain inventories held for sale and forward purchase and sale contracts are valued at market prices when available or other market quotes adjusted for differences, primarily in transportation, between the exchange-traded market and local market where the terms of the contract is based. Changes in forward purchase contracts and exchange-traded futures and options contracts are recognized as a component of cost of goods sold.  Operations and Maintenance Expenses  In the partnership segment, transportation expenses represent the primary component of operations and maintenance expenses. Transportation expenses include railcar leases, freight and shipping of the company’s ethanol and co-products, as well as costs incurred storing ethanol at destination terminals.  Derivative Financial Instruments  The company uses various derivative financial instruments, including exchange-traded futures and exchange-traded and over-the-counter options contracts, to attempt to minimize risk and the effect of commodity price changes including but not limited to, corn, ethanol, cattle, natural gas and crude oil. The company monitors and manages this exposure as part of its overall risk management policy to reduce the adverse effect market volatility may have on its operating results. The company may hedge these commodities as one way to mitigate risk; however, there may be situations when these hedging activities themselves result in losses.  By using derivatives to hedge exposures to changes in commodity prices, the company is exposed to credit and market risk. The company’s exposure to credit risk includes the counterparty’s failure to fulfill its performance obligations under the terms of the derivative contract. The company minimizes its credit risk by entering into transactions with high quality counterparties, limiting the amount of financial exposure it has with each counterparty and monitoring their financial condition. Market risk is the risk that the value of the financial instrument might be adversely affected by a change in commodity prices or interest rates. The company manages market risk by incorporating parameters to monitor exposure within its risk management strategy, which limits the types of derivative instruments and strategies the company can use and the degree of market risk it can take using derivative instruments.  The company evaluates its physical delivery contracts to determine if they qualify for normal purchase or sale exemptions which are expected to be used or sold over a reasonable period in the normal course of business. Contracts that do not meet the normal purchase or sale criteria are recorded at fair value. Changes in fair value are recorded in operating income unless the contracts qualify for, and the company elects, cash flow hedge accounting treatment.  Certain qualifying derivatives related to ethanol production, agribusiness and energy services, and food and ingredients segments are designated as cash flow hedges. The company evaluates the derivative instrument to ascertain its effectiveness prior to entering into cash flow hedges. Unrealized gains and losses are reflected in accumulated other comprehensive income or loss until the gain or loss from the underlying hedged transaction is realized. When it becomes probable a forecasted transaction will not occur, the cash flow hedge treatment is discontinued, which affects earnings. These derivative financial instruments are recognized in current assets or other current liabilities at fair value.  At times, the company hedges its exposure to changes in inventory values and designates qualifying derivatives as fair value hedges. The carrying amount of the hedged inventory is adjusted in the current period for changes in fair value. Ineffectiveness of the hedges is recognized in the current period to the extent the change in fair value of the inventory is not offset by the change in fair value of the derivative.     Recent Accounting Pronouncements Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 606, Revenue from Contracts with Customers. Please refer to Note 2 – Revenue for further details.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 230, Statement of Cash Flows: Restricted Cash , which requires amounts generally described as restricted cash and restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amended guidance was applied retrospectively. As a result, net cash used in operating activities for the six months ended June 30, 2017 was adjusted to exclude the change in restricted cash and decreased the previously reported balance by $25.2 million. Net cash provided by financing activities for the six months ended June 30, 2017 was adjusted to exclude the change in restricted cash and decreased the previously reported balance by $18.1 million.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 740, Income Taxes: Intra-Entity Transfers of Assets other than Inventory , which requires the recognition of current and deferred income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amended guidance is required on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the year of adoption. The adoption of the guidance did not have an impact to the financial statements.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 805, Business Combinations: Clarifying the Definition of a Business , which clarifies the definition of a business and provides guidance to assist companies and other reporting organizations evaluate whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The amended guidance will be applied prospectively.  Effective January 1, 2018, the company early adopted the amended guidance in ASC Topic 350, Intangibles – Goodwill and Other: Simplifying the Test for Goodwill Impairment , which simplifies the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. The annual goodwill impairment test will be performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge equal to the amount by which the carrying amount exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit, would be recognized. The amended guidance will be applied prospectively, and used when the annual impairment test is performed in the current year. The company does not believe the new guidance will have a material impact on the consolidated financial statements.  Effective January 1, 2018, the company early adopted the amended guidance in ASC Topic 220, Income Statement – Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendment eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act and is intended to improve the usefulness of information reported. As a result, the company recorded a $2.8 million reclassification from accumulated other comprehensive income to retained earnings during the first quarter of 2018. It is the company’s policy to release income tax effects from accumulated other comprehensive income using the portfolio approach.  Effective January 1, 2019, the company will adopt the amended guidance in ASC Topic 842, Leases , which aims to make leasing activities more transparent and comparable, requiring substantially all leases to be recognized by lessees on the balance sheet as a right-of-use asset and corresponding lease liability, including leases currently accounted for as operating leases. The new standard is effective for fiscal years and interim periods within those years, beginning after December 15, 2018. The standard requires a modified retrospective transition approach and allows for early adoption. In July 2018, the FASB issued Accounting Standards Update, Leases (Topic 842): Targeted Improvements , which provides an option to apply the transition provisions of the new standard at adoption date instead of the earliest comparative period presented in the financial statements. The company will elect to use this optional transition method.  The company has established an implementation team which continues to review current accounting policies, internal controls, processes, and disclosures that will change as a result of adopting the new standard. The company has gathered information on existing leases to obtain a complete population of leases upon adoption. The company is also working with a third-party vendor to implement a lease accounting system, which will assist in delivering the required accounting changes and disclosures. The new standard will significantly increase right-of-use assets and lease liabilities on the company’s consolidated balance sheet, primarily due to operating leases that are currently not recognized on the balance sheet. In addition, it will also require expanded disclosures in the company’s consolidated financial statements. The company expects to complete its assessment of the impact of the new guidance on its consolidated financial statements in the second half of 2018 .

Revenue

Revenue	6 Months Ended
	Jun. 30, 2018
Revenue [Abstract]
Revenue	 2 . REVENUE  Adoption of ASC Topic 606  On January 1, 2018, the company adopted the amended guidance in ASC Topic 606, Revenue from Contracts with Customers , and all related amendments (“new revenue standard”) and applied it to all contracts using the modified retrospective transition method. There were no adjustments to the consolidated January 1, 2018 balance sheets for the adoption of the new revenue standard. As such, comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. In addition, there was no impact of adoption on the consolidated statements of operations or balance sheets for the six months ended June 30, 2018 .  Revenue Recognition  Revenue is recognized when obligations under the terms of a contract with a customer are satisfied. Generally this occurs with the transfer of control of products or services. Revenue is measured as the amount of consideration expected to be received in exchange for transferring goods or providing services. Sales, value add, and other taxes the company collects concurrent with revenue-producing activities are excluded from revenue.  Revenue by Source  The following table disaggregates revenue by major source for the three and six months ended June 30, 2018 (in thousands):   Three Months Ended June 30, 2018  Ethanol Production Agribusiness & Energy Services Food & Ingredients Partnership Eliminations Total  Revenues:  Revenues from contracts with customers under ASC Topic 606:  Ethanol $ 634 $ - $ - $ - $ - $ 634  Distillers grains 62,657 - - - - 62,657  Cattle and vinegar - - 222,059 - - 222,059  Service revenues - - - 1,229 - 1,229  Other 1,201 806 - - - 2,007  Intersegment revenues 875 - 38 - (913) -  Total revenues from contracts with customers 65,367 806 222,097 1,229 (913) 288,586  Revenues from contracts accounted for as derivatives under ASC Topic 815 (1):  Ethanol 451,083 106,117 - - - 557,200  Distillers grains 49,940 32,706 - - - 82,646  Corn oil 19,132 3,488 5,350 - - 27,970  Grain 337 22,843 - - - 23,180  Cattle and vinegar - - (1,522) - - (1,522)  Other 4,272 4,114 - - - 8,386  Intersegment revenues 3,344 14,128 - 2,517 (19,989) -  Total revenues from contracts accounted for as derivatives 528,108 183,396 3,828 2,517 (19,989) 697,860  Leasing revenues under ASC Topic 840 (2) - - - 22,094 (21,703) 391  Total Revenues $ 593,475 $ 184,202 $ 225,925 $ 25,840 $ (42,605) $ 986,837     Six Months Ended June 30, 2018  Ethanol Production Agribusiness & Energy Services Food & Ingredients Partnership Eliminations Total  Revenues:  Revenues from contracts with customers under ASC 606:  Ethanol $ 3,100 $ - $ - $ - $ - $ 3,100  Distillers grains 119,902 - - - - 119,902  Cattle and vinegar - - 489,475 - - 489,475  Service revenues - - - 2,447 - 2,447  Other 1,332 1,483 - - - 2,815  Intersegment revenues 1,537 - 80 - (1,617) -  Total revenues from contracts with customers 125,871 1,483 489,555 2,447 (1,617) 617,739  Revenues from contracts accounted for as derivatives under ASC Topic 815 (1):  Ethanol 893,656 228,658 - - - 1,122,314  Distillers grains 90,401 53,918 - - - 144,319  Corn oil 35,602 12,158 7,637 - - 55,397  Grain 470 37,129 - - - 37,599  Cattle and vinegar - - 6,884 - - 6,884  Other 8,556 38,515 - - - 47,071  Intersegment revenues 4,635 25,557 - 4,689 (34,881) -  Total revenues from contracts accounted for as derivatives 1,033,320 395,935 14,521 4,689 (34,881) 1,413,584  Leasing revenues under ASC 840 (2) - - - 44,589 (43,788) 801  Total Revenues $ 1,159,191 $ 397,418 $ 504,076 $ 51,725 $ (80,286) $ 2,032,124      (1) Revenues from contracts accounted for as derivatives represent physically settled derivative sales that are outside the scope of ASC Topic 606, Revenue from Contracts with Customers (ASC Topic 606), where the company recognizes revenue when control of the inventory is transferred within the meaning of ASC Topic 606 as required by ASC Topic 610-20, Gains and Losses from the Derecognition of Nonfinancial Assets . (2) Leasing revenues do not represent revenues recognized from contracts with customers under ASC Topic 606, and continue to be accounted for under ASC Topic 840, Leases .  Payment Terms  The company has standard payment terms, which vary depending upon the nature of the services provided, with the majority falling within 10 to 30 days after transfer of control or completion of services. In instances where the timing of revenue recognition differs from the timing of invoicing, the company has determined that contracts generally do not include a significant financing component.  Contract Liabilities  The company records unearned revenue when consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of service and lease agreements. Unearned revenue from service agreements, which represents a contract liability, is recorded for fees that have been charged to the customer prior to the completion of performance obligations, and is generally recognized in the subsequent quarter. The company expects to recognize all of the unearned revenue associated with service agreements as of June 30, 2018 in the subsequent quarter when the inventory is withdrawn from the partnership’s tank storage.  Practical Expedients  Under the new revenue standard, companies may elect various practical expedients upon adoption. As a result, t he company elected to recognize the cost for shipping and handling activities that occur after the customer obtains control of the promised goods as fulfillment activities and not when performance obligations are met. The company also elected to exclude sales taxes from transaction prices.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2018
Acquisitions [Abstract]
Acquisitions	3 . ACQUISITIONS  Acquisition of Cattle Feeding Operations  On May 16, 2017 , the company acquired two cattle-feeding operations from Car gill Cattle Feeders, LLC for $ 59.3 million, including certain working capital adjustments. The transaction included the feed yards located in Leoti, Kansas and Eckley, Colorado, which added combined feedlot capacity of 155,000 head of cattle to the company’s operations. The transaction was financed using cash on hand. There were no material acquisition costs recorded for the acquisition.  As part of the transaction, the company also entered into a long-term cattle supply agreement with Cargill Meat Solutions Corporation. Under the cattle supply agreement, all cattle placed in the Leoti and Eckley feedlots are sold exclusively to Cargill Meat Solutions under an agreed upon pricing arrangement.  The following is a summary of the assets acquired and liabilities assumed (in thousands):     Amounts of Identifiable Assets Acquired and Liabilities Assumed  Inventory $ 22,450  Prepaid expenses and other 52  Property and equipment, net 36,960   Current liabilities (180)  Total identifiable net assets $ 59,282   The amounts above reflect the final purchase price allocation, which included working capital true-up payment s by the company of $1.6 million made during the first half of 2018.

Fair Value Disclosures

Fair Value Disclosures	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Disclosures	4 . FAIR VALUE DISCLOSURES  The following methods, assumptions and valuation techniques were used in estimating the fair value of the company’s financial instruments:  Level 1 – unadjusted quoted prices in active markets for identical assets or liabilities the company can access at the measurement date.  Level 2 – directly or indirectly observable inputs such as quoted prices for similar assets or liabilities in active markets other than quoted prices included within Level 1, quoted prices for identical or similar assets in markets that are not active, and other inputs that are observable or can be substantially corroborated by observable market data through correlation or other means. Grain inventories held for sale in the agribusiness and energy services segment are valued at nearby futures values, plus or minus nearby basis.  Level 3 – unobservable inputs that are supported by little or no market activity and comprise a significant component of the fair value of the assets or liabilities. The company currently does not have any recurring Level 3 financial instruments.  Derivative contracts include exchange-traded commodity futures and options contracts and forward commodity purchase and sale contracts. Exchange-traded futures and options contracts are valued based on unadjusted quoted prices in active markets and are classified in Level 1. The majority of the company’s exchange-traded futures and options contracts are cash-settled on a daily basis.  There have been no changes in valuation techniques and inputs used in measuring fair value. The company’s assets and liabilities by level are as follows (in thousands):     Fair Value Measurements at June 30, 2018  Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs  (Level 1) (Level 2) Total  Assets:  Cash and cash equivalents $ 235,133 $ - $ 235,133  Restricted cash 15,863 - 15,863  Inventories carried at market - 58,710 58,710  Unrealized gains on derivatives - 18,969 18,969  Other assets 114 - 114  Total assets measured at fair value $ 251,110 $ 77,679 $ 328,789   Liabilities:  Accounts payable (1) $ - $ 9,961 $ 9,961  Unrealized losses on derivatives - 22,868 22,868  Other - 84 84  Total liabilities measured at fair value $ - $ 32,913 $ 32,913      Fair Value Measurements at December 31, 2017  Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs  (Level 1) (Level 2) Total  Assets:  Cash and cash equivalents $ 266,651 $ - $ 266,651  Restricted cash 45,709 - 45,709  Inventories carried at market - 26,834 26,834  Unrealized gains on derivatives - 12,045 12,045  Other assets 115 - 115  Total assets measured at fair value $ 312,475 $ 38,879 $ 351,354   Liabilities:  Accounts payable (1) $ - $ 37,401 $ 37,401  Unrealized losses on derivatives - 12,884 12,884  Other liabilities - 92 92  Total liabilities measured at fair value $ - $ 50,377 $ 50,377   (1) Accounts payable is generally stated at historical amounts with the exception of $10.0 million and $ 37.4 million at June 30, 2018 and December 31, 2017 , respectively, related to certain delivered inventory for which the payable fluctuates based on changes in commodity prices. These payables are hybrid financial instruments for which the company has elected the fair value option.  The company believes the fair value of its debt approximated book value, which was $1.3 billion at June 30, 2018 and $1.4 billion at December 31, 2017 . The company estimated the fair value of its outstanding debt using Level 2 inputs. The company believes the fair value of its accounts receivable approximated book value, which was $ 137.1 million and $ 1 51.1 million at June 30, 2018 and December 31, 2017 , respectively.  Although the company currently does not have any recurring Level 3 financial measurements, the fair values of tangible assets and goodwill acquired and the equity component of convertible debt issued represent Level 3 measurements which were derived using a combination of the income approach, market approach and cost approach for the specific assets or liabilities being valued.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
Segment Information	 5 . SEGMENT INFORMATION  The company reports the financial and operating performance for the following four operating segments: (1) ethanol production, which inc ludes the production of ethanol and distillers grains , and recovery of corn oil, (2) agribusiness and energy services, which includes grain handling and storage, commodity marketing and merchant trading for company-produced and third-party ethanol, distillers grains, corn oil, natural gas and other commodities, (3) food and ingredients, which includes cattle feeding, vinegar production an d food-grade corn oil operations and (4) partnership, which includes fuel storage and transportation services.  Corporate activities include selling , general and administrative expenses, consisting primarily of compensation, professional fees and overhead costs not directly related to a specific operating segment.  During the normal course of business, the operating segments conduct business with each other. For example, the agribusiness and energy services segment procures grain and natural gas and sells products, including ethanol, distillers grains and corn oil for the ethanol production segment. The partnership segment provides fuel storage and transportation services for the ethanol production segment. These intersegment activities are treated like third-party transactions with origination, marketing and storage fees charged at estimated market values. Consequently, these transactions affect segment performance; however, they do not impact the company’s consolidated results since the revenues and corresponding costs are eliminated.  The following tables set forth certain financial data for the company’s operating segments (in thousands):     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Revenues:  Ethanol production:  Revenues from external customers $ 589,256 $ 617,297 $ 1,153,019 $ 1,237,176  Intersegment revenues 4,219 1,549 6,172 3,045  Total segment revenues 593,475 618,846 1,159,191 1,240,221  Agribusiness and energy services:  Revenues from external customers 170,074 150,755 371,861 319,066  Intersegment revenues 14,128 9,781 25,557 19,273  Total segment revenues 184,202 160,536 397,418 338,339  Food and ingredients:  Revenues from external customers 225,887 116,660 503,996 214,682  Intersegment revenues 38 37 80 75  Total segment revenues 225,925 116,697 504,076 214,757  Partnership:  Revenues from external customers 1,620 1,551 3,248 3,023  Intersegment revenues 24,220 23,514 48,477 49,271  Total segment revenues 25,840 25,065 51,725 52,294  Revenues including intersegment activity 1,029,442 921,144 2,112,410 1,845,611  Intersegment eliminations (42,605) (34,881) (80,286) (71,664)  Revenues as reported $ 986,837 $ 886,263 $ 2,032,124 $ 1,773,947  Refer to Note 2 - Revenue , for further disaggregation of revenue by operating segment.    Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Cost of goods sold:  Ethanol production $ 581,613 $ 612,646 $ 1,146,172 $ 1,211,784  Agribusiness and energy services 165,174 152,110 366,886 318,504  Food and ingredients 206,440 100,009 466,205 183,044  Partnership - - - -  Intersegment eliminations (42,602) (34,746) (80,303) (71,417)  $ 910,625 $ 830,019 $ 1,898,960 $ 1,641,915     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Operating income (loss):  Ethanol production $ (17,214) $ (22,459) $ (44,743) $ (29,057)  Agribusiness and energy services 12,166 3,083 19,230 9,452  Food and ingredients 12,981 10,714 25,566 20,340  Partnership 16,129 14,798 31,489 31,417  Intersegment eliminations 144 (80) 212 (155)  Corporate activities (12,441) (9,842) (23,914) (18,391)  $ 11,765 $ (3,786) $ 7,840 $ 13,606      Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  EBITDA:  Ethanol production $ 3,362 $ (873) $ (3,733) $ 12,951  Agribusiness and energy services 12,796 3,747 20,498 10,760  Food and ingredients 19,044 13,955 35,041 26,469  Partnership 17,138 16,066 33,761 33,960  Intersegment eliminations 144 (80) 212 (155)  Corporate activities (10,642) (8,742) (20,817) (16,063)  $ 41,842 $ 24,073 $ 64,962 $ 67,922    Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Depreciation and amortization:  Ethanol production $ 20,559 $ 20,142 $ 40,995 $ 40,484  Agribusiness and energy services 618 659 1,248 1,319  Food and ingredients 3,444 3,240 6,848 6,120  Partnership 1,105 1,247 2,286 2,501  Corporate activities 1,097 900 1,920 1,847  $ 26,823 $ 26,188 $ 53,297 $ 52,271   The following table reconciles net income (loss) to EBITDA (in thousands):     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Net income (loss) $ 3,751 $ (11,796) $ (15,704) $ (10,145)  Interest expense 22,021 19,430 44,149 37,926  Income tax benefit (10,753) (9,749) (16,780) (12,130)  Depreciation and amortization 26,823 26,188 53,297 52,271  EBITDA $ 41,842 $ 24,073 $ 64,962 $ 67,922  The following table sets forth total assets by operating segment (in thousands):    June 30, 2018 December 31, 2017  Total assets (1) :  Ethanol production $ 1,090,323 $ 1,144,459  Agribusiness and energy services 438,139 554,981  Food and ingredients 704,624 725,232  Partnership 73,255 74,935  Corporate assets 290,902 295,217  Intersegment eliminations (11,470) (10,174)  $ 2,585,773 $ 2,784,650  (1) Asset balances by segment exclude intercompany receivable balances.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2018
Inventories [Abstract]
Inventories	6 . INVENTORIES  Inventories are carried at the lower of cost or net realizable value, except grain held for sale and fair-value hedged inventories. Commodities held for sale are reported at market value.  The components of inventories are as follows (in thousands):      June 30, 2018 December 31, 2017  Finished goods $ 143,665 $ 146,269  Commodities held for sale 42,639 65,693  Raw materials 104,119 144,520  Work-in-process 298,738 320,664  Supplies and parts 36,141 34,732  $ 625,302 $ 711,878 

Goodwill And Intangible Assets

Goodwill And Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets [Abstract]
Goodwill And Intangible Assets	7 . GOODWILL AND INTANGIBLE ASSETS  Goodwill  The company did no t have any changes in the carrying amount of goodwill , which was $182.9 million at June 30, 2018 , and December 31, 2017 . Goodwill of $ 30.3 million, $142.0 million and $ 10.6 million are attributable to the ethanol production segment, food and ingredients segment and the partnership segment, respectively.  Intangible Assets  As of June 30, 2018 , the company’s customer relationship intangible asset recognized in connection with the Fleischmann Vinegar’s acquisition is $70.7 million, net of $9.3 million of accumulated amortization, and has a remaining 13.3 -year weighted-average amortization period. As of June 30, 2018 , the company also has an indefinite-lived trade name intangible asset of $10.5 million. The company recognized $1.4 million and $2.7 million of amortization expense associated with the amortizing customer relationship intangible asset during the three and six months ended June 30, 2018 , respectively, and $1.4 million and $2.8 million during the three and six months ended June 30, 2017, respectively, and expects estimated amortization expense for the next five years of $5.3 million per annum. The company’s intangible assets are recorded within other assets on the consolidated balance sheets. 

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2018
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	8 . DERIVATIVE FINANCIAL INSTRUMENTS  At June 30, 2018 , the company’s consolidated balance sheet reflected unrealized losses of $4.2 million, net of tax, in accumulated other comprehensive income . The company expects these losses will be reclassified to operating income over the next 12 months as a result of hedged transactions that are forecasted to occur. The amount realized in operating income will differ as commodity prices change.   Fair Values of Derivative Instruments  The fair values of the company’s derivative financial instruments and the line items on the consolidated balance sheets where they are reported are as follows (in thousands):       Asset Derivatives' Liability Derivatives'  Fair Value Fair Value  June 30, 2018 December 31, 2017 June 30, 2018 December 31, 2017  Derivative financial instruments (1) $ 18,969 $ 12,045 $ - $ 12,884  Accrued and other liabilities - - 22,868 -  Other liabilities - - 84 92  Total $ 18,969 $ 12,045 $ 22,952 $ 12,976  (1) At June 30, 2018 , derivative financial instruments, as reflected on the balance sheet, include net unrealized gains on exchange traded futures and options contracts of $11.7 million, which included $1.1 million of net unrealized gains on derivative financial instruments designated as cash flow hedging instruments. At December 31, 2017 , derivative financial instruments, as reflected on the balance sheet, includes net unrealized gains on exchange traded futures and options contracts of $8.5 million, which included $0.3 million of net unrealized gains on derivative financial instruments designated as cash flow hedging instruments.  Refer to Note 4 - Fair Value Disclosures , which contains fair value information related to derivative financial instruments.  Effect of Derivative Instruments on Consolidated Balance Sheets, Consolida ted Statements of Operations and Consolidated Statements of Comprehensive Income  The gains or losses recognized in income and other comprehensive income related to the company’s derivative financial instruments and the line items on the consolidated financial statements where they are reported are as follows (in thousands) :     Location of Gain or (Loss) Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income  Reclassified from Accumulated Other Three Months Ended June 30, Six Months Ended June 30,  Comprehensive Income into Income 2018 2017 2018 2017  Revenues $ (313) $ 2,825 $ 1,448 $ 6,977  Cost of goods sold 1,079 (648) 101 182  Net gain recognized in earnings before tax $ 766 $ 2,177 $ 1,549 $ 7,159     Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives  Gain or (Loss) Recognized in Three Months Ended June 30, Six Months Ended June 30,  Other Comprehensive Income on Derivatives 2018 2017 2018 2017  Commodity contracts $ (5,422) $ (5,444) $ 16,844 $ (2,834)     Amount of Gain or (Loss)  Recognized in Income on Derivatives  Derivatives Not Designated Location of Gain or (Loss) Recognized in Three Months Ended June 30, Six Months Ended June 30,  as Hedging Instruments Income on Derivatives 2018 2017 2018 2017  Commodity contracts Revenues $ 7,027 $ (5,215) $ 7,963 $ (10,263)  Commodity contracts Costs of goods sold 7,121 3,284 123 15,220  $ 14,148 $ (1,931) $ 8,086 $ 4,957 As of June 30, 2018 , the following amounts were recorded on the consolidated balance sheets related to cumulative basis adjustments for the fair value hedged items (in thousands):    Line Item in the Consolidated Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets  Inventories $ 46,561 $ 3,714  As of December 31, 2017, no amounts were recorded on the consolidated balance sheets related to cumulative basis adjustments for the fair value hedged items.  Effect of Cash Flow and Fair Value Hedge Accounting on the Statement of Financial Performance  The effect of cash flow and fair value hedges and the line items on the consolidated statements of operations where they are reported are as follows (in thousands):    Location and Amount of Gain or (Loss) Recognized in  Income on Cash Flow and Fair Value Hedging Relationships  for the Three Months Ended June 30,  2018 2017  Revenue Cost of Goods Sold Revenue Cost of Goods Sold  Gain (loss) on cash flow hedging relationships:   Commodity contracts:  Amount of gain (loss) reclassified from accumulated other comprehensive income into income $ (313) $ 1,079 $ 2,825 $ (648)   Gain (loss) on fair value hedging relationships:   Commodity contracts:  Hedged item - 1,103 (31) (2,526)  Derivatives designated as hedging instruments - (446) (578) 2,406   Total amounts of income and expense line items presented in the statement of operations in which the effects of cash flow or fair value hedges are recorded $ (313) $ 1,736 $ 2,216 $ (768)    Location and Amount of Gain or (Loss) Recognized in  Income on Cash Flow and Fair Value Hedging Relationships  for the Six Months Ended June 30,  2018 2017  Revenue Cost of Goods Sold Revenue Cost of Goods Sold  Gain on cash flow hedging relationships:   Commodity contracts:  Amount of gain reclassified from accumulated other comprehensive income into income $ 1,448 $ 101 $ 6,977 $ 182   Gain (loss) on fair value hedging relationships:   Commodity contracts:  Hedged item - 10,496 1,390 (4,454)  Derivatives designated as hedging instruments - (8,878) (1,673) 5,445   Total amounts of income and expense line items presented in the statement of operations in which the effects of cash flow or fair value hedges are recorded $ 1,448 $ 1,719 $ 6,694 $ 1,173  There were no gains or losses from discontinuing cash flow or fair value hedge treatment during the three and six months ended June 30, 2018 and 2017 .  The open commodity derivative positions as of June 30, 2018 , are as follows (in thousands):     June 30, 2018  Exchange Traded Non-Exchange Traded  Derivative Instruments Net Long & (Short) (1) Long (2) (Short) (2) Unit of Measure Commodity   Futures (52,345) Bushels Corn, Soybeans and Wheat  Futures 500 (3) Bushels Corn  Futures (4,750) (4) Bushels Corn  Futures (36,313) Gallons Ethanol  Futures (18,270) (3) Gallons Ethanol  Futures 10,050 MmBTU Natural Gas  Futures (9,765) (4) MmBTU Natural Gas  Futures (18,390) Pounds Livestock  Futures (292,280) (3) Pounds Cattle  Futures (11) Barrels Crude Oil  Futures (43) (4) Barrels Crude Oil  Futures 2,814 (3) Gallons Natural Gasoline  Options 5,304 Bushels Corn, Soybeans and Wheat  Options 9,467 Gallons Ethanol  Options (1,898) MmBTU Natural Gas  Options (3,732) Pounds Livestock  Options 67 Barrels Crude Oil  Forwards 50,708 (555) Bushels Corn and Soybeans  Forwards 32,986 (289,259) Gallons Ethanol  Forwards 368 (638) Tons DDG  Forwards 23,463 (122,826) Pounds Corn Oil  Forwards 17,086 (1,931) MmBTU Natural Gas  Forwards 44 (44) Barrels Crude Oil   (1) Exchange traded futures and options are presented on a net long and (short) position basis. Options are presented on a delta-adjusted basis. (2) Non-exchange traded forwards are presented on a gross long and (short) position basis including both fixed-price and basis contracts. (3) Futures used for cash flow hedges. (4) Futures used for fair value hedges.   Energy trading contracts that do not involve physical delivery are presented net in revenues on the consolidated statements of operations. Included in revenues are net gains on energy trading contracts of $4.1 million and $10.8 million for the three and six months ended June 30, 2018 , respectively, and net gains of $6.8 million and $15.1 million for the three and six months ended June 30, 2017 , respectively.

Debt

Debt	6 Months Ended
	Jun. 30, 2018
Debt [Abstract]
Debt	9 . DEBT  The components of long-term debt are as follows (in thousands):    June 30, 2018 December 31, 2017  Corporate:  $500.0 million term loan $ 496,250 $ 498,750  $120.0 million convertible notes due 2018 62,953 61,442  $170.0 million convertible notes due 2022 139,654 136,739  Green Plains Partners:  $235.0 million revolving credit facility 128,900 126,900  Other 27,129 27,744  Total face value of long-term debt 854,886 851,575  Unamortized debt issuance costs (17,023) (16,256)  Less: current portion of long-term debt (69,752) (67,923)  Total long-term debt $ 768,111 $ 767,396  The components of short-term notes payable and other borrowings are as follows:       June 30, 2018 December 31, 2017  Green Plains Cattle:  $425.0 million revolver $ 243,147 $ 270,860  Green Plains Grain:  $125.0 million revolver 71,800 75,000  Green Plains Trade:  $300.0 million revolver 131,170 180,320  Green Plains Commodity Management:  $20.0 million hedge line 11,355 -  $ 457,472 $ 526,180  Corporate Activities  On August 29, 2017, the company entered into a $500.0 million term loan agreement, which matures on August 29, 2023, to refinance approximately $405.0 million of total debt outstanding issued by Green Plains Processing and Fleischmann’s Vinegar, pay associated fees and expenses and for general corporate purposes. The term loan is guaranteed by the company and substantially all of its subsidiaries, except for Green Plains Partners and certain other entities, and secured by substantially all of the assets of the company, including 17 ethanol production facilities, vinegar production facilities and a second priority lien on the assets secured under the revolving credit facilities at Green Plains Trade, Green Plains Cattle and Green Plains Grain.  The credit agreement contains certain customary representations and warranties, affirmative covenants, negative covenants, financial covenants and events of default. The negative covenants include restrictions on the ability to incur additional indebtedness, acquire and sell assets, create liens, make investments, pay distributions and enter into transactions with affiliates. At the end of each fiscal quarter, the covenants of the credit agreement require the company to maintain a maximum term debt to total term capitalization of 55% and a minimum interest coverage ratio of 1.25 to 1.00, as defined in the credit agreement. Beginning in 2018, the credit facility also has a provision requiring the company to make special annual payments of 50% or 75% of its available free cash flow, subject to certain limitations. Voluntary term loan prepayments are subject to prepayment fees of 1.0% if prepaid before the eighteen - month anniversary of the credit agreement. S cheduled principal payments are $1.25 million each quarter until maturity. The term loan bears interest at a floating rate of a base rate plus a margin of 4.50% or LIBOR plus a margin of 5.50% .  In September 2013, the company issued $120.0 million of 3.25% convertible senior notes due 2018, or the 3.25% notes. The 3.25% notes are senior, unsecured obligations of the company, with interest payable on April 1 and October 1 of each year. The company may settle the 3.25% notes in cash, common stock or a combin ation of cash and common stock. Prior to April 1, 2018, the 3.25% notes were not convertible unless certain conditions are satisfied. The conversion rate is subject to adjustment upon the occurrence of certain events, including when the quarterly cash dividend exceeds $0.04 per share. The conversion rate was recently adjusted as of June 30, 2018 to 50.6481 shares of common stock per $1,000 of principal, which is equal to a conversion price of approximately $19.74 per share. For all conversions of notes which occur on or after April 1, 2018, the company has elected to convert for whole shares of common stock with any fractional share being settled with cash in lieu.  During fiscal year 2017, approximately $56.3 million in aggregate principal of the 3.25% notes were exchanged for cash and 2,783,725 shares of the company’s common stock. During the three months ended June 30, 2018, an additional 50 shares of the company’s common stock were exchanged for approximately $1 thousand in aggregate principal amount of the 3.25% notes. Following the closing of these agreements, $63.7 million aggregate principal of the 3.25% notes remain outstanding.  The company may redeem all of the 3.25% notes at any time on or after October 1, 2016, if the company’ s common stock equals or exceeds 140% of the applicable conversion price for a specified time period ending on the trading day immediately prior to the date the company delivers notice of the redemption. The redemption price will equal 100% of the principal plus any accrued and unpaid interest. Holders of the 3.25% notes have the option to require the company to repurchase the 3.25% notes in cash at a price equal to 100% of the principal plus accrued and unpaid interest when there is a fundamental change, such as change in control. If an event of default occurs, it could result in the 3.25% notes being declared due and payable.  In August 2016, the company issued $170.0 million of 4.125% convertible senior notes due in 2022, or the 4.125% notes. The 4.125% notes are senior, unsecured obligations of the company, with interest payable on March 1 and September 1 of each year. The company may settle the 4.125% notes in cash, common stock or a combination of cash and common stock.  Prior to March 1, 2022, the 4.125% notes are not convertible unless certain conditions are satisfied. The conversion rate is subject to adjustment upon the occurrence of certain events, including when the quarterly cash dividend exceeds $0.12 per share and upon redemption of the 4.125% notes. The initial conversion rate is 35.7143 shares of common stock per $1,000 of principal, which is equal to a conversion price of approximately $28.00 per share.  The company may redeem all, but not less than all, of the 4.125% notes at any time on or after September 1, 2020, if the company’s common stock equals or exceeds 140% of the applicable conversion price for a specified time period ending on the trading day immediately prior to the date the company delivers notice of the redemption. The redemption price will equal 100% of the principal plus any accrued and unpaid interest. Holders of the 4.125% notes have the option to require the company to repurchase the 4.125% notes in cash at a price equal to 100% of the principal plus accrued and unpaid interest when there is a fundamental change, such as change in control. If an event of default occurs, it could result in the 4.125% notes being declared due and payable.  Ethanol Production Segment  We have small equipment financing loans, capital leases on equipment or facilities, and other forms of debt financing.  Agribusiness and Energy Services Segment  Green Plains Grain has a $ 125.0 million senior secured asset-based revolving credit facility, to finance working capital up to the maximum commitment based on eligible collateral equal to the sum of percentages of eligible cash, receivables and inventories, less miscellaneous adjustments. The credit facility matures on July 26, 2019. Advances are subject to an interest rate equal to LIBOR plus 3.00% or the lenders’ base rate plus 2.00% . The credit facility also includes an accordion feature that enables the facility to be increased by up to $ 75.0 million with agent approval. The credit facility can also be increased by up to $50.0 million for seasonal borrowings. Total commitments outstanding cannot exceed $250.0 million. The total unused portion of the $125.0 million revolving credit facility is also subject to a commitment fee ranging from 0.375% to 0.50% per annum depending on utilization.  Lenders receive a first priority lien on certain cash, inventory, accounts receivable and other assets owned by Green Plains Grain and a second priority lien on substantially all of the assets of the company, including 17 ethanol production facilities and vinegar production facilities as security on the credit facility. The terms impose affirmative and negative covenants for Green Plains Grain , including maintaining minimum working capital of $22.0 million and tangible net worth of $27.0 million . Capital expenditures are limited to $8.0 million per year under the credit facility, plus equity contributions from the company and unused amounts of up to $8.0 million from the previous year. In addition, the credit facility requires the company to maintain a minimum fixed charge coverage ratio of 1.25 to 1.00 and a maximum annual leverage ratio of 6.00 to 1.00 at the end of each quarter. The fixed charge coverage ratio and long-term capitalization ratio apply only if the company has long-term indebtedness on the date of calculation. As of June 30, 2018 , Green Plains Grain had no long-term indebtedness. The credit facility also contains restrictions on distributions related to capital stock, with exceptions for distributions up to 50% of net profit before tax, subject to certain conditions.  Green Plains Trade has a $300.0 million senior secured asset-based revolving credit facility to finance working capital for marketing and distribution activities based on eligible collateral equal to the sum of percentages of eligible receivables and inventories, less miscell aneous adjustments. The credit facility consists of a $285 million credit facility and a $15 million first-in-last-out (FILO) credit facility , and includes an accordion feature that enables the credit facility to be increased by up to $70.0 million with agent approval. Advances are subject to variable interest rates equal to daily LIBOR plus 2.25% on the credit facility and daily LIBOR plus 3.25% on the FILO credit facility. The total unused portion of the revolving credit facility is also subject to a commitment fee of 0.375% per annum.  The terms impose affirmative and negative covenants for Green Plains Trade , including maintaining a minimum fixed charge coverage ratio of 1.15 to 1.00. Capital expenditures are limited to $1.5 million per year under the credit facility. The credit facility also restricts distributions related to capital stock, with an exception for distributions up to 50% of net income if, on a pro forma basis, (a) availability has been greater than $10.0 million for the last 30 days and (b) the borrower would be in compliance with the fixed charge coverage ratio on the distribution date.  Green Plains Commodity Management has an uncommitted $20.0 million revolving credit facility which matures April 30, 2023 to finance margins related to its hedging programs. Advances are subject to variable interest rates equal to LIBOR plus 1.75% .  Food and Ingredients Segment  Green Plains Cattle has a $425.0 million senior secured asset-based revolving credit facility, which matures on April 30, 2020, to finance working capital for the cattle feeding operations up to the maximum commitment based on eligible collateral equal to the sum of percentages of eligible receivabl es, inventories and other current assets, less miscellaneous adjustments. Advances, as amended, are subject to variable interest rates equal to LIBOR plus 2.00% to 3.00% , or the base rate plus 1.00% to 2.00% , depending upon the preceding three months’ excess borrowing availability. The amended credit facility also includes an accordion feature that enables the credit facility to be increased by up to $75.0 million with agent approval. The unused portion of the credit facility is also subject to a commitment fee of 0.20% to 0.30% per annum, depending on the preceding three months’ excess borrowing availability.  Lenders receive a first priority lien on certain cash, inventory, accounts receivable, property and equipment and other assets owned by Green Plains Cattle and a second priority lien on substantially all of the assets of the company, including 17 ethanol production facilities and vinegar production facilities as security on the credit facility . The amended terms impose affirmative and negative covenants, including maintaining a minimum working capital of 15% of the commitment amount, minimum tangible net worth of 20% of the commitment amount, plus 50% of net profit from the previous year, and a maximum total debt to tangible net worth ratio of 3.50 to 1.00 . Capital expenditures are limited to $10.0 million per year under the credit facility, plus $10.0 million per year if funded by a contribution from parent, plus any unused amounts from the previous year.  Partnership Segment  Green Plains Partners, through a wholly owned subsidiary, has a $235.0 million revolving credit facility, as amended, which matures on July 1, 2020, to fund working capital, acquisitions, distributions, capital expenditures and other general partnership purposes. On February 20, 2018, the partnership accessed an additional $40.0 million to increase the revolving credit facility from $195.0 million to $235.0 million. The credit facility can be increased by an additional $20.0 million without the consent of the lenders. Advances under the credit facility are subject to a floating interest rate based on the preceding fiscal quarter’s consolidated lev erage ratio at a base rate plus 1.25% to 2.00% or LIBOR plus 2.25% to 3.00% . The unused portion of the credit facility is also subject to a commitment fee of 0.35% to 0.50% , depending on the preceding fiscal quarter’s consolidated leverage ratio.  The partnership’s obligations under the credit facility are secured by a first priority lien on (i) the capital stock of the partnership’s present and future subsidiaries, (ii) all of the partnership’s present and future personal property, such as investment property, general intangibles and contract rights, including rights under agreements with Green Plains Trade, and (iii) all proceeds and products of the equity interests of the partnership’s present and future subsidiaries and its personal property. The terms impose affirmative and negative covenants including restricting the partnership’s ability to incur additional debt, acquire and sell assets, create liens, invest capital, pay distributions and materially amend the partnership’s commercial agreements with Green Plains Trade. The credit facility also requires the partnership to maintain a maximum consolidated net leverage ratio of 3.50 to 1.00, and a minimum consolidated interest coverage ratio of 2.75 to 1.00, each of which is calculated on a pro forma basis with respect to acquisitions and divestitures occurring during the applicable period.  Covenant Compliance  The company was in compliance with its debt covenants as of June 30, 2018 .  Restricted Net Assets  At June 30, 2018 , there were approximately $ 166.0 million of net assets at the company’s subsidiaries that could not be transferred to the parent company in the form of dividends, loans or advances due to restrictions contained in the credit facilities of these subsidiaries.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2018
Stock-Based Compensation [Abstract]
Stock-Based Compensation	10 . STOCK-BASED COMPENSATION  The company has an equity incentive plan that reserves 4,110,000 shares of common stock for issuance to its directors and employees. The plan provides for shares, including options to purchase shares of common stock, stock appreciation rights tied to the value of common stock, restricted stock, performance shares, and restricted and deferred stock unit awards, to be granted to eligible employees, non-employee directors and consultants. The company measures stock-based compensation at fair value on the grant date, with no adjustments for estimated forfeitures. The company records noncash compensation expense related to equity awards in its consolidated financial statements over the requisite p eriod on a straight-line basis.  Stock Options  The activity related to the exercisable stock options for the six months ended June 30, 2018 , is as follows:     Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands)  Outstanding at December 31, 2017 143,750 $ 12.44 1.8 $ 635  Granted - - - -  Exercised (15,000) 10.00 - 120  Forfeited - - - -  Expired - - - -  Outstanding at June 30, 2018 128,750 $ 12.72 1.5 $ 718  Exercisable at June 30, 2018 (1) 128,750 $ 12.72 1.5 $ 718   (1) Represents in-the-money options .  Option awards allow employees to exercise options through cash payment for the shares of common stock or simultaneous broker-assisted transactions in which the employee authorizes the exercise and immediate sale of the shares in the open market. The company uses newly issued shares of common stock to satisfy its stock-based payment obligations.  Restricted Stock  The non-vested stock award and deferred stock unit activity for the six months ended June 30, 2018 , is as follows:     Non-Vested Shares and Deferred Stock Units Weighted- Average Grant- Date Fair Value Weighted-Average Remaining Vesting Term (in years)  Non-Vested at December 31, 2017 1,068,947 $ 20.41  Granted 660,509 18.20  Forfeited (7,741) 20.17  Vested (501,621) 20.62  Non-Vested at June 30, 2018 1,220,094 $ 19.12 2.1  Performance Shares  On March 19, 2018, the board of directors granted 153,030 performance shares to be awarded in the form of common stock to certain participants of the plan. Performance shares vest based on the company's average return on net assets (RONA) and the company’s total shareholder return (TSR) , as further described herein. The performance shares vest on March 19, 2021, if the RONA and TSR criteria are achieved and the participant is then employed by the company. Fifty percent of the performance shares vest based upon the company’s ability to achieve a predetermined RONA during the three year performance period. The remaining fifty percent of the performance shares vest based upon the company’s total TSR during the three year performance period relative to that of the company’s performance peer group.  The performance shares were granted at a target of 100% , but each performance share will increase or decrease depending on results for the performance period for the company's RONA, and the company’s TSR relative to that of the performance peer group. If the company’s RONA and TSR achieve the maximum goals, the maximum amount of shares available to be issued pursuant to this award is 229,545 performance shares or 150% of the 153,030 performance shares granted on March 19, 2018. The actual number of performance shares that will ultimately vest is based on the actual percentile ranking of the company’s RONA, and the company’s TSR compared to the peer performance at the end of the performance period.  The company used the Monte Carlo valuation model to estimate the fair value of the performance shares on the date of the grant. The weighted average assumptions used by the company in applying the Monte Carlo valuation model for performance share grants during the six months ended June 30, 2018 are illustrated in the following table:      Six Months Ended June 30, 2018  Risk-free interest rate 2.44 %  Dividend yield 2.64 %  Expected volatility 45.11 %  The Monte Carlo valuation also estimated the number of performance shares that would be awarded which is reflected in the fair value on the grant date. The Monte Carlo valuation assumed 97.39% of the performance shares granted on March 19, 2018 would be awarded on March 19, 2021 based upon the estimated c ompany’s total shareholder return rel ative to peer performance. The c ompany’s closing stock price was $18.15 on the date of the grant.  At June 30, 2018 unrecognized stock compensation expense of $2.5 million, excluding any potential forfeitures, will be recognized over the vesting period of these performance share awards on a straight-line basis.  Green Plains Partners  Green Plains Partners adopted the LTIP, an incentive plan intended to promote the interests of the partnership, its general partner and affiliates by providing incentive compensation based on units to employees, consultants and directors to encourage superior performance. The incentive plan reserves 2,500,000 common units for issuance in the form of options, restricted units, phantom units, distributable equivalent rights, substitute awards, unit appreciation rights, unit awards, profits interest units or other unit-based awards. The partnership measures unit-based compensation related to equity awards in its consolidated financial statements over the requisite service p eriod on a straight-line basis.  The non-vested unit-based awards activity for the six months ended June 30, 2018, is as follows:     Non-Vested Shares and Deferred Stock Units Weighted- Average Grant- Date Fair Value Weighted-Average Remaining Vesting Term (in years)  Non-Vested at December 31, 2017 11,549 $ 19.06  Granted - -  Forfeited - -  Vested (11,549) 19.06  Non-Vested at June 30, 2018 - $ - 0.0  Compensation costs for stock-based and unit-based payment plans during the three and six months ended June 30, 2018 , were approximately $ 3.0 million and $ 5.4 million, respectively , and $3.0 million and $5.5 million during the three and six months ended June 30, 2017 , respectively. At June 30, 2018 , there was $ 17.0 million of unrecognized compensation costs from stock-based and unit-based compensation related to non-vested awards, excluding performance shares noted above. This compensation is expected to be recognized over a weighted-average period of approximately 2.1 years. The pote ntial tax benefit related to stock-based payment is approximately 24.4 % of these expe nses .

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Share	1 1 . EARNINGS PER SHARE  Basic earnings per share, or EPS, is calculated by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period.  The basic and diluted EPS are calculated as follows (in thousands):    Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Basic EPS:  Net loss attributable to Green Plains $ (994) $ (16,366) $ (25,111) $ (19,963)  Weighted average shares outstanding - basic 40,194 40,220 40,168 39,326  EPS - basic $ (0.02) $ (0.41) $ (0.63) $ (0.51)   Diluted EPS:  Net loss attributable to Green Plains $ (994) $ (16,366) $ (25,111) $ (19,963)  Weighted average shares outstanding - diluted 40,194 40,220 40,168 39,326  EPS - diluted $ (0.02) $ (0.41) $ (0.63) $ (0.51)  E xcluded from the computation of diluted EPS were 10.2 million and 10.1 million shares related to the effect of the convertible debt and stock-based compensation awards for the three and six months ended June 30, 2018 , respectively, and 10.7 million shares and 11.3 million shares for the three and six months ended June 30, 2017 , as the inclusion of these shares would have been antidilutive.

Stockholders Equity

Stockholders Equity	6 Months Ended
	Jun. 30, 2018
Stockholders Equity [Abstract]
Stockholders Equity	 1 2 . STOCKHOLDERS’ EQUITY  Components of stockholders’ equity are as follows (in thousands):    Accum. Total  Additional Other Green Plains Non- Total  Common Stock Paid-in Retained Comp. Treasury Stock Stockholders' Controlling Stockholders'  Shares Amount Capital Earnings Income Shares Amount Equity Interests Equity   Balance, December 31, 2017 46,410 $ 46 $ 685,019 $ 325,411 $ (13,110) 5,326 $ (55,184) $ 942,182 $ 116,954 $ 1,059,136  Reclassification of certain tax effects from other comprehensive loss (Note 1) - - - 2,787 (2,787) - - - - -  Balance, January 1, 2018 46,410 46 685,019 328,198 (15,897) 5,326 (55,184) 942,182 116,954 1,059,136  Net income (loss) - - - (25,111) - - - (25,111) 9,407 (15,704)  Cash dividends and distributions declared - - - (9,682) - - - (9,682) (10,898) (20,580)  Other comprehensive income before reclassification - - - - 12,873 - - 12,873 - 12,873  Amounts reclassified from accumulated other comprehensive income - - - - (1,184) - - (1,184) - (1,184)  Other comprehensive income, net of tax - - - - 11,689 - - 11,689 - 11,689  Exchange of 3.25% convertible notes due 2018 - - - - - - 1 1 - 1  Stock-based compensation 336 1 2,300 - - - - 2,301 120 2,421  Stock options exercised 15 - 150 - - - - 150 - 150  Balance, June 30, 2018 46,761 $ 47 $ 687,469 $ 293,405 $ (4,208) 5,326 $ (55,183) $ 921,530 $ 115,583 $ 1,037,113  Amounts reclassified from accumulated other comprehensive income are as follows (in thousands):     Three Months Ended June 30, Six Months Ended June 30, Statements of Operations  2018 2017 2018 2017 Classification  Gains on cash flow hedges:  Commodity derivatives $ (313) $ 2,825 $ 1,448 $ 6,977 Revenues  Commodity derivatives 1,079 (648) 101 182 Cost of goods sold  Total 766 2,177 1,549 7,159 Loss before income taxes  Income tax benefit 185 824 365 2,672 Income tax benefit  Amounts reclassified from accumulated other comprehensive income $ 581 $ 1,353 $ 1,184 $ 4,487 

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Taxes [Abstract]
Income Taxes	13. INCOME TAXES  The company records actual income tax expense or benefit during interim periods rather than on an annual effective tax rate method. Certain items are given discrete period treatment and the tax effect of those items are reported in full in the relevant interim period. Green Plains Partners is a limited partnership, which is treated as a flow-through entity for federal income tax purposes and is not subject to federal income taxes. As a result, the consolidated financial statements do not reflect income taxes on pre-tax income or loss attributable to the noncontrolling interest in the partnership.  The Tax Cuts and Jobs Act was enacted on December 22, 2017 and is effective January 1, 2018. The Act reduced the federal tax rate to 21% . Due to the significance of the legislation, the SEC issued Staff Accounting Bulletin 118 (SAB 118), which provides a measurement period to complete the accounting for certa in elements of the tax reform. The company is still analyzing certain other provisions of the legislation and its impact to future income taxes, including interest expense limitation to 30% of adjusted taxable income, use of AMT credit carryforwards, limitation of net operating loss carryforwards to 80% of taxable income, and deducib ility of officer compensation. Any subsequent adjustments will be recorded as tax expense during the period in which the analysis is complete.  The company recorded income tax benefit of $10.8 million and $16.8 million for the three and six months ended June 30, 2018, respectively, compared with $9.7 million and $12.1 million for the same periods in 2017. The increase in income tax benefit was due primarily to the company’s recognition of tax benefits of $8.3 million during the three months ended June 30, 2018 for federal and state R&D Credits relating to current and prior periods.  The amount of unrecognized tax benefits for uncertain tax positions was $47.9 million as of June 30, 2018 , and $26.0 million as of December 31, 2017 . Recognition of these benefits would have a favorable impact on the company’ s effective tax rate.  The 2018 effective tax rate can be affected by variances in the estimates and amounts of taxable income among the various states, entities and activity types, realization of tax credits, adjustments from resolution of tax matters under review, valuation allowances and the company’s assessment of its liability for uncertain tax positions.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies [Abstract]
Commitments And Contingencies	1 4 . COMMITMENTS AND CONTINGENCIES  Operating Leases  The company leases certain facilities, equipment and parcels of land under agreements that expire at various dates. For accounting purposes, rent expense is based on a straight-line amortization of the total payments required over the lease. The company incurred lease expenses of $ 10.0 million and $20.7 million during the three and six months ended June 30, 2018 , respectively, and $11.9 million and $22.2 million during the three and six months ended June 30, 2017 , respectively.  Aggregate minimum lease payments under these agreements for the remainder of 2018 and in future years are as follows (in thousands):     Year Ending December 31, Amount  2018 $ 17,128  2019 24,298  2020 17,939  2021 9,985  2022 6,240  Thereafter 24,502  Total $ 100,092  Commodities  As of June 30, 2018 , the company had contracted future purchases of grain, corn oil, natural gas, crude oil, ethanol, distillers grains and cattle, valu ed at approximately $ 481.3 million.  Legal  In November 2013, the company acquired two ethanol plants located in Fairmont, Minnesota and Wood River, Nebraska. There is ongoing litigation related to the consideration for this acquisition. On August 19, 2016, the Delaware Superior Court granted Green Plains’ motion for summary judgment in part and held that the seller’s attempt to disclaim liability for certain shortfall amounts through the use of a disclaimer provision was ineffective. Based on the court order, the company determined that previously accrued contingent liabilities of approximately $6.3 million no longer represented probable losses. These accruals were reversed as a reduction of cost of goods sold during the year ended December 31, 2016, because the adjustment relates to a reduction in the cost of inventory purchased in the acquisitions. Per the court’s direction, the company and the seller retained an independent accounting firm to determine if a shortfall exists and the precise shortfall due to Green Plains. The accounting firm has concluded that a shortfall does exist consistent with the company’s calculations, and the matter is now back in the hands of the Court to review and enter its order. The company believes the remaining amount due to Green Plains is approximately $5.5 million; however, the seller has the right to dispute the details of the calculation and appeal the underlying Superior Court order. Accordingly, the total amount Green Plains may receive is yet to be determined. The remaining amount due to the company represents a gain contingency which will not be recorded until all contingencies are resolved.  In addition to the above-described proceeding, the company is currently involved in litigation that has arisen in the ordinary course of business, but does not believe any pending litigation will have a material adverse effect on its financial position, results of operations or cash flows.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	 1 5 . RELATED PARTY TRANSACTIONS  Commercial Contracts  In March 2014, a subsidiary of the company entered into $1.4 million of new equipment financing agreements with Amur Equipment Finance. Gordon Glade, a member of the company’s board of directors, is a shareholder of Amur Equipment Finance. Balances of $ 0.5 million and $0.6 million related to these financing arrangements were included in debt at June 30, 2018 , and December 31, 2017 , respectively. Payments, including principal and interest, totaled $ 69 thousand and $138 thousand during each of the three and six months ended June 30, 2018 and 2017 , respectively . The weighted average interest rate for the financing agreements with Amur Equipment Finance was 6.8 %.  Aircraft Leases  Effective January 1, 2015, the company entered into two agreements with an entity controlled by Wayne Hoovestol for the lease of two aircrafts. Mr. Hoovestol is chairman of the company’s board of directors. The company agreed to pay $ 9,766 per month for the combined use of up to 125 hours per year of the aircrafts. Flight time in excess of 125 hours per year will incur additional hourly charges. Payments related to these leases totaled $30 thousand and $87 thousand during the three and six months ended June 30, 2018 , respectively , and $41 thousand and $102 thousand during the three and six months ended June 30, 2017 , respectively . The company had no outstanding payables related to these agreements as of June 30, 2018 and $2 thousand in outstanding payables related to these agreements as of December 31, 2017.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	1 6 . SUBSEQUENT EVENTS  On July 27, 2018, the company entered into an asset purchase agreement to acquire two feeding operations from Bartlett Cattle Company, L.P. for $16.2 million, plus working capital of approximately $108.9 million. The transaction includes two feed yards located in Sublette, Kansas and Tulia, Texas and will add combined feedlot capacity of 97,000 head of cattle to the company’s operations. The transaction will be financed using cash on hand and proceeds from the Green Plains Cattle senior secured asset-based revolving credit facility. The transaction closed on August 1, 2018 following receipt of regulatory approval.  On July 31, 2018 , the company entered into an amendment of its Green Plains Cattle senior secured asset-based revolving credit facility with a group of lenders led by Bank of the West and ING Capital LLC, increasing the maximum commitment from $425.0 million to $500.0 million. The amendment was completed to fund the additional working capital requirements related to the acquisition of the Sublette, Kansas and Tulia, Texas cattle feeding operations. The amended credit facility also includes an accordion feature that enables the credit facility to be increased by up to $100.0 million with agent approval. All other terms and conditions of the credit facility remain the same.  On August 1, 2018, DKGP Energy Terminals LLC, the 50/50 joint venture between Delek Logistics Partners LP and Green Plains Partners LP, notified AMID Merger LP of its termination of the membership interest purchase agreement (MIPA), dated as of February 16, 2018, to acquire all of the membership interests of AMID Refined Products LLC. The MIPA was terminated due to regulatory obstacles. The termination was made pursuant to Section 8.1 of the MIPA, without any liability, obligation or penalty incurred by either party. 

Basis Of Presentation And Descr

Basis Of Presentation And Description Of Business And Summary Of Significant Accounting Policies (Policy)	6 Months Ended
	Jun. 30, 2018
Basis Of Presentation, Description Of Business And Summary Of Significant Accounting Policies [Abstract]
Consolidated Financial Statements	Consolidated Financial Statements  The consolidated financial statements include the company’s accounts and all significant intercompany balances and transactions are eliminated. Unconsolidated entities are included in the financial statements on an equity basis. As of June 30, 2018, the company owns a 62.5% limited partner interest and a 2.0% general partner interest in Green Plains Partners LP. Public investors own the remaining 35.5% limited partner interest in the partnership. The company determined that the limited partners in the partnership with equity at risk lack the power, through voting rights or similar rights, to direct the activities that most significantly impact partnership’s economic performance; therefore, the partnership is considered a variable interest entity. The company, through its ownership of the general partner interest in the partnership, has the power to direct the activities that most significantly affect economic performance and is obligated to absorb losses and has the right to receive benefits that could be significant to the partnership. Therefore, the company is considered the primary beneficiary and consolidates the partnership in the company’s financial statements. The assets of the partnership cannot be used by the company for general corporate purposes. The partnership’s consolidated total assets as of June 30, 2018 and December 31, 2017, excluding intercompany balances, were $73.2 million and $74.9 million, respectively, and primarily consisted of property and equipment and goodwill. The partnership’s consolidated total liabilities as of June 30, 2018 and December 31, 2017, excluding intercompany balances, were $155.1 million and $153.0 million, respectively, which primarily consisted of long-term debt as discussed in Note 9 – Debt . The liabilities recognized as a result of consolidating the partnership do not represent additional claims on our general assets. The company also owns a 90.0% interest in BioProcess Algae, a joint venture formed in 2008, and consolidates their results in its consolidated financial statements.  The accompanying unaudited consolidated financial statements are prepared in accordance with GAAP for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Because they do not include all of the information and notes required by GAAP, the consolidated financial statements should be read in conjunction with the company’s annual report on Form 10-K for the year ended December 31, 2017 .  The unaudited financial information reflects adjustments which are, in the opinion of management, necessary for a fair presentation of results of operations, financial position and cash flows for the periods presented. The adjustments are normal and recurring in nature, unless otherwise noted. Interim period results are not necessarily indicative of the results to be expected for the entire year.
Reclassifications	Reclassifications  Certain prior year amounts were reclassified to conform to the current year presentation. These reclassifications did not affect total revenues, costs and expenses, net income (loss) or stockholders’ equity.
Use Of Estimates In The Preparation Of Consolidated Financial Statements	Use of Estimates in the Preparation of Consolidated Financial Statements  The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. The company bases its estimates on historical experience and assumptions it believes are proper and reasonable under the circumstances and regularly evaluates the appropriateness of its estimates and assumptions. Actual results could differ from those estimates. Key accounting policies, including but not limited to those relating to revenue recognition, depreciation of property and equipment, carrying value of intangible assets, impairment of long-lived assets and goodwill, derivative financial instruments, and accounting for income taxes, are impacted significantly by judgments, assumptions and estimates used in the preparation of the consolidated financial statements.
Description Of Business	Description of Business  The company operates within four business segments: (1) ethanol production, which includes the production of ethanol and distillers grains, and recovery of corn oil, (2) agribusiness and energy services, which includes grain handling and storage, commodity marketing and merchant trading for company-produced and third-party ethanol, distillers grains, corn oil, natural gas and other commodities, (3) food and ingredients, which includes cattle feeding, vinegar production and food-grade corn oil operations and (4) partnership, which includes fuel storage and transportation services.
Cash and Cash Equivalents	Cash and Cash Equivalents  Cash and cash equivalents includes bank deposits as well as short-term, highly liquid investments with original maturities of three months or less.
Restricted Cash	Restricted Cash  The company has restricted cash, which can only be used for funding letters of credit or for payment towards a revolving credit agreement. Restricted cash also includes cash margins and securities pledged to commodity exchange clearinghouses. To the degree these segregated balances are cash and cash equivalents, they are considered restricted cash on the consolidated statements of cash flows.
Revenue Recognition	Revenue Recognition  The company recognizes revenue at the point in time when the product or service is transferred to the customer.  Sales of ethanol, distillers grains, corn oil, natural gas and other commodities by the company’s marketing business are recognized when obligations under the terms of a contract with a customer are satisfied. Generally, this occurs with the transfer of control of products or services. Revenues related to marketing for third parties are presented on a gross basis as the company controls the product prior to the sale to the end customer, takes title of the product and has inventory risk. Unearned revenue is recorded for goods in transit when the company has received payment but control has not yet been transferred to the customer. Revenues for receiving, storing, transferring and transporting ethanol and other fuels are recognized when the product is delivered to the customer.  The company routinely enters into physical-delivery energy commodity purchase and sale agreements. At times, the company settles these transactions by transferring its obligations to other counterparties rather than delivering the physical commodity. Energy trading transactions are reported net as a component of revenue. All other transactions are reported net as either a component of revenue or cost of goods sold, depending on their position as a gain or loss. Revenues also include realized gains and losses on related derivative financial instruments and reclassifications of realized gains and losses on cash flow hedges from accumulated other comprehensive income or loss.  Sales of products, including agricultural commodities, cattle and vinegar, are recognized when control of the product is transferred to the customer, which depends on the agreed upon shipment or delivery terms. Revenues related to grain merchandising are presented gross and include shipping and handling, which is also a component of cost of goods sold. Revenues from grain storage are recognized when services are rendered.  A substantial portion of the partnership revenues are derived from fixed-fee commercial agreements for storage, terminal or transportation services. The partnership recognizes revenue upon transfer of control of product from its storage tanks and fuel terminals, when railcar volumetric capacity is provided, and as truck transportation services are performed.
Shipping and Handling Costs	Shipping and Handling Costs  We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products. Accordingly, we record customer payments associated with shipping and handling costs as a component of revenue, and classify such costs as a component of cost of goods sold.
Cost Of Goods Sold	Cost of Goods Sold  Cost of goods sold includes direct labor, materials, shipping and plant overhead costs. Direct labor includes all compensation and related benefits of non-management personnel involved in ethanol and vinegar production, and cattle feeding operations. Grain purchasing and receiving costs, excluding labor costs for grain buyers and scale operators, are also included in cost of goods sold. Materials include the cost of corn feedstock, denaturant, process chemicals, cattle and veterinary supplies. Corn feedstock costs include gains and losses on related derivative financial instruments not designated as cash flow hedges, inbound freight charges, inspection costs and transfer costs, as well as reclassifications of gains and losses on cash flow hedges from accumulated other comprehensive income or loss. Plant overhead consists primarily of plant and feedlot utilities, repairs and maintenance, yard expenses and outbound freight charges. Shipping costs incurred by the company, including railcar costs, are also reflected in cost of goods sold.  The company uses exchange-traded futures and options contracts and forward purchase and sales contracts to attempt to minimize the effect of price changes on grain, natural gas and cattle inventories. Exchange-traded futures and options contracts are valued at quoted market prices and settled predominantly in cash. The company is exposed to loss when counterparties default on forward purchase and sale contracts. Grain inventories held for sale and forward purchase and sale contracts are valued at market prices when available or other market quotes adjusted for differences, primarily in transportation, between the exchange-traded market and local market where the terms of the contract is based. Changes in forward purchase contracts and exchange-traded futures and options contracts are recognized as a component of cost of goods sold. 
Operations and Maintenance Expenses	Operations and Maintenance Expenses  In the partnership segment, transportation expenses represent the primary component of operations and maintenance expenses. Transportation expenses include railcar leases, freight and shipping of the company’s ethanol and co-products, as well as costs incurred storing ethanol at destination terminals.
Derivative Financial Instruments	Derivative Financial Instruments  The company uses various derivative financial instruments, including exchange-traded futures and exchange-traded and over-the-counter options contracts, to attempt to minimize risk and the effect of commodity price changes including but not limited to, corn, ethanol, cattle, natural gas and crude oil. The company monitors and manages this exposure as part of its overall risk management policy to reduce the adverse effect market volatility may have on its operating results. The company may hedge these commodities as one way to mitigate risk; however, there may be situations when these hedging activities themselves result in losses.  By using derivatives to hedge exposures to changes in commodity prices, the company is exposed to credit and market risk. The company’s exposure to credit risk includes the counterparty’s failure to fulfill its performance obligations under the terms of the derivative contract. The company minimizes its credit risk by entering into transactions with high quality counterparties, limiting the amount of financial exposure it has with each counterparty and monitoring their financial condition. Market risk is the risk that the value of the financial instrument might be adversely affected by a change in commodity prices or interest rates. The company manages market risk by incorporating parameters to monitor exposure within its risk management strategy, which limits the types of derivative instruments and strategies the company can use and the degree of market risk it can take using derivative instruments.  The company evaluates its physical delivery contracts to determine if they qualify for normal purchase or sale exemptions which are expected to be used or sold over a reasonable period in the normal course of business. Contracts that do not meet the normal purchase or sale criteria are recorded at fair value. Changes in fair value are recorded in operating income unless the contracts qualify for, and the company elects, cash flow hedge accounting treatment.  Certain qualifying derivatives related to ethanol production, agribusiness and energy services, and food and ingredients segments are designated as cash flow hedges. The company evaluates the derivative instrument to ascertain its effectiveness prior to entering into cash flow hedges. Unrealized gains and losses are reflected in accumulated other comprehensive income or loss until the gain or loss from the underlying hedged transaction is realized. When it becomes probable a forecasted transaction will not occur, the cash flow hedge treatment is discontinued, which affects earnings. These derivative financial instruments are recognized in current assets or other current liabilities at fair value.  At times, the company hedges its exposure to changes in inventory values and designates qualifying derivatives as fair value hedges. The carrying amount of the hedged inventory is adjusted in the current period for changes in fair value. Ineffectiveness of the hedges is recognized in the current period to the extent the change in fair value of the inventory is not offset by the change in fair value of the derivative.
Recent Accounting Pronouncements	     Recent Accounting Pronouncements Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 606, Revenue from Contracts with Customers. Please refer to Note 2 – Revenue for further details.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 230, Statement of Cash Flows: Restricted Cash , which requires amounts generally described as restricted cash and restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amended guidance was applied retrospectively. As a result, net cash used in operating activities for the six months ended June 30, 2017 was adjusted to exclude the change in restricted cash and decreased the previously reported balance by $25.2 million. Net cash provided by financing activities for the six months ended June 30, 2017 was adjusted to exclude the change in restricted cash and decreased the previously reported balance by $18.1 million.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 740, Income Taxes: Intra-Entity Transfers of Assets other than Inventory , which requires the recognition of current and deferred income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amended guidance is required on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the year of adoption. The adoption of the guidance did not have an impact to the financial statements.  Effective January 1, 2018, the company adopted the amended guidance in ASC Topic 805, Business Combinations: Clarifying the Definition of a Business , which clarifies the definition of a business and provides guidance to assist companies and other reporting organizations evaluate whether transactions should be accounted for as acquisitions or disposals of assets or businesses. The amended guidance will be applied prospectively.  Effective January 1, 2018, the company early adopted the amended guidance in ASC Topic 350, Intangibles – Goodwill and Other: Simplifying the Test for Goodwill Impairment , which simplifies the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. The annual goodwill impairment test will be performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge equal to the amount by which the carrying amount exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit, would be recognized. The amended guidance will be applied prospectively, and used when the annual impairment test is performed in the current year. The company does not believe the new guidance will have a material impact on the consolidated financial statements.  Effective January 1, 2018, the company early adopted the amended guidance in ASC Topic 220, Income Statement – Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendment eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act and is intended to improve the usefulness of information reported. As a result, the company recorded a $2.8 million reclassification from accumulated other comprehensive income to retained earnings during the first quarter of 2018. It is the company’s policy to release income tax effects from accumulated other comprehensive income using the portfolio approach.  Effective January 1, 2019, the company will adopt the amended guidance in ASC Topic 842, Leases , which aims to make leasing activities more transparent and comparable, requiring substantially all leases to be recognized by lessees on the balance sheet as a right-of-use asset and corresponding lease liability, including leases currently accounted for as operating leases. The new standard is effective for fiscal years and interim periods within those years, beginning after December 15, 2018. The standard requires a modified retrospective transition approach and allows for early adoption. In July 2018, the FASB issued Accounting Standards Update, Leases (Topic 842): Targeted Improvements , which provides an option to apply the transition provisions of the new standard at adoption date instead of the earliest comparative period presented in the financial statements. The company will elect to use this optional transition method.  The company has established an implementation team which continues to review current accounting policies, internal controls, processes, and disclosures that will change as a result of adopting the new standard. The company has gathered information on existing leases to obtain a complete population of leases upon adoption. The company is also working with a third-party vendor to implement a lease accounting system, which will assist in delivering the required accounting changes and disclosures. The new standard will significantly increase right-of-use assets and lease liabilities on the company’s consolidated balance sheet, primarily due to operating leases that are currently not recognized on the balance sheet. In addition, it will also require expanded disclosures in the company’s consolidated financial statements. The company expects to complete its assessment of the impact of the new guidance on its consolidated financial statements in the second half of 2018 .

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue [Abstract]
Disaggregatation Of Revenue By Major Source	The following table disaggregates revenue by major source for the three and six months ended June 30, 2018 (in thousands):   Three Months Ended June 30, 2018  Ethanol Production Agribusiness & Energy Services Food & Ingredients Partnership Eliminations Total  Revenues:  Revenues from contracts with customers under ASC Topic 606:  Ethanol $ 634 $ - $ - $ - $ - $ 634  Distillers grains 62,657 - - - - 62,657  Cattle and vinegar - - 222,059 - - 222,059  Service revenues - - - 1,229 - 1,229  Other 1,201 806 - - - 2,007  Intersegment revenues 875 - 38 - (913) -  Total revenues from contracts with customers 65,367 806 222,097 1,229 (913) 288,586  Revenues from contracts accounted for as derivatives under ASC Topic 815 (1):  Ethanol 451,083 106,117 - - - 557,200  Distillers grains 49,940 32,706 - - - 82,646  Corn oil 19,132 3,488 5,350 - - 27,970  Grain 337 22,843 - - - 23,180  Cattle and vinegar - - (1,522) - - (1,522)  Other 4,272 4,114 - - - 8,386  Intersegment revenues 3,344 14,128 - 2,517 (19,989) -  Total revenues from contracts accounted for as derivatives 528,108 183,396 3,828 2,517 (19,989) 697,860  Leasing revenues under ASC Topic 840 (2) - - - 22,094 (21,703) 391  Total Revenues $ 593,475 $ 184,202 $ 225,925 $ 25,840 $ (42,605) $ 986,837     Six Months Ended June 30, 2018  Ethanol Production Agribusiness & Energy Services Food & Ingredients Partnership Eliminations Total  Revenues:  Revenues from contracts with customers under ASC 606:  Ethanol $ 3,100 $ - $ - $ - $ - $ 3,100  Distillers grains 119,902 - - - - 119,902  Cattle and vinegar - - 489,475 - - 489,475  Service revenues - - - 2,447 - 2,447  Other 1,332 1,483 - - - 2,815  Intersegment revenues 1,537 - 80 - (1,617) -  Total revenues from contracts with customers 125,871 1,483 489,555 2,447 (1,617) 617,739  Revenues from contracts accounted for as derivatives under ASC Topic 815 (1):  Ethanol 893,656 228,658 - - - 1,122,314  Distillers grains 90,401 53,918 - - - 144,319  Corn oil 35,602 12,158 7,637 - - 55,397  Grain 470 37,129 - - - 37,599  Cattle and vinegar - - 6,884 - - 6,884  Other 8,556 38,515 - - - 47,071  Intersegment revenues 4,635 25,557 - 4,689 (34,881) -  Total revenues from contracts accounted for as derivatives 1,033,320 395,935 14,521 4,689 (34,881) 1,413,584  Leasing revenues under ASC 840 (2) - - - 44,589 (43,788) 801  Total Revenues $ 1,159,191 $ 397,418 $ 504,076 $ 51,725 $ (80,286) $ 2,032,124      (1) Revenues from contracts accounted for as derivatives represent physically settled derivative sales that are outside the scope of ASC Topic 606, Revenue from Contracts with Customers (ASC Topic 606), where the company recognizes revenue when control of the inventory is transferred within the meaning of ASC Topic 606 as required by ASC Topic 610-20, Gains and Losses from the Derecognition of Nonfinancial Assets . (2) Leasing revenues do not represent revenues recognized from contracts with customers under ASC Topic 606, and continue to be accounted for under ASC Topic 840, Leases .

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2018
Asset Purchase Agreement With Cargill Cattle Feeders, LLC [Member]
Business Acquisition [Line Items]
Schedule Of Identifiable Assets Acquired And Liabilities Assumed	  The following is a summary of the assets acquired and liabilities assumed (in thousands):     Amounts of Identifiable Assets Acquired and Liabilities Assumed  Inventory $ 22,450  Prepaid expenses and other 52  Property and equipment, net 36,960   Current liabilities (180)  Total identifiable net assets $ 59,282 

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule Of Assets And Liabilities Fair Value	The company’s assets and liabilities by level are as follows (in thousands):     Fair Value Measurements at June 30, 2018  Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs  (Level 1) (Level 2) Total  Assets:  Cash and cash equivalents $ 235,133 $ - $ 235,133  Restricted cash 15,863 - 15,863  Inventories carried at market - 58,710 58,710  Unrealized gains on derivatives - 18,969 18,969  Other assets 114 - 114  Total assets measured at fair value $ 251,110 $ 77,679 $ 328,789   Liabilities:  Accounts payable (1) $ - $ 9,961 $ 9,961  Unrealized losses on derivatives - 22,868 22,868  Other - 84 84  Total liabilities measured at fair value $ - $ 32,913 $ 32,913      Fair Value Measurements at December 31, 2017  Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs  (Level 1) (Level 2) Total  Assets:  Cash and cash equivalents $ 266,651 $ - $ 266,651  Restricted cash 45,709 - 45,709  Inventories carried at market - 26,834 26,834  Unrealized gains on derivatives - 12,045 12,045  Other assets 115 - 115  Total assets measured at fair value $ 312,475 $ 38,879 $ 351,354   Liabilities:  Accounts payable (1) $ - $ 37,401 $ 37,401  Unrealized losses on derivatives - 12,884 12,884  Other liabilities - 92 92  Total liabilities measured at fair value $ - $ 50,377 $ 50,377   (1) Accounts payable is generally stated at historical amounts with the exception of $10.0 million and $ 37.4 million at June 30, 2018 and December 31, 2017 , respectively, related to certain delivered inventory for which the payable fluctuates based on changes in commodity prices. These payables are hybrid financial instruments for which the company has elected the fair value option.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
Summary Of Financial Data	The following tables set forth certain financial data for the company’s operating segments (in thousands):     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Revenues:  Ethanol production:  Revenues from external customers $ 589,256 $ 617,297 $ 1,153,019 $ 1,237,176  Intersegment revenues 4,219 1,549 6,172 3,045  Total segment revenues 593,475 618,846 1,159,191 1,240,221  Agribusiness and energy services:  Revenues from external customers 170,074 150,755 371,861 319,066  Intersegment revenues 14,128 9,781 25,557 19,273  Total segment revenues 184,202 160,536 397,418 338,339  Food and ingredients:  Revenues from external customers 225,887 116,660 503,996 214,682  Intersegment revenues 38 37 80 75  Total segment revenues 225,925 116,697 504,076 214,757  Partnership:  Revenues from external customers 1,620 1,551 3,248 3,023  Intersegment revenues 24,220 23,514 48,477 49,271  Total segment revenues 25,840 25,065 51,725 52,294  Revenues including intersegment activity 1,029,442 921,144 2,112,410 1,845,611  Intersegment eliminations (42,605) (34,881) (80,286) (71,664)  Revenues as reported $ 986,837 $ 886,263 $ 2,032,124 $ 1,773,947  Refer to Note 2 - Revenue , for further disaggregation of revenue by operating segment.    Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Cost of goods sold:  Ethanol production $ 581,613 $ 612,646 $ 1,146,172 $ 1,211,784  Agribusiness and energy services 165,174 152,110 366,886 318,504  Food and ingredients 206,440 100,009 466,205 183,044  Partnership - - - -  Intersegment eliminations (42,602) (34,746) (80,303) (71,417)  $ 910,625 $ 830,019 $ 1,898,960 $ 1,641,915     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Operating income (loss):  Ethanol production $ (17,214) $ (22,459) $ (44,743) $ (29,057)  Agribusiness and energy services 12,166 3,083 19,230 9,452  Food and ingredients 12,981 10,714 25,566 20,340  Partnership 16,129 14,798 31,489 31,417  Intersegment eliminations 144 (80) 212 (155)  Corporate activities (12,441) (9,842) (23,914) (18,391)  $ 11,765 $ (3,786) $ 7,840 $ 13,606      Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  EBITDA:  Ethanol production $ 3,362 $ (873) $ (3,733) $ 12,951  Agribusiness and energy services 12,796 3,747 20,498 10,760  Food and ingredients 19,044 13,955 35,041 26,469  Partnership 17,138 16,066 33,761 33,960  Intersegment eliminations 144 (80) 212 (155)  Corporate activities (10,642) (8,742) (20,817) (16,063)  $ 41,842 $ 24,073 $ 64,962 $ 67,922    Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Depreciation and amortization:  Ethanol production $ 20,559 $ 20,142 $ 40,995 $ 40,484  Agribusiness and energy services 618 659 1,248 1,319  Food and ingredients 3,444 3,240 6,848 6,120  Partnership 1,105 1,247 2,286 2,501  Corporate activities 1,097 900 1,920 1,847  $ 26,823 $ 26,188 $ 53,297 $ 52,271  
Schedule Of Reconciliation Of Net Income (Loss) To EBITDA	The following table reconciles net income (loss) to EBITDA (in thousands):     Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Net income (loss) $ 3,751 $ (11,796) $ (15,704) $ (10,145)  Interest expense 22,021 19,430 44,149 37,926  Income tax benefit (10,753) (9,749) (16,780) (12,130)  Depreciation and amortization 26,823 26,188 53,297 52,271  EBITDA $ 41,842 $ 24,073 $ 64,962 $ 67,922 
Summary Of Total Assets For Operating Segments	The following table sets forth total assets by operating segment (in thousands):    June 30, 2018 December 31, 2017  Total assets (1) :  Ethanol production $ 1,090,323 $ 1,144,459  Agribusiness and energy services 438,139 554,981  Food and ingredients 704,624 725,232  Partnership 73,255 74,935  Corporate assets 290,902 295,217  Intersegment eliminations (11,470) (10,174)  $ 2,585,773 $ 2,784,650  Asset balances by segment exclude intercompany receivable balances.

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2018
Inventories [Abstract]
Schedule of Inventories	  June 30, 2018 December 31, 2017  Finished goods $ 143,665 $ 146,269  Commodities held for sale 42,639 65,693  Raw materials 104,119 144,520  Work-in-process 298,738 320,664  Supplies and parts 36,141 34,732  $ 625,302 $ 711,878 

Derivative Financial Instrume31

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Schedule Of Fair Values Of Derivative Financial Instruments	  Asset Derivatives' Liability Derivatives'  Fair Value Fair Value  June 30, 2018 December 31, 2017 June 30, 2018 December 31, 2017  Derivative financial instruments (1) $ 18,969 $ 12,045 $ - $ 12,884  Accrued and other liabilities - - 22,868 -  Other liabilities - - 84 92  Total $ 18,969 $ 12,045 $ 22,952 $ 12,976  (1) At June 30, 2018 , derivative financial instruments, as reflected on the balance sheet, include net unrealized gains on exchange traded futures and options contracts of $11.7 million, which included $1.1 million of net unrealized gains on derivative financial instruments designated as cash flow hedging instruments. At December 31, 2017 , derivative financial instruments, as reflected on the balance sheet, includes net unrealized gains on exchange traded futures and options contracts of $8.5 million, which included $0.3 million of net unrealized gains on derivative financial instruments designated as cash flow hedging instruments.
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The gains or losses recognized in income and other comprehensive income related to the company’s derivative financial instruments and the line items on the consolidated financial statements where they are reported are as follows (in thousands) :     Location of Gain or (Loss) Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income  Reclassified from Accumulated Other Three Months Ended June 30, Six Months Ended June 30,  Comprehensive Income into Income 2018 2017 2018 2017  Revenues $ (313) $ 2,825 $ 1,448 $ 6,977  Cost of goods sold 1,079 (648) 101 182  Net gain recognized in earnings before tax $ 766 $ 2,177 $ 1,549 $ 7,159     Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives  Gain or (Loss) Recognized in Three Months Ended June 30, Six Months Ended June 30,  Other Comprehensive Income on Derivatives 2018 2017 2018 2017  Commodity contracts $ (5,422) $ (5,444) $ 16,844 $ (2,834)     Amount of Gain or (Loss)  Recognized in Income on Derivatives  Derivatives Not Designated Location of Gain or (Loss) Recognized in Three Months Ended June 30, Six Months Ended June 30,  as Hedging Instruments Income on Derivatives 2018 2017 2018 2017  Commodity contracts Revenues $ 7,027 $ (5,215) $ 7,963 $ (10,263)  Commodity contracts Costs of goods sold 7,121 3,284 123 15,220  $ 14,148 $ (1,931) $ 8,086 $ 4,957 As of June 30, 2018 , the following amounts were recorded on the consolidated balance sheets related to cumulative basis adjustments for the fair value hedged items (in thousands):    Line Item in the Consolidated Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets  Inventories $ 46,561 $ 3,714  As of December 31, 2017, no amounts were recorded on the consolidated balance sheets related to cumulative basis adjustments for the fair value hedged items.  Effect of Cash Flow and Fair Value Hedge Accounting on the Statement of Financial Performance  The effect of cash flow and fair value hedges and the line items on the consolidated statements of operations where they are reported are as follows (in thousands):    Location and Amount of Gain or (Loss) Recognized in  Income on Cash Flow and Fair Value Hedging Relationships  for the Three Months Ended June 30,  2018 2017  Revenue Cost of Goods Sold Revenue Cost of Goods Sold  Gain (loss) on cash flow hedging relationships:   Commodity contracts:  Amount of gain (loss) reclassified from accumulated other comprehensive income into income $ (313) $ 1,079 $ 2,825 $ (648)   Gain (loss) on fair value hedging relationships:   Commodity contracts:  Hedged item - 1,103 (31) (2,526)  Derivatives designated as hedging instruments - (446) (578) 2,406   Total amounts of income and expense line items presented in the statement of operations in which the effects of cash flow or fair value hedges are recorded $ (313) $ 1,736 $ 2,216 $ (768)    Location and Amount of Gain or (Loss) Recognized in  Income on Cash Flow and Fair Value Hedging Relationships  for the Six Months Ended June 30,  2018 2017  Revenue Cost of Goods Sold Revenue Cost of Goods Sold  Gain on cash flow hedging relationships:   Commodity contracts:  Amount of gain reclassified from accumulated other comprehensive income into income $ 1,448 $ 101 $ 6,977 $ 182   Gain (loss) on fair value hedging relationships:   Commodity contracts:  Hedged item - 10,496 1,390 (4,454)  Derivatives designated as hedging instruments - (8,878) (1,673) 5,445   Total amounts of income and expense line items presented in the statement of operations in which the effects of cash flow or fair value hedges are recorded $ 1,448 $ 1,719 $ 6,694 $ 1,173 
Schedule Of Volumes of Open Commodity Derivative Positions [Member]
Schedule Of Open Position Derivative Financial Instruments	  June 30, 2018  Exchange Traded Non-Exchange Traded  Derivative Instruments Net Long & (Short) (1) Long (2) (Short) (2) Unit of Measure Commodity   Futures (52,345) Bushels Corn, Soybeans and Wheat  Futures 500 (3) Bushels Corn  Futures (4,750) (4) Bushels Corn  Futures (36,313) Gallons Ethanol  Futures (18,270) (3) Gallons Ethanol  Futures 10,050 MmBTU Natural Gas  Futures (9,765) (4) MmBTU Natural Gas  Futures (18,390) Pounds Livestock  Futures (292,280) (3) Pounds Cattle  Futures (11) Barrels Crude Oil  Futures (43) (4) Barrels Crude Oil  Futures 2,814 (3) Gallons Natural Gasoline  Options 5,304 Bushels Corn, Soybeans and Wheat  Options 9,467 Gallons Ethanol  Options (1,898) MmBTU Natural Gas  Options (3,732) Pounds Livestock  Options 67 Barrels Crude Oil  Forwards 50,708 (555) Bushels Corn and Soybeans  Forwards 32,986 (289,259) Gallons Ethanol  Forwards 368 (638) Tons DDG  Forwards 23,463 (122,826) Pounds Corn Oil  Forwards 17,086 (1,931) MmBTU Natural Gas  Forwards 44 (44) Barrels Crude Oil   (1) Exchange traded futures and options are presented on a net long and (short) position basis. Options are presented on a delta-adjusted basis. (2) Non-exchange traded forwards are presented on a gross long and (short) position basis including both fixed-price and basis contracts. (3) Futures used for cash flow hedges. (4) Futures used for fair value hedges. 

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2018
Debt [Abstract]
Schedule Of The Components Of Long-Term Debt	The components of long-term debt are as follows (in thousands):    June 30, 2018 December 31, 2017  Corporate:  $500.0 million term loan $ 496,250 $ 498,750  $120.0 million convertible notes due 2018 62,953 61,442  $170.0 million convertible notes due 2022 139,654 136,739  Green Plains Partners:  $235.0 million revolving credit facility 128,900 126,900  Other 27,129 27,744  Total face value of long-term debt 854,886 851,575  Unamortized debt issuance costs (17,023) (16,256)  Less: current portion of long-term debt (69,752) (67,923)  Total long-term debt $ 768,111 $ 767,396 
Schedule Of Short-term Notes Payable And Other Borrowings	The components of short-term notes payable and other borrowings are as follows:       June 30, 2018 December 31, 2017  Green Plains Cattle:  $425.0 million revolver $ 243,147 $ 270,860  Green Plains Grain:  $125.0 million revolver 71,800 75,000  Green Plains Trade:  $300.0 million revolver 131,170 180,320  Green Plains Commodity Management:  $20.0 million hedge line 11,355 -  $ 457,472 $ 526,180  

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Stock-Based Compensation [Abstract]
Schedule Of Stock Option Activity	The activity related to the exercisable stock options for the six months ended June 30, 2018 , is as follows:     Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands)  Outstanding at December 31, 2017 143,750 $ 12.44 1.8 $ 635  Granted - - - -  Exercised (15,000) 10.00 - 120  Forfeited - - - -  Expired - - - -  Outstanding at June 30, 2018 128,750 $ 12.72 1.5 $ 718  Exercisable at June 30, 2018 (1) 128,750 $ 12.72 1.5 $ 718   Represents in-the-money options
Schedule of Non-Vest Stock Award and Deferred Stock Unit Activity	The non-vested stock award and deferred stock unit activity for the six months ended June 30, 2018 , is as follows:     Non-Vested Shares and Deferred Stock Units Weighted- Average Grant- Date Fair Value Weighted-Average Remaining Vesting Term (in years)  Non-Vested at December 31, 2017 1,068,947 $ 20.41  Granted 660,509 18.20  Forfeited (7,741) 20.17  Vested (501,621) 20.62  Non-Vested at June 30, 2018 1,220,094 $ 19.12 2.1  
The Weighted Average Assumptions Used by the Company in Applying the Monte Carlo Valuation Model for Performance Share Grants	The weighted average assumptions used by the company in applying the Monte Carlo valuation model for performance share grants during the six months ended June 30, 2018 are illustrated in the following table:      Six Months Ended June 30, 2018  Risk-free interest rate 2.44 %  Dividend yield 2.64 %  Expected volatility 45.11 % 
Schedule of Non-vested Unit-based Awards Activity	The non-vested unit-based awards activity for the six months ended June 30, 2018, is as follows:     Non-Vested Shares and Deferred Stock Units Weighted- Average Grant- Date Fair Value Weighted-Average Remaining Vesting Term (in years)  Non-Vested at December 31, 2017 11,549 $ 19.06  Granted - -  Forfeited - -  Vested (11,549) 19.06  Non-Vested at June 30, 2018 - $ - 0.0  

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule Of Basic And Diluted Earnings Per Share	  Three Months Ended June 30, Six Months Ended June 30,  2018 2017 2018 2017  Basic EPS:  Net loss attributable to Green Plains $ (994) $ (16,366) $ (25,111) $ (19,963)  Weighted average shares outstanding - basic 40,194 40,220 40,168 39,326  EPS - basic $ (0.02) $ (0.41) $ (0.63) $ (0.51)   Diluted EPS:  Net loss attributable to Green Plains $ (994) $ (16,366) $ (25,111) $ (19,963)  Weighted average shares outstanding - diluted 40,194 40,220 40,168 39,326  EPS - diluted $ (0.02) $ (0.41) $ (0.63) $ (0.51) 

Stockholders Equity (Tables)

Stockholders Equity (Tables)	6 Months Ended
	Jun. 30, 2018
Stockholders Equity [Abstract]
Schedule Of Stockholders Equity	   Accum. Total  Additional Other Green Plains Non- Total  Common Stock Paid-in Retained Comp. Treasury Stock Stockholders' Controlling Stockholders'  Shares Amount Capital Earnings Income Shares Amount Equity Interests Equity   Balance, December 31, 2017 46,410 $ 46 $ 685,019 $ 325,411 $ (13,110) 5,326 $ (55,184) $ 942,182 $ 116,954 $ 1,059,136  Reclassification of certain tax effects from other comprehensive loss (Note 1) - - - 2,787 (2,787) - - - - -  Balance, January 1, 2018 46,410 46 685,019 328,198 (15,897) 5,326 (55,184) 942,182 116,954 1,059,136  Net income (loss) - - - (25,111) - - - (25,111) 9,407 (15,704)  Cash dividends and distributions declared - - - (9,682) - - - (9,682) (10,898) (20,580)  Other comprehensive income before reclassification - - - - 12,873 - - 12,873 - 12,873  Amounts reclassified from accumulated other comprehensive income - - - - (1,184) - - (1,184) - (1,184)  Other comprehensive income, net of tax - - - - 11,689 - - 11,689 - 11,689  Exchange of 3.25% convertible notes due 2018 - - - - - - 1 1 - 1  Stock-based compensation 336 1 2,300 - - - - 2,301 120 2,421  Stock options exercised 15 - 150 - - - - 150 - 150  Balance, June 30, 2018 46,761 $ 47 $ 687,469 $ 293,405 $ (4,208) 5,326 $ (55,183) $ 921,530 $ 115,583 $ 1,037,113 
Reclassification Accumulated Other Comprehensive Income (Loss)	  Three Months Ended June 30, Six Months Ended June 30, Statements of Operations  2018 2017 2018 2017 Classification  Gains on cash flow hedges:  Commodity derivatives $ (313) $ 2,825 $ 1,448 $ 6,977 Revenues  Commodity derivatives 1,079 (648) 101 182 Cost of goods sold  Total 766 2,177 1,549 7,159 Loss before income taxes  Income tax benefit 185 824 365 2,672 Income tax benefit  Amounts reclassified from accumulated other comprehensive income $ 581 $ 1,353 $ 1,184 $ 4,487 

Commitments And Contingencies (

Commitments And Contingencies (Tables)	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies [Abstract]
Schedule of Aggregate Minimum Lease Payments	  Year Ending December 31, Amount  2018 $ 17,128  2019 24,298  2020 17,939  2021 9,985  2022 6,240  Thereafter 24,502  Total $ 100,092 

Basis Of Presentation And Des37

Basis Of Presentation And Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands	Jul. 01, 2015	Mar. 31, 2018USD ($)	Jun. 30, 2018USD ($)segment	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Asset			$ 2,585,773		$ 2,784,650
Total liabilities			$ 1,548,660		1,725,514
Reclassification from accumulated other comprehensive income to retained earnings		$ 2,800
Number of operating segments | segment			4
Increase in cash flows from operating activities, Share-based compensation			$ 5,435	$ 5,497
Green Plains Partners L.P. [Member]
Asset			73,200		74,900
Total liabilities			$ 155,100		$ 153,000
Accounting Standards Update 2016-18 [Member]
Increase (Decrease) in Restricted Cash for Operating Activities				25,200
Proceeds from (Repayments of) Restricted Cash, Financing Activities				$ 18,100
BioProcess Algae [Member]
Less than wholy owned subsidiary, parent ownership perecentage			90.00%
IPO [Member] | Limited Partner [Member]
Ownership interest, public, percentage	35.50%
IPO [Member] | Limited Partner [Member] | Green Plains Inc. [Member]
Ownership interest, percentage	62.50%
IPO [Member] | General Partner [Member] | Green Plains Inc. [Member]
Ownership interest, percentage	2.00%

Revenue (Narrative) (Details)

Revenue (Narrative) (Details)	6 Months Ended
	Jun. 30, 2018
Minimum [Member]
Revenue, Performance Obligation, Payment Terms	10 days
Maximum [Member]
Revenue, Performance Obligation, Payment Terms	30 days

Revenue (Disaggregatation Of Re

Revenue (Disaggregatation Of Revenue By Major Source) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Total revenues from contracts with customers	$ 288,586		$ 617,739
Revenues from contracts accounted for as derivatives under ASC 815	697,860		1,413,584
Leasing revenues under ASC Topic 840	391		801
Total revenues	986,837	$ 886,263	2,032,124	$ 1,773,947
Ethanol [Member]
Total revenues from contracts with customers	634		3,100
Revenues from contracts accounted for as derivatives under ASC 815	557,200		1,122,314
Distiller Grains [Member]
Total revenues from contracts with customers	62,657		119,902
Revenues from contracts accounted for as derivatives under ASC 815	82,646		144,319
Corn Oil [Member]
Revenues from contracts accounted for as derivatives under ASC 815	27,970		55,397
Grain [Member]
Revenues from contracts accounted for as derivatives under ASC 815	23,180		37,599
Cattle And Vinegar [Member]
Total revenues from contracts with customers	222,059		489,475
Revenues from contracts accounted for as derivatives under ASC 815	(1,522)		6,884
Service Revenues [Member]
Total revenues from contracts with customers	1,229		2,447
Other [Member]
Total revenues from contracts with customers	2,007		2,815
Revenues from contracts accounted for as derivatives under ASC 815	8,386		47,071
Ethanol Production [Member]
Total revenues from contracts with customers	65,367		125,871
Revenues from contracts accounted for as derivatives under ASC 815	528,108		1,033,320
Total revenues	593,475	618,846	1,159,191	1,240,221
Ethanol Production [Member] | Ethanol [Member]
Total revenues from contracts with customers	634		3,100
Revenues from contracts accounted for as derivatives under ASC 815	451,083		893,656
Ethanol Production [Member] | Distiller Grains [Member]
Total revenues from contracts with customers	62,657		119,902
Revenues from contracts accounted for as derivatives under ASC 815	49,940		90,401
Ethanol Production [Member] | Corn Oil [Member]
Revenues from contracts accounted for as derivatives under ASC 815	19,132		35,602
Ethanol Production [Member] | Grain [Member]
Revenues from contracts accounted for as derivatives under ASC 815	337		470
Ethanol Production [Member] | Other [Member]
Total revenues from contracts with customers	1,201		1,332
Revenues from contracts accounted for as derivatives under ASC 815	4,272		8,556
Ethanol Production [Member] | Intersegment Revenues [Member]
Total revenues from contracts with customers	875		1,537
Revenues from contracts accounted for as derivatives under ASC 815	3,344		4,635
Total revenues	4,219	1,549	6,172	3,045
Agribusiness And Energy Services [Member]
Total revenues from contracts with customers	806		1,483
Revenues from contracts accounted for as derivatives under ASC 815	183,396		395,935
Total revenues	184,202	160,536	397,418	338,339
Agribusiness And Energy Services [Member] | Ethanol [Member]
Revenues from contracts accounted for as derivatives under ASC 815	106,117		228,658
Agribusiness And Energy Services [Member] | Distiller Grains [Member]
Revenues from contracts accounted for as derivatives under ASC 815	32,706		53,918
Agribusiness And Energy Services [Member] | Corn Oil [Member]
Revenues from contracts accounted for as derivatives under ASC 815	3,488		12,158
Agribusiness And Energy Services [Member] | Grain [Member]
Revenues from contracts accounted for as derivatives under ASC 815	22,843		37,129
Agribusiness And Energy Services [Member] | Other [Member]
Total revenues from contracts with customers	806		1,483
Revenues from contracts accounted for as derivatives under ASC 815	4,114		38,515
Agribusiness And Energy Services [Member] | Intersegment Revenues [Member]
Revenues from contracts accounted for as derivatives under ASC 815	14,128		25,557
Total revenues	14,128	9,781	25,557	19,273
Food And Ingredients [Member]
Total revenues from contracts with customers	222,097		489,555
Revenues from contracts accounted for as derivatives under ASC 815	3,828		14,521
Total revenues	225,925	116,697	504,076	214,757
Food And Ingredients [Member] | Corn Oil [Member]
Revenues from contracts accounted for as derivatives under ASC 815	5,350		7,637
Food And Ingredients [Member] | Cattle And Vinegar [Member]
Total revenues from contracts with customers	222,059		489,475
Revenues from contracts accounted for as derivatives under ASC 815	(1,522)		6,884
Food And Ingredients [Member] | Intersegment Revenues [Member]
Total revenues from contracts with customers	38		80
Total revenues	38	37	80	75
Partnership [Member]
Total revenues from contracts with customers	1,229		2,447
Revenues from contracts accounted for as derivatives under ASC 815	2,517		4,689
Leasing revenues under ASC Topic 840	22,094		44,589
Total revenues	25,840	25,065	51,725	52,294
Partnership [Member] | Service Revenues [Member]
Total revenues from contracts with customers	1,229		2,447
Partnership [Member] | Intersegment Revenues [Member]
Revenues from contracts accounted for as derivatives under ASC 815	2,517		4,689
Total revenues	24,220	23,514	48,477	49,271
Intersegment Eliminations [Member]
Total revenues from contracts with customers	(913)		(1,617)
Revenues from contracts accounted for as derivatives under ASC 815	(19,989)		(34,881)
Leasing revenues under ASC Topic 840	(21,703)		(43,788)
Total revenues	(42,605)	$ (34,881)	(80,286)	$ (71,664)
Intersegment Eliminations [Member] | Intersegment Revenues [Member]
Total revenues from contracts with customers	(913)		(1,617)
Revenues from contracts accounted for as derivatives under ASC 815	$ (19,989)		$ (34,881)

Acquisitions (Narrative) (Detai

Acquisitions (Narrative) (Details) - Asset Purchase Agreement With Cargill Cattle Feeders, LLC [Member] $ in Millions	May 16, 2017USD ($)item	Jun. 30, 2018USD ($)
Business Acquisition [Line Items]
Acquisition date	May 16, 2017
Number of cattle-feeding operations | item	2
Feedlot capacity, head of cattle | item	155,000
Purchase price | $	$ 59.3
Working capital payment | $		$ 1.6

Acquisitions (Schedule Of Ident

Acquisitions (Schedule Of Identifiable Assets Acquired And Liabilities Assumed) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	May 16, 2017
Business Acquisition [Line Items]
Goodwill	$ 182,879	$ 182,879
Asset Purchase Agreement With Cargill Cattle Feeders, LLC [Member]
Business Acquisition [Line Items]
Inventory			$ 22,450
Prepaid expenses and other			52
Property and equipment, net			36,960
Current liabilities			(180)
Total identifiable net assets			$ 59,282

Fair Value Disclosures (Narrati

Fair Value Disclosures (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair value of debt	$ 1,300,000	$ 1,400,000
Accounts receivable, book value	$ 137,068	$ 151,122

Fair Value Disclosures (Schedul

Fair Value Disclosures (Schedule Of Assets And Liabilities Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents	$ 235,133	$ 266,651
Restricted cash	15,863	45,709
Inventories carried at market	58,710	26,834
Unrealized gains on derivatives	18,969	12,045
Other assets	114	115
Total assets measured at fair value	328,789	351,354
Liabilities:
Accounts payable	9,961	37,401
Unrealized losses on derivatives	22,868	12,884
Other	84	92
Total liabilities measured at fair value	32,913	50,377
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Cash and cash equivalents	235,133	266,651
Restricted cash	15,863	45,709
Other assets	114	115
Total assets measured at fair value	251,110	312,475
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Inventories carried at market	58,710	26,834
Unrealized gains on derivatives	18,969	12,045
Total assets measured at fair value	77,679	38,879
Liabilities:
Accounts payable	9,961	37,401
Unrealized losses on derivatives	22,868	12,884
Other	84	92
Total liabilities measured at fair value	$ 32,913	$ 50,377

Segment Information (Narrative)

Segment Information (Narrative) (Details)	6 Months Ended
	Jun. 30, 2018segment
Segment Information [Abstract]
Number of operating segments	4

Segment Information (Summary Of

Segment Information (Summary Of Financial Data) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenues	$ 986,837	$ 886,263	$ 2,032,124	$ 1,773,947
Leasing revenues under ASC Topic 840	391		801
Cost of goods sold	910,625	830,019	1,898,960	1,641,915
Operating income (loss)	11,765	(3,786)	7,840	13,606
EBITDA	41,842	24,073	64,962	67,922
Depreciation and amortization	26,823	26,188	53,297	52,271
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	1,029,442	921,144	2,112,410	1,845,611
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(42,605)	(34,881)	(80,286)	(71,664)
Leasing revenues under ASC Topic 840	(21,703)		(43,788)
Cost of goods sold	(42,602)	(34,746)	(80,303)	(71,417)
Operating income (loss)	144	(80)	212	(155)
EBITDA	144	(80)	212	(155)
Ethanol Production [Member]
Segment Reporting Information [Line Items]
Revenues	593,475	618,846	1,159,191	1,240,221
Cost of goods sold	581,613	612,646	1,146,172	1,211,784
Operating income (loss)	(17,214)	(22,459)	(44,743)	(29,057)
EBITDA	3,362	(873)	(3,733)	12,951
Depreciation and amortization	20,559	20,142	40,995	40,484
Ethanol Production [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	589,256	617,297	1,153,019	1,237,176
Agribusiness And Energy Services [Member]
Segment Reporting Information [Line Items]
Revenues	184,202	160,536	397,418	338,339
Cost of goods sold	165,174	152,110	366,886	318,504
Operating income (loss)	12,166	3,083	19,230	9,452
EBITDA	12,796	3,747	20,498	10,760
Depreciation and amortization	618	659	1,248	1,319
Agribusiness And Energy Services [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	170,074	150,755	371,861	319,066
Food And Ingredients [Member]
Segment Reporting Information [Line Items]
Revenues	225,925	116,697	504,076	214,757
Cost of goods sold	206,440	100,009	466,205	183,044
Operating income (loss)	12,981	10,714	25,566	20,340
EBITDA	19,044	13,955	35,041	26,469
Depreciation and amortization	3,444	3,240	6,848	6,120
Food And Ingredients [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	225,887	116,660	503,996	214,682
Partnership [Member]
Segment Reporting Information [Line Items]
Revenues	25,840	25,065	51,725	52,294
Leasing revenues under ASC Topic 840	22,094		44,589
Operating income (loss)	16,129	14,798	31,489	31,417
EBITDA	17,138	16,066	33,761	33,960
Depreciation and amortization	1,105	1,247	2,286	2,501
Partnership [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	1,620	1,551	3,248	3,023
Corporate Activities [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(12,441)	(9,842)	(23,914)	(18,391)
EBITDA	(10,642)	(8,742)	(20,817)	(16,063)
Depreciation and amortization	1,097	900	1,920	1,847
Intersegment Revenues [Member] | Ethanol Production [Member]
Segment Reporting Information [Line Items]
Revenues	4,219	1,549	6,172	3,045
Intersegment Revenues [Member] | Agribusiness And Energy Services [Member]
Segment Reporting Information [Line Items]
Revenues	14,128	9,781	25,557	19,273
Intersegment Revenues [Member] | Food And Ingredients [Member]
Segment Reporting Information [Line Items]
Revenues	38	37	80	75
Intersegment Revenues [Member] | Partnership [Member]
Segment Reporting Information [Line Items]
Revenues	$ 24,220	$ 23,514	$ 48,477	$ 49,271

Segment Information (Schedule O

Segment Information (Schedule Of Reconciliation Of Net Income (Loss) To EBITDA) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Information [Abstract]
Net income (loss)	$ 3,751	$ (11,796)	$ (15,704)	$ (10,145)
Interest expense	22,021	19,430	44,149	37,926
Income tax benefit	(10,753)	(9,749)	(16,780)	(12,130)
Depreciation and amortization	26,823	26,188	53,297	52,271
EBITDA	$ 41,842	$ 24,073	$ 64,962	$ 67,922

Segment Information (Summary 47

Segment Information (Summary Of Total Assets For Operating Segments) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total assets	$ 2,585,773	$ 2,784,650
Ethanol Production [Member]
Segment Reporting Information [Line Items]
Total assets	1,090,323	1,144,459
Agribusiness And Energy Services [Member]
Segment Reporting Information [Line Items]
Total assets	438,139	554,981
Food And Ingredients [Member]
Segment Reporting Information [Line Items]
Total assets	704,624	725,232
Partnership [Member]
Segment Reporting Information [Line Items]
Total assets	73,255	74,935
Corporate Assets [Member]
Segment Reporting Information [Line Items]
Total assets	290,902	295,217
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	$ (11,470)	$ (10,174)

Inventories (Schedule Of Invent

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventories [Abstract]
Finished goods	$ 143,665	$ 146,269
Commodities held for sale	42,639	65,693
Raw materials	104,119	144,520
Work-in-process	298,738	320,664
Supplies and parts	36,141	34,732
Inventories	$ 625,302	$ 711,878

Goodwill And Intangible Assets

Goodwill And Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Goodwill	$ 182,879,000		$ 182,879,000		$ 182,879,000
Changes in the carrying amount of goodwill			0		0
Trade Names [Member]
Indefinite-Lived Intangible Assets	10,500,000		10,500,000
Acquisition of Fleischmann’s Vinegar Company, Inc. [Member} | Customer Relationships [Member]
Finite-lived Intangible Assets Acquired			70,700,000
Finite-Lived Intangible Assets, Accumulated Amortization	9,300,000		$ 9,300,000
Finite-Lived Intangible Assets, Remaining Amortization Period			13 years 3 months 18 days
Amortization of Intangible Assets	1,400,000	$ 1,400,000	$ 2,700,000	$ 2,800,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	5,300,000		5,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	5,300,000		5,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	5,300,000		5,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	5,300,000		5,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	5,300,000		5,300,000
Ethanol Production [Member]
Goodwill	30,300,000		30,300,000		30,300,000
Food And Ingredients [Member]
Goodwill	142,000,000		142,000,000		142,000,000
Partnership [Member]
Goodwill	$ 10,600,000		$ 10,600,000		$ 10,600,000

Derivative Financial Instrume50

Derivative Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivative Financial Instruments [Abstract]
Accumulated other comprehensive loss	$ (4,208,000)		$ (4,208,000)		$ (13,110,000)
Gain or loss from discontinuing cash flow hedge treatment	0	$ 0	0	$ 0
Energy trading contracts, gain (loss)	$ 4,100,000	$ 6,800,000	$ 10,800,000	$ 15,100,000

Derivative Financial Instrume51

Derivative Financial Instruments (Schedule Of Fair Values Of Derivative Financial Instruments) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 18,969	$ 12,045
Liability Derivatives, Fair Value	22,952	12,976
Net unrealized gains on exchange traded futures and options contracts	11,700	8,500
Net unrealized gains (losses) on cash flow hedges	1,100	300
Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	18,969	12,045
Liability Derivatives, Fair Value		12,884
Accrued and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	22,868
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	$ 84	$ 92

Derivative Financial Instrume52

Derivative Financial Instruments (Schedule Of The Effect Of Derivative Instruments On Consolidated Statements Of Income And Consolidated Statements Of Stockholders' Equity And Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	$ 766	$ 2,177	$ 1,549	$ 7,159
Carrying Amount of the Hedged Assets, Inventories	46,561		46,561
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	3,714		3,714
Nondesignated [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivatives	14,148	(1,931)	8,086	4,957
Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	(313)	2,825	1,448	6,977
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges	(313)	2,216	1,448	6,694
Cost of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	1,079	(648)	101	182
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges	1,736	(768)	1,719	1,173
Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Recognized in Other Comprehensive Income on Derivatives	(5,422)	(5,444)	16,844	(2,834)
Commodity Contracts [Member] | Revenue [Member] | Nondesignated [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivatives	7,027	(5,215)	7,963	(10,263)
Commodity Contracts [Member] | Cost of Goods Sold [Member] | Nondesignated [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivatives	7,121	3,284	123	15,220
Commodity Contracts [Member] | Cash Flow Hedges [Member] | Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	(313)	2,825	1,448	6,977
Commodity Contracts [Member] | Cash Flow Hedges [Member] | Cost of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	1,079	(648)	101	182
Commodity Contracts [Member] | Fair Value Hedging [Member] | Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges		(31)		1,390
Commodity Contracts [Member] | Fair Value Hedging [Member] | Revenue [Member] | Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges		(578)		(1,673)
Commodity Contracts [Member] | Fair Value Hedging [Member] | Cost of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges	1,103	(2,526)	10,496	(4,454)
Commodity Contracts [Member] | Fair Value Hedging [Member] | Cost of Goods Sold [Member] | Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Due to Ineffectiveness of Cash Flow Hedges	$ (446)	$ 2,406	$ (8,878)	$ 5,445

Derivative Financial Instrume53

Derivative Financial Instruments (Schedule Of Volumes Of Open Commodity Derivative Positions) (Details) contract in Thousands	Jun. 30, 2018contract
Corn, Soybeans And Wheat In Bushels [Member] | Exchange Traded [Member] | Long [Member] | Options [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	5,304
Corn, Soybeans And Wheat In Bushels [Member] | Exchange Traded [Member] | Short [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	52,345
Corn In Bushels [Member] | Exchange Traded [Member] | Long [Member] | Cash Flow Hedges [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	500
Corn In Bushels [Member] | Exchange Traded [Member] | Short [Member] | Fair Value Hedging [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	4,750
Ethanol In Gallons [Member] | Exchange Traded [Member] | Long [Member] | Options [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	9,467
Ethanol In Gallons [Member] | Exchange Traded [Member] | Short [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	36,313
Ethanol In Gallons [Member] | Exchange Traded [Member] | Short [Member] | Cash Flow Hedges [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	18,270
Ethanol In Gallons [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	32,986
Ethanol In Gallons [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	289,259
Natural Gas In mmBTU [Member] | Exchange Traded [Member] | Long [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	10,050
Natural Gas In mmBTU [Member] | Exchange Traded [Member] | Short [Member] | Options [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	1,898
Natural Gas In mmBTU [Member] | Exchange Traded [Member] | Short [Member] | Fair Value Hedging [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	9,765
Natural Gas In mmBTU [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	17,086
Natural Gas In mmBTU [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	1,931
Livestock in Pounds [Member] | Exchange Traded [Member] | Short [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	18,390
Livestock in Pounds [Member] | Exchange Traded [Member] | Short [Member] | Options [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	3,732
Livestock in Pounds [Member] | Exchange Traded [Member] | Short [Member] | Cash Flow Hedges [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	292,280
Crude Oil In Barrels [Member] | Exchange Traded [Member] | Long [Member] | Options [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	67
Crude Oil In Barrels [Member] | Exchange Traded [Member] | Short [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	11
Crude Oil In Barrels [Member] | Exchange Traded [Member] | Short [Member] | Fair Value Hedging [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	43
Crude Oil In Barrels [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	44
Crude Oil In Barrels [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	44
Natural Gasoline In Gallons [Member] | Exchange Traded [Member] | Long [Member] | Cash Flow Hedges [Member] | Futures [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	2,814
Corn And Soybeans In Bushels [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	50,708
Corn And Soybeans In Bushels [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	555
Distillers Grains In Tons [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	368
Distillers Grains In Tons [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	638
Corn Oil in Pounds [Member] | Non-Exchange Traded [Member] | Long [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	23,463
Corn Oil in Pounds [Member] | Non-Exchange Traded [Member] | Short [Member] | Forwards [Member]
Derivative [Line Items]
Volumes of open commodity derivatives	122,826

Debt (Narrative - Corporate Act

Debt (Narrative - Corporate Activities) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)$ / sharespropertyshares	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)$ / sharespropertyshares	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)shares	Aug. 29, 2017USD ($)
Debt Instrument [Line Items]
Cash payment for conversion of 3.25% convertible notes due 2018				$ 8,523,000
Interest expense	$ 22,021,000	$ 19,430,000	$ 44,149,000	37,926,000
Restricted cash	15,863,000	$ 59,334,000	15,863,000	$ 59,334,000	$ 45,709,000
$170.0 Million Convertible Notes [Member] | Corporate Activities [Member] | Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 170,000,000		$ 170,000,000
Interest rate, stated percentage	4.125%		4.125%
Common stock, dividends per share, cash paid per share | $ / shares			$ 0.12
Common stock for conversion, shares | shares			35.7143
Debt conversion amount			$ 1,000
Debt conversion price | $ / shares	$ 28		$ 28
Conversion price percentage			140.00%
Principal amount of notes, percentage			100.00%
$120.0 Million Convertible Notes [Member] | Corporate Activities [Member] | Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 120,000,000		$ 120,000,000
Interest rate, stated percentage	3.25%		3.25%
Common stock, dividends per share, cash paid per share | $ / shares			$ 0.04
Common stock for conversion, shares | shares			50.6481
Debt conversion amount			$ 1,000
Debt conversion price | $ / shares	$ 19.74		$ 19.74
Conversion price percentage			140.00%
Principal amount of notes, percentage			100.00%
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Prepayment fees			1.00%
Prepayment fee required in paid within term			18 months
Debt Instrument, Periodic Payment, Principal			$ 1,250,000
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Term Loan [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			5.50%
Interest rate, basis for effective rate			LIBOR plus a margin of 5.50%.
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Term Loan [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			4.50%
Interest rate, basis for effective rate			base rate plus a margin of 4.50%
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Term Loan [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest coverage ratio	1.25		1.25
Special annual payments from available free cash flow, percentage			50.00%
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Term Loan [Member] | Maximum [Member]
Debt Instrument [Line Items]
Term debt to total term capitalization			55.00%
Special annual payments from available free cash flow, percentage			75.00%
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Green Plains Processing & Fleischmanns Vinegar Company [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
Long-term Debt, Gross						$ 405,000,000
$500.0 Million Term Loan [Member] | Corporate Activities [Member] | Green Plains Processing & Fleischmanns Vinegar Company [Member] | Term Loan [Member] | Collateral Pledged [Member]
Debt Instrument [Line Items]
Number of ethanol plants | property	17		17
Convertible Senior Notes 3.25% [Member] | Corporate Activities [Member] | Convertible Notes [Member]
Debt Instrument [Line Items]
Outstanding note payable	$ 63,700,000		$ 63,700,000
Common stock for conversion, shares | shares	50				2,783,725
Debt conversion amount	$ 1,000
Debt instrument, exchange amount					$ 56,300,000

Debt (Narrative - Agribusiness

Debt (Narrative - Agribusiness And Energy Services Segment) (Details)	6 Months Ended
	Jun. 30, 2018USD ($)property	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	$ 457,472,000	$ 526,180,000
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jul. 26, 2019
Additional amounts available under facility, accordion feature	$ 75,000,000
Line of credit, maximum borrowing capacity	125,000,000
Minimum working capital required for compliance	22,000,000
Minimum net worth required for compliance	27,000,000
Annual capital expenditures, maximum	8,000,000
Line of credit, initial borrowings	$ 0
Allowable dividends as percentage of net profit before taxes	50.00%
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate	LIBOR plus 3.00%
Interest rate, basis spread on variable rate, percentage	3.00%
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate	base rate plus 2.00%
Interest rate, basis spread on variable rate, percentage	2.00%
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio	1.25
Unused capacity fee, percentage	0.375%
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 250,000,000
Annual leverage ratio	6
Unused capacity fee, percentage	0.50%
Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Seasonal Borrowings [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 50,000,000
Agribusiness And Energy Services [Member] | Green Plains Trade [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Additional amounts available under facility, accordion feature	70,000,000
Line of credit, maximum borrowing capacity	300,000,000
Annual capital expenditures, maximum	$ 1,500,000
Fixed charge coverage ratio	1.15
Allowable dividends as percentage of net profit before taxes	50.00%
Undrawn availability of revolving credit facility on a pro forma basis	$ 10,000,000
Unused capacity fee, percentage	0.375%
Agribusiness And Energy Services [Member] | Green Plains Trade [Member] | Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage	2.25%
Agribusiness And Energy Services [Member] | Green Plains Trade [Member] | Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage	3.25%
Agribusiness And Energy Services [Member] | Green Plains Trade [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 285,000,000
Agribusiness And Energy Services [Member] | Green Plains Trade [Member] | First-in-last-out (FILO) Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 15,000,000
Collateral Pledged [Member] | Agribusiness And Energy Services [Member] | Green Plains Grain [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Number of ethanol plants | property	17
$20.0 Million Hedge Line [Member] | Green Plains Commodity Management [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 20,000,000	$ 20,000,000
Short-term notes payable and other borrowings	11,355,000
$20.0 Million Hedge Line [Member] | Agribusiness And Energy Services [Member] | Green Plains Commodity Management [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 20,000,000
$20.0 Million Hedge Line [Member] | Agribusiness And Energy Services [Member] | Green Plains Commodity Management [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate	LIBOR plus 1.75%
Interest rate, basis spread on variable rate, percentage	1.75%

Debt (Narrative - Food And Ingr

Debt (Narrative - Food And Ingredients Segment, Partnership Segment, Capitalized Interest, And Restricted Net Assets) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)property	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)property	Jun. 30, 2017USD ($)	Feb. 19, 2018USD ($)
Debt Instrument [Line Items]
Interest expense	$ 22,021,000	$ 19,430,000	$ 44,149,000	$ 37,926,000
Restricted assets	166,000,000		166,000,000
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	425,000,000		425,000,000
Additional amounts available under facility, accordion feature			$ 75,000,000
Minimum working capital required for compliance, percentage			15.00%
Minimum net worth required for compliance, percentage			20.00%
Allowable dividends as percentage of net profit before taxes			50.00%
Annual leverage ratio			3.50
Annual capital expenditures, maximum			$ 10,000,000
Annual capital expenditures, maximum, funded by parent			$ 10,000,000
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate			LIBOR plus 2.00% to 3.00%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate			base rate plus 1.00% to 2.00%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Unused capacity fee, percentage			0.20%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			2.00%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			1.00%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unused capacity fee, percentage			0.30%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			3.00%
Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis spread on variable rate, percentage			2.00%
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	235,000,000		$ 235,000,000		$ 195,000,000
Additional amounts available under facility, accordion feature			20,000,000
Revolving Credit Facility, Increase	$ 40,000,000		$ 40,000,000
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate			LIBOR plus 2.25% to 3.00%
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate, basis for effective rate			erage ratio at a base rate plus 1.25% to 2.00%
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Unused capacity fee, percentage			0.35%
Interest coverage ratio	2.75		2.75
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, basis points			2.25
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, basis points			1.25
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unused capacity fee, percentage			0.50%
Net leverage ratio	3.50		3.50
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, basis points			3
Partnership [Member] | Green Plains Operating Company LLC [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, basis points			2
Collateral Pledged [Member] | Food And Food Ingredients [Member] | Green Plains Cattle [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Number of ethanol plants | property	17		17

Debt (Schedule Of The Component

Debt (Schedule Of The Components Of Long-Term Debt) (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total face value of long-term debt	$ 854,886,000	$ 851,575,000
Unamortized debt issuance costs	(17,023,000)	(16,256,000)
Less: current portion of long-term debt	(69,752,000)	(67,923,000)
Total long-term debt	768,111,000	767,396,000
Term Loan [Member] | $500.0 Million Term Loan [Member] | Corporate [Member]
Debt Instrument [Line Items]
Total face value of long-term debt	496,250,000	498,750,000
Debt instrument, face amount	500,000,000	500,000,000
Convertible Notes [Member] | $120.0 Million Convertible Notes [Member] | Corporate [Member]
Debt Instrument [Line Items]
Total face value of long-term debt	62,953,000	61,442,000
Debt instrument, face amount	120,000,000	120,000,000
Convertible Notes [Member] | $170.0 Million Convertible Notes [Member] | Corporate [Member]
Debt Instrument [Line Items]
Total face value of long-term debt	139,654,000	136,739,000
Debt instrument, face amount	170,000,000	170,000,000
Other Debt Obligations [Member]
Debt Instrument [Line Items]
Total face value of long-term debt	27,129,000	27,744,000
Partnership [Member] | Revolving Credit Facility [Member] | $235.0 Million Revoling Credit Facility [Member]
Debt Instrument [Line Items]
Total face value of long-term debt	128,900,000	126,900,000
Line of credit, maximum borrowing capacity	$ 235,000,000	$ 235,000,000

Debt (Schedule Of Short-term No

Debt (Schedule Of Short-term Notes Payable And Other Borrowings) (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	$ 457,472,000	$ 526,180,000
Green Plains Cattle [Member] | Revolving Credit Facility [Member] | $425.0 Million Revolver [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	243,147,000	270,860,000
Debt instrument, face amount	425,000,000	425,000,000
Green Plains Grain [Member] | Revolving Credit Facility [Member] | $125.0 Million Revolver [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	71,800,000	75,000,000
Debt instrument, face amount	125,000,000	125,000,000
Green Plains Trade [Member] | Revolving Credit Facility [Member] | $300.0 Million Revolver [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	131,170,000	180,320,000
Debt instrument, face amount	300,000,000	300,000,000
Green Plains Commodity Management [Member] | $20.0 Million Hedge Line [Member]
Debt Instrument [Line Items]
Short-term notes payable and other borrowings	11,355,000
Debt instrument, face amount	$ 20,000,000	$ 20,000,000

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 19, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units authorized	4,110,000		4,110,000
Compensation costs expensed	$ 3	$ 3	$ 5.4	$ 5.5
Unrecognized compensation costs	$ 17		$ 17
Compensation expected to be recognized, weighted-average period in years			2 years 1 month 6 days
Potential tax benefit, percentage			24.40%
Green Plains Partners LP 2015 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units authorized	2,500,000		2,500,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units authorized	153,030		153,030
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage			100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Achievement of Maximum Goals			229,545
Share-based Compensation Arrangement by Share-based Payment Award, Achievement of Maximum Goals Percentage			150.00%
Monte Carlo valuation assumed pecercentage of the performance shares awarded at end of performance period based upon the estimated company’s total shareholder return relative to peer performance			97.39%
Share Price					$ 18.15
Unrecognized compensation costs	$ 2.5		$ 2.5
Performance Shares [Member] | Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%
Performance Shares [Member] | Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Outstanding, Shares	143,750
Outstanding, Weighted Average Exercise Price	$ 12.44
Outstanding, Weighted Average Remaining Contractual Term	1 year 6 months	1 year 9 months 18 days
Outstanding, Aggregate Intrinsic Value	$ 635
Exercised, Shares	(15,000)
Exercised, Weighted Average Exercise price	$ 10
Exercised, Aggregate Intrinsic Value	$ 120
Outstanding, Shares	128,750	143,750
Outstanding, Weighted Average Exercise Price	$ 12.72	$ 12.44
Outstanding, Weighted Average Remaining Contractual Term	1 year 6 months	1 year 9 months 18 days
Outstanding, Aggregate Intrinsic Value	$ 718	$ 635
Exercisable, Shares	128,750
Exercisable, Weighted Average Exercise Price	$ 12.72
Exercisable, Weighted Average Remaining Contractual	1 year 6 months
Exercisable, Aggregate Intrinsic Value	$ 718

Stock-Based Compensation (Sch61

Stock-Based Compensation (Schedule Of Non-Vested Stock Award And DSU Activity) (Details) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Non-vested, shares or units | shares	1,068,947
Non-vested, Weighted-Average Grant-Date Fair Value | $ / shares	$ 20.41
Granted, shares or units | shares	660,509
Granted, Weighted-Average Grant-Date Fair Value | $ / shares	$ 18.20
Forfeited, shares or units | shares	(7,741)
Forfeited, Weighted-Average Grant-Date Fair Value | $ / shares	$ 20.17
Vested, shares or units | shares	(501,621)
Vested, Weighted-Average Grant-Date Fair Value | $ / shares	$ 20.62
Non-vested, shares or units | shares	1,220,094
Non-vested, Weighted-Average Grant-Date Fair Value | $ / shares	$ 19.12
Non-vested, Weighted-Average Remaining Vesting Term (in years)	2 years 1 month 6 days

Stock-Based Compensation (The W

Stock-Based Compensation (The Weighted Average Assumptions Used by the Company in Applying the Monte Carlo Valuation Model for Performance Share Grants) (Details) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2018
Risk-free interest rate	2.44%
Dividend yield	2.64%
Expected volatility	45.11%

Stock-Based Compensation (Sch63

Stock-Based Compensation (Schedule Of Non-Vested Unit-Based Award Activity) (Details) - Green Plains Partners LP 2015 Long-Term Incentive Plan [Member]	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Non-vested, shares or units | shares	11,549
Non-vested, Weighted-Average Grant-Date Fair Value | $ / shares	$ 19.06
Vested, shares or units | shares	(11,549)
Vested, Weighted-Average Grant-Date Fair Value | $ / shares	$ 19.06
Non-vested, Weighted-Average Remaining Vesting Term (in years)	0 years

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stock Compensation Plan And Convertible Debt Member
Stock-based compensation awards excluded from computations of diluted EPS	10.2	10.7	10.1	11.3

Earnings Per Share (Schedule Of

Earnings Per Share (Schedule Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income (loss) attributable to Green Plains	$ (994)	$ (16,366)	$ (25,111)	$ (19,963)
Weighted average shares outstanding - basic	40,194	40,220	40,168	39,326
EPS - basic	$ (0.02)	$ (0.41)	$ (0.63)	$ (0.51)
Weighted average shares outstanding - diluted	40,194	40,220	40,168	39,326
EPS - diluted	$ (0.02)	$ (0.41)	$ (0.63)	$ (0.51)

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule Of Stockholders' Equity) (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stockholders' Equity [Line Items]
Beginning balance	$ 1,059,136		$ 1,059,136		$ 1,059,136
Reclassification from accumulated other comprehensive income to retained earnings			$ 2,800
Net income (loss)		$ 3,751		$ (11,796)	(15,704)	$ (10,145)
Cash dividends and distributions declared					(20,580)
Other comprehensive loss before reclassifications					12,873
Amounts reclassified from accumulated other comprehensive income (loss)					(1,184)
Total other comprehensive income (loss), net of tax		(4,858)		$ (4,771)	11,689	$ (6,263)
Exchange of 3.25% convertible notes due 2018					1
Stock-based compensation					$ 2,421
Stock options exercised, Shares					15,000
Stock options exercised					$ 150
Ending balance	$ 1,059,136	$ 1,037,113			$ 1,037,113
Common Units [Member]
Stockholders' Equity [Line Items]
Beginning balance, Shares	46,410,000		46,410,000		46,410,000
Beginning balance	$ 46		$ 46		$ 46
Stock-based compensation, Shares					336,000
Stock-based compensation					$ 1
Stock options exercised, Shares					15,000
Ending balance, Shares	46,410,000	46,761,000			46,761,000
Ending balance	$ 46	$ 47			$ 47
Additional Paid-In Capital [Member]
Stockholders' Equity [Line Items]
Beginning balance	685,019		685,019		685,019
Stock-based compensation					2,300
Stock options exercised					150
Ending balance	685,019	687,469			687,469
Retained Earnings [Member]
Stockholders' Equity [Line Items]
Beginning balance	325,411		325,411		325,411
Reclassification from accumulated other comprehensive income to retained earnings	2,787
Net income (loss)					(25,111)
Cash dividends and distributions declared					(9,682)
Ending balance	328,198	293,405			293,405
Accum. Other Comp. Income [Member]
Stockholders' Equity [Line Items]
Beginning balance	(13,110)		$ (13,110)		(13,110)
Reclassification from accumulated other comprehensive income to retained earnings	(2,787)
Other comprehensive loss before reclassifications					12,873
Amounts reclassified from accumulated other comprehensive income (loss)					(1,184)
Total other comprehensive income (loss), net of tax					11,689
Ending balance	$ (15,897)	$ (4,208)			$ (4,208)
Treasury Stock [Member]
Stockholders' Equity [Line Items]
Beginning balance, Shares	5,326,000		5,326,000		5,326,000
Beginning balance	$ (55,184)		$ (55,184)		$ (55,184)
Exchange of 3.25% convertible notes due 2018					$ 1
Ending balance, Shares	5,326,000	5,326,000			5,326,000
Ending balance	$ (55,184)	$ (55,183)			$ (55,183)
Total Green Plains Stockholders' Equity [Member]
Stockholders' Equity [Line Items]
Beginning balance	942,182		942,182		942,182
Net income (loss)					(25,111)
Cash dividends and distributions declared					(9,682)
Other comprehensive loss before reclassifications					12,873
Amounts reclassified from accumulated other comprehensive income (loss)					(1,184)
Total other comprehensive income (loss), net of tax					11,689
Exchange of 3.25% convertible notes due 2018					1
Stock-based compensation					2,301
Stock options exercised					150
Ending balance	942,182	921,530			921,530
Noncontrolling Interests [Member]
Stockholders' Equity [Line Items]
Beginning balance	116,954		$ 116,954		116,954
Net income (loss)					9,407
Cash dividends and distributions declared					(10,898)
Stock-based compensation					120
Ending balance	$ 116,954	$ 115,583			$ 115,583

Stockholders Equity (Reclassifi

Stockholders Equity (Reclassification From Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	$ 986,837	$ 886,263	$ 2,032,124	$ 1,773,947
Loss before income taxes	(7,002)	(21,545)	(32,484)	(22,275)
Income Tax Expense (Benefit)	(10,753)	(9,749)	(16,780)	(12,130)
Net income (loss)	3,751	(11,796)	(15,704)	(10,145)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Loss before income taxes	766	2,177	1,549	7,159
Income Tax Expense (Benefit)	185	824	365	2,672
Net income (loss)	581	1,353	1,184	4,487
Ethanol Commodity Derivatives [Member] | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	(313)	2,825	1,448	6,977
Corn Commodity Derivatives [Member] | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Goods and Services Sold	$ 1,079	$ (648)	$ 101	$ 182

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Income tax expense (benefit)	$ (10,753)	$ (9,749)	$ (16,780)	$ (12,130)
Tax benefit for federal and state R&D credits	8,300
Unrecognized tax benefits	$ 47,900		$ 47,900		$ 26,000

Commitments And Contingencies69

Commitments And Contingencies (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)property	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)property	Jun. 30, 2017USD ($)
Trading Activity, Gains and Losses, Net [Line Items]
Lease expenses	$ 10	$ 11.9	$ 20.7	$ 22.2
Contracted future purchases	$ 481.3		$ 481.3
Acquisition Of Fairmont, Minnesota and Wood River, Nebraska Ethanol Plants [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Number of ethanol plants | property	2		2
Previously accrued contingent liabilities that no longer represent probable losses	$ 6.3		$ 6.3
Gain contingency	$ 5.5		$ 5.5

Commitments And Contingencies70

Commitments And Contingencies (Schedule of Aggregate Minimum Lease Payments) (Details) $ in Thousands	Jun. 30, 2018USD ($)
Commitments And Contingencies [Abstract]
2,018	$ 17,128
2,019	24,298
2,020	17,939
2,021	9,985
2,022	6,240
Thereafter	24,502
Total	$ 100,092

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)item	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2014USD ($)
Related Party Transaction [Line Items]
Outstanding accounts payable	$ 121,573,000		$ 121,573,000		$ 205,479,000
Board of Directors Chairman [Member] | Aircraft Lease [Member]
Related Party Transaction [Line Items]
Number of related party transaction agreements | item			2
Number of leased aircrafts | item			2
Aircraft lease amount payable, per month			$ 9,766
Aircraft hours available each year under lease			125 hours
Cash payments	30,000	$ 41,000	$ 87,000	$ 102,000
Outstanding accounts payable	0		0		2,000
Director [Member] | Amur Equipment Finance [Member]
Related Party Transaction [Line Items]
New equipment financing agreement						$ 1,400,000
Due to related parties, current	500,000		500,000		$ 600,000
Principal payments (including interest)	$ 69,000	$ 69,000	$ 138,000	$ 138,000
Weighted average interest rate	6.80%		6.80%

Subsequent Events (Details)

Subsequent Events (Details) item in Thousands	Jul. 27, 2018USD ($)propertyitem	Jul. 31, 2018USD ($)	Jul. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Feeding Operations From Bartlett Cattle Company [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Number Of Cattle-feeding Operations | property	2
Purchase price	$ 16,200,000
Working Capital	$ 108,900,000
Number Of Feed Yards | property	2
Feedlot Capacity, Head Of Cattle | item	97
Revolving Credit Facility [Member] | $425.0 Million Revolver [Member] | Green Plains Cattle [Member]
Subsequent Event [Line Items]
Debt instrument, face amount				$ 425,000,000	$ 425,000,000
Revolving Credit Facility [Member] | $425.0 Million Revolver [Member] | Green Plains Cattle [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Debt instrument, face amount			$ 425,000,000
Revolving Credit Facility [Member] | $500.0 Million Revolver [Member] | Green Plains Cattle [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Debt instrument, face amount		$ 500,000,000
Line of Credit Facility, Additional Amount Available Without Consent of Lenders		$ 100,000,000