Green Plains Partners (GPP) 10-Q 4 Nov 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Nov. 01, 2021
Document and Entity Information [Abstract]
Document type	10-Q
Document period end date	Sep. 30, 2021
Document fiscal period focus	Q3
Document fiscal year focus	2021
Document Quarterly Report	true
Document Transition Report	false
Entity registrant name	Green Plains PARTNERS LP
Entity Incorporation, State or Country Code	DE
Entity File Number	001-37469
Entity Address, Address Line One	1811 Aksarben Drive
Entity Address, City or Town	Omaha
Entity Address, State or Province	NE
Entity Address, Postal Zip Code	68106
City Area Code	402
Local Phone Number	884-8700
Title of 12(b) Security	Common Units, Representing Limited Partner Interests
Trading symbol	GPP
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Tax Identification Number	47-3822258
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity common stock, shares outstanding		23,227,653
Entity central index key	0001635650
Current fiscal year end date	--12-31
Amendment flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 14,201	$ 2,478
Accounts receivable	333	605
Accounts receivable from affiliates	13,222	14,139
Prepaid expenses and other	982	772
Total current assets	28,738	17,994
Property and equipment, net of accumulated depreciation and amortization of $34,342 and $34,301, respectively	29,601	32,119
Operating lease right-of-use assets	41,890	40,604
Goodwill	10,598	10,598
Investment in equity method investee	4,511	3,994
Other assets		11
Total assets	115,338	105,320
Current liabilities
Accounts payable	4,505	3,792
Accounts payable to affiliates	142	607
Accrued and other liabilities	1,762	4,527
Asset retirement obligations	902	911
Operating lease current liabilities	12,133	11,506
Current maturities of long-term debt		97,739
Total current liabilities	19,444	119,082
Long-term debt	59,579
Asset retirement obligations	2,879	2,865
Operating lease long-term liabilities	30,794	29,835
Total liabilities	112,696	151,782
Commitments and contingencies (Note 9)
Partners' equity (deficit)
Total partners' equity (deficit)	2,642	(46,462)
Total liabilities and partners' equity (deficit)	115,338	105,320
General Partner [Member]
Partners' equity (deficit)
Total partners' equity (deficit)	65	(917)
Common Units - Public [Member] | Limited Partners [Member]
Partners' equity (deficit)
Total partners' equity (deficit)	135,803	124,823
Common Units - Green Plains [Member] | Limited Partners [Member]
Partners' equity (deficit)
Total partners' equity (deficit)	$ (133,226)	$ (170,368)

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property and equipment, accumulated depreciation and amortization	$ 34,342	$ 34,301
Common Units - Public [Member] | Limited Partners [Member]
Units issued	11,641,105	11,641,105
Units outstanding	11,621,623	11,621,623
Common Units - Green Plains [Member] | Limited Partners [Member]
Units issued	11,586,548	11,586,548
Units outstanding	11,586,548	11,586,548

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Total revenues	$ 19,251	$ 21,382	$ 59,358	$ 62,034
Operating expenses
Operations and maintenance (excluding depreciation and amortization reflected below)	5,161	6,647	17,153	19,410
General and administrative	892	1,116	3,152	3,038
Depreciation and amortization	1,089	940	2,771	2,867
Total operating expenses	7,142	8,703	23,076	25,315
Operating income	12,109	12,679	36,282	36,719
Interest expense	(2,781)	(2,498)	(6,120)	(6,182)
Income before income taxes and income from equity method investee	9,328	10,181	30,162	30,537
Income tax expense	(77)	(30)	(229)	(166)
Income from equity method investee	174	155	517	488
Net income	9,425	10,306	30,450	30,859
Affiliate [Member]
Revenues
Total revenues	18,221	20,347	56,061	58,327
Non-affiliate [Member]
Revenues
Total revenues	1,030	1,035	3,297	3,707
General Partner [Member]
Operating expenses
Net income	188	206	609	617
Limited Partners [Member] | Common Units [Member]
Operating expenses
Net income	$ 9,237	$ 10,100	$ 29,841	$ 30,242
Earnings per limited partner unit (basic and diluted):
Common units	$ 0.40	$ 0.44	$ 1.29	$ 1.31
Weighted average limited partner units outstanding (basic and diluted):
Common units	23,208	23,161	23,177	23,145

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 30,450	$ 30,859
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,771	2,867
Accretion	(206)
Accretion		195
Amortization of debt issuance costs	1,267	1,125
Loss on extinguishment of debt	1,009
Unit-based compensation	219	239
Income from equity method investee	(517)	(488)
Distribution from equity method investee		1,000
Other		75
Changes in operating assets and liabilities before effects of asset dispositions:
Accounts receivable	387	829
Accounts receivable from affiliates	917	(950)
Prepaid expenses and other assets	(210)	(581)
Accounts payable and accrued liabilities	(2,123)	(1,435)
Accounts payable to affiliates	(572)	(160)
Operating lease liabilities and right-of-use assets	273	689
Other	11	13
Net cash provided by operating activities	33,676	34,277
Cash flows from investing activities:
Purchases of property and equipment	(494)	(117)
Disposition of assets	27,500
Net cash provided by (used in) investing activities	27,006	(117)
Cash flows from financing activities:
Payments of distributions	(8,528)	(16,958)
Proceeds from revolving credit facility	2,700	43,100
Payments on revolving credit facility	(2,700)	(47,500)
Proceeds from issuance of long-term debt	10,000	3,000
Principal payments on long-term debt	(50,000)	(12,500)
Payments of loan fees	(436)	(3,495)
Other	5	7
Net cash used in financing activities	(48,959)	(34,346)
Net change in cash and cash equivalents	11,723	(186)
Cash and cash equivalents, beginning of period	2,478	261
Cash and cash equivalents, end of period	14,201	75
Supplemental disclosures of cash flow
Cash paid for income taxes	462	96
Cash paid for interest	3,922	$ 4,780
Non-cash investing activities:
Assets disposed of in sale	$ 310

Basis of Presentation, Descript

Basis of Presentation, Description of Business and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
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	1. BASIS OF PRESENTATION, DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization References to “the partnership” in the consolidated financial statements and notes to the consolidated financial statements refer to Green Plains Partners LP and its subsidiaries. Green Plains Holdings LLC, a wholly owned subsidiary of Green Plains Inc., serves as the general partner of the partnership. References to (i) “the general partner” and “Green Plains Holdings” refer to Green Plains Holdings LLC; (ii) “the parent,” “the sponsor” and “Green Plains” refer to Green Plains Inc.; and (iii) “Green Plains Trade” refers to Green Plains Trade Group LLC, a wholly owned subsidiary of Green Plains. Consolidated Financial Statements The consolidated financial statements include the accounts of the partnership and its controlled subsidiaries. All significant intercompany balances and transactions are eliminated on a consolidated basis for reporting purposes. Results for the interim periods presented are not necessarily indicative of the expected results for the entire year. The accompanying unaudited consolidated financial statements are prepared in accordance with GAAP for interim financial information and instructions to Form 10-Q and Article 10 of Regulation S-X. Because they do not include all of the information and footnotes required by GAAP, the consolidated financial statements should be read in conjunction with the partnership’s 2020 annual report on Form 10-K for the year ended December 31, 2020, as filed with the SEC on February 16, 2021. The partnership accounts for its interest in joint ventures using the equity method of accounting, with its investment recorded at the acquisition cost plus the partnership’s share of equity in undistributed earnings and reduced by the partnership’s share of equity in undistributed losses and distributions received. Use of Estimates in the Preparation of Consolidated Financial Statements Preparation of the consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and revenues and expenses during the reporting period. The partnership bases its estimates on historical experience and assumptions it believes are proper and reasonable under the circumstances. The partnership regularly evaluates the appropriateness of these estimates and assumptions. Actual results could differ from those estimates. Key accounting policies, including, but not limited to, those related to revenue recognition, leases, depreciation of property and equipment, asset retirement obligations, and impairment of long-lived assets and goodwill are impacted significantly by judgments, assumptions and estimates used to prepare the consolidated financial statements. Description of Business The partnership provides fuel storage and transportation services by owning, operating, developing and acquiring ethanol and fuel storage terminals, transportation assets and other related assets and businesses. The partnership is its parent’s primary downstream logistics provider to support the parent’s approximately 0.96 bgy ethanol marketing and distribution business since the partnership’s assets are the principal method of storing and delivering the ethanol its parent produces. The ethanol produced by the parent is predominantly fuel grade, made principally from starch extracted from corn, and is primarily used for blending with gasoline. Ethanol currently comprises approximately 10 % of the U.S. gasoline market and is an economical source of octane and oxygenates for blending into the fuel supply. The partnership does not take ownership of, or receive any payments based on the value of the ethanol, other fuels or products it handles. As a result, the partnership does not have any direct exposure to fluctuations in commodity prices. Revenue Recognition The partnership recognizes revenue when obligations under the terms of a contract with a customer are satisfied. Generally, this occurs with the completion of services or the transfer of control of products to the customer or another specified third party. For contracts with customers in which a take-or-pay commitment exists, any minimum volume deficiency charges are recognized as revenue in the period incurred and are not allowed to be credited towards excess volumes in future periods. The partnership generates a substantial portion of its revenues under fee-based commercial agreements with Green Plains Trade. Operating lease revenue related to minimum volume commitments is recognized on a straight-line basis over the term of the lease. Under the terms of the storage and throughput agreement with Green Plains Trade, to the extent shortfalls associated with minimum volume commitments in the previous four quarters continue to exist, volumes in excess of the minimum volume commitment are applied to those shortfalls. Remaining excess volumes generating operating lease revenue are recognized as incurred. Please refer to Note 2 - Revenue to the consolidated financial statements for further details. Operations and Maintenance Expenses The partnership’s operations and maintenance expenses consist primarily of lease expenses related to the transportation assets, labor expenses, outside contractor expenses, insurance premiums, repairs and maintenance expenses, and utility costs. These expenses also include fees for certain management, maintenance and operational services to support the storage and terminal facilities, trucks, and leased railcar fleet allocated by Green Plains under the operational services and secondment agreement. Concentrations of Credit Risk In the normal course of business, the partnership is exposed to credit risk resulting from the possibility a loss may occur due to failure of another party to perform according to the terms of their contract. The partnership provides fuel storage and transportation services for various parties with a significant portion of its revenues earned from Green Plains Trade. The partnership continually monitors its credit risk exposure and concentrations. Please refer to Note 2 – Revenue and Note 10 – Related Party Transactions to the consolidated financial statements for additional information . Impairment of Long-Lived Assets and Goodwill The partnership reviews its long-lived assets, currently consisting primarily of property and equipment and operating lease right-of-use assets, for impairment when events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable. Recoverability of assets to be held and used is measured by comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. No impairment charges were recorded for the periods reported.   The partnership’s goodwill currently is comprised of amounts recognized by the MLP predecessor related to terminal services assets. The partnership reviews goodwill at the reporting unit level for impairment at least annually, as of October 1, or more frequently when events or changes in circumstances indicate that impairment may have occurred. Leases The partnership leases certain facilities, parcels of land, and railcars. These leases are accounted for as operating leases, with lease expense recognized on a straight-line basis over the lease term. The term of the lease may include options to extend or terminate the lease when it is reasonably certain that such options will be exercised. For leases with initial terms greater than 12 months, the partnership records operating lease right-of-use assets and corresponding operating lease liabilities. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet. The partnership had no short-term lease expense for the three and nine months ended September 30, 2021 or 2020. Operating lease right-of-use assets represent the right to control an underlying asset for the lease term and operating lease liabilities represent the obligation to make lease payments arising from the lease. These assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As the partnership’s leases do not provide an implicit rate, the incremental borrowing rate is used based on information available at the commencement date to determine the present value of future payments. The partnership utilizes a portfolio approach for lease classification, which allows for an entity to group together leases with similar characteristics, provided that its application does not create a material difference when compared to accounting for the leases at a contract level. For the partnership’s railcar leases, the partnership combines the railcars within each contract rider and accounts for each contract rider as an individual lease. From a lessee perspective, the partnership combines both the lease and non-lease components and accounts for them as one lease. Certain of the partnership’s railcar agreements provide for maintenance costs to be the responsibility of the partnership as incurred or charged by the lessor. This maintenance cost is a non-lease component that the partnership combines with the monthly rental payment and accounts for the total cost as operating lease expense. In addition, the partnership has a land lease that contains a non-lease component for the handling and unloading services the landlord provides. The partnership combines the cost of services with the land lease cost and accounts for the total as operating lease expense. The partnership records operating lease revenue as part of its operating lease agreements for storage and throughput services, rail transportation services, and certain terminal services. In addition, the partnership may sublease certain of its railcars to third parties on a short-term basis. These subleases are classified as operating leases, with the associated sublease revenue recognized on a straight-line basis over the lease term. From a lessor perspective, the partnership classifies certain costs as lease costs for accounting purposes, which may differ from a tax or legal perspective. The partnership combines both the lease and non-lease components and accounts for them as one lease. The storage and throughput agreement consists of costs paid by Green Plains Trade for the rental of the terminal facilities, which for accounting purposes are treated as lease costs, as well as other costs for the throughput services provided by the partnership, which are treated as non-lease costs. For this agreement, the partnership combines the facility rental revenue and the service revenue and accounts for the total as leasing revenue. Similarly, the railcar transportation services agreement consists of costs paid by Green Plains Trade for the use of the partnership’s railcar assets, which are treated as lease costs for accounting purposes, as well as costs for logistical operations management and other services, which are treated as non-lease costs. For this agreement, the partnership combines the railcar rental revenue and the service revenue and accounts for the total as leasing revenue. Please refer to Note 9 – Commitments and Contingencies to the consolidated financial statements for further details on operating lease expense and revenue. Please refer to Note 2 - Revenue to the consolidated financial statements for further details on the operating lease agreements in which the partnership is a lessor. Asset Retirement Obligations The partnership records an ARO for the fair value of the estimated costs to retire a tangible long-lived asset in the period incurred if it can be reasonably estimated, which is subsequently adjusted for accretion expense. Corresponding asset retirement costs are capitalized as a long-lived asset and depreciated on a straight-line basis over the asset’s remaining useful life. The expected present value technique used to calculate the fair value of the AROs includes assumptions about costs, settlement dates, interest accretion, and inflation. Changes in assumptions, such as the amount or timing of estimated cash flows, could increase or decrease the AROs. The partnership’s AROs are based on legal obligations to perform remedial activity related to land, machinery and equipment when certain operating leases expire. Segment Reporting The partnership accounts for segment reporting in accordance with ASC 280, Segment Reporting , which establishes standards for entities reporting information about the operating segments and geographic areas in which they operate. Management evaluated how its chief operating decision maker has organized the partnership for purposes of making operating decisions and assessing performance, and concluded it has one reportable segment. Recent Accounting Pronouncements In March 2020, the FASB issued amended guidance in ASC 848, Reference Rate Reform Facilitation of the Effects of Reference Rate Reform on Financial Reporting, and a subsequent update in January 2021, which provides optional expedients and exceptions to U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burden related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates. The expedients and exceptions provided by the amended guidance do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The guidance is effective upon issuance and to be applied prospectively from any date beginning March 12, 2020, through December 31, 2022. The amended guidance is not expected to have a material impact on the partnership’s consolidated financial statements.

Revenue

Revenue	9 Months Ended
	Sep. 30, 2021
Revenue [Abstract]
Revenue	2. REVENUE Revenue Recognition The partnership recognizes revenue when obligations under the terms of a contract with a customer are satisfied. Generally, this occurs with the completion of services or the transfer of control of products to the customer or another specified third party. Revenue is measured as the amount of consideration expected to be received in exchange for providing services. Revenue by Source The following table disaggregates our revenue by major source (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues Service revenues Terminal services $ 1,987 $ 2,047 $ 6,196 $ 6,147 Trucking and other 1,001 1,162 3,186 3,420 Total service revenues 2,988 3,209 9,382 9,567 Leasing revenues (1) Storage and throughput services 11,564 12,520 35,389 36,090 Railcar transportation services 4,688 5,538 14,525 16,036 Terminal services 11 115 62 341 Total leasing revenues 16,263 18,173 49,976 52,467 Total revenues $ 19,251 $ 21,382 $ 59,358 $ 62,034 (1) Leasing revenues do not represent revenues recognized from contracts with customers under ASC 606, Revenue from Contracts with Customers , and are accounted for under ASC 842, Leases . Terminal Services Revenue The partnership provides terminal services and logistics solutions to Green Plains Trade, and other customers, through its fuel terminal facilities under various terminal service agreements, some of which have minimum volume commitments. Revenue generated by these terminals is disaggregated between service revenue and leasing revenue. If Green Plains Trade, or other customers, fail to meet their minimum volume commitments during the applicable term, a deficiency payment equal to the deficient volume multiplied by the applicable fee will be charged. Deficiency payments related to the partnership’s terminal services revenue may not be utilized as credits toward future volumes. At terminals where customers have shared use of terminal and tank storage assets, revenue is generated from contracts with customers and accounted for as service revenue. This service revenue is recognized at the point in time when product is withdrawn from tank storage. At terminals where a customer is predominantly provided exclusive use of the terminal or tank storage assets, the partnership is considered a lessor as part of an operating lease agreement. Revenue is recognized over the term of the lease based on the minimum volume commitment or total actual throughput if in excess of the minimum volume commitment. Trucking and Other Revenue The partnership transports ethanol, natural gasoline, other refined fuels and feedstocks by truck from identified receipt points to various delivery points. Trucking revenue is recognized over time based on the percentage of total miles traveled, which is on average less than 100 miles. Railcar Transportation Services Revenue Under the rail transportation services agreement, Green Plains Trade is obligated to use the partnership to transport ethanol and other fuels from receipt points identified by Green Plains Trade to nominated delivery points. Green Plains Trade is required to pay the partnership fees for the minimum railcar volumetric capacity provided, regardless of utilization of that capacity. However, Green Plains Trade is not charged for railcar volumetric capacity that is not available for use due to inspections, upgrades or routine repairs and maintenance. Revenue associated with the rail transportation services fee is considered leasing revenue and is recognized over the term of the lease based on the actual average daily railcar volumetric capacity provided. The partnership may also charge Green Plains Trade a related services fee for logistical operations management of railcar volumetric capacity utilized by Green Plains Trade which is not provided by the partnership. Revenue associated with the related services fee is also considered leasing revenue and recognized over the term of the lease based on the average volumetric capacity for which services are provided. Storage and Throughput Revenue The partnership generates leasing revenue from its storage and throughput agreement with Green Plains Trade based on contractual rates charged for the handling, storage and throughput of ethanol. Under this agreement, Green Plains Trade is required to pay the partnership a fee for a minimum volume commitment regardless of the actual volume delivered. If Green Plains Trade fails to meet its minimum volume commitment during any quarter, the partnership will charge Green Plains Trade a deficiency payment equal to the deficient volume multiplied by the applicable fee. The deficiency payment may be applied as a credit toward volumes delivered by Green Plains Trade in excess of the minimum volume commitment during the following four quarters, after which time any unused credits will expire. Revenue is recognized over the term of the lease based on the minimum volume commitment or total actual throughput if in excess of the minimum volume commitment and no deficiency related credits are available for use. Payment Terms The partnership has standard payment terms, which vary depending on the nature of the services provided, with the majority of terms falling within 10 to 30 days after transfer of control or completion of services. Contracts generally do not include a significant financing component in instances where the timing of revenue recognition differs from the timing of invoicing. Major Customers Revenue from Green Plains Trade Group was $ 18.3 million and $ 56.1 million for the three and nine months ended September 30, 2021, respectively, and $ 20.3 million and $ 58.3 million for the three and nine months ended September 30, 2020, respectively, which exceeds 10 % of the partnership’s total revenue. Contract Liabilities The partnership 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 following table reflects the changes in our unearned revenue from service agreements, which is recorded in accrued and other liabilities on the consolidated balance sheets, for the three and nine months ended September 30, 2021 (in thousands): Amount Balance at January 1, 2021 $ 247 Revenue recognized included in beginning balance ( 247 ) Net additions 344 Balance at March 31, 2021 344 Revenue recognized included in beginning balance ( 344 ) Net additions 132 Balance at June 30, 2021 132 Revenue recognized included in beginning balance ( 132 ) Net additions 133 Balance at September 30, 2021 $ 133 The partnership expects to recognize all of the unearned revenue associated with service agreements from contracts with customers as of September 30, 2021, in the subsequent quarter when the product is withdrawn from tank storage.

Debt

Debt	9 Months Ended
	Sep. 30, 2021
Debt [Abstract]
Debt	3. DEBT Term Loan Facility Green Plains Operating Company has a term loan to fund working capital, capital expenditures and other general partnership purposes. On July 20, 2021, the prior credit facility was amended, decreasing the total amount available to $ 60.0 million, extending the maturity from December 31, 2021 to July 20, 2026, and converting the credit facility to a term loan. Under the terms of the amended agreement, BlackRock purchased the outstanding $ 50.0 million balance of the prior credit facility from the previous lenders. As of September 30, 2021, the term loan had an outstanding balance of $ 60.0 million and an interest rate of 8.13 % . Interest on the term loan is based on three-month LIBOR plus 8.00 %, with a 0 % LIBOR floor. Interest is payable on the 15th day of each March, June, September and December during the term, with the first interest payment being September 15, 2021. The amended term loan does not require any principal payments; however, the partnership has the option to prepay $ 1.5 million per quarter beginning twelve months after the closing date. During the nine months ended September 30, 2021, prior to the amendment, the partnership made principal payments of $ 50.0 million on the credit facility, including $ 19.5 million of scheduled repayments, $ 27.5 million related to the sale of the storage assets located adjacent to the Ord, Nebraska ethanol plant and a $ 3.0 million prepayment made with excess cash. The partnership’s obligations under the term loan are secured by a first priority lien on (i) the equity interests 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 any agreements with Green Plains Trade, (iii) all proceeds and products of the equity interests of the partnership’s present and future subsidiaries and its personal property and (iv) substantially all of the partnership’s real property and material leases of real property. The terms impose affirmative and negative covenants, including restrictions on 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 term loan also requires the partnership to maintain a maximum consolidated leverage ratio and a minimum consolidated debt service coverage ratio, each of which is calculated on a pro forma basis with respect to acquisitions and divestitures occurring during the applicable period. As of the end of any fiscal quarter, the maximum consolidated leverage ratio required is no more than 2.50 x and the minimum debt service coverage ratio required is no less 1.10 x. The consolidated leverage ratio is calculated by dividing total funded indebtedness by the sum of the four preceding fiscal quarters’ consolidated EBITDA. The consolidated debt service coverage ratio is calculated by taking the sum of the four preceding fiscal quarters’ consolidated EBITDA minus income taxes and consolidated capital expenditures for such period divided by the sum of the four preceding fiscal quarters’ consolidated interest charges plus consolidated scheduled funded debt payments for such period. Under the amended terms of the loan, the partnership has no restrictions on the amount of quarterly distribution payments, so long as (i) no default has occurred and is continuing, or would result from payment of the distribution, and (ii) the partnership and its subsidiaries are in compliance with its financial covenants and remain in compliance after payment of the distribution. The partnership had $ 60.0 million and $ 100.0 million of borrowings outstanding as of September 30, 2021, and December 31, 2020, respectively. In addition, the partnership had $ 0.4 million and $ 2.3 million of unamortized debt issuance costs recorded as a direct reduction of the carrying value of the partnership’s long-term debt as of September 30, 2021, and current maturities of long-term debt as of December 31, 2020, respectively. The partnership believes the carrying amount of its debt approximated fair value at both September 30, 2021, and December 31, 2020. Covenant Compliance The partnership, including all of its subsidiaries, was in compliance with its debt covenants as of September 30, 2021.

Dispositions

Dispositions	9 Months Ended
	Sep. 30, 2021
Dispositions [Abstract]
Dispositions	4. DISPOSITIONS Ord Disposition On March 22, 2021, Green Plains closed on the sale of its ethanol plant located in Ord, Nebraska to GreenAmerica Biofuels Ord LLC. Correspondingly, the partnership’s storage assets located adjacent to the Ord plant were sold to Green Plains for $ 27.5 million, along with the transfer of associated railcar operating leases. This transaction was accounted for as a transfer between entities under common control and was approved by the conflicts committee. There were no material transaction costs recorded for the disposition. The following is a summary of assets and liabilities disposed of or assumed (in thousands): Total consideration $ 27,500 Identifiable assets and liabilities disposed of: Property and equipment, net 542 Operating lease right-of-use assets 1,811 Operating lease current liabilities ( 1,021 ) Operating lease long-term liabilities ( 790 ) Total identifiable net assets 542 Partners' deficit effect $ 26,958 In conjunction with the disposition, the partnership amended the 1) operational services agreement, 2) ethanol storage and throughput agreement, and 3) rail transportation services agreement. Please refer to Note 10 – Related Party Transactions to the consolidated financial statements for additional information. Hereford Disposition On December 28, 2020, Green Plains closed on the sale of its ethanol plant located in Hereford, Texas to Hereford Ethanol Partners, L.P. Correspondingly, the partnership’s storage assets located adjacent to the Hereford plant were sold to Green Plains for $ 10.0 million, along with the transfer of associated railcar operating leases. This transaction was accounted for as a transfer between entities under common control and was approved by the conflicts committee. There were no material transaction costs recorded for the disposition. The following is a summary of assets and liabilities disposed of or assumed (in thousands): Total consideration $ 10,000 Identifiable assets and liabilities disposed of: Property and equipment, net 2,494 Operating lease right-of-use assets 5,094 Operating lease current liabilities ( 976 ) Operating lease long-term liabilities ( 4,200 ) Asset retirement obligations ( 186 ) Total identifiable net assets 2,226 Liabilities assumed 163 Partners' deficit effect $ 7,611 In conjunction with the disposition, the partnership amended the 1) operational services agreement, 2) ethanol storage and throughput agreement, and 3) rail transportation services agreement. Please refer to Note 10 – Related Party Transactions to the consolidated financial statements for additional information.

Unit-Based Compensation

Unit-Based Compensation	9 Months Ended
	Sep. 30, 2021
Unit-Based Compensation [Abstract]
Unit-Based Compensation	5. UNIT-BASED COMPENSATION The partnership has a long-term incentive plan (LTIP) intended to promote the interests of the partnership, its general partner and affiliates by providing unit-based incentive compensation awards to employees, consultants and directors to encourage superior performance. The LTIP reserves 2,500,000 common limited partner units for issuance in the form of options, restricted units, phantom units, distribution equivalent rights, substitute awards, unit appreciation rights, unit awards, profit interest units or other unit-based awards. The partnership measures unit-based compensation at fair value on the grant date, with no adjustments for estimated forfeitures. The partnership records noncash compensation expense related to the awards over the requisite service period on a straight-line basis. The non-vested unit-based activity for the nine months ended September 30, 2021, is as follows: Non-Vested Units Weighted-Average Grant-Date Fair Value Weighted-Average Remaining Vesting Term (in years) Non-vested at December 31, 2020 47,620 $ 6.72 Granted 25,976 12.32 Forfeited ( 6,494 ) 12.32 Vested ( 47,620 ) 6.72 Non-vested at September 30, 2021 19,482 $ 12.32 0.8 Compensation costs related to the unit-based awards of $ 60 thousand and $ 219 thousand were recognized during the three and nine months ended September 30, 2021, respectively. Compensation costs related to the unit-based awards of $ 81 thousand and $ 239 thousand were recognized during the three and nine months ended September 30, 2020, respectively. As of September 30, 2021, there was $ 180 thousand of unrecognized compensation costs from unit-based compensation awards.

Partners' Equity (Deficit)

Partners' Equity (Deficit)	9 Months Ended
	Sep. 30, 2021
Partners' Equity (Deficit) [Abstract]
Partners' Equity (Deficit)	6. PARTNERS’ EQUITY (DEFICIT) Changes in partners’ equity (deficit) are as follows (in thousands): Limited Partners Common Units- Public Common Units- Green Plains General Partner Total Balance, December 31, 2020 $ 124,823 $ ( 170,368 ) $ ( 917 ) $ ( 46,462 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,395 ) ( 1,390 ) ( 57 ) ( 2,842 ) Net income 5,264 5,248 215 10,727 Ord disposition - 26,419 539 26,958 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, March 31, 2021 128,771 ( 140,091 ) ( 220 ) ( 11,540 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,395 ) ( 1,390 ) ( 57 ) ( 2,842 ) Net income 5,054 5,038 206 10,298 Unit-based compensation, including general partner net contributions 80 - - 80 Balance, June 30, 2021 132,510 ( 136,443 ) ( 71 ) ( 4,004 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,397 ) ( 1,390 ) ( 57 ) ( 2,844 ) Net income 4,630 4,607 188 9,425 Unit-based compensation, including general partner net contributions 60 - 5 65 Balance, September 30, 2021 $ 135,803 $ ( 133,226 ) $ 65 $ 2,642 Limited Partners Common Units- Public Common Units- Green Plains General Partner Total Balance, December 31, 2019 $ 114,006 $ ( 188,304 ) $ ( 1,449 ) $ ( 75,747 ) Quarterly cash distributions to unitholders ($ 0.475 per unit) ( 5,498 ) ( 5,504 ) ( 278 ) ( 11,280 ) Net income 5,078 5,084 207 10,369 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, March 31, 2020 113,665 ( 188,724 ) ( 1,520 ) ( 76,579 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,389 ) ( 1,390 ) ( 57 ) ( 2,836 ) Net income 4,987 4,993 204 10,184 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, June 30, 2020 117,342 ( 185,121 ) ( 1,373 ) ( 69,152 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,394 ) ( 1,391 ) ( 57 ) ( 2,842 ) Net income 5,058 5,042 206 10,306 Unit-based compensation, including general partner net contributions 81 - 7 88 Balance, September 30, 2020 $ 121,087 $ ( 181,470 ) $ ( 1,217 ) $ ( 61,600 ) A roll forward of the number of common limited partner units outstanding is as follows: Common Units- Common Units- Public Green Plains Total Units, December 31, 2020 11,621,623 11,586,548 23,208,171 Units issued under the LTIP 25,976 - 25,976 Units forfeited under the LTIP ( 6,494 ) - ( 6,494 ) Units, September 30, 2021 11,641,105 11,586,548 23,227,653 Issuance of Additional Securities The partnership agreement authorizes the partnership to issue unlimited additional partnership interests on the terms and conditions determined by the general partner without unitholder approval. Cash Distribution Policy Quarterly distributions are made from available cash within 45 days after the end of each calendar quarter, assuming the partnership has available cash. Available cash generally means all cash and cash equivalents on hand at the end of that quarter less cash reserves established by the general partner, including those for future capital expenditures, future acquisitions and anticipated future debt service requirements, plus all or any portion of the cash on hand resulting from working capital borrowings made subsequent to the end of that quarter. The general partner also holds incentive distribution rights that entitles it to receive increasing percentages, up to 48 %, of available cash distributed from operating surplus, as defined in the partnership agreement, in excess of $ 0.46 per unit per quarter. The maximum distribution of 48 % does not include any distributions the general partner or its affiliates may receive on its general partner interest or common units. On February 12, 2021 , the partnership distributed $ 2.8 million to unitholders of record as of February 5, 2021 , related to the quarterly cash distribution of $ 0.12 per unit that was declared on January 21, 2021 , for the quarter ended December 31, 2020. On May 14, 2021 , the partnership distributed $ 2.8 million to unitholders of record as of May 7, 2021 , related to the quarterly cash distribution of $ 0.12 per unit that was declared on April 22, 2021 , for the quarter ended March 31, 2021. On August 13, 2021 , the partnership distributed $ 2.8 million to unitholders of record as of August 6, 2021 , related to the quarterly cash distribution of $ 0.12 per unit that was declared on July 22, 2021 , for the quarter ended June 30, 2021. On October 19, 2021 , the board of directors of the general partner declared a quarterly cash distribution of $ 0.435 per unit, or approximately $ 10.3 million, for the quarter ended September 30, 2021. The distribution is payable on November 12, 2021 , to unitholders of record at the close of business on November 5, 2021 . The total cash distributions declared for the three and nine months ended September 30, 2021 and 2020, are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 General partner distributions $ 206 $ 57 $ 320 $ 171 Limited partner common units - public 5,064 1,400 7,856 4,177 Limited partner common units - Green Plains 5,040 1,391 7,820 4,172 Total distributions to limited partners 10,104 2,791 15,676 8,349 Total distributions declared $ 10,310 $ 2,848 $ 15,996 $ 8,520

Earnings Per Unit

Earnings Per Unit	9 Months Ended
	Sep. 30, 2021
Earnings Per Unit [Abstract]
Earnings Per Unit	7. EARNINGS PER UNIT The partnership computes earnings per unit using the two-class method. Earnings per unit applicable to common units is calculated by dividing the respective limited partners’ interest in net income by the weighted average number of common units outstanding during the period, adjusted for the dilutive effect of any outstanding dilutive securities. Diluted earnings per limited partner unit was the same as basic earnings per limited partner unit as there were no potentially dilutive common units outstanding as of September 30, 2021. The following tables show the calculation of earnings per limited partner unit – basic and diluted (in thousands, except for per unit data): Three Months Ended September 30, 2021 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 10,104 $ 206 $ 10,310 Earnings less than distributions ( 867 ) ( 18 ) ( 885 ) Total net income $ 9,237 $ 188 $ 9,425 Weighted-average units outstanding - basic and diluted 23,208 Earnings per limited partner unit - basic and diluted $ 0.40 Nine Months Ended September 30, 2021 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 15,676 $ 320 $ 15,996 Earnings in excess of distributions 14,165 289 14,454 Total net income $ 29,841 $ 609 $ 30,450 Weighted-average units outstanding - basic and diluted 23,177 Earnings per limited partner unit - basic and diluted $ 1.29 Three Months Ended September 30, 2020 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 2,791 $ 57 $ 2,848 Earnings in excess of distributions 7,309 149 7,458 Total net income $ 10,100 $ 206 $ 10,306 Weighted-average units outstanding - basic and diluted 23,161 Earnings per limited partner unit - basic and diluted $ 0.44 Nine Months Ended September 30, 2020 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 8,349 $ 171 $ 8,520 Earnings in excess of distributions 21,893 446 22,339 Total net income $ 30,242 $ 617 $ 30,859 Weighted-average units outstanding - basic and diluted 23,145 Earnings per limited partner unit - basic and diluted $ 1.31

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Taxes [Abstract]
Income Taxes	8. INCOME TAXES The partnership is a limited partnership, which is not subject to federal income taxes. However, the partnership is subject to state income taxes in certain states. As a result, the financial statements reflect a provision or benefit for such income taxes. The general partner and the unitholders are responsible for paying federal and state income taxes on their share of the partnership’s taxable income. The partnership’s income tax balances did not have a material impact on the financial statements. The partnership recognizes uncertainties in income taxes based upon the technical merits of the position, and measures the maximum benefit and degree of likelihood to determine the tax liability in the financial statements. The partnership does not have any material uncertain tax positions as of September 30, 2021.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies [Abstract]
Commitments and Contingencies	9. COMMITMENTS AND CONTINGENCIES Operating Lease Expense The partnership leases certain facilities, parcels of land, and railcars with remaining terms ranging from less than one year to approximately 10.1 years, including renewal options reasonably certain to be exercised for the land and facility leases. Railcar agreement renewals are not considered reasonably certain to be exercised as they typically renew with different underlying terms. The partnership may sublease certain of its railcars to third parties on a short-term basis. These subleases are classified as operating leases, with the associated sublease revenue recognized on a straight-line basis over the lease term. The components of lease expense for the three and nine months ended September 30, 2021 and 2020, are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Lease expense Operating lease expense (1) $ 3,276 $ 4,277 $ 10,631 $ 11,970 Variable lease expense (benefit) (2) 33 ( 196 ) ( 124 ) ( 221 ) Total lease expense $ 3,309 $ 4,081 $ 10,507 $ 11,749 (1) Amount includes an additional $ 0.2 million of accelerated lease expense due to the early termination of leased railcar assets for the three and nine months ended September 30, 2020. (2) Represents railcar lease abatements provided by the lessor when railcars are out of service during periods of maintenance or upgrade, offset by amounts incurred in excess of the minimum payments required for the handling and unloading of railcars for a certain lease. Supplemental cash flow information related to operating leases is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,188 $ 3,918 $ 10,373 $ 11,279 Right-of-use assets obtained in exchange for lease obligations: Operating leases 2,959 6,310 12,641 11,504 Right-of-use assets and lease obligations derecognized due to lease modifications: Operating leases 1,838 7 1,889 7 Supplemental balance sheet information related to operating leases is as follows: September 30, 2021 December 31, 2020 Weighted average remaining lease term 4.3 years 4.5 years Weighted average discount rate 3.66 % 4.11 % Aggregate minimum lease payments under the operating lease agreements for the remainder of 2021 and in future years are as follows (in thousands): Year Ending December 31, Amount 2021 $ 3,821 2022 13,390 2023 11,050 2024 9,023 2025 6,453 Thereafter 4,107 Total 47,844 Less: Present value discount ( 4,917 ) Operating lease liabilities $ 42,927 Lease Revenue The components of lease revenue for the three and nine months ended September 30, 2021 and 2020, are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Lease revenue Operating lease revenue $ 15,631 $ 17,613 $ 48,191 $ 51,744 Variable lease revenue (1) 632 544 1,785 571 Sublease revenue - 16 - 152 Total lease revenue $ 16,263 $ 18,173 $ 49,976 $ 52,467 (1) Represents amounts charged to Green Plains Trade under the storage and throughput agreement in excess of the initial rate of $ 0.05 per gallon, amounts delivered by Green Plains Trade and other customers in excess of various minimum volume commitments, and the difference between the contracted railcar volumetric capacity and the actual amount provided to Green Plains Trade during the period. In accordance with the amended storage and throughput agreement, Green Plains Trade is obligated to deliver a minimum volume of 217.7 mmg per calendar quarter to the partnership’s storage facilities and pay $ 0.05312 per gallon on all volume it throughputs associated with the agreement. The rate increased on July 1, 2020 from $ 0.05 per gallon to $ 0.05312 per gallon in accordance with the terms of the agreement. The minimum volume commitment decreased from 232.5 mmg per calendar quarter to 217.7 mmg per calendar quarter as of March 22, 2021, in conjunction with the Ord disposition. The remaining lease term for the storage and throughput agreement is 7.8 years, with automatic one year renewal periods in which either party has the right to terminate the contract. Due to the unilateral right to termination during the renewal period, the lease contract would no longer contain enforceable rights or obligations. Therefore, the lease term does not include the successive one year renewal periods. Anticipated minimum operating lease revenue under this agreement assuming a consistent rate of $ 0.05312 per gallon for the remainder of 2021 and in future years, is as follows (in thousands): Year Ending December 31, Amount 2021 $ 11,564 2022 46,257 2023 46,257 2024 46,257 2025 46,257 Thereafter 161,899 Total $ 358,491 In accordance with the amended rail transportation services agreement with Green Plains Trade, Green Plains Trade is required to pay the rail transportation services fee for railcar volumetric capacity provided by the partnership. The remaining lease term for this agreement is 3.8 years, with automatic one year renewal periods in which either party has the right to terminate the contract. Due to the unilateral right to termination during the renewal period, the lease contract would no longer contain enforceable rights or obligations. Therefore, the lease term does not include the successive one year renewal periods. Under the terms of the agreement, Green Plains Trade is not required to pay for volumetric capacity that is not available due to inspections, upgrades, or routine repairs and maintenance. As a result, the actual volumetric capacity billed may be reduced based on the amount of volumetric capacity available for use during any applicable period. Anticipated minimum operating lease revenue under this agreement for the remainder of 2021 and in future years is as follows (in thousands): Year Ending December 31, Amount 2021 $ 4,667 2022 17,519 2023 12,765 2024 9,792 2025 6,395 Thereafter 312 Total $ 51,450 Other Commitments and Contingencies The partnership has agreements for contracted services with certain vendors that require the partnership to pay minimum monthly amounts, which expire on various dates. These agreements do not contain an identified asset and therefore are not considered operating leases. The partnership satisfied the minimum commitments under these agreements during the three and nine months ended September 30, 2021 and 2020. Aggregate minimum payments under these agreements for the remainder of 2021 and in future years are as follows (in thousands): Year Ending December 31, Amount 2021 $ 168 2022 157 2023 - 2024 - 2025 - Thereafter - Total $ 325 Legal The partnership may be involved in litigation that arises during the ordinary course of business. Currently, the partnership is not a party to any material litigation.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	10. RELATED PARTY TRANSACTIONS The partnership engages in various related party transactions with Green Plains and subsidiaries of Green Plains. Green Plains provides a variety of shared services to the partnership, including general management, accounting and finance, payroll and human resources, information technology, legal, communications and treasury activities. These costs are proportionally allocated by Green Plains to its subsidiaries based on common financial metrics management believes are reasonable. The partnership recorded expenses related to these shared services of $ 0.8 million and $ 2.4 million for the three and nine months ended September 30, 2021, respectively, and $ 0.8 million and $ 2.5 million for the three and nine months ended September 30, 2020, respectively. In addition, the partnership reimburses Green Plains for wages and benefit costs of employees directly performing services on its behalf. Green Plains may also pay certain direct costs on behalf of the partnership, which are reimbursed by the partnership. The partnership believes the consolidated financial statements reflect all material costs of doing business related to its operations, including expenses incurred by other entities on its behalf. Omnibus Agreement The partnership has entered into an omnibus agreement, as amended, with Green Plains and its affiliates which, among other terms and conditions, addresses the partnership’s obligation to reimburse Green Plains for direct or allocated costs and expenses incurred by Green Plains for general and administrative services; the prohibition of Green Plains and its subsidiaries from owning, operating or investing in any business that owns or operates fuel terminals or fuel transportation assets; the partnership’s right of first offer to acquire assets if Green Plains decides to sell them; a nontransferable, nonexclusive, royalty-free license to use the Green Plains trademark and name; the allocation of taxes among the parent, the partnership and its affiliates and the parent’s preparation and filing of tax returns; and an indemnity by Green Plains for certain environmental and other liabilities. If Green Plains or its affiliates cease to control the general partner, then either Green Plains or the partnership may terminate the omnibus agreement, provided that (i) the indemnification obligations of the parties survive according to their respective terms; and (ii) Green Plains’ obligation to reimburse the partnership for operational failures survives according to its terms. Operating Services and Secondment Agreement The general partner has entered into an operational services and secondment agreement, as amended, with Green Plains. Under the terms of the agreement, Green Plains seconds employees to the general partner to provide management, maintenance and operational functions for the partnership, including regulatory matters, health, environment, safety and security programs, operational services, emergency response, employee training, finance and administration, human resources, business operations and planning. The seconded personnel are under the direct management and supervision of the general partner who reimburses the parent for the cost of the seconded employees, including wages and benefits. If a seconded employee does not devote 100% of his or her time providing services to the general partner, the general partner reimburses the parent for a prorated portion of the employee’s overall wages and benefits based on the percentage of time the employee spent working for the general partner. Under the operational services and secondment agreement, Green Plains will indemnify the partnership from any claims, losses or liabilities incurred by the partnership, including third-party claims, arising from their performance of the operational services secondment agreement; provided, however, that Green Plains will not be obligated to indemnify the partnership for any claims, losses or liabilities arising out of the partnership’s gross negligence, willful misconduct or bad faith with respect to any services provided under the operational services and secondment agreement. Commercial Agreements The partnership has various fee-based commercial agreements with Green Plains Trade, including:  Storage and throughput agreement, expiring on June 30, 2029;  Rail transportation services agreement, expiring on June 30, 2025;  Trucking transportation agreement, expiring on May 31, 2022;  Terminal services agreement for the Birmingham, Alabama unit train terminal, expiring on December 31, 2022; and  Various other terminal services agreements for other fuel terminal facilities, each with Green Plains Trade. The storage and throughput, rail transportation services, and trucking transportation agreements have various automatic renewal terms if not cancelled by either party within specified timeframes. Please refer to Item 15 – Exhibits, Financial Statement Schedule in our 2020 annual report for further details. The storage and throughput agreement and terminal services agreements are supported by minimum volume commitments. The rail transportation services agreement is supported by minimum take-or-pay volumetric capacity commitments. Under the storage and throughput agreement, as amended, Green Plains Trade is obligated to deliver a minimum volume of 217.7 mmg of product per calendar quarter to the partnership’s storage facilities and pay $ 0.05312 per gallon on all volume it throughputs associated with the agreement. The rate increased on July 1, 2020 from $ 0.05 per gallon to $ 0.05312 per gallon in accordance with the terms of the agreement. The minimum volume commitment decreased from 232.5 mmg per calendar quarter to 217.7 mmg per calendar quarter as of March 22, 2021, in conjunction with the Ord disposition. In addition, the storage and throughput agreement with Green Plains Trade was extended an additional year to June 30, 2029 as part of this transaction. If Green Plains Trade fails to meet its minimum volume commitment during any quarter, Green Plains Trade will pay the partnership a deficiency payment equal to the deficient volume multiplied by the applicable fee. The deficiency payment may be applied as a credit toward payments due on future volumes delivered by Green Plains Trade in excess of the minimum volume commitment during the following four quarters, after which time this option will expire. For the three months ended September 30, 2021, the partnership charged Green Plains Trade $ 1.9 million related to the minimum volume commitment deficiency for the quarter, resulting in a credit to be applied against excess volumes in future periods. As of September 30, 2021, prior year credits of $ 2.4 million expired, leaving a cumulative balance of minimum volume deficiency credits available to Green Plains Trade of $ 7.2 million. These credits expire, if unused, as follows:  $ 1.1 million, expiring on December 31, 2021;  $ 2.8 million, expiring on March 31, 2022;  $ 1.4 million, expiring on June 30, 2022; and  $ 1.9 million, expiring on September 30, 2022. The above credits have been previously recognized as revenue by the partnership, and as such, future volumes throughput by Green Plains Trade in excess of the quarterly minimum volume commitment, up to the amount of these credits, will not be recognized in revenue in future periods prior to expiration. Under the rail transportation services agreement, Green Plains Trade is obligated to use the partnership to transport ethanol and other fuels from receipt points identified by Green Plains Trade to nominated delivery points. The average daily railcar volumetric capacity provided by the partnership was 68.6 mmg and 70.3 mmg, respectively, and the associated monthly fee was approximately $ 0.0228 and $ 0.0230 per gallon, res pec tively, during the three and nine months ended September 30, 2021. The average daily railcar volumetric capacity provided by the partnership was 81.5 mmg and 80.4 mmg, respectively, and the associated monthly fee was approximately $ 0.0226 and $ 0.0220 per gallon, res pec tively, during the three and nine months ended September 30, 2020. The partnership’s leased railcar fleet consisted of approximately 2,300 and 2,820 railcars as of September 30, 2021 and 2020, respectively. Green Plains Trade is also obligated to use the partnership for logistical operations management and other services related to average daily railcar volumetric capacity provided by Green Plains Trade, which was approximately 0.7 mmg for both the three and nine months ended September 30, 2021, and 0.7 mmg and 2.0 mmg for the three and nine months ended September 30, 2020, respectively. Green Plains Trade is obligated to pay a monthly fee of approximately $ 0.0013 per gallon for these services. In addition, Green Plains Trade reimburses the partnership for costs related to: (1) railcar switching and unloading fees; (2) increased costs related to changes in law or governmental regulation related to the specification, operation or maintenance of railcars; (3) demurrage charges, except when the charges are due to the partnership’s gross negligence or willful misconduct; and (4) fees related to rail transportation services under transportation contracts with third-party common carriers. As needed, Green Plains Trade contracts with the partnership for additional railcar volumetric capacity during the normal course of business at comparable margins. Under the trucking transportation agreement, Green Plains Trade pays the partnership to transport ethanol and other fuels by truck from identified receipt points to various delivery points. Green Plains Trade is obligated to pay a monthly trucking transportation services fee equal to the aggregate volume transported in a calendar month by the partnership’s trucks, multiplied by the applicable rate for each truck lane. A truck lane is defined as a specific and routine route of travel between a point of origin and point of destination. Rates for each truck lane are negotiated based on product, location, mileage and other factors. Green Plains Trade reimburses the partnership for costs related to: (1) truck switching and unloading fees; (2) increased costs related to changes in law or governmental regulation related to the specification, operation and maintenance of trucks; and (3) fees related to trucking transportation services under transportation contracts with third-party common carriers. Under the existing Birmingham terminal services agreement, effective through December 31, 2022, Green Plains Trade is obligated to throughput a minimum volume commitment of approximately 8.3 mmg per month and pay associated throughput fees, as well as fees for ancillary services. The partnership recorded revenues from Green Plains Trade under the storage and throughput agreement and rail transportation services agreement of $ 16.2 million and $ 49.9 million for the three and nine months ended September 30, 2021, respectively, and $ 18.1 million and $ 52.0 million for the three and nine months ended September 30, 2020, respectively. In addition, the partnership recorded revenues from Green Plains Trade and other Green Plains subsidiaries related to trucking and terminal services of $ 2.0 million and $ 6.2 million for the three and nine months ended September 30, 2021, respectively, and $ 2.2 million and $ 6.3 million for the three and nine months ended September 30, 2020, respectively. Cash Distributions The partnership distributed $ 1.4 million and $ 4.3 million to Green Plains related to the quarterly cash distribution paid for the three and nine months ended September 30, 2021, respectively, and $ 1.5 million and $ 8.7 million for the three and nine months ended September 30, 2020, respectively.

Equity Method Investment

Equity Method Investment	9 Months Ended
	Sep. 30, 2021
Equity Method Investment [Abstract]
Equity Method Investment	11. EQUITY METHOD INVESTMENT NLR Energy Logistics LLC The partnership and Delek Renewables LLC have a 50 / 50 joint venture, NLR Energy Logistics LLC, which operates a unit train terminal in the Little Rock, Arkansas area with capacity to unload 110 -car unit trains and provide approximately 100,000 barrels of storage. As of September 30, 2021, the partnership’s investment balance in the joint venture was $ 4.5 million. In addition, the partnership had no outstanding receivable due from NLR as of September 30, 2021, and an outstanding receivable of $ 25 thousand due from NLR for various reimbursable expenses as of December 31, 2020. The partnership does not consolidate any part of the assets or liabilities or operating results of its equity method investee. The partnership’s share of net income or loss in the investee increases or decreases, as applicable, the carrying value of the investment. With respect to NLR, the partnership determined that this entity does not represent a variable interest entity and consolidation is not required. In addition, although the partnership has the ability to exercise significant influence over the joint venture through board representation and voting rights, all significant decisions require the consent of the other investor without regard to economic interest.

Basis of Presentation, Descri_2

Basis of Presentation, Description of Business and Summary of Significant Accounting Policies (Policy)	9 Months Ended
	Sep. 30, 2021
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 accounts of the partnership and its controlled subsidiaries. All significant intercompany balances and transactions are eliminated on a consolidated basis for reporting purposes. Results for the interim periods presented are not necessarily indicative of the expected results for the entire year. The accompanying unaudited consolidated financial statements are prepared in accordance with GAAP for interim financial information and instructions to Form 10-Q and Article 10 of Regulation S-X. Because they do not include all of the information and footnotes required by GAAP, the consolidated financial statements should be read in conjunction with the partnership’s 2020 annual report on Form 10-K for the year ended December 31, 2020, as filed with the SEC on February 16, 2021. The partnership accounts for its interest in joint ventures using the equity method of accounting, with its investment recorded at the acquisition cost plus the partnership’s share of equity in undistributed earnings and reduced by the partnership’s share of equity in undistributed losses and distributions received.
Use of Estimates in the Preparation of Consolidated Financial Statements	Use of Estimates in the Preparation of Consolidated Financial Statements Preparation of the consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and revenues and expenses during the reporting period. The partnership bases its estimates on historical experience and assumptions it believes are proper and reasonable under the circumstances. The partnership regularly evaluates the appropriateness of these estimates and assumptions. Actual results could differ from those estimates. Key accounting policies, including, but not limited to, those related to revenue recognition, leases, depreciation of property and equipment, asset retirement obligations, and impairment of long-lived assets and goodwill are impacted significantly by judgments, assumptions and estimates used to prepare the consolidated financial statements.
Description of Business	Description of Business The partnership provides fuel storage and transportation services by owning, operating, developing and acquiring ethanol and fuel storage terminals, transportation assets and other related assets and businesses. The partnership is its parent’s primary downstream logistics provider to support the parent’s approximately 0.96 bgy ethanol marketing and distribution business since the partnership’s assets are the principal method of storing and delivering the ethanol its parent produces. The ethanol produced by the parent is predominantly fuel grade, made principally from starch extracted from corn, and is primarily used for blending with gasoline. Ethanol currently comprises approximately 10 % of the U.S. gasoline market and is an economical source of octane and oxygenates for blending into the fuel supply. The partnership does not take ownership of, or receive any payments based on the value of the ethanol, other fuels or products it handles. As a result, the partnership does not have any direct exposure to fluctuations in commodity prices.
Revenue Recognition	Revenue Recognition The partnership recognizes revenue when obligations under the terms of a contract with a customer are satisfied. Generally, this occurs with the completion of services or the transfer of control of products to the customer or another specified third party. For contracts with customers in which a take-or-pay commitment exists, any minimum volume deficiency charges are recognized as revenue in the period incurred and are not allowed to be credited towards excess volumes in future periods. The partnership generates a substantial portion of its revenues under fee-based commercial agreements with Green Plains Trade. Operating lease revenue related to minimum volume commitments is recognized on a straight-line basis over the term of the lease. Under the terms of the storage and throughput agreement with Green Plains Trade, to the extent shortfalls associated with minimum volume commitments in the previous four quarters continue to exist, volumes in excess of the minimum volume commitment are applied to those shortfalls. Remaining excess volumes generating operating lease revenue are recognized as incurred. Please refer to Note 2 - Revenue to the consolidated financial statements for further details.
Operations and Maintenance Expenses	Operations and Maintenance Expenses The partnership’s operations and maintenance expenses consist primarily of lease expenses related to the transportation assets, labor expenses, outside contractor expenses, insurance premiums, repairs and maintenance expenses, and utility costs. These expenses also include fees for certain management, maintenance and operational services to support the storage and terminal facilities, trucks, and leased railcar fleet allocated by Green Plains under the operational services and secondment agreement.
Concentrations of Credit Risk	Concentrations of Credit Risk In the normal course of business, the partnership is exposed to credit risk resulting from the possibility a loss may occur due to failure of another party to perform according to the terms of their contract. The partnership provides fuel storage and transportation services for various parties with a significant portion of its revenues earned from Green Plains Trade. The partnership continually monitors its credit risk exposure and concentrations. Please refer to Note 2 – Revenue and Note 10 – Related Party Transactions to the consolidated financial statements for additional information .
Impairment of Long-Lived Assets and Goodwill	Impairment of Long-Lived Assets and Goodwill The partnership reviews its long-lived assets, currently consisting primarily of property and equipment and operating lease right-of-use assets, for impairment when events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable. Recoverability of assets to be held and used is measured by comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. No impairment charges were recorded for the periods reported.   The partnership’s goodwill currently is comprised of amounts recognized by the MLP predecessor related to terminal services assets. The partnership reviews goodwill at the reporting unit level for impairment at least annually, as of October 1, or more frequently when events or changes in circumstances indicate that impairment may have occurred.
Leases	Leases The partnership leases certain facilities, parcels of land, and railcars. These leases are accounted for as operating leases, with lease expense recognized on a straight-line basis over the lease term. The term of the lease may include options to extend or terminate the lease when it is reasonably certain that such options will be exercised. For leases with initial terms greater than 12 months, the partnership records operating lease right-of-use assets and corresponding operating lease liabilities. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet. The partnership had no short-term lease expense for the three and nine months ended September 30, 2021 or 2020. Operating lease right-of-use assets represent the right to control an underlying asset for the lease term and operating lease liabilities represent the obligation to make lease payments arising from the lease. These assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As the partnership’s leases do not provide an implicit rate, the incremental borrowing rate is used based on information available at the commencement date to determine the present value of future payments. The partnership utilizes a portfolio approach for lease classification, which allows for an entity to group together leases with similar characteristics, provided that its application does not create a material difference when compared to accounting for the leases at a contract level. For the partnership’s railcar leases, the partnership combines the railcars within each contract rider and accounts for each contract rider as an individual lease. From a lessee perspective, the partnership combines both the lease and non-lease components and accounts for them as one lease. Certain of the partnership’s railcar agreements provide for maintenance costs to be the responsibility of the partnership as incurred or charged by the lessor. This maintenance cost is a non-lease component that the partnership combines with the monthly rental payment and accounts for the total cost as operating lease expense. In addition, the partnership has a land lease that contains a non-lease component for the handling and unloading services the landlord provides. The partnership combines the cost of services with the land lease cost and accounts for the total as operating lease expense. The partnership records operating lease revenue as part of its operating lease agreements for storage and throughput services, rail transportation services, and certain terminal services. In addition, the partnership may sublease certain of its railcars to third parties on a short-term basis. These subleases are classified as operating leases, with the associated sublease revenue recognized on a straight-line basis over the lease term. From a lessor perspective, the partnership classifies certain costs as lease costs for accounting purposes, which may differ from a tax or legal perspective. The partnership combines both the lease and non-lease components and accounts for them as one lease. The storage and throughput agreement consists of costs paid by Green Plains Trade for the rental of the terminal facilities, which for accounting purposes are treated as lease costs, as well as other costs for the throughput services provided by the partnership, which are treated as non-lease costs. For this agreement, the partnership combines the facility rental revenue and the service revenue and accounts for the total as leasing revenue. Similarly, the railcar transportation services agreement consists of costs paid by Green Plains Trade for the use of the partnership’s railcar assets, which are treated as lease costs for accounting purposes, as well as costs for logistical operations management and other services, which are treated as non-lease costs. For this agreement, the partnership combines the railcar rental revenue and the service revenue and accounts for the total as leasing revenue. Please refer to Note 9 – Commitments and Contingencies to the consolidated financial statements for further details on operating lease expense and revenue. Please refer to Note 2 - Revenue to the consolidated financial statements for further details on the operating lease agreements in which the partnership is a lessor.
Asset Retirement Obligations	Asset Retirement Obligations The partnership records an ARO for the fair value of the estimated costs to retire a tangible long-lived asset in the period incurred if it can be reasonably estimated, which is subsequently adjusted for accretion expense. Corresponding asset retirement costs are capitalized as a long-lived asset and depreciated on a straight-line basis over the asset’s remaining useful life. The expected present value technique used to calculate the fair value of the AROs includes assumptions about costs, settlement dates, interest accretion, and inflation. Changes in assumptions, such as the amount or timing of estimated cash flows, could increase or decrease the AROs. The partnership’s AROs are based on legal obligations to perform remedial activity related to land, machinery and equipment when certain operating leases expire.
Segment Reporting	Segment Reporting The partnership accounts for segment reporting in accordance with ASC 280, Segment Reporting , which establishes standards for entities reporting information about the operating segments and geographic areas in which they operate. Management evaluated how its chief operating decision maker has organized the partnership for purposes of making operating decisions and assessing performance, and concluded it has one reportable segment.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2020, the FASB issued amended guidance in ASC 848, Reference Rate Reform Facilitation of the Effects of Reference Rate Reform on Financial Reporting, and a subsequent update in January 2021, which provides optional expedients and exceptions to U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burden related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates. The expedients and exceptions provided by the amended guidance do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The guidance is effective upon issuance and to be applied prospectively from any date beginning March 12, 2020, through December 31, 2022. The amended guidance is not expected to have a material impact on the partnership’s consolidated financial statements.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue [Abstract]
Disaggregation of Revenue by Major Source	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues Service revenues Terminal services $ 1,987 $ 2,047 $ 6,196 $ 6,147 Trucking and other 1,001 1,162 3,186 3,420 Total service revenues 2,988 3,209 9,382 9,567 Leasing revenues (1) Storage and throughput services 11,564 12,520 35,389 36,090 Railcar transportation services 4,688 5,538 14,525 16,036 Terminal services 11 115 62 341 Total leasing revenues 16,263 18,173 49,976 52,467 Total revenues $ 19,251 $ 21,382 $ 59,358 $ 62,034 (1) Leasing revenues do not represent revenues recognized from contracts with customers under ASC 606, Revenue from Contracts with Customers , and are accounted for under ASC 842, Leases .
Changes in Unearned Revenue from Service Agreements	Amount Balance at January 1, 2021 $ 247 Revenue recognized included in beginning balance ( 247 ) Net additions 344 Balance at March 31, 2021 344 Revenue recognized included in beginning balance ( 344 ) Net additions 132 Balance at June 30, 2021 132 Revenue recognized included in beginning balance ( 132 ) Net additions 133 Balance at September 30, 2021 $ 133

Dispositions (Tables)

Dispositions (Tables)	9 Months Ended
	Sep. 30, 2021
Ethanol Plant In Ord, Nebraska [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Summary of Assets and Liabilities Disposed of	Total consideration $ 27,500 Identifiable assets and liabilities disposed of: Property and equipment, net 542 Operating lease right-of-use assets 1,811 Operating lease current liabilities ( 1,021 ) Operating lease long-term liabilities ( 790 ) Total identifiable net assets 542 Partners' deficit effect $ 26,958
Ethanol Plants In Hereford, Texas [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Summary of Assets and Liabilities Disposed of	Total consideration $ 10,000 Identifiable assets and liabilities disposed of: Property and equipment, net 2,494 Operating lease right-of-use assets 5,094 Operating lease current liabilities ( 976 ) Operating lease long-term liabilities ( 4,200 ) Asset retirement obligations ( 186 ) Total identifiable net assets 2,226 Liabilities assumed 163 Partners' deficit effect $ 7,611

Unit-Based Compensation (Tables

Unit-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2021
Unit-Based Compensation [Abstract]
Schedule of Non-vested Unit-based Award Activity	Non-Vested Units Weighted-Average Grant-Date Fair Value Weighted-Average Remaining Vesting Term (in years) Non-vested at December 31, 2020 47,620 $ 6.72 Granted 25,976 12.32 Forfeited ( 6,494 ) 12.32 Vested ( 47,620 ) 6.72 Non-vested at September 30, 2021 19,482 $ 12.32 0.8

Partners' Equity (Deficit) (Tab

Partners' Equity (Deficit) (Tables)	9 Months Ended
	Sep. 30, 2021
Partners' Equity (Deficit) [Abstract]
Schedule of Changes in Partners' Deficit	Changes in partners’ equity (deficit) are as follows (in thousands): Limited Partners Common Units- Public Common Units- Green Plains General Partner Total Balance, December 31, 2020 $ 124,823 $ ( 170,368 ) $ ( 917 ) $ ( 46,462 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,395 ) ( 1,390 ) ( 57 ) ( 2,842 ) Net income 5,264 5,248 215 10,727 Ord disposition - 26,419 539 26,958 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, March 31, 2021 128,771 ( 140,091 ) ( 220 ) ( 11,540 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,395 ) ( 1,390 ) ( 57 ) ( 2,842 ) Net income 5,054 5,038 206 10,298 Unit-based compensation, including general partner net contributions 80 - - 80 Balance, June 30, 2021 132,510 ( 136,443 ) ( 71 ) ( 4,004 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,397 ) ( 1,390 ) ( 57 ) ( 2,844 ) Net income 4,630 4,607 188 9,425 Unit-based compensation, including general partner net contributions 60 - 5 65 Balance, September 30, 2021 $ 135,803 $ ( 133,226 ) $ 65 $ 2,642 Limited Partners Common Units- Public Common Units- Green Plains General Partner Total Balance, December 31, 2019 $ 114,006 $ ( 188,304 ) $ ( 1,449 ) $ ( 75,747 ) Quarterly cash distributions to unitholders ($ 0.475 per unit) ( 5,498 ) ( 5,504 ) ( 278 ) ( 11,280 ) Net income 5,078 5,084 207 10,369 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, March 31, 2020 113,665 ( 188,724 ) ( 1,520 ) ( 76,579 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,389 ) ( 1,390 ) ( 57 ) ( 2,836 ) Net income 4,987 4,993 204 10,184 Unit-based compensation, including general partner net contributions 79 - - 79 Balance, June 30, 2020 117,342 ( 185,121 ) ( 1,373 ) ( 69,152 ) Quarterly cash distributions to unitholders ($ 0.12 per unit) ( 1,394 ) ( 1,391 ) ( 57 ) ( 2,842 ) Net income 5,058 5,042 206 10,306 Unit-based compensation, including general partner net contributions 81 - 7 88 Balance, September 30, 2020 $ 121,087 $ ( 181,470 ) $ ( 1,217 ) $ ( 61,600 )
Rollforward of the Number of Common Limited Partner Units Outstanding	Common Units- Common Units- Public Green Plains Total Units, December 31, 2020 11,621,623 11,586,548 23,208,171 Units issued under the LTIP 25,976 - 25,976 Units forfeited under the LTIP ( 6,494 ) - ( 6,494 ) Units, September 30, 2021 11,641,105 11,586,548 23,227,653
Schedule of Total Cash Distributions Declared	The total cash distributions declared for the three and nine months ended September 30, 2021 and 2020, are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 General partner distributions $ 206 $ 57 $ 320 $ 171 Limited partner common units - public 5,064 1,400 7,856 4,177 Limited partner common units - Green Plains 5,040 1,391 7,820 4,172 Total distributions to limited partners 10,104 2,791 15,676 8,349 Total distributions declared $ 10,310 $ 2,848 $ 15,996 $ 8,520

Earnings Per Unit (Tables)

Earnings Per Unit (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Unit [Abstract]
Schedule of Calculation of Earnings Per Limited Partner Unit - Basic and Diluted	Three Months Ended September 30, 2021 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 10,104 $ 206 $ 10,310 Earnings less than distributions ( 867 ) ( 18 ) ( 885 ) Total net income $ 9,237 $ 188 $ 9,425 Weighted-average units outstanding - basic and diluted 23,208 Earnings per limited partner unit - basic and diluted $ 0.40 Nine Months Ended September 30, 2021 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 15,676 $ 320 $ 15,996 Earnings in excess of distributions 14,165 289 14,454 Total net income $ 29,841 $ 609 $ 30,450 Weighted-average units outstanding - basic and diluted 23,177 Earnings per limited partner unit - basic and diluted $ 1.29 Three Months Ended September 30, 2020 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 2,791 $ 57 $ 2,848 Earnings in excess of distributions 7,309 149 7,458 Total net income $ 10,100 $ 206 $ 10,306 Weighted-average units outstanding - basic and diluted 23,161 Earnings per limited partner unit - basic and diluted $ 0.44 Nine Months Ended September 30, 2020 Limited Partner Common Units General Partner Total Net income: Distributions declared $ 8,349 $ 171 $ 8,520 Earnings in excess of distributions 21,893 446 22,339 Total net income $ 30,242 $ 617 $ 30,859 Weighted-average units outstanding - basic and diluted 23,145 Earnings per limited partner unit - basic and diluted $ 1.31

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2021
Components of Lease Expense	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Lease expense Operating lease expense (1) $ 3,276 $ 4,277 $ 10,631 $ 11,970 Variable lease expense (benefit) (2) 33 ( 196 ) ( 124 ) ( 221 ) Total lease expense $ 3,309 $ 4,081 $ 10,507 $ 11,749 (1) Amount includes an additional $ 0.2 million of accelerated lease expense due to the early termination of leased railcar assets for the three and nine months ended September 30, 2020. (2) Represents railcar lease abatements provided by the lessor when railcars are out of service during periods of maintenance or upgrade, offset by amounts incurred in excess of the minimum payments required for the handling and unloading of railcars for a certain lease.
Supplemental Cash Flow Information Related to Operating Leases	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,188 $ 3,918 $ 10,373 $ 11,279 Right-of-use assets obtained in exchange for lease obligations: Operating leases 2,959 6,310 12,641 11,504 Right-of-use assets and lease obligations derecognized due to lease modifications: Operating leases 1,838 7 1,889 7
Supplemental Balance Sheet Information Related to Operating Leases	September 30, 2021 December 31, 2020 Weighted average remaining lease term 4.3 years 4.5 years Weighted average discount rate 3.66 % 4.11 %
Schedule of Aggregate Minimum Lease Payments	Year Ending December 31, Amount 2021 $ 3,821 2022 13,390 2023 11,050 2024 9,023 2025 6,453 Thereafter 4,107 Total 47,844 Less: Present value discount ( 4,917 ) Operating lease liabilities $ 42,927
Components of Lease Revenue	Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Lease revenue Operating lease revenue $ 15,631 $ 17,613 $ 48,191 $ 51,744 Variable lease revenue (1) 632 544 1,785 571 Sublease revenue - 16 - 152 Total lease revenue $ 16,263 $ 18,173 $ 49,976 $ 52,467 (1) Represents amounts charged to Green Plains Trade under the storage and throughput agreement in excess of the initial rate of $ 0.05 per gallon, amounts delivered by Green Plains Trade and other customers in excess of various minimum volume commitments, and the difference between the contracted railcar volumetric capacity and the actual amount provided to Green Plains Trade during the period.
Schedule of Aggregate Minimum Agreement Payments	Year Ending December 31, Amount 2021 $ 168 2022 157 2023 - 2024 - 2025 - Thereafter - Total $ 325
Amended Storage And Throughput Agreement [Member]
Summary of Minimum Future Rental Revenue	Year Ending December 31, Amount 2021 $ 11,564 2022 46,257 2023 46,257 2024 46,257 2025 46,257 Thereafter 161,899 Total $ 358,491
Amended Rail Transportation Services Agreement [Member]
Summary of Minimum Future Rental Revenue	Year Ending December 31, Amount 2021 $ 4,667 2022 17,519 2023 12,765 2024 9,792 2025 6,395 Thereafter 312 Total $ 51,450

Basis of Presentation, Descri_3

Basis of Presentation, Description of Business and Summary of Significant Accounting Policies (Narrative) (Details) gal in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)segmentgal	Sep. 30, 2020USD ($)
Basis of Presentation and Significant Accounting Policies [Line Items]
Intangible assets impairment charges	$ 0	$ 0	$ 0	$ 0
Short-term lease expense	$ 0	$ 0	$ 0	$ 0
Ethanol production capacity (in gallons) | gal			960,000
Number of Reportable Segments | segment			1
Ethanol Segment [Member]
Basis of Presentation and Significant Accounting Policies [Line Items]
Percent of U.S. gasoline market			10.00%

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)mi	Sep. 30, 2020USD ($)
Disaggregation of Revenue [Line Items]
Revenues	$ 19,251	$ 21,382	$ 59,358	$ 62,034
Average trucking miles traveled from receipt point to delivery point | mi			100
Green Plains Trade Group LLC [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 18,300	$ 20,300	$ 56,100	$ 58,300
Minimum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Payment Terms			10 days
Percent of partnership's revenue, major customers benchmark	10.00%	10.00%	10.00%	10.00%
Maximum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Payment Terms			30 days

Revenue (Disaggregation of Reve

Revenue (Disaggregation of Revenue by Major Source) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues		$ 19,251	$ 21,382	$ 59,358	$ 62,034
Service Revenues [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,988	3,209	9,382	9,567
Terminal Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,987	2,047	6,196	6,147
Trucking And Other [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,001	1,162	3,186	3,420
Leasing Revenues [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	16,263	18,173	49,976	52,467
Storage And Throughput Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	11,564	12,520	35,389	36,090
Railcar Transportation Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	4,688	5,538	14,525	16,036
Terminal Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	$ 11	$ 115	$ 62	$ 341
[1]	Leasing revenues do not represent revenues recognized from contracts with customers under ASC 606, Revenue from Contracts with Customers , and are accounted for under ASC 842, Leases .

Revenue (Changes in Unearned Re

Revenue (Changes in Unearned Revenue From Service Agreements) (Details) - Service Agreements [Member] - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Beginning balance	$ 132	$ 344	$ 247
Revenue recognized included in beginning balance	(132)	(344)	(247)
Net additions	133	132	344
Ending balance	$ 133	$ 132	$ 344

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit, carrying value	$ 60	$ 100
Debt issuance costs	0.4	$ 2.3
Term Loan [Member]
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	60
Option to prepay per quarter	$ 1.5
Debt instrument, effective rate	8.13%
Payments on credit facility	$ 50
Prepayment due to excess cash	3
Periodic payments (including interest)	19.5
Debt outstanding balance	$ 60
Term Loan [Member] | Minimum [Member]
Debt Instrument [Line Items]
Consolidated net leverage ratio	1.10
Term Loan [Member] | Maximum [Member]
Debt Instrument [Line Items]
Consolidated net leverage ratio	2.50
Term Loan [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Variable floor rate	0.00%
Interest rate, basis spread on variable rate, percentage	8.00%
BlackRock [Member]
Debt Instrument [Line Items]
Debt purchased	$ 50
Storage Assets Located Adjacent To Ord Plant [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Payments on credit facility	$ 27.5

Dispositions (Narrative) (Detai

Dispositions (Narrative) (Details) - USD ($) $ in Thousands	Mar. 22, 2021	Dec. 28, 2020
Storage Assets Located Adjacent To Ord Plant [Member]
Business Acquisition [Line Items]
Total consideration received	$ 27,500
Ethanol Plant In Ord, Nebraska [Member]
Business Acquisition [Line Items]
Total consideration received	$ 27,500
Ethanol Plants In Hereford, Texas [Member]
Business Acquisition [Line Items]
Total consideration received		$ 10,000

Dispositions (Summary of Assets

Dispositions (Summary of Assets and Liabilities Disposed of) (Details) - USD ($) $ in Thousands	Mar. 22, 2021	Dec. 28, 2020
Storage Assets Located Adjacent To Ord Plant [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration	$ 27,500
Property and equipment, net	542
Operating lease right-of-use assets	1,811
Operating lease current liabilities	(1,021)
Operating lease long-term liabilities	(790)
Total identifiable net assets	542
Partners' deficit effect	$ 26,958
Ethanol Plants In Hereford, Texas [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration		$ 10,000
Property and equipment, net		2,494
Operating lease right-of-use assets		5,094
Operating lease current liabilities		(976)
Operating lease long-term liabilities		(4,200)
Asset retirement obligations		(186)
Total identifiable net assets		2,226
Liabilities assumed		163
Partners' deficit effect		$ 7,611

Unit-Based Compensation (Narrat

Unit-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	2,500,000		2,500,000
Limited Partner Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost (benefit)	$ 60	$ 81	$ 219	$ 239
Unrecognized compensation costs	$ 180		$ 180

Unit-Based Compensation (Schedu

Unit-Based Compensation (Schedule of Non-vested Unit-based Award Activity) (Details) - Limited Partner Units [Member]	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Units, Non-vested at beginning of period | shares	47,620
Non-Vested Units, Granted | shares	25,976
Non-Vested Units, Forfeited | shares	(6,494)
Non-Vested Units, Vested | shares	(47,620)
Non-Vested Units, Non-vested at end of period | shares	19,482
Weighted-Average Grant-Date Fair Value, Non-vested at beginning of period | $ / shares	$ 6.72
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	12.32
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	12.32
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	6.72
Weighted-Average Grant-Date Fair Value, Non-vested at end of period | $ / shares	$ 12.32
Weighted-Average Remaining Vesting Term (in years)	9 months 18 days

Partners' Equity (Deficit) (Nar

Partners' Equity (Deficit) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands

Oct. 19, 2021

Aug. 13, 2021

May 14, 2021

Feb. 12, 2021

Sep. 30, 2021

Jun. 30, 2021

Mar. 31, 2021

Sep. 30, 2020

Jun. 30, 2020

Mar. 31, 2020

Sep. 30, 2021

Dec. 31, 2020

Limited Partners' Capital Account [Line Items]

Payment Date

Aug. 13, 2021

May 14, 2021

Feb. 12, 2021

Total distributions paid

$ 2,800

$ 2,800

$ 2,800

$ 2,844

$ 2,842

$ 2,842

$ 2,842

$ 2,836

$ 11,280

Distribution per unit

$ 0.46

Quarterly distribution paid, per unit

$ 0.12

$ 0.12

$ 0.12

$ 0.12

$ 0.12

$ 0.12

$ 0.12

$ 0.12

$ 0.475

Declaration Date

Oct. 19, 2021

Jul. 22, 2021

Apr. 22, 2021

Jan. 21, 2021

Distribution Made To Limited Partner And General Partner, Threshold In Days After End Of Each Calendar Quarter, Distribution Payment

45 days

Record Date

Aug. 6, 2021

May 7, 2021

Feb. 5, 2021

Payable Date

Nov. 12, 2021

Close Of Business Date

Nov. 5, 2021

Maximum [Member]

Limited Partners' Capital Account [Line Items]

Incentive distribution, percentage of available cash distributed from operating surplus

48.00%

General Partner [Member]

Limited Partners' Capital Account [Line Items]

Total distributions paid

$ 57

$ 57

$ 57

$ 57

$ 57

$ 278

Subsequent Event [Member]

Limited Partners' Capital Account [Line Items]

Distribution Made to Limited Partners and General Partner, Cash Distributions Declared

$ 10,300

Distribution Made to Limited Partner, Distributions Declared, Per Unit

$ 0.435

Partners' Equity (Deficit) (Sch

Partners' Equity (Deficit) (Schedule of Changes in Partners' Deficit) (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 13, 2021	May 14, 2021	Feb. 12, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance, Beginning period				$ (4,004)	$ (11,540)	$ (46,462)	$ (69,152)	$ (76,579)	$ (75,747)	$ (46,462)	$ (75,747)
Quarterly cash distributions to unitholders	$ (2,800)	$ (2,800)	$ (2,800)	(2,844)	(2,842)	(2,842)	(2,842)	(2,836)	(11,280)
Net income				9,425	10,298	10,727	10,306	10,184	10,369	30,450	30,859
Ord disposition						26,958
Unit-based compensation, including general partner net contributions				65	80	79	88	79	79
Balance, Ending period				$ 2,642	$ (4,004)	$ (11,540)	$ (61,600)	$ (69,152)	$ (76,579)	2,642	(61,600)
Quarterly distribution paid, per unit	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.475
General Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance, Beginning period				$ (71)	$ (220)	$ (917)	$ (1,373)	$ (1,520)	$ (1,449)	(917)	(1,449)
Quarterly cash distributions to unitholders				(57)	(57)	(57)	(57)	(57)	(278)
Net income				188	206	215	206	204	207	609	617
Ord disposition						539
Unit-based compensation, including general partner net contributions				5			7
Balance, Ending period				65	(71)	(220)	(1,217)	(1,373)	(1,520)	65	(1,217)
Common Units - Public [Member] | Limited Partners [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance, Beginning period				132,510	128,771	124,823	117,342	113,665	114,006	124,823	114,006
Quarterly cash distributions to unitholders				(1,397)	(1,395)	(1,395)	(1,394)	(1,389)	(5,498)
Net income				4,630	5,054	5,264	5,058	4,987	5,078
Unit-based compensation, including general partner net contributions				60	80	79	81	79	79
Balance, Ending period				135,803	132,510	128,771	121,087	117,342	113,665	135,803	121,087
Common Units - Green Plains [Member] | Limited Partners [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance, Beginning period				(136,443)	(140,091)	(170,368)	(185,121)	(188,724)	(188,304)	(170,368)	(188,304)
Quarterly cash distributions to unitholders				(1,390)	(1,390)	(1,390)	(1,391)	(1,390)	(5,504)
Net income				4,607	5,038	5,248	5,042	4,993	5,084
Ord disposition						26,419
Balance, Ending period				$ (133,226)	$ (136,443)	$ (140,091)	$ (181,470)	$ (185,121)	$ (188,724)	$ (133,226)	$ (181,470)

Partners' Equity (Deficit) (Rol

Partners' Equity (Deficit) (Rollforward of the Number of Common Limited Partner Units Outstanding) (Details)	9 Months Ended
	Sep. 30, 2021shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	23,208,171
Units issued under the LTIP	25,976
Units forfeited under the LTIP	(6,494)
Units, End of period	23,227,653
Common Units - Public [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	11,621,623
Units issued under the LTIP	25,976
Units forfeited under the LTIP	(6,494)
Units, End of period	11,641,105
Common Units - Green Plains [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	11,586,548
Units, End of period	11,586,548

Partners' Equity (Deficit) (S_2

Partners' Equity (Deficit) (Schedule of Total Cash Distributions Declared) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Distribution Made to Limited Partner [Line Items]
Total distributions declared	$ 10,310	$ 2,848	$ 15,996	$ 8,520
General Partner [Member]
Distribution Made to Limited Partner [Line Items]
Total distributions declared	206	57	320	171
Limited Partners [Member] | Common Units - Public [Member]
Distribution Made to Limited Partner [Line Items]
Total distributions declared	5,064	1,400	7,856	4,177
Limited Partners [Member] | Common Units - Green Plains [Member]
Distribution Made to Limited Partner [Line Items]
Total distributions declared	5,040	1,391	7,820	4,172
Limited Partners [Member] | Common Units [Member]
Distribution Made to Limited Partner [Line Items]
Total distributions declared	$ 10,104	$ 2,791	$ 15,676	$ 8,349

Earnings Per Unit (Narrative) (

Earnings Per Unit (Narrative) (Details)	9 Months Ended
	Sep. 30, 2021shares
Earnings Per Unit [Abstract]
Potentially dilutive common or subordinated units outstanding	0

Earnings Per Unit (Schedule of

Earnings Per Unit (Schedule of Calculation of Earnings Per Limited Partner Unit - Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Unit [Line Items]
Distributions declared	$ 10,310			$ 2,848			$ 15,996	$ 8,520
Earnings less than distributions	(885)
Earnings in excess of distributions				7,458			14,454	22,339
Total net income	9,425	$ 10,298	$ 10,727	10,306	$ 10,184	$ 10,369	30,450	30,859
General Partner [Member]
Earnings Per Unit [Line Items]
Distributions declared	206			57			320	171
Earnings less than distributions	(18)
Earnings in excess of distributions				149			289	446
Total net income	188	$ 206	$ 215	206	$ 204	$ 207	609	617
Common Units [Member] | Limited Partners [Member]
Earnings Per Unit [Line Items]
Distributions declared	10,104			2,791			15,676	8,349
Earnings less than distributions	(867)
Earnings in excess of distributions				7,309			14,165	21,893
Total net income	$ 9,237			$ 10,100			$ 29,841	$ 30,242
Weighted-average units outstanding - basic and diluted	23,208			23,161			23,177	23,145
Earnings per limited partner unit - basic and diluted	$ 0.40			$ 0.44			$ 1.29	$ 1.31

Commitments and Contingencies_2

Commitments and Contingencies (Narrative) (Details) gal in Millions	Mar. 22, 2021gal	Mar. 21, 2021gal	Jul. 01, 2020$ / gal	Jun. 30, 2021gal	Sep. 30, 2021$ / galgal
Green Plains Trade [Member]
Other Commitments [Line Items]
Quarterly minimum volume commitment, throughput capacity (in gallons)	217.7	232.5			217.7
Fee-based Storage and Throughput Agreement [Member] | Green Plains Trade [Member]
Other Commitments [Line Items]
Agreement rate, price per gallon | $ / gal			0.05		0.05312
Quarterly minimum volume commitment, throughput capacity (in gallons)		232.5		217.7
Lessor, Operating Lease, Term of Contract					7 years 9 months 18 days
Lessor, Operating Lease, Renewal Term					1 year
Minimum [Member]
Other Commitments [Line Items]
Operating lease remaining lease term					1 year
Maximum [Member]
Other Commitments [Line Items]
Operating lease remaining lease term					10 years 1 month 6 days
Amended Rail Transportation Services Agreement [Member]
Other Commitments [Line Items]
Lessor, Operating Lease, Term of Contract					3 years 9 months 18 days
Lessor, Operating Lease, Renewal Term					1 year

Commitments and Contingencies_3

Commitments and Contingencies (Components of Lease Expense) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Commitments and Contingencies [Abstract]
Operating lease expense	[1]	$ 3,276	$ 4,277	$ 10,631	$ 11,970
Variable lease expense	[2]	33
Variable lease (benefit)	[2]		(196)	(124)	(221)
Total lease expense		$ 3,309	4,081	$ 10,507	11,749
Accelerated operating lease expense			$ 200		$ 200
[1]	Amount includes an additional $ 0.2 million of accelerated lease expense due to the early termination of leased railcar assets for the three and nine months ended September 30, 2020.
[2]	Represents railcar lease abatements provided by the lessor when railcars are out of service during periods of maintenance or upgrade, offset by amounts incurred in excess of the minimum payments required for the handling and unloading of railcars for a certain lease.

Commitments and Contingencies_4

Commitments and Contingencies (Supplemental Cash Flow Information Related to Operating Leases) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Commitments and Contingencies [Abstract]
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases	$ 3,188	$ 3,918	$ 10,373	$ 11,279
Right-of-use assets obtained in exchange for lease obligations: Operating leases	2,959	6,310	12,641	11,504
Right-of-use assets and lease obligations derecognized due to lease modifications: Operating leases	$ 1,838	$ 7	$ 1,889	$ 7

Commitments and Contingencies_5

Commitments and Contingencies (Supplemental Balance Sheet Information Related to Operating Leases) (Details)	Sep. 30, 2021	Dec. 31, 2020
Commitments and Contingencies [Abstract]
Weighted average remaining lease term	4 years 3 months 18 days	4 years 6 months
Weighted average discount rate	3.66%	4.11%

Commitments and Contingencies_6

Commitments and Contingencies (Schedule of Aggregate Minimum Lease Payments) (Details) $ in Thousands	Sep. 30, 2021USD ($)
Commitments and Contingencies [Abstract]
2021	$ 3,821
2022	13,390
2023	11,050
2024	9,023
2025	6,453
Thereafter	4,107
Total	47,844
Less: Present value discount	(4,917)
Operating lease liabilities	$ 42,927

Commitments and Contingencies_7

Commitments and Contingencies (Components of Lease Revenue) (Details) $ in Thousands		Jul. 01, 2020$ / gal	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)$ / gal	Sep. 30, 2020USD ($)
Related Party Transaction [Line Items]
Operating lease revenue			$ 15,631	$ 17,613	$ 48,191	$ 51,744
Variable lease revenue	[1]		632	544	1,785	571
Sublease revenue				16		152
Total lease revenue			$ 16,263	$ 18,173	$ 49,976	$ 52,467
Fee-based Storage and Throughput Agreement [Member] | Green Plains Trade [Member]
Related Party Transaction [Line Items]
Agreement initial rate, price per gallon | $ / gal		0.05			0.05312
[1]	Represents amounts charged to Green Plains Trade under the storage and throughput agreement in excess of the initial rate of $ 0.05 per gallon, amounts delivered by Green Plains Trade and other customers in excess of various minimum volume commitments, and the difference between the contracted railcar volumetric capacity and the actual amount provided to Green Plains Trade during the period.

Commitments and Contingencies_8

Commitments and Contingencies (Summary of Minimum Future Rental Revenue) (Details) $ in Thousands	Sep. 30, 2021USD ($)
Amended Storage And Throughput Agreement [Member]
Lessor, Lease, Description [Line Items]
2021	$ 11,564
2022	46,257
2023	46,257
2024	46,257
2025	46,257
Thereafter	161,899
Total	358,491
Amended Rail Transportation Services Agreement [Member]
Lessor, Lease, Description [Line Items]
2021	4,667
2022	17,519
2023	12,765
2024	9,792
2025	6,395
Thereafter	312
Total	$ 51,450

Commitments and Contingencies_9

Commitments and Contingencies (Schedule of Aggregate Minimum Agreement Payments) (Details) $ in Thousands	Sep. 30, 2021USD ($)
Commitments and Contingencies [Abstract]
2021	$ 168
2022	157
2023
2024
2025
Thereafter
Total	$ 325

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details) gal in Millions, $ in Millions	Mar. 22, 2021gal	Mar. 21, 2021gal	Jul. 01, 2020$ / gal	Sep. 30, 2021USD ($)$ / galitemgal	Jun. 30, 2021gal	Sep. 30, 2020USD ($)$ / galitemgal	Sep. 30, 2021USD ($)$ / galitemgal	Sep. 30, 2020USD ($)$ / galitemgal	Dec. 31, 2022gal
Related Party Transaction [Line Items]
Shared services expenses				$ 0.8		$ 0.8	$ 2.4	$ 2.5
Cumulative minimum volume deficiency credits				7.2			7.2
Minimum volume commitment credit, expired in period							2.4
Distribution to Green Plains				1.4		1.5	4.3	8.7
Fee-based Trucking Transportation and Terminal Services Agreements [Member]
Related Party Transaction [Line Items]
Revenue from related parties				2		2.2	6.2	6.3
Credit Expiring December 31, 2021 [Member]
Related Party Transaction [Line Items]
Cumulative minimum volume deficiency credits				1.1			1.1
Credit Expiring March 31, 2022 [Member]
Related Party Transaction [Line Items]
Cumulative minimum volume deficiency credits				2.8			2.8
Credit Expiring June 30, 2022 [Member]
Related Party Transaction [Line Items]
Cumulative minimum volume deficiency credits				1.4			1.4
Credit Expiring September 30, 2022 [Member]
Related Party Transaction [Line Items]
Cumulative minimum volume deficiency credits				1.9			$ 1.9
Green Plains Trade [Member]
Related Party Transaction [Line Items]
Quarterly minimum volume commitment, throughput capacity (in gallons) | gal	217.7	232.5					217.7
Minimum volume commitment, throughput capacity, per gallon | $ / gal			0.05				0.05312
Minimum volume commitment credit received				1.9
Green Plains Trade [Member] | Fee-based Storage and Throughput and Rail Transportation Agreements [Member]
Related Party Transaction [Line Items]
Revenue from related parties				$ 16.2		$ 18.1	$ 49.9	$ 52
Green Plains Trade [Member] | Fee-based Storage and Throughput Agreement [Member]
Related Party Transaction [Line Items]
Service Agreement, Throughput Of Ethanol, Price Per Gallon | $ / gal			0.05				0.05312
Quarterly minimum volume commitment, throughput capacity (in gallons) | gal		232.5			217.7
Green Plains Trade [Member] | Fee-based Rail Transportation Services Agreement [Member]
Related Party Transaction [Line Items]
Service Agreement, Railcar Volumetric Capacity, Monthly Fee, Price Per Gallon | $ / gal				0.0228		0.0226	0.0230	0.0220
Railcar volumetric capacity (in gallons) | gal				68.6		81.5	70.3	80.4
Number of railcars in fleet | item				2,300		2,820	2,300	2,820
Green Plains Trade [Member] | Fee-based Rail Transportation Services Agreement, Logistical Operations Management And Other Services [Member]
Related Party Transaction [Line Items]
Service Agreement, Logistical Operations Management And Other Services Monthly Fee, Price Per Gallon | $ / gal							0.0013
Railcar volumetric capacity (in gallons) | gal				0.7		0.7	0.7	2
Green Plains Trade [Member] | Birmingham Terminal Services Agreement [Member] | Scenario, Forecast [Member]
Related Party Transaction [Line Items]
Monthly minimum volume commitment throughput capacity (in gallons) | gal									8.3

Equity Method Investment (Narra

Equity Method Investment (Narrative) (Details)	9 Months Ended
	Sep. 30, 2021USD ($)itembbl	Dec. 31, 2020USD ($)
Related Party Transaction [Line Items]
Investment in equity method investee	$ 4,511,000	$ 3,994,000
Accounts receivable for project management fees and construction costs paid on behalf of the joint venture	$ 0	$ 25,000
NLR Energy Logistics LLC [Member]
Related Party Transaction [Line Items]
Joint venture, partnership ownership percentage	50.00%
Delek Renewables LLC [Member] | NLR Energy Logistics LLC [Member]
Related Party Transaction [Line Items]
Joint venture, partnership ownership percentage	50.00%
NLR Energy Logistics LLC [Member]
Related Party Transaction [Line Items]
Number of train car units | item	110
Number of barrels of storage | bbl	100,000
Investment in equity method investee	$ 4,500,000