Enviva (EVVAQ) 10-Q 5 Nov 20 2020 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2020	Oct. 30, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-37363
Entity Registrant Name	Enviva Partners, LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4097730
Entity Address, Address Line One	7200 Wisconsin Ave.
Entity Address, Address Line Two	Suite 1000
Entity Address, City or Town	Bethesda,
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20814
City Area Code	(301)
Local Phone Number	657-5560
Title of 12(b) Security	Common Units
Trading Symbol	EVA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		39,767,468
Entity Central Index Key	0001592057
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,346	$ 9,053
Accounts receivable	86,930	72,421
Inventories	61,978	32,998
Prepaid expenses and other current assets	14,845	5,617
Total current assets	176,327	120,089
Property, Plant and Equipment, Net	1,061,870	751,780
Operating Lease, Right-of-Use Asset	52,417	32,830
Goodwill	101,303	85,615
Other long-term assets	11,734	4,504
Total assets	1,403,651	994,818
Current liabilities:
Accounts payable	27,182	18,985
Deferred consideration for drop-down due to related-party	0	40,000
Current portion of interest payable	12,136	3,427
Current portion of long-term debt and finance lease obligations	11,611	6,590
Total current liabilities	129,688	128,372
Long-term debt and finance lease obligations	893,837	596,430
Long-term operating lease liabilities	50,891	33,469
Deferred tax liability, net	13,801	0
Other long-term liabilities	13,042	3,971
Total liabilities	1,101,259	762,242
Commitments and contingencies
Limited partners:
Limited Partners Capital Account Public Common Unit Holders	447,690	300,184
Limited Partners Capital Account Sponsor Common Unit Holders	55,182	82,300
General partner (no outstanding units)	(152,280)	(101,739)
Accumulated other comprehensive income	(8)	23
Total Enviva Partners, LP partners’ capital	350,584	280,768
Noncontrolling interest	(48,192)	(48,192)
Total partners' capital	302,392	232,576
Total liabilities and partners’ capital	1,403,651	994,818
Accounts receivable, net	11,228	0
Due to Related Parties, Current, Net	0	304
Accrued Liabilities and Other Liabilities	$ 78,759	$ 59,066

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Sep. 30, 2020	Dec. 31, 2019
Limited Partner-Common Units— Public
Limited partner units issued	26,181,093	19,870,436
Limited partner units outstanding	26,181,093	19,870,436
Limited Partner-Common Units— Sponsor
Limited partner units issued	13,586,375	13,586,375
Limited partner units outstanding	13,586,375	13,586,375
General Partner Interest
General partner units outstanding	0	0

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net revenue	$ 225,580,000	$ 157,405,000	$ 597,769,000	$ 483,853,000
Depreciation and amortization	20,237,000	12,946,000	48,863,000	35,112,000
Total cost of goods sold	200,009,000	130,939,000	517,212,000	430,973,000
Gross margin	25,571,000	26,466,000	80,557,000	52,880,000
General and administrative expenses	6,425,000	361,000	10,284,000	5,669,000
Related-party management services agreement fees	6,196,000	7,439,000	20,832,000	22,998,000
Total general and administrative expenses	12,621,000	7,800,000	31,116,000	28,667,000
Income from operations	12,950,000	18,666,000	49,441,000	24,213,000
Other (expense) income:
Interest expense	(11,950,000)	(9,872,000)	(32,468,000)	(28,701,000)
Other income, net	136,000	58,000	267,000	616,000
Total other expense, net	(11,814,000)	(9,814,000)	(32,201,000)	(28,085,000)
Net income (loss) before income tax benefit	1,136,000	8,852,000	17,240,000	(3,872,000)
Income tax benefit	(275,000)	0	(275,000)	0
Net income (loss)	$ 1,411,000	$ 8,852,000	17,515,000	(3,872,000)
Weighted-average number of limited partner common units outstanding:
Gain (Loss) on Disposition of Assets			$ (1,683,000)	$ (562,000)
Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax	$ (0.18)	$ 0.15	$ (0.11)	$ (0.44)
Weighted-average common units outstanding—basic and diluted (in units)	39,767	33,457	35,814	31,230
Distribution Per Unit (in dollars per unit)	$ 0.7750	$ 0.6700	$ 2.2200	$ 1.9750
Product sales
Net revenue	$ 216,187,000	$ 155,188,000	$ 569,691,000	$ 478,989,000
Cost of goods sold	179,772,000	117,993,000	468,349,000	395,861,000
Other revenue
Net revenue	$ 9,393,000	$ 2,217,000	$ 28,078,000	$ 4,864,000

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,411	$ 8,852	$ 17,515	$ (3,872)
Other comprehensive loss, net of tax of $0:
Net unrealized gains (losses) on cash flow hedges	0	13	0	(148)
Reclassification of net gains on cash flow hedges realized into net income (loss)	0	(59)	(22)	(252)
Currency translation adjustment	(9)	4	(9)	4
Total other comprehensive loss	(9)	(42)	(31)	(396)
Total comprehensive income (loss)	$ 1,402	$ 8,810	$ 17,484	$ (4,268)

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Changes in Partners’ Capital - USD ($) $ in Thousands	Total	Accumulated Other Comprehensive Income (Loss)	General Partner Interest	Common Units— Public	Common Units— Sponsor	Noncontrolling Interest	General Partner Interests plus Common Units-Public
Balance at the beginning of the period at Dec. 31, 2018	$ 146,716	$ 439	$ (133,687)	$ 207,612	$ 72,352
Balance at the beginning of the period (in units) at Dec. 31, 2018				14,573,000	11,905,000
Changes in Partners’ Capital
Distributions to unitholders, distribution equivalent and incentive distribution rights	(19,559)		(1,671)	$ (10,269)	$ (7,619)
Issuance of units through Long-Term Incentive Plan			(2,129)	$ 659			$ (1,470)
Issuance of units through Long-Term Incentive Plan (in units)				94,000
Issuance of common units, net	(96,661)			$ (96,661)
Issuance of common units, net (in units)				3,509,000
Non-cash Management Services Agreement expenses	2,208		136	$ 2,072
Other comprehensive loss	(162)	(162)
Net income (loss)	(8,923)		1,671	(5,880)	(4,714)
Balance at the end of the period at Mar. 31, 2019	215,471	295	(135,680)	$ 290,845	$ 60,011
Balance at the end of the period (in units) at Mar. 31, 2019				18,176,000	11,905,000
Balance at the beginning of the period at Dec. 31, 2018	146,716	439	(133,687)	$ 207,612	$ 72,352
Balance at the beginning of the period (in units) at Dec. 31, 2018				14,573,000	11,905,000
Changes in Partners’ Capital
Other comprehensive loss	(396)
Net income (loss)	(3,872)
Balance at the end of the period at Sep. 30, 2019	251,883	61	(106,530)	$ 314,258	$ 92,286
Balance at the end of the period (in units) at Sep. 30, 2019				19,870,000	13,586,000
Changes in Partners’ Capital
Cumulative effect of accounting change - derivative instruments	0	(18)		$ (10)	$ 8
Balance at the beginning of the period at Mar. 31, 2019	215,471	295	(135,680)	$ 290,845	$ 60,011
Balance at the beginning of the period (in units) at Mar. 31, 2019				18,176,000	11,905,000
Changes in Partners’ Capital
Distributions to unitholders, distribution equivalent and incentive distribution rights	(24,754)		(2,271)	$ (13,720)	$ (8,763)
Issuance of units through Long-Term Incentive Plan			247	$ (287)			(40)
Issuance of units through Long-Term Incentive Plan (in units)				2,000
Issuance of common units, net	(49,641)			$ (49,641)
Issuance of common units, net (in units)				1,692,000
Non-cash Management Services Agreement expenses	12,239		11,226	$ 1,013
Other comprehensive loss	(192)	(192)
Net income (loss)	(3,801)		2,271	(3,609)	(2,463)
Balance at the end of the period at Jun. 30, 2019	253,157	103	(121,422)	$ 323,883	$ 98,785
Balance at the end of the period (in units) at Jun. 30, 2019				19,870,000	13,586,000
Changes in Partners’ Capital
Partners' Capital Account, Units, Acquisitions					1,681,000
Partners' Capital Account, Acquisitions	(50,000)				$ (50,000)
Excess consideration over Enviva Wilmington Holdings, LLC net assets and initial recognition of its noncontrolling interest	(46,909)		1,283			$ 48,192
Partners Capital Account Reimbursable Charges	1,502		1,502
Noncontrolling interest	(48,192)
Distributions to unitholders, distribution equivalent and incentive distribution rights	(25,517)		(2,772)	$ (13,776)	(8,969)
Issuance of units through Long-Term Incentive Plan			(215)	$ 215			0
Issuance of units through Long-Term Incentive Plan (in units)				0
Partners Capital Account Cost of Units Issued	(24)
Non-cash Management Services Agreement expenses	8,469		8,119	$ 350
Other comprehensive loss	(42)	(42)
Net income (loss)	8,852		2,772	3,610	2,470
Balance at the end of the period at Sep. 30, 2019	251,883	61	(106,530)	$ 314,258	$ 92,286
Balance at the end of the period (in units) at Sep. 30, 2019				19,870,000	13,586,000
Changes in Partners’ Capital
Partners Capital Account Reimbursable Charges	6,988		6,988
Noncontrolling interest	(48,192)
Noncontrolling interest	(48,192)
Balance at the beginning of the period at Dec. 31, 2019	232,576	23	(101,739)	$ 300,184	$ 82,300	(48,192)
Balance at the beginning of the period (in units) at Dec. 31, 2019				19,870,436	13,586,375
Changes in Partners’ Capital
Distributions to unitholders, distribution equivalent and incentive distribution rights	(27,259)		(3,289)	$ (14,798)	$ (9,172)
Issuance of units through Long-Term Incentive Plan			(3,356)	$ (371)			(3,727)
Issuance of units through Long-Term Incentive Plan (in units)				149,000
Non-cash Management Services Agreement expenses	5,642		3,484	$ 2,158
Other comprehensive loss	(17)	(17)
Net income (loss)	7,633		3,289	2,585	1,759
Balance at the end of the period at Mar. 31, 2020	214,848	6	(101,611)	$ 289,758	$ 74,887	(48,192)
Balance at the end of the period (in units) at Mar. 31, 2020				20,019,000	13,586,000
Balance at the beginning of the period at Dec. 31, 2019	232,576	23	(101,739)	$ 300,184	$ 82,300	(48,192)
Balance at the beginning of the period (in units) at Dec. 31, 2019				19,870,436	13,586,375
Changes in Partners’ Capital
Other comprehensive loss	(31)
Net income (loss)	17,515
Balance at the end of the period at Sep. 30, 2020	302,392	(8)	(152,280)	$ 447,690	$ 55,182	(48,192)
Balance at the end of the period (in units) at Sep. 30, 2020				26,181,093	13,586,375
Balance at the beginning of the period at Mar. 31, 2020	214,848	6	(101,611)	$ 289,758	$ 74,887	(48,192)
Balance at the beginning of the period (in units) at Mar. 31, 2020				20,019,000	13,586,000
Changes in Partners’ Capital
Distributions to unitholders, distribution equivalent and incentive distribution rights	(27,474)		(3,458)	$ (14,777)	$ (9,239)
Issuance of units through Long-Term Incentive Plan			(160)	$ 17			(143)
Issuance of units through Long-Term Incentive Plan (in units)				6,000
Issuance of common units, net	(190,813)			$ (190,813)
Issuance of common units, net (in units)				6,154,000
Non-cash Management Services Agreement expenses	3,970		1,872	$ 2,098
Other comprehensive loss	(5)	(5)
Net income (loss)	8,471		3,458	3,015	1,998
Balance at the end of the period at Jun. 30, 2020	390,480	1	(99,899)	$ 470,924	$ 67,646	(48,192)
Balance at the end of the period (in units) at Jun. 30, 2020				26,179,000	13,586,000
Changes in Partners’ Capital
Distributions to unitholders, distribution equivalent and incentive distribution rights	(39,219)		(7,471)	$ (21,354)	$ (10,394)
Issuance of units through Long-Term Incentive Plan			(63)	$ 39			$ (24)
Issuance of units through Long-Term Incentive Plan (in units)				2,000
Issuance of common units, net	(228)			$ (228)
Non-cash Management Services Agreement expenses	11,811		9,512	2,299
Other comprehensive loss	(9)	(9)
Net income (loss)	1,411		7,471	(3,990)	(2,070)
Balance at the end of the period at Sep. 30, 2020	302,392	$ (8)	(152,280)	$ 447,690	$ 55,182	$ (48,192)
Balance at the end of the period (in units) at Sep. 30, 2020				26,181,093	13,586,375
Changes in Partners’ Capital
Excess consideration over Enviva Pellets Greenwood, Holdings II, LLC net assets	(61,830)		$ (61,830)
Noncontrolling interest	$ (48,192)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 17,515	$ (3,872)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	49,801	35,747
MSA Fee Waivers	13,963	18,749
Amortization of debt issuance costs, debt premium and original issue discounts	1,471	899
Unit-based compensation	6,602	3,835
Fair value changes in derivatives	(3,022)	(2,275)
Unrealized (losses) gains on foreign currency transactions, net	73	58
Change in operating assets and liabilities:
Accounts and insurance receivables	(14,361)	9,492
Related-party receivables	(6,621)	1,392
Prepaid expenses and other current and long-term assets	12,238	(212)
Inventories	(15,952)	(10,679)
Derivatives	(250)	1,514
Accounts payable, accrued liabilities and other current liabilities	16,771	(2,247)
Related-party payables	0	(12,025)
Accrued interest	4,820	6,420
Deferred revenue	(4,139)	0
Operating lease liabilities	(3,832)	(3,715)
Other long-term liabilities	(17,570)	(164)
Net cash provided by operating activities	59,190	43,479
Cash flows from investing activities:
Purchases of property, plant and equipment	(76,887)	(81,484)
Payments in relation to the Greenwood Drop-Down, net of cash acquired	(129,631)	0
Payment in relation to the Georgia Biomass Acquisition, net of cash acquired	(163,299)	0
Other	(3,769)	1,502
Net cash used in investing activities	(373,586)	(154,682)
Cash flows from financing activities:
Proceeds from senior secured revolving credit facility, net	105,000	112,000
Proceeds from debt issuance	155,625	0
Principal payments on other long-term debt and finance lease obligations	(3,708)	(2,026)
Cash paid related to debt issuance and deferred offering costs	(3,838)	0
Proceeds from common unit issuances, net	191,113	96,822
Distributions to unitholders, distribution equivalent rights and incentive distribution rights holder	(93,634)	(69,526)
Payment for withholding tax associated with Long-Term Incentive Plan vesting	(3,869)	(1,870)
Net cash provided by financing activities	306,689	111,100
Net decrease in cash, cash equivalents and restricted cash	(7,707)	(103)
Cash, cash equivalents and restricted cash, beginning of period	9,053	2,460
Cash, cash equivalents and restricted cash, end of period	1,346	2,357
Non-cash investing and financing activities:
Property, plant and equipment acquired included in liabilities	18,270	4,391
Supplemental cash flow information:
Interest paid, net of capitalized interest	22,666	19,977
Hamlet Transaction
Payment in relation to the Hamlet Drop-Down	0	(74,700)
Payments for deferred consideration	(40,000)	0
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	0	50,000
Wilmington, LLC Drop-Down
Payments for deferred consideration	0	(24,300)
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 0	$ 49,700

Description of Business and Bas

Description of Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Description of Business Enviva Partners, LP, together with its subsidiaries (“we,” “us,” “our” or the “Partnership”) supplies utility-grade wood pellets primarily to major power generators under long-term, take-or-pay off-take contracts. We procure wood fiber and process it into utility-grade wood pellets and load the finished wood pellets into railcars, trucks and barges for transportation to deep-water marine terminals, where they are received, stored and ultimately loaded onto oceangoing vessels for delivery under long-term, take-or-pay off-take contracts to our customers principally in the United Kingdom (the “U.K.”), Europe and increasingly Japan. We own and operate nine industrial-scale wood pellet production plants located in the Mid-Atlantic and Gulf Coast regions of the United States. In addition to the volumes from our plants, we also procure wood pellets from third parties. Wood pellets are exported from our wholly owned deep-water marine terminal at the Port of Chesapeake, Virginia and terminal assets at the Port of Wilmington, North Carolina (the “Wilmington terminal”) and from third-party deep-water marine terminals in Mobile, Alabama, Panama City, Florida and Savannah, Georgia under a short-term contract, a long-term contract and a lease and associated terminal services agreement, respectively. Basis of Presentation The unaudited financial statements and notes have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments and accruals necessary for a fair presentation have been included. All such adjustments and accruals are of a normal and recurring nature unless disclosed otherwise. All intercompany balances and transactions have been eliminated in consolidation. The results reported in the financial statements are not necessarily indicative of the results that may be reported for the entire year. The unaudited financial statements and notes should be read in conjunction with the audited financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2019. Reclassification Certain prior year amounts have been reclassified from general and administrative expenses to related-party management services agreement fees to conform to current period presentation on the condensed consolidated statements of operations. Enviva Pellets Greenwood On July 1, 2020, we acquired from Enviva Holdings, LP (together with Enviva MLP Holdco, LLC and Enviva Development Holdings, LLC, where applicable, our “sponsor”), all of the limited liability company interests in Enviva Pellets Greenwood Holdings II, LLC (“Greenwood Holdings II”), the indirect owner of Enviva Pellets Greenwood, LLC, which owns a wood pellet production plant located in Greenwood, South Carolina (the “Greenwood plant”), for a purchase price of $132.0 million, subject to certain adjustments (such transaction, the “Greenwood Drop-Down”). In connection therewith, our sponsor assigned five biomass off-take contracts to us (collectively, the “Associated Off-Take Contracts”). The Associated Off-Take Contracts call for aggregate annual deliveries of 1.4 million metric tons per year (“MTPY”) and mature between 2031 and 2041. Our sponsor also assigned two fixed-rate shipping contracts and partially assigned two additional fixed-rate shipping contracts to us. The Greenwood Drop-Down was an asset acquisition of entities under common control and accounted for on the carryover basis of accounting. Accordingly, the consolidated financial statements for the period beginning July 1, 2020 reflect the acquisition. See Note 3, Transactions Between Entities Under Common Control. On the date of the Greenwood Drop-Down: • We entered into an agreement with our sponsor, pursuant to which our sponsor agreed to reimburse us for any construction costs incurred for the planned expansion of the Greenwood plant in excess of $28.0 million (the “Greenwood Make-Whole Agreement”). • We entered into an agreement with Enviva Management Company, LLC, a Delaware limited liability company and wholly owned subsidiary of our sponsor (together with its affiliates that provide services to us, as applicable, “Enviva Management”), pursuant to which (1) Enviva Management waived our obligation to pay an aggregate of approximately $37.0 million in management services and other fees payable under our management services agreement with Enviva Management for the period from July 1, 2020 through the fourth quarter of 2021 and (2) Enviva Management will waive our obligation to pay certain management services and other fees during 2022 unless and until the Greenwood plant’s production volumes equal or exceed 50,000 metric tons (“MT”) in any calendar month, in each case, to provide cash flow support to us during the planned expansion of the Greenwood plant (the “Third EVA MSA Fee Waiver”). Georgia Biomass Holding LLC On July 31, 2020, Enviva Pellets Waycross Holdings, LLC, a wholly owned subsidiary of the Partnership, acquired all of the limited liability company interests in Georgia Biomass Holding LLC, a Georgia limited liability company (“Georgia Biomass”), and the indirect owner of a wood pellet production plant located in Waycross, Georgia (the “Waycross plant”), for a purchase price of $175.0 million, subject to certain adjustments (the “Georgia Biomass Acquisition”). The Waycross plant has been in operation since 2011 and has a production capacity of approximately 800,000 MTPY. The Waycross plant terminals its production at a two-dome pellet export terminal with a storage capacity of 50,000 MT at the Port of Savannah, Georgia pursuant to a lease and associated terminal services agreement through 2028. Approximately 500,000 MTPY of the Waycross plant’s production is contracted under separate agreements to an existing customer of the Partnership through 2024. In August 2020, Georgia Biomass converted to a limited liability company organized under the laws of the State of Delaware under the name Enviva Pellets Waycross Holdings Sub, LLC (“Waycross”). The Georgia Biomass Acquisition was recorded as a business combination and accounted for using the acquisition method. Assets acquired and liabilities assumed were recognized at fair value on the acquisition date of July 31, 2020, and the difference between the consideration transferred, excluding acquisition-related costs, and the fair values of the assets acquired and liabilities assumed was recognized as goodwill. See Note 4, Acquisition. Enviva Wilmington Holdings, LLC On April 2, 2019, we acquired from our sponsor all of the issued and outstanding Class B Units in Enviva Wilmington Holdings, LLC (the “Hamlet JV”), a limited liability company owned by our sponsor and John Hancock Life Insurance Company (U.S.A.) and certain of its affiliates (collectively, as applicable, “John Hancock”). On the date of acquisition (the “Hamlet Drop-Down”), we began to consolidate the Hamlet JV as a variable interest entity of which we are the primary beneficiary. As managing member, we have the sole power to direct the activities that most impact the economics of the Hamlet JV. Additionally, as the Class B Units represent a controlling interest in the Hamlet JV, we account for the Hamlet JV as a consolidated subsidiary, not as a joint venture. The Hamlet JV owns a wood pellet production plant in Hamlet, North Carolina (the “Hamlet plant”) and a firm, 15-year take-or-pay off-take contract with a customer for the delivery of nearly 1.0 million MTPY of wood pellets, following a ramp period. The Hamlet Drop-Down was an asset acquisition of entities under common control and accounted for on the carryover basis of accounting. Accordingly, the consolidated financial statements for the period beginning April 2019 reflect the acquisition.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies During interim periods, we follow the accounting policies disclosed in our Annual Report on Form 10-K for the year ended December 31, 2019. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in our unaudited financial statements and accompanying notes. Actual results could differ materially from those estimates. Intangibles Intangibles consist of the assembled workforce at the Greenwood plant carried over in the Greenwood Drop-Down and favorable customer contracts, unfavorable customer contracts and an unfavorable shipping contact that were acquired in the Georgia Biomass Acquisition. Intangibles with definite lives are amortized based on the pattern of economic benefit over their estimated useful lives and reviewed periodically for impairment. The intangibles acquired in the Georgia Biomass Acquisition are being amortized on a straight-line basis, as MT of wood pellets to be sold or shipped under each contract are constant through the end of such contracts. See Note 9, Goodwill and Other Intangibles . Income taxes Substantially all of our operating subsidiaries are organized as limited partnerships and entities that are disregarded entities for U.S. federal and state income tax purposes. As a result, those entities disregarded for U.S. federal and state income tax purposes are not subject to U.S. federal and most state income taxes. Our partners and unitholders are liable for these income taxes on their share of our taxable income. Some states impose franchise and capital taxes on the Partnership. Such taxes are not material to the consolidated financial statements and have been included in other income (expense) as incurred. One of our subsidiaries formed in connection with the Georgia Biomass Acquisition is subject to U.S. federal income tax and accounts for income tax under the liability method. Deferred taxes are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and net operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of any tax rate change on deferred taxes is recognized in the period that includes the enactment date of the tax rate change. Realization of deferred tax assets is assessed on an annual basis and, if not more likely than not, any deferred tax assets can be utilized and a valuation allowance is recorded to write down the deferred tax assets to their net realizable value. Recently Adopted Accounting Standards On January 1, 2020, we adopted Accounting Standards Update 2016-13 Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which changes how entities measure credit losses for most financial assets. The adoption did not have a material impact on the financial statements. Recently Issued Accounting Standards not yet Adopted Currently, there are no recently issued accounting standards not yet adopted by us that we expect to be reasonably likely to materially impact our financial position, results of operations or cash flows.

Transactions Between Entities U

Transactions Between Entities Under Common Control	9 Months Ended
	Sep. 30, 2020
Transactions Between Entities Under Common Control
Transactions Between Entities Under Common Control	Transactions Between Entities Under Common Control Enviva Pellets Greenwood Holdings II, LLC The Greenwood Drop-Down closed on July 1, 2020 and was an asset acquisition of entities under common control where the financial statements of the receiving entity reflect the transferred assets and liabilities at the historical cost of the parent of the entities under common control. Accordingly, the consolidated financial statements for the period beginning July 1, 2020 reflect the Greenwood Drop-Down. The $132.0 million purchase price for the Greenwood Drop-Down consisted of a cash payment of $129.7 million, net of a purchase price adjustment of $2.3 million. The change in net assets on July 1, 2020 from the Greenwood Drop-Down included $67.8 million of net assets acquired. The following table outlines the changes in consolidated net assets resulting from the Greenwood Drop-Down on July 1, 2020. Assets: Cash and cash equivalents $ 29 Accounts receivable, net 25 Inventories 5,165 Prepaid expenses and other current assets 21 Property, plant and equipment, net 104,662 Operating lease right-of-use assets 7,850 Intangible assets, net 845 Other long-term assets 71 Total assets 118,668 Liabilities: Accounts payable 1,951 Accrued and other current liabilities 4,303 Interest payable 366 Seller Note 36,880 Finance lease obligations 699 Long-term operating lease liabilities 6,649 Total liabilities 50,848 Net assets contributed to Partnership $ 67,820 The unaudited pro forma combined revenue and net income presented below have been prepared as if the Greenwood Drop-Down had occurred on January 1, 2019. The unaudited pro forma financial information has been derived from the consolidated statements of operations of the Partnership and Greenwood for the below periods. The historical financial information has been adjusted in the unaudited combined pro forma information to give effect to pro forma events that are (1) directly attributable to the Greenwood Drop-Down, (2) factually supportable and (3) expected to have a continuing impact on our results of operations following the Greenwood Drop-Down. The unaudited pro forma financial information does not include non-recurring items such as transaction costs related to the acquisition. The unaudited pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved if the Greenwood Drop-Down had taken place on January 1, 2019. The unaudited pro forma combined revenue and net loss for the nine months ended September 30, 2020 and for the year ended December 31, 2019 are as follows: Nine Months Ended Year Ended December 31, 2019 Revenue $ 596,505 $ 682 Net loss (4,596) (46,323) Enviva Wilmington Holdings, LLC The $165.0 million purchase price for the Hamlet Drop-Down in April 2019 consisted of (1) an initial cash payment of $24.7 million, net of a purchase price adjustment of $0.3 million, (2) the issuance of 1,681,237 unregistered common units at a value of $29.74 per unit, or $50.0 million of common units, (3) $50.0 million in cash, paid on June 28, 2019 and (4) a third and final cash payment of $40.0 million paid on January 2, 2020. We are responsible for managing the activities of the Hamlet JV, including the development, construction and operation of the Hamlet plant and are the primary beneficiary of the Hamlet JV. We included all accounts of the Hamlet JV in our consolidated results as of the date of the Hamlet Drop-Down as the Class B Units represent a controlling interest in the Hamlet JV and we are generally unrestricted in managing the assets and cash flows of the Hamlet JV; however, certain decisions, such as those relating to the issuance and redemption of equity interests in the Hamlet JV, guarantees of indebtedness and fundamental changes, including mergers and acquisitions, asset sales and liquidation and dissolution of the Hamlet JV, require the approval of the members of the Hamlet JV.

Acquisition

Acquisition	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Business Combination Disclosure	The Georgia Biomass Acquisition closed on July 31, 2020 for a total purchase price of $175.0 million, subject to certain adjustments. After accounting for certain adjustments, we paid $168.3 million, subject to further adjustment. The Georgia Biomass Acquisition diversifies our manufacturing and export terminaling footprint and expands our operations into a new region with similarly advantaged low-cost access to wood fiber. Preliminary Purchase Price Allocation The purchase price allocation for the Georgia Biomass Acquisition is preliminary. The assets acquired and liabilities assumed have been measured on a preliminary basis using assumptions that are reasonable based on information currently available. The final purchase price allocation may vary based on final valuations and analyses of the fair value of the assets acquired and liabilities assumed. The Georgia Biomass Acquisition was accounted for as a business combination using the acquisition method of accounting. The following table summarizes the estimated purchase price and the estimated fair values of the amounts recorded for identifiable assets acquired and liabilities assumed at July 31, 2020, the acquisition date: Purchase price: Cash paid by the Partnership at closing $ 168,338 Reimbursement to the Partnership of certain acquisition-related costs, net 161 Settlement of payable from the Partnership to Georgia Biomass (3,684) Payment in relation to the Georgia Biomass Acquisition 164,815 Receivable from purchase price adjustment (1,845) $ 162,970 Identified net assets acquired: Cash $ 1,516 Accounts receivable 124 Inventories 5,774 Prepaid expenses and other current assets 872 Intangible assets 5,400 Property, plant and equipment 171,798 Operating lease right-of-use assets 14,716 Accounts payable (3,225) Accrued and other current liabilities (7,121) Current portion of long-term finance lease obligations (926) Long-term finance lease obligations (3,733) Long-term operating lease liabilities (13,356) Deferred tax liability, net (14,076) Intangible liabilities (9,600) Other long-term liabilities (880) Identifiable net assets acquired 147,283 Goodwill 15,687 Total purchase price $ 162,970 The net assets of Georgia Biomass were recorded as provisional amounts at their currently estimated fair values. Significant inputs used to estimate the fair values of certain net assets acquired included estimates of the: (1) replacement cost for property, plant and equipment as if each asset was new as of the acquisition date, which was then adjusted for the depreciation and any obsolescence since the date Georgia Biomass originally acquired that asset; (2) market prices for finished goods inventory and for customer and shipping contracts; (3) incremental borrowing rates as of the acquisition date for leases acquired; and (4) appropriate discount rates. We are in the process of obtaining additional information to identify and measure all assets acquired and liabilities assumed in the Georgia Biomass Acquisition within the measurement period, which could be up to one year from the date of acquisition. Such provisional amounts will be retrospectively adjusted to reflect any new information about facts and circumstances that existed at the acquisition date that, if known, would have affected the measurement of these amounts. Additionally, key valuation inputs and their sensitivity to the valuation of assets acquired and liabilities assumed are currently being reviewed by management. As the valuation of the net assets acquired are finalized, it is reasonably possible that the provisional amounts recorded as of the acquisition date for property, plant and equipment, intangible assets and liabilities, lease-related assets and obligations, deferred taxes, and goodwill may change during the measurement period. Goodwill is calculated as the excess of the fair value of the consideration transferred over the fair value of the net assets recognized and represents the future economic benefits arising from other net assets acquired that could not be individually identified and separately recognized. We believe that the primary items that generated goodwill include both (1) the value of the synergies created between the acquired assets and our pre-existing assets and long-term, take-or-pay off-take contracts and (2) our expected ability to grow the combined business by leveraging the combined business experience and the expanded footprint. None of the goodwill is expected to be deductible for tax purposes. In connection with the Georgia Biomass Acquisition, acquisition-related costs through September 30, 2020 are approximately $3.9 million, of which $3.6 million was expensed during the three and nine months ended September 30, 2020 and included within general and administrative expenses on the condensed consolidated statements of operations. These acquisition-related costs do not include integration costs. Post-acquisition and pro forma financial information The condensed consolidated statements of operations for the three and nine months ended September 30, 2020 include $26.5 million of revenue and $0.1 million of net income from the Georgia Biomass Acquisition since July 31, 2020. The unaudited pro forma combined revenue and net income presented below have been prepared as if the Georgia Biomass Acquisition had occurred on January 1, 2019. The unaudited pro forma financial information has been derived from the consolidated statements of operations of the Partnership for the below periods and from the consolidated abbreviated statements of revenues and direct expenses of Georgia Biomass for the six months ended June 30, 2020 and the year ended December 31, 2019. The abbreviated statements of revenues and direct expenses of Georgia Biomass were prepared for the purposes of complying with the requirements of Rule 3-05 of Regulation S-X as no separate financial statements of Georgia Biomass had previously been prepared. The abbreviated statements of revenues and direct expenses of Georgia Biomass include the revenues and direct expenses directly attributable to manufacturing and distributing wood pellets to customers in the United Kingdom and Europe by Georgia Biomass. The unaudited pro forma financial information reflects the effects of applying certain preliminary purchase price accounting adjustments to the historical financial information based on the fair value of the identified net assets acquired as of July 31, 2020. The historical financial information has been adjusted in the unaudited pro forma information to give effect to pro forma events that are (1) directly attributable to the Georgia Biomass Acquisition, (2) factually supportable and (3) expected to have a continuing impact on our results of operations following the Georgia Biomass Acquisition. The unaudited pro forma financial information does not include non-recurring items such as transaction costs related to the acquisition. The unaudited pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved if the Georgia Biomass Acquisition had taken place on January 1, 2019. The unaudited pro forma combined revenue and net income for the nine months ended September 30, 2020 and for the year ended December 31, 2019 are as follows: Nine Months Ended Year Ended December 31, 2019 Revenue $ 680,883 $ 845,340 Net income 28,778 10,497

Revenue

Revenue	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue	Revenue We disaggregate our revenue into two categories: product sales and other revenue. Product sales includes sales of wood pellets. Other revenue includes fees associated with customer requests to cancel, defer or accelerate shipments in satisfaction of the related performance obligation and third- and related-party terminal services fees. Other revenue also includes fees received for other services, including for sales and marketing, scheduling, sustainability, consultation, shipping and risk management services, where the revenue is recognized when we both have satisfied the performance obligation and have a right to the corresponding fee. These categories best reflect the nature, amount, timing and uncertainty of our revenue and cash flows. Performance Obligations As of September 30, 2020, the aggregate amount of revenues from contracts with customers allocated to performance obligations that were unsatisfied or partially satisfied was approximately $14.6 billion. This amount excludes forward prices related to variable consideration including inflation and foreign currency and commodity prices. Also, this amount excludes the effects of related foreign currency derivative contracts as they do not represent contracts with customers. As of October 1, 2020, we expect to recognize approximately 2.0% of our remaining performance obligations as revenue during the remainder of 2020, approximately 7.0% in 2021 and the balance thereafter. Our off-take contracts expire at various times through 2043 and our terminal services contracts extend into 2021. Additionally, as of October 1, 2020, we have obligations under other contracts to sell and purchase wood pellets of $259.5 million and $187.8 million, respectively. Variable Consideration Variable consideration from off-take contracts arises from several pricing features outlined in our off-take contracts, pursuant to which such contract pricing may be adjusted in respect of particular shipments to reflect differences between certain contractual quality specifications of the wood pellets as measured both when the wood pellets are loaded onto ships and unloaded at the discharge port as well as certain other contractual adjustments. Variable consideration from terminal services contracts, which was none for the three and nine months ended September 30, 2020 and insignificant for the three and nine months ended September 30, 2019, arises from price increases based on agreed inflation indices and from above-minimum throughput quantities or services. We allocate variable consideration under our off-take and terminal services contracts entirely to each performance obligation to which variable consideration relates. The estimate of variable consideration represents the amount that is not more likely than not to be reversed. For the three months ended September 30, 2020, revenue was reduced by $0.1 million related to performance obligations satisfied in previous periods. For the nine months ended September 30, 2020, we recognized $0.1 million of revenue related to performance obligations satisfied in previous periods. For the three and nine months ended September 30, 2019 we recognized $0.1 million and $0.5 million, respectively, of revenue related to performance obligations satisfied in previous periods. Contract Balances Accounts receivable related to product sales as of September 30, 2020 and December 31, 2019 were $78.4 million and $67.7 million. As of September 30, 2020, we had no deferred revenue for future performance obligations associated with off-take contracts. As of December 31, 2019, we had $4.1 million of deferred revenue for future performance obligations associated with off-take contracts.
Other	Other Accrued and other current liabilities included approximately $12.2 million and $7.6 million at September 30, 2020 and December 31, 2019 for amounts associated with purchased shipments from third-party suppliers that were resold in back-to-back transactions.

Significant Risks and Uncertain

Significant Risks and Uncertainties Including Business and Credit Concentrations	9 Months Ended
	Sep. 30, 2020
Risks and Uncertainties [Abstract]
Significant Risks and Uncertainties Including Business and Credit Concentrations	Significant Risks and Uncertainties Including Business and Credit ConcentrationsOur business is significantly impacted by greenhouse gas emission and renewable energy legislation and regulations in the U.K., European Union (“EU”) as well as its member states and Japan. If the U.K., the EU or its member states or Japan significantly modify such legislation or regulations, then our ability to enter into new contracts as our existing contracts expire may be materially affected. Our current product sales are primarily to industrial customers located in the U.K., Denmark and Belgium. Product sales to third-party customers that accounted for 10% or a greater share of consolidated product sales are as follows: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Customer A 35 % 49 % 36 % 50 % Customer B 10 % 12 % 10 % 11 % Customer C 26 % 22 % 29 % 21 % Customer D 8 % 8 % 8 % 11 % Customer E 12 % — % 5 % — %

Inventories

Inventories	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following as of: September 30, 2020 December 31, 2019 Raw materials $ 11,719 $ 9,795 Consumable tooling 27,824 20,485 Finished goods 22,435 2,718 Total inventories $ 61,978 $ 32,998

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following as of: September 30, 2020 December 31, 2019 Land $ 22,420 $ 15,226 Land improvements 60,064 56,637 Buildings 316,830 217,167 Machinery and equipment 787,175 588,447 Vehicles 1,317 635 Furniture and office equipment 8,202 6,822 Leasehold improvements 1,029 1,029 Property, plant and equipment 1,197,037 885,963 Less accumulated depreciation (278,951) (203,695) Property, plant and equipment, net 918,086 682,268 Construction in progress 143,784 69,512 Total property, plant and equipment, net $ 1,061,870 $ 751,780

Goodwill and Other Intangibles

Goodwill and Other Intangibles	9 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles	Goodwill and Other Intangibles Goodwill Goodwill was $101.3 million and $85.6 million at September 30, 2020 and December 31, 2019, respectively. In July 2020, we recorded $15.7 million to goodwill as part of the Georgia Biomass Acquisition, see Note 4, Acquisition . We did not record any impairment losses during the three and nine months ended September 30, 2020 and 2019. Intangibles Intangible assets (liabilities) consisted of the following at September 30, 2020: Gross Carrying Amount Accumulated Amortization Net Carrying Amount Favorable customer contracts $ 5,400 $ (2,200) $ 3,200 Assembled workforce 1,856 (1,130) 726 Unfavorable customer contracts (3,300) 256 (3,044) Unfavorable shipping contract (6,300) 231 (6,069) Total intangible liabilities, net $ (2,344) $ (2,843) $ (5,187) The Greenwood Drop-Down included an intangible asset of assembled workforce. As a result of the Georgia Biomass Acquisition, we recorded intangible assets and liabilities related to favorable off-take contracts that expire in 2020, unfavorable customer contracts that expire in December 2025 and an unfavorable shipping contract that expires in December 2026. During the three and nine months ended September 30, 2020, $1.8 million of net amortization expense was included in depreciation and amortization on the condensed consolidated statements of operations. The estimated aggregate net increase in (reduction of) amortization expense for the next five years are as follows: Year Ending December 31: Remainder of 2020 $ 3,011 2021 (1,433) 2022 (1,780) 2023 (1,911) 2024 (1,911) Thereafter (1,163) Total $ (5,187)

Leases

Leases	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Leases	Leases We have operating and finance leases related to real estate, machinery, equipment and other assets where we are the lessee. Leases with an initial term of 12 months or less are not recorded on the balance sheet but are recognized as lease expense on a straight-line basis over the applicable lease terms. Leases with an initial term of longer than 12 months are recorded on the balance sheet and classified as either operating or finance. Right-of-use (“ROU”) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Our leases do not contain any material residual value guarantees, restrictive covenants or subleases. In addition to fixed lease payments, we have contracts that incur variable lease expense related to usage (e.g. throughput fees, maintenance and repair and machine hours), which are expensed as incurred. Our leases have remaining terms of one to 27 years, some of which include options to extend the leases for up to five years. Our leases are generally noncancelable. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. We apply an incremental borrowing rate to our leases for balance sheet measurement. As most of our leases do not provide an implicit rate, we generally use the estimated rate of interest for a collateralized borrowing over a similar term of the lease payments at the lease commencement date as our incremental borrowing rate. Operating leases are included in operating lease ROU assets, accrued and other current liabilities and long-term operating lease liabilities on our condensed consolidated balance sheets. Finance leases are included in property, plant and equipment, current portion of long-term debt and finance lease obligations and long-term debt and finance lease obligations on our condensed consolidated balance sheets. Changes in ROU assets and operating lease liabilities are included net in change in operating lease liabilities on the condensed consolidated statements of cash flows. Operating lease ROU assets and liabilities and finance leases were as follows: September 30, 2020 December 31, 2019 Operating leases: Operating lease right-of-use assets $ 52,417 $ 32,830 Current portion of operating lease liabilities $ 3,506 $ 1,439 Long-term operating lease liabilities 50,891 33,469 Total operating lease liabilities $ 54,397 $ 34,908 Finance leases: Property, plant and equipment, net $ 19,251 $ 7,398 Current portion of long-term finance lease obligations $ 7,111 $ 4,584 Long-term finance lease obligations 7,195 2,954 Total finance lease liabilities $ 14,306 $ 7,538 Operating and finance lease costs were as follows: Three Months Ended Nine Months Ended Lease Cost Classification 2020 2019 2020 2019 Operating lease cost: Fixed lease cost Cost of goods sold $ 1,502 $ 1,269 $ 4,008 $ 3,546 Variable lease cost Cost of goods sold 1 3 1 29 Short-term lease costs Cost of goods sold 2,474 15 6,389 15 Total operating lease costs $ 3,977 $ 1,287 $ 10,398 $ 3,590 Finance lease cost: Amortization of leased assets Depreciation and amortization $ 2,227 $ 1,094 $ 5,219 $ 2,578 Variable lease cost Cost of goods sold 53 4 169 4 Interest on lease liabilities Interest expense 145 70 363 179 Total finance lease costs $ 2,425 $ 1,168 $ 5,751 $ 2,761 Total lease costs $ 6,402 $ 2,455 $ 16,149 $ 6,351 Operating and finance lease cash flow information was as follows: Nine Months Ended 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,832 $ 3,715 Operating cash flows from financing leases 363 179 Financing cash flows from financing leases 3,702 2,020 Assets obtained in exchange for lease obligations: Operating leases $ 20,931 $ 7,465 Financing leases 15,357 5,380 The future minimum lease payments and the aggregate maturities of operating and finance lease liabilities are as follows as of September 30, 2020: Years Ending December 31, Operating Finance Total Remainder of 2020 $ 1,701 $ 2,525 $ 4,226 2021 6,756 6,061 12,817 2022 6,466 2,667 9,133 2023 6,718 1,577 8,295 2024 6,190 502 6,692 Thereafter 72,754 1,651 74,405 Total lease payments 100,585 14,983 115,568 Less: imputed interest (46,188) (677) (46,865) Total present value of lease liabilities $ 54,397 $ 14,306 $ 68,703 The weighted-average remaining lease terms and discount rates for our operating and finance leases were weighted using the undiscounted future minimum lease payments and are as follows as of September 30, 2020: Weighted average remaining lease term (years): Operating leases 17 Finance leases 3 Weighted average discount rate: Operating leases 7 % Finance leases 4 %
Leases	Leases We have operating and finance leases related to real estate, machinery, equipment and other assets where we are the lessee. Leases with an initial term of 12 months or less are not recorded on the balance sheet but are recognized as lease expense on a straight-line basis over the applicable lease terms. Leases with an initial term of longer than 12 months are recorded on the balance sheet and classified as either operating or finance. Right-of-use (“ROU”) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Our leases do not contain any material residual value guarantees, restrictive covenants or subleases. In addition to fixed lease payments, we have contracts that incur variable lease expense related to usage (e.g. throughput fees, maintenance and repair and machine hours), which are expensed as incurred. Our leases have remaining terms of one to 27 years, some of which include options to extend the leases for up to five years. Our leases are generally noncancelable. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. We apply an incremental borrowing rate to our leases for balance sheet measurement. As most of our leases do not provide an implicit rate, we generally use the estimated rate of interest for a collateralized borrowing over a similar term of the lease payments at the lease commencement date as our incremental borrowing rate. Operating leases are included in operating lease ROU assets, accrued and other current liabilities and long-term operating lease liabilities on our condensed consolidated balance sheets. Finance leases are included in property, plant and equipment, current portion of long-term debt and finance lease obligations and long-term debt and finance lease obligations on our condensed consolidated balance sheets. Changes in ROU assets and operating lease liabilities are included net in change in operating lease liabilities on the condensed consolidated statements of cash flows. Operating lease ROU assets and liabilities and finance leases were as follows: September 30, 2020 December 31, 2019 Operating leases: Operating lease right-of-use assets $ 52,417 $ 32,830 Current portion of operating lease liabilities $ 3,506 $ 1,439 Long-term operating lease liabilities 50,891 33,469 Total operating lease liabilities $ 54,397 $ 34,908 Finance leases: Property, plant and equipment, net $ 19,251 $ 7,398 Current portion of long-term finance lease obligations $ 7,111 $ 4,584 Long-term finance lease obligations 7,195 2,954 Total finance lease liabilities $ 14,306 $ 7,538 Operating and finance lease costs were as follows: Three Months Ended Nine Months Ended Lease Cost Classification 2020 2019 2020 2019 Operating lease cost: Fixed lease cost Cost of goods sold $ 1,502 $ 1,269 $ 4,008 $ 3,546 Variable lease cost Cost of goods sold 1 3 1 29 Short-term lease costs Cost of goods sold 2,474 15 6,389 15 Total operating lease costs $ 3,977 $ 1,287 $ 10,398 $ 3,590 Finance lease cost: Amortization of leased assets Depreciation and amortization $ 2,227 $ 1,094 $ 5,219 $ 2,578 Variable lease cost Cost of goods sold 53 4 169 4 Interest on lease liabilities Interest expense 145 70 363 179 Total finance lease costs $ 2,425 $ 1,168 $ 5,751 $ 2,761 Total lease costs $ 6,402 $ 2,455 $ 16,149 $ 6,351 Operating and finance lease cash flow information was as follows: Nine Months Ended 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,832 $ 3,715 Operating cash flows from financing leases 363 179 Financing cash flows from financing leases 3,702 2,020 Assets obtained in exchange for lease obligations: Operating leases $ 20,931 $ 7,465 Financing leases 15,357 5,380 The future minimum lease payments and the aggregate maturities of operating and finance lease liabilities are as follows as of September 30, 2020: Years Ending December 31, Operating Finance Total Remainder of 2020 $ 1,701 $ 2,525 $ 4,226 2021 6,756 6,061 12,817 2022 6,466 2,667 9,133 2023 6,718 1,577 8,295 2024 6,190 502 6,692 Thereafter 72,754 1,651 74,405 Total lease payments 100,585 14,983 115,568 Less: imputed interest (46,188) (677) (46,865) Total present value of lease liabilities $ 54,397 $ 14,306 $ 68,703 The weighted-average remaining lease terms and discount rates for our operating and finance leases were weighted using the undiscounted future minimum lease payments and are as follows as of September 30, 2020: Weighted average remaining lease term (years): Operating leases 17 Finance leases 3 Weighted average discount rate: Operating leases 7 % Finance leases 4 %

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2020
Derivative Instrument Detail [Abstract]
Derivative Instruments	Derivative Instruments We use derivative instruments to partially offset our business exposure to foreign currency exchange and interest rate risk. We may enter into foreign currency forward and option contracts to offset some of the foreign currency exchange risk on expected future cash flows and interest rate swaps to offset some of the interest rate risk on expected future cash flows on certain borrowings. The preponderance of our off-take contracts are US Dollar-denominated. We are primarily exposed to fluctuations in foreign currency exchange rates related to off-take contracts that require future deliveries of wood pellets to be settled in British Pound Sterling (“GBP”) and Euro (“EUR”) in the minority of our contracts that are not denominated in US Dollars. Our derivative instruments expose us to credit risk to the extent that hedge counterparties may be unable to meet the terms of the applicable derivative instrument. We seek to mitigate such risks by limiting our counterparties to major financial institutions. In addition, we monitor the potential risk of loss with any one counterparty resulting from credit risk. Management does not expect material losses as a result of defaults by counterparties. We use derivative instruments to manage cash flow and do not enter into derivative instruments for speculative or trading purposes. We entered into pay-fixed, receive-variable interest rate swaps that expire in September 2021 and October 2021 to hedge interest rate risk associated with our variable rate borrowings under our senior secured revolving credit facility that are not designated and accounted for as cash flow hedges. Derivative instruments are classified as Level 2 assets or liabilities based on inputs such as spot and forward benchmark interest rates (such as LIBOR) and foreign exchange rates. The fair value of derivative instruments not designated as hedging instruments at September 30, 2020 and December 31, 2019 was as follows: Asset (Liability) Balance Sheet Classification September 30, 2020 December 31, 2019 Interest rate swap: Accrued and other current liabilities $ (142) $ — Other long-term liabilities (4) — Foreign currency exchange contracts: Other current assets 873 408 Other long-term assets 3,488 1,774 Accrued and other current liabilities (220) (735) Other long-term liabilities (296) (1,055) Total derivatives not designated as hedging instruments $ 3,699 $ 392 Unrealized losses related to the change in fair market value of interest rate swaps are recorded in interest expense and were insignificant and $0.2 million for the three and nine months ended September 30, 2020. Our interest rate swap outstanding at and during the three and nine months ended September 30, 2019 was designated as a hedging instrument. Net unrealized losses related to the change in fair market value of foreign currency derivatives were $2.6 million during the three months ended September 30, 2020 and were included in product sales. Net unrealized gains related to the change in fair market value of foreign currency derivatives were $4.1 million during the nine months ended September 30, 2020 and were included in product sales. Net unrealized gains related to the change in fair market value of foreign currency derivatives were $1.1 million and $1.4 million during the three and nine months ended September 30, 2019, respectively, and were included in product sales. Realized gains related to derivatives settled were $0.1 million and $0.3 million during the three and nine months ended September 30, 2020, respectively, and were included in product sales. Realized gains related to derivatives settled were $1.6 million and $1.7 million during the three and nine months ended September 30, 2019, respectively, and were included in product sales. We enter into master netting arrangements designed to permit net settlement of derivative transactions among the respective counterparties. If we had settled all transactions with our respective counterparties at September 30, 2020, we would have received a net settlement termination payment of $3.6 million, which is $0.1 million less than the recorded fair value of the derivatives. We present our derivative assets and liabilities at their gross fair values. The notional amounts of outstanding derivative instruments associated with outstanding or unsettled derivative instruments as of September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 December 31, 2019 Foreign exchange forward contracts in GBP £ 92,225 £ 50,575 Foreign exchange purchased option contracts in GBP £ 42,115 £ 43,415 Foreign exchange purchased option contracts in EUR € — € 1,200 Interest rate swap $ 70,000 $ 34,354

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The amounts reported in the unaudited condensed consolidated balance sheets as cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, related-party receivables, net, related-party payables, net, and accrued and other current liabilities approximate fair value because of the short-term nature of these instruments. Derivative instruments and long-term debt and finance lease obligations, including the current portion, are classified as Level 2 instruments. The fair value of our senior notes was determined based on observable market prices in a less active market and was categorized as Level 2 in the fair value hierarchy. The fair value of other long-term debt and finance lease obligations classified as Level 2 was determined based on the usage of market prices not quoted on active markets and other observable market data. The fair value of the long-term debt and finance lease obligations are based upon rates currently available for debt and finance lease obligations with similar terms and remaining maturities. The carrying amount of derivative instruments approximates fair value. The carrying amount and estimated fair value of long-term debt and finance lease obligations as of September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 December 31, 2019 Carrying Fair Carrying Fair 2026 Notes $ 746,920 $ 793,125 $ 593,476 $ 644,250 Seller Note 37,222 38,467 — — Other long-term debt and finance lease obligations 121,306 121,306 9,544 9,544 Total long-term debt and finance lease obligations $ 905,448 $ 952,898 $ 603,020 $ 653,794

Long-Term Debt and Finance Leas

Long-Term Debt and Finance Lease Obligations	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt and Finance Lease Obligations	Long-Term Debt and Finance Lease Obligations Long-term debt and finance lease obligations at carrying value are composed of the following: September 30, 2020 December 31, 2019 2026 Notes, net of unamortized discount, premium and debt issuance of $3.1 million as of September 30, 2020 and $6.5 million as of December 31, 2019 $ 746,920 $ 593,476 Senior secured revolving credit facility 105,000 — Seller Note, net of unamortized discount of $2.8 million 37,222 — Other loans 2,000 2,006 Finance leases 14,306 7,538 Total long-term debt and finance lease obligations 905,448 603,020 Less current portion of long-term debt and finance lease obligations (11,611) (6,590) Long-term debt and finance lease obligations, excluding current installments $ 893,837 $ 596,430 2026 Notes In December 2019, we issued $600.0 million in principal amount of 6.5% senior unsecured notes due January 15, 2026 (the “2026 Notes”). In July 2020, we issued an additional $150.0 million aggregate principal amount of the 2026 Notes at an offering price of 103.75% of the principal amount (the “Additional Notes”). We received net proceeds of approximately $153.6 million from the Additional Notes offering after deducting discounts and commissions. We used the net proceeds from the Additional Notes offering to fund a portion of the cash consideration for the Georgia Biomass Acquisition and the Greenwood Drop-Down, to repay borrowings under our revolving credit facility and for general partnership purposes. As of September 30, 2020 and December 31, 2019, we were in compliance with all covenants and restrictions associated with, and no events of default existed under, the indenture dated as of December 9, 2019 governing the 2026 Notes. The 2026 Notes are guaranteed jointly and severally on a senior unsecured basis by our existing subsidiaries (excluding Enviva Partners Finance Corp.) that guarantee certain of our indebtedness and may be guaranteed by certain future restricted subsidiaries. Senior Secured Revolving Credit Facility As of September 30, 2020 and December 31, 2019, we were in compliance with all covenants and restrictions associated with, and no events of default existed under, our senior secured revolving credit facility. Our obligations under the senior secured revolving credit facility are guaranteed by certain of our subsidiaries and secured by liens on substantially all of our assets; however, the senior secured revolving credit facility is not guaranteed by the Hamlet JV or secured by liens on its assets. At September 30, 2020, we had $105.0 million in outstanding borrowings under our senior secured revolving credit facility. We had no outstanding borrowings under our senior secured revolving credit facility at December 31, 2019. We had a $31.0 million letter of credit outstanding under our senior secured revolving credit facility as of September 30, 2020 and no letter of credit outstanding at December 31, 2019. The sole outstanding letter of credit was issued in connection the Georgia Biomass Acquisition. Seller Note In connection with the Greenwood Drop-Down, we became a party to, and a guarantor of, a promissory note (the “Seller Note”) with a remaining principal balance of $40.0 million, which was initially recorded at its carrying value of $36.9 million. The Seller Note matures in February 2023 and has an interest rate of 2.5% per annum. Principal and related interest payments are due annually beginning February 2018 through February 2022 and quarterly thereafter.

Related-Party Transactions

Related-Party Transactions	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Related-Party Transactions	Related-Party Transactions Related-party amounts included on the unaudited condensed consolidated statements of operations were as follows: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Other revenue $ — $ 496 $ 1,264 $ 1,323 Cost of goods sold 25,361 26,300 101,357 80,921 General and administrative expenses 6,196 7,439 20,832 22,998 Management Services Agreements Enviva Partners, LP and the Hamlet JV are parties to management services agreements (together, the “MSAs”) with Enviva Management. Enviva Management provides us with operations, general administrative, management and other services. We reimburse Enviva Management for all direct or indirect internal or third-party expenses it incurs in connection with the provision of such services. The MSAs include rent-related amounts for noncancelable operating leases for office space in Maryland and North Carolina held by our sponsor. Under the Hamlet JV’s management services agreement (the “Hamlet JV MSA”), the Hamlet JV pays an annual management fee to Enviva Management and to the extent allocated costs exceed the annual management fee, the additional costs are recorded with an increase to partners’ capital. In connection with the Hamlet Drop-Down, Enviva Management waived the Hamlet JV’s obligation to pay approximately $2.7 million of management fees payable to Enviva Management from the date thereof until July 1, 2020 (the “Hamlet JV MSA Fee Waiver”). Related-party amounts included on the unaudited condensed consolidated balance sheets under our MSAs were as follows: September 30, 2020 December 31, 2019 Finished goods inventory $ 2,774 $ 419 Related party payables 7,077 18,703 Related-party amounts included on the unaudited condensed consolidated statements of operations under our MSAs were as follows: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of goods sold $ 22,952 $ 17,764 $ 53,465 $ 51,477 Related-party management services agreement fees 6,196 7,439 20,832 22,998 During the three and nine months ended September 30, 2020, $0.2 million and $1.5 million, respectively, of fees expensed under the Hamlet JV MSA were waived pursuant to the Hamlet JV MSA Fee Waiver and recorded as an increase to partners’ capital. During the three and nine months ended September 30, 2019, $0.8 million and $1.7 million, respectfully, of fees expensed under the Hamlet JV MSA were waived pursuant to the Hamlet JV MSA Fee Waiver and recorded as an increase to partners’ capital. Drop-Down Agreements Greenwood Drop-Down Pursuant to the Third EVA MSA Fee Waiver, during the three and nine months ended September 30, 2020, $9.0 million was recorded as an increase to partners’ capital consisting of expenses waived under the agreement. Hamlet Drop-Down On the date of the Hamlet Drop-Down: • We entered into an agreement with our sponsor, pursuant to which (1) our sponsor agreed to guarantee certain cash flows from the Hamlet plant until June 30, 2020, (2) our sponsor agreed to reimburse us for construction cost overruns in excess of budgeted capital expenditures for the Hamlet plant, subject to certain exceptions, (3) we agreed to pay to our sponsor quarterly incentive payments for any wood pellets produced by the Hamlet plant in excess of forecast production levels through June 30, 2020 and (4) our sponsor agreed to retain liability for certain claims payable, if any, by the Hamlet JV (the “Hamlet Make-Whole Agreement”). • We entered into an agreement with Enviva Management to waive our obligation to pay an aggregate of approximately $13.0 million in fees payable under our management services agreement with Enviva Management (the “EVA MSA”) with respect to the period from the date of the Hamlet Drop-Down through the second quarter of 2020 (the “First EVA MSA Fee Waiver”). • The Hamlet JV entered into an interim services agreement (the “ISA”) with Enviva Hamlet Operator, LLC, a wholly owned subsidiary of our sponsor (“Hamlet Operator”), pursuant to which Hamlet Operator, as an independent contractor, agreed to manage, operate, maintain and repair the Hamlet plant and provide other services to the Hamlet JV for the period from July 1, 2019 through June 30, 2020 in exchange for a fixed fee per MT of wood pellets produced by the Hamlet plant during such period and delivered at place to the Wilmington terminal. Under and during the term of the ISA, Hamlet Operator agreed to (1) pay all operating and maintenance expenses at the Hamlet plant, (2) cover all reimbursable general and administrative expenses associated with the Hamlet plant and (3) pay other costs and expenses incurred by the Hamlet plant to produce and sell the wood pellets delivered to the Wilmington terminal from the Hamlet plant. Our sponsor guarantees all obligations of Hamlet Operator under the ISA. For the three months ended September 30, 2020, we did not record any amounts related to the Hamlet Make-Whole Agreement, First EVA MSA Waiver and ISA as they expired pursuant to their terms on June 30, 2020. For the nine months ended September 30, 2020, $3.5 million was recorded as an increase to partners’ capital consisting of expenses waived under the First EVA MSA Fee Waiver. Cost of goods sold included $25.2 million net of a cost of cover deficiency fee from our sponsor pursuant to the Hamlet Make-Whole Agreement as a result of Hamlet Operator’s failure to meet specified production levels, offset by the agreed-upon price due to Hamlet Operator for the wood pellets produced by the Hamlet plant that we sold. Additionally, at December 31, 2019, $0.5 million was included in finished goods inventory. As of September 30, 2020, included in related-party receivables, net are $16.6 million related to the ISA. Second EVA MSA Fee Waiver In June 2019, we entered into an agreement with Enviva Management (the “Second EVA MSA Fee Waiver”) pursuant to which we received a $5.0 million waiver of fees under the EVA MSA through September 30, 2019 as consideration for an assignment of two shipping contracts to our sponsor to rebalance our and our sponsor’s respective shipping obligations under our existing off-take contracts. During the three and nine months ended September 30, 2019, $2.3 million and $5.0 million, respectively, of EVA MSA fees expensed were waived and recorded as an increase to partners’ capital pursuant to the Second EVA MSA Fee Waiver. Greenwood Contract We were a party to a contract with Greenwood to purchase wood pellets produced by the Greenwood plant through March 2022 (the “Greenwood contract”) and had a take-or-pay obligation with respect to 550,000 MTPY of wood pellets from July 2019 through March 2022, subject to Greenwood’s option to increase or decrease the volume by 10% each contract year. Pursuant to amendments to the Greenwood Contract, our take-or-pay obligation with respect to 550,000 MTPY of wood pellets was deferred to 2021. The Greenwood Contract was terminated on the date of the Greenwood Drop-Down. During the nine months ended September 30, 2020, we purchased $18.8 million of wood pellets from Greenwood and recorded a cost of cover deficiency fee of approximately $0.3 million from Greenwood. During the three and nine months ended September 30, 2019, we purchased $11.3 million and $35.5 million, respectively, of wood pellets from Greenwood and recorded a cost of cover deficiency fee of approximately $1.0 million and $4.3 million, respectively, from Greenwood as it was unable to satisfy certain commitments. As of September 30, 2020, the net purchased amount of $18.1 million related to the Greenwood contract was included in cost of goods sold. As of September 30, 2019, the net purchased amount of $31.2 million related to the Greenwood contract included $29.7 million in cost of goods sold and $1.5 million in finished goods inventory. Holdings TSA We were party to a long-term terminal services agreement with our sponsor (the “Holdings TSA”) effective until September 1, 2026. Pursuant to the Holdings TSA, our sponsor agreed to deliver a minimum of 125,000 MT of wood pellets per quarter for receipt, storage, handling and loading services by the Wilmington terminal and pay a fixed fee on a per-ton basis for such terminal services. The Holdings TSA was amended and assigned to Greenwood and provided for deficiency payments to Wilmington if quarterly minimum throughput requirements were not met. During the nine months ended September 30, 2020, we recorded $1.3 million of deficiency fees from Greenwood, which are included in other revenue. We did not record deficiency fees from Greenwood during the three months ended September 30, 2020. During the three and nine months ended September 30, 2019, we recorded $0.5 million and $1.3 million, respectively, of deficiency fees from Greenwood, which are included in other revenue. The Holdings TSA was terminated on the date of the Greenwood Drop-Down. Enviva FiberCo, LLC We purchase raw materials from Enviva FiberCo, LLC (“FiberCo”), a wholly owned subsidiary of our sponsor, including through a wood supply agreement that provided for deficiency fees in the event that FiberCo did not satisfy certain volume commitments. Purchased raw materials net of cost of cover deficiency fees are included in cost of goods sold. Raw materials purchased during the three and nine months ended September 30, 2020, was $2.4 million and $4.6 million, respectively. No cost of cover deficiency fees were recognized during the three and nine months ended September 30, 2020. Purchased raw materials, net of cost of cover deficiency fees from FiberCo during the three and nine months ended September 30, 2019 was insignificant and $0.6 million, respectively. As of September 30, 2020, $0.3 million is included in related-party payables related to raw materials purchased from FiberCo.

Partners' Capital

Partners' Capital	9 Months Ended
	Sep. 30, 2020
Partners' Capital Notes [Abstract]
Partners' Capital	Partners’ Capital Issuance of Common Units In June 2020, we issued 6,153,846 common units in a private placement at a price of $32.50 per common unit for gross proceeds of $200.0 million. We received proceeds of $190.8 million, net of $9.2 million of issuance costs. Allocations of Net Income Our partnership agreement contains provisions for the allocation of net income and loss to our unitholders and Enviva Partners GP, LLC (“General Partner”), a wholly owned subsidiary of our sponsor. For purposes of maintaining partner capital accounts, the partnership agreement specifies that items of income and loss shall be allocated among the partners of the Partnership in accordance with their respective percentage ownership interest. Such allocations are made after giving effect, if any, to priority income allocations in an amount equal to incentive cash distributions, which are allocated 100% to the General Partner. Prior to the Hamlet Drop-Down, John Hancock had received all of its capital contributions and substantially all of its preference amount and the historical net losses of the Hamlet JV had been allocated to the members of the Hamlet JV in proportion to their unreturned capital contributions; consequently, the balance of members’ capital attributable to John Hancock was negative at the time of the Hamlet Drop-Down. We have not received repayment of revolving borrowings from the Hamlet JV pursuant to the Hamlet JV Revolver or its capital contributions and full preference amount as of September 30, 2020; as a result, none of the earnings of the Hamlet JV have been allocated to John Hancock following the Hamlet Drop-Down and no change has been recognized to the negative noncontrolling interest balance attributable to John Hancock that we acquired. Incentive Distribution Rights Incentive distribution rights (“IDRs”) represent the right to receive increasing percentages (from 15.0% to 50.0%) of quarterly distributions from operating surplus after we achieve distributions in amounts exceeding specified target distribution levels. Our General Partner currently holds the IDRs, but may transfer them at any time. Cash Distributions to Unitholders Distributions that have been paid or declared related to the reporting period are considered in the determination of earnings per unit. The following table details the cash distribution paid or declared (in millions, except per-unit amounts): Quarter Declaration Record Payment Distribution Total Cash Total Payment to General Partner for Incentive Distribution Rights September 30, 2019 October 30, 2019 November 15, 2019 November 29, 2019 $ 0.6700 $ 22.4 $ 3.1 December 31, 2019 January 29, 2020 February 14, 2020 February 28, 2020 $ 0.6750 $ 22.7 $ 3.3 March 31, 2020 April 29, 2020 May 15, 2020 May 29, 2020 $ 0.6800 $ 22.9 $ 3.5 June 30, 2020 August 5, 2020 August 14, 2020 August 28, 2020 $ 0.7650 $ 30.4 $ 7.5 September 30, 2020 October 30, 2020 November 13, 2020 November 27, 2020 $ 0.7750 $ 30.8 $ 7.9 For purposes of calculating our earnings per unit under the two-class method, common units are treated as participating preferred units. IDRs are treated as participating securities. Distributions made in future periods based on the current period calculation of cash available for distribution are allocated to each class of equity that will receive the distribution. Any unpaid cumulative distributions are allocated to the appropriate class of equity. We determine the amount of cash available for distribution for each quarter in accordance with our partnership agreement. The amount to be distributed to unitholders and IDR holders is based on the distribution waterfall set forth in our partnership agreement. Net earnings for the quarter are allocated to each class of partnership interest based on the distributions to be made.

Equity-Based Awards

Equity-Based Awards	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Equity-Based Awards	Equity-Based Awards The following table summarizes information regarding phantom unit awards (the “Affiliate Grants”) under the LTIP to employees of Enviva Management and its affiliates who provide services to us: Time-Based Performance-Based Total Affiliate Grant Units Weighted-Average Grant Date Fair Value (per unit)(1) Units Weighted-Average Grant Date Fair Value (per unit)(1) Units Weighted-Average Grant Date Fair Value (per unit)(1) Nonvested December 31, 2019 874,286 $ 28.90 435,270 $ 28.84 1,309,556 $ 28.88 Granted 550,540 $ 37.97 387,060 $ 38.02 937,600 $ 37.99 Forfeitures (120,176) $ 32.97 (103,053) $ 30.78 (223,229) $ 31.96 Vested (193,522) $ 25.49 (53,645) $ 25.39 (247,167) $ 25.47 Nonvested September 30, 2020 1,111,128 $ 33.55 665,632 $ 34.16 1,776,760 $ 33.78 ______________________________________________________________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued. The unrecognized estimated compensation expense relating to outstanding Affiliate Grants at September 30, 2020 was $17.5 million, which will be recognized over the remaining vesting period. The following table summarizes information regarding phantom unit awards to certain non-employee directors of the General Partner (the “Director Grants”) under the LTIP: Time-Based Phantom Units Units Weighted-Average Grant Date Fair Value (per unit)(1) Nonvested December 31, 2019 13,264 $ 30.16 Granted 14,987 $ 38.37 Vested (13,264) $ 30.16 Nonvested September 30, 2020 14,987 $ 38.37 In February and August 2020, Director Grants valued at $0.5 million and $0.1 million were granted and vest on the first anniversary of the grant date. In February 2019, the Director Grants that were nonvested at December 31, 2019 vested, and common units were issued in respect of such vested Director Grants. During the three and nine months ended September 30, 2020 we recognized $0.1 million and $0.3 million, respectively, of unit based compensation expense with respect to the Director Grants. The unrecognized estimated compensation expense relating to outstanding Director Grants at September 30, 2020 was $0.2 million, which will be recognized over the remaining vesting periods.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Substantially all of our operating subsidiaries are organized as limited partnerships and entities that are disregarded entities for U.S. federal and state income tax purposes. Our unitholders are liable for these income taxes on their share of our taxable income. Some states impose franchise and capital taxes on us. Such taxes are not material to the condensed consolidated financial statements and have been included in other income (expense) as incurred. One of our subsidiaries formed in connection with the Georgia Biomass Acquisition is a taxable entity and is subject to U.S. federal income taxes. As of September 30, 2020, the only periods subject to examination for U.S. federal and state income tax returns are 2017 through 2019. We believe our income tax filing positions, including our status as a pass-through entity, would be sustained on audit and do not anticipate any adjustments that would result in a material change to our unaudited condensed consolidated balance sheet. Therefore, no reserves for uncertain tax positions or interest and penalties have been recorded.

Net Income (Loss) per Limited P

Net Income (Loss) per Limited Partner Unit	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Net Income (Loss) per Limited Partner Unit	Net Income (Loss) per Limited Partner Unit Net income (loss) per unit applicable to limited partners is computed by dividing limited partners’ interest in net income (loss), after deducting any incentive distributions, by the weighted-average number of units outstanding. Our net income (loss) is allocated to the limited partners in accordance with their respective ownership percentages, after giving effect to priority income allocations for incentive distributions, if any, to the holder of the IDRs, which are declared and paid following the close of each quarter. Earnings in excess of distributions are allocated to the limited partners based on their respective ownership interests. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income (loss) allocations used in the calculation of earnings per unit. In addition to the common units, we have identified the IDRs and phantom units as participating securities and apply the two-class method when calculating the net income (loss) per unit applicable to limited partners, which is based on the weighted-average number of units outstanding during the period. Diluted net income per unit includes the effects of potentially dilutive time-based and performance-based phantom units on our common units. The following computation of net income (loss) available per limited partner unit is as follows for the three and nine months ended September 30, 2020 and 2019: Three Months Ended Nine Months Ended Common Units General Partner Total Common Units General Partner Total Distributions declared $ 30,821 $ 7,869 $ 38,690 $ 84,100 $ 18,798 $ 102,898 Earnings less than distributions (38,150) — (38,150) (87,931) — (87,931) Net (loss) income available to partners $ (7,329) $ 7,869 $ 540 $ (3,831) $ 18,798 $ 14,967 Weighted-average units outstanding—basic and diluted 39,767 35,814 Net loss per limited partner unit—basic and diluted $ (0.18) $ (0.11) Three Months Ended Nine Months Ended Common Units General Partner Total Common Units General Partner Total Distributions declared $ 22,416 $ 3,107 $ 25,523 $ 66,077 $ 8,150 $ 74,227 Earnings less than distributions (17,275) — (17,275) (79,925) — (79,925) Net income (loss) available to partners $ 5,141 $ 3,107 $ 8,248 $ (13,848) $ 8,150 $ (5,698) Weighted-average units outstanding—basic and diluted 33,457 31,230 Net income (loss) per limited partner unit—basic and diluted $ 0.15 $ (0.44)

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in our unaudited financial statements and accompanying notes. Actual results could differ materially from those estimates.
Intangibles	Intangibles Intangibles consist of the assembled workforce at the Greenwood plant carried over in the Greenwood Drop-Down and favorable customer contracts, unfavorable customer contracts and an unfavorable shipping contact that were acquired in the Georgia Biomass Acquisition. Intangibles with definite lives are amortized based on the pattern of economic benefit over their estimated useful lives and reviewed periodically for impairment. The intangibles acquired in the Georgia Biomass Acquisition are being amortized on a straight-line basis, as MT of wood pellets to be sold or shipped under each contract are constant through the end of such contracts. See Note 9, Goodwill and Other Intangibles
Accounting Standards Adopted and Recently Issued not yet Adopted	Recently Adopted Accounting Standards On January 1, 2020, we adopted Accounting Standards Update 2016-13 Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which changes how entities measure credit losses for most financial assets. The adoption did not have a material impact on the financial statements. Recently Issued Accounting Standards not yet Adopted Currently, there are no recently issued accounting standards not yet adopted by us that we expect to be reasonably likely to materially impact our financial position, results of operations or cash flows.
Income Tax	Income taxes Substantially all of our operating subsidiaries are organized as limited partnerships and entities that are disregarded entities for U.S. federal and state income tax purposes. As a result, those entities disregarded for U.S. federal and state income tax purposes are not subject to U.S. federal and most state income taxes. Our partners and unitholders are liable for these income taxes on their share of our taxable income. Some states impose franchise and capital taxes on the Partnership. Such taxes are not material to the consolidated financial statements and have been included in other income (expense) as incurred. One of our subsidiaries formed in connection with the Georgia Biomass Acquisition is subject to U.S. federal income tax and accounts for income tax under the liability method. Deferred taxes are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and net operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of any tax rate change on deferred taxes is recognized in the period that includes the enactment date of the tax rate change. Realization of deferred tax assets is assessed on an annual basis and, if not more likely than not, any deferred tax assets can be utilized and a valuation allowance is recorded to write down the deferred tax assets to their net realizable value.

Revenue Revenue (Policies)

Revenue Revenue (Policies)	9 Months Ended
	Sep. 30, 2020
Revenue [Abstract]
Revenue	We disaggregate our revenue into two categories: product sales and other revenue. Product sales includes sales of wood pellets. Other revenue includes fees associated with customer requests to cancel, defer or accelerate shipments in satisfaction of the related performance obligation and third- and related-party terminal services fees. Other revenue also includes fees received for other services, including for sales and marketing, scheduling, sustainability, consultation, shipping and risk management services, where the revenue is recognized when we both have satisfied the performance obligation and have a right to the corresponding fee. These categories best reflect the nature, amount, timing and uncertainty of our revenue and cash flows.

Leases (Policies)

Leases (Policies)	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Lessee, Leases	We have operating and finance leases related to real estate, machinery, equipment and other assets where we are the lessee. Leases with an initial term of 12 months or less are not recorded on the balance sheet but are recognized as lease expense on a straight-line basis over the applicable lease terms. Leases with an initial term of longer than 12 months are recorded on the balance sheet and classified as either operating or finance.We apply an incremental borrowing rate to our leases for balance sheet measurement. As most of our leases do not provide an implicit rate, we generally use the estimated rate of interest for a collateralized borrowing over a similar term of the lease payments at the lease commencement date as our incremental borrowing rate.

Derivative Instruments (Policie

Derivative Instruments (Policies)	9 Months Ended
	Sep. 30, 2020
Derivative Instrument Detail [Abstract]
Derivative Instruments	We use derivative instruments to partially offset our business exposure to foreign currency exchange and interest rate risk. We may enter into foreign currency forward and option contracts to offset some of the foreign currency exchange risk on expected future cash flows and interest rate swaps to offset some of the interest rate risk on expected future cash flows on certain borrowings.

Transactions Between Entities_2

Transactions Between Entities Under Common Control (Tables)	9 Months Ended
	Sep. 30, 2020
Transactions Between Entities Under Common Control
Schedule of changes in consolidated net assets	The following table outlines the changes in consolidated net assets resulting from the Greenwood Drop-Down on July 1, 2020. Assets: Cash and cash equivalents $ 29 Accounts receivable, net 25 Inventories 5,165 Prepaid expenses and other current assets 21 Property, plant and equipment, net 104,662 Operating lease right-of-use assets 7,850 Intangible assets, net 845 Other long-term assets 71 Total assets 118,668 Liabilities: Accounts payable 1,951 Accrued and other current liabilities 4,303 Interest payable 366 Seller Note 36,880 Finance lease obligations 699 Long-term operating lease liabilities 6,649 Total liabilities 50,848 Net assets contributed to Partnership $ 67,820
Common Control Transaction, Schedule of Pro Forma Information	The unaudited pro forma combined revenue and net loss for the nine months ended September 30, 2020 and for the year ended December 31, 2019 are as follows: Nine Months Ended Year Ended December 31, 2019 Revenue $ 596,505 $ 682 Net loss (4,596) (46,323)

Acquisition (Tables)

Acquisition (Tables)	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Schedule of Business Acquisitions, Estimated Purchase Price and Estimated Fair Values of Recorded Identifiable Assets Acquired and Liabilities Assumed	The following table summarizes the estimated purchase price and the estimated fair values of the amounts recorded for identifiable assets acquired and liabilities assumed at July 31, 2020, the acquisition date: Purchase price: Cash paid by the Partnership at closing $ 168,338 Reimbursement to the Partnership of certain acquisition-related costs, net 161 Settlement of payable from the Partnership to Georgia Biomass (3,684) Payment in relation to the Georgia Biomass Acquisition 164,815 Receivable from purchase price adjustment (1,845) $ 162,970 Identified net assets acquired: Cash $ 1,516 Accounts receivable 124 Inventories 5,774 Prepaid expenses and other current assets 872 Intangible assets 5,400 Property, plant and equipment 171,798 Operating lease right-of-use assets 14,716 Accounts payable (3,225) Accrued and other current liabilities (7,121) Current portion of long-term finance lease obligations (926) Long-term finance lease obligations (3,733) Long-term operating lease liabilities (13,356) Deferred tax liability, net (14,076) Intangible liabilities (9,600) Other long-term liabilities (880) Identifiable net assets acquired 147,283 Goodwill 15,687 Total purchase price $ 162,970
Schedule of Acquisition, Unaudited Pro Forma Information	The unaudited pro forma combined revenue and net income for the nine months ended September 30, 2020 and for the year ended December 31, 2019 are as follows: Nine Months Ended Year Ended December 31, 2019 Revenue $ 680,883 $ 845,340 Net income 28,778 10,497

Significant Risks and Uncerta_2

Significant Risks and Uncertainties Including Business and Credit Concentrations (Tables)	9 Months Ended
	Sep. 30, 2020
Risks and Uncertainties [Abstract]
Schedule of revenue from major customers	Product sales to third-party customers that accounted for 10% or a greater share of consolidated product sales are as follows: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Customer A 35 % 49 % 36 % 50 % Customer B 10 % 12 % 10 % 11 % Customer C 26 % 22 % 29 % 21 % Customer D 8 % 8 % 8 % 11 % Customer E 12 % — % 5 % — %

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Schedule of inventories	Inventories consisted of the following as of: September 30, 2020 December 31, 2019 Raw materials $ 11,719 $ 9,795 Consumable tooling 27,824 20,485 Finished goods 22,435 2,718 Total inventories $ 61,978 $ 32,998

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment	Property, plant and equipment consisted of the following as of: September 30, 2020 December 31, 2019 Land $ 22,420 $ 15,226 Land improvements 60,064 56,637 Buildings 316,830 217,167 Machinery and equipment 787,175 588,447 Vehicles 1,317 635 Furniture and office equipment 8,202 6,822 Leasehold improvements 1,029 1,029 Property, plant and equipment 1,197,037 885,963 Less accumulated depreciation (278,951) (203,695) Property, plant and equipment, net 918,086 682,268 Construction in progress 143,784 69,512 Total property, plant and equipment, net $ 1,061,870 $ 751,780

Goodwill and Other Intangibles

Goodwill and Other Intangibles (Tables)	9 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	Intangible assets (liabilities) consisted of the following at September 30, 2020: Gross Carrying Amount Accumulated Amortization Net Carrying Amount Favorable customer contracts $ 5,400 $ (2,200) $ 3,200 Assembled workforce 1,856 (1,130) 726 Unfavorable customer contracts (3,300) 256 (3,044) Unfavorable shipping contract (6,300) 231 (6,069) Total intangible liabilities, net $ (2,344) $ (2,843) $ (5,187)
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The estimated aggregate net increase in (reduction of) amortization expense for the next five years are as follows: Year Ending December 31: Remainder of 2020 $ 3,011 2021 (1,433) 2022 (1,780) 2023 (1,911) 2024 (1,911) Thereafter (1,163) Total $ (5,187)

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Operating lease ROU assets and liabilities and finance leases	Operating lease ROU assets and liabilities and finance leases were as follows: September 30, 2020 December 31, 2019 Operating leases: Operating lease right-of-use assets $ 52,417 $ 32,830 Current portion of operating lease liabilities $ 3,506 $ 1,439 Long-term operating lease liabilities 50,891 33,469 Total operating lease liabilities $ 54,397 $ 34,908 Finance leases: Property, plant and equipment, net $ 19,251 $ 7,398 Current portion of long-term finance lease obligations $ 7,111 $ 4,584 Long-term finance lease obligations 7,195 2,954 Total finance lease liabilities $ 14,306 $ 7,538
Operating and finance lease cash flow information	Operating and finance lease costs were as follows: Three Months Ended Nine Months Ended Lease Cost Classification 2020 2019 2020 2019 Operating lease cost: Fixed lease cost Cost of goods sold $ 1,502 $ 1,269 $ 4,008 $ 3,546 Variable lease cost Cost of goods sold 1 3 1 29 Short-term lease costs Cost of goods sold 2,474 15 6,389 15 Total operating lease costs $ 3,977 $ 1,287 $ 10,398 $ 3,590 Finance lease cost: Amortization of leased assets Depreciation and amortization $ 2,227 $ 1,094 $ 5,219 $ 2,578 Variable lease cost Cost of goods sold 53 4 169 4 Interest on lease liabilities Interest expense 145 70 363 179 Total finance lease costs $ 2,425 $ 1,168 $ 5,751 $ 2,761 Total lease costs $ 6,402 $ 2,455 $ 16,149 $ 6,351 Operating and finance lease cash flow information was as follows: Nine Months Ended 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,832 $ 3,715 Operating cash flows from financing leases 363 179 Financing cash flows from financing leases 3,702 2,020 Assets obtained in exchange for lease obligations: Operating leases $ 20,931 $ 7,465 Financing leases 15,357 5,380 The weighted-average remaining lease terms and discount rates for our operating and finance leases were weighted using the undiscounted future minimum lease payments and are as follows as of September 30, 2020: Weighted average remaining lease term (years): Operating leases 17 Finance leases 3 Weighted average discount rate: Operating leases 7 % Finance leases 4 %
Aggregate maturities of operating lease liabilities	The future minimum lease payments and the aggregate maturities of operating and finance lease liabilities are as follows as of September 30, 2020: Years Ending December 31, Operating Finance Total Remainder of 2020 $ 1,701 $ 2,525 $ 4,226 2021 6,756 6,061 12,817 2022 6,466 2,667 9,133 2023 6,718 1,577 8,295 2024 6,190 502 6,692 Thereafter 72,754 1,651 74,405 Total lease payments 100,585 14,983 115,568 Less: imputed interest (46,188) (677) (46,865) Total present value of lease liabilities $ 54,397 $ 14,306 $ 68,703
Aggregate maturities of finance lease liabilities	The future minimum lease payments and the aggregate maturities of operating and finance lease liabilities are as follows as of September 30, 2020: Years Ending December 31, Operating Finance Total Remainder of 2020 $ 1,701 $ 2,525 $ 4,226 2021 6,756 6,061 12,817 2022 6,466 2,667 9,133 2023 6,718 1,577 8,295 2024 6,190 502 6,692 Thereafter 72,754 1,651 74,405 Total lease payments 100,585 14,983 115,568 Less: imputed interest (46,188) (677) (46,865) Total present value of lease liabilities $ 54,397 $ 14,306 $ 68,703

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instrument Detail [Abstract]
Schedule of fair values of the derivative financial instruments included in the consolidated balance sheets	The fair value of derivative instruments not designated as hedging instruments at September 30, 2020 and December 31, 2019 was as follows: Asset (Liability) Balance Sheet Classification September 30, 2020 December 31, 2019 Interest rate swap: Accrued and other current liabilities $ (142) $ — Other long-term liabilities (4) — Foreign currency exchange contracts: Other current assets 873 408 Other long-term assets 3,488 1,774 Accrued and other current liabilities (220) (735) Other long-term liabilities (296) (1,055) Total derivatives not designated as hedging instruments $ 3,699 $ 392
Schedule of notional amounts of outstanding derivative instruments designated as cash flow hedges associated with outstanding or unsettled derivative instruments	The notional amounts of outstanding derivative instruments associated with outstanding or unsettled derivative instruments as of September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 December 31, 2019 Foreign exchange forward contracts in GBP £ 92,225 £ 50,575 Foreign exchange purchased option contracts in GBP £ 42,115 £ 43,415 Foreign exchange purchased option contracts in EUR € — € 1,200 Interest rate swap $ 70,000 $ 34,354

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of carrying amount and estimated fair value of long-term debt and capital lease obligations	The carrying amount and estimated fair value of long-term debt and finance lease obligations as of September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 December 31, 2019 Carrying Fair Carrying Fair 2026 Notes $ 746,920 $ 793,125 $ 593,476 $ 644,250 Seller Note 37,222 38,467 — — Other long-term debt and finance lease obligations 121,306 121,306 9,544 9,544 Total long-term debt and finance lease obligations $ 905,448 $ 952,898 $ 603,020 $ 653,794

Long-Term Debt and Finance Le_2

Long-Term Debt and Finance Lease Obligations (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Schedule of long-term debt and finance lease obligations	Long-term debt and finance lease obligations at carrying value are composed of the following: September 30, 2020 December 31, 2019 2026 Notes, net of unamortized discount, premium and debt issuance of $3.1 million as of September 30, 2020 and $6.5 million as of December 31, 2019 $ 746,920 $ 593,476 Senior secured revolving credit facility 105,000 — Seller Note, net of unamortized discount of $2.8 million 37,222 — Other loans 2,000 2,006 Finance leases 14,306 7,538 Total long-term debt and finance lease obligations 905,448 603,020 Less current portion of long-term debt and finance lease obligations (11,611) (6,590) Long-term debt and finance lease obligations, excluding current installments $ 893,837 $ 596,430

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Schedule of related party amounts	Related-party amounts included on the unaudited condensed consolidated statements of operations were as follows: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Other revenue $ — $ 496 $ 1,264 $ 1,323 Cost of goods sold 25,361 26,300 101,357 80,921 General and administrative expenses 6,196 7,439 20,832 22,998
Related-party balance sheet location under management services agreements	Related-party amounts included on the unaudited condensed consolidated balance sheets under our MSAs were as follows: September 30, 2020 December 31, 2019 Finished goods inventory $ 2,774 $ 419 Related party payables 7,077 18,703
Related-party income statement location under management services agreements	Three Months Ended Nine Months Ended 2020 2019 2020 2019 Cost of goods sold $ 22,952 $ 17,764 $ 53,465 $ 51,477 Related-party management services agreement fees 6,196 7,439 20,832 22,998

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Dividends Declared	The following table details the cash distribution paid or declared (in millions, except per-unit amounts): Quarter Declaration Record Payment Distribution Total Cash Total Payment to General Partner for Incentive Distribution Rights September 30, 2019 October 30, 2019 November 15, 2019 November 29, 2019 $ 0.6700 $ 22.4 $ 3.1 December 31, 2019 January 29, 2020 February 14, 2020 February 28, 2020 $ 0.6750 $ 22.7 $ 3.3 March 31, 2020 April 29, 2020 May 15, 2020 May 29, 2020 $ 0.6800 $ 22.9 $ 3.5 June 30, 2020 August 5, 2020 August 14, 2020 August 28, 2020 $ 0.7650 $ 30.4 $ 7.5 September 30, 2020 October 30, 2020 November 13, 2020 November 27, 2020 $ 0.7750 $ 30.8 $ 7.9

Equity-Based Awards (Tables)

Equity-Based Awards (Tables)	9 Months Ended
	Sep. 30, 2020
Affiliate Grants
Equity-Based Awards
Schedule of phantom unit awards	The following table summarizes information regarding phantom unit awards (the “Affiliate Grants”) under the LTIP to employees of Enviva Management and its affiliates who provide services to us: Time-Based Performance-Based Total Affiliate Grant Units Weighted-Average Grant Date Fair Value (per unit)(1) Units Weighted-Average Grant Date Fair Value (per unit)(1) Units Weighted-Average Grant Date Fair Value (per unit)(1) Nonvested December 31, 2019 874,286 $ 28.90 435,270 $ 28.84 1,309,556 $ 28.88 Granted 550,540 $ 37.97 387,060 $ 38.02 937,600 $ 37.99 Forfeitures (120,176) $ 32.97 (103,053) $ 30.78 (223,229) $ 31.96 Vested (193,522) $ 25.49 (53,645) $ 25.39 (247,167) $ 25.47 Nonvested September 30, 2020 1,111,128 $ 33.55 665,632 $ 34.16 1,776,760 $ 33.78 ______________________________________________________________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued.
Director Grants
Equity-Based Awards
Schedule of phantom unit awards	The following table summarizes information regarding phantom unit awards to certain non-employee directors of the General Partner (the “Director Grants”) under the LTIP: Time-Based Phantom Units Units Weighted-Average Grant Date Fair Value (per unit)(1) Nonvested December 31, 2019 13,264 $ 30.16 Granted 14,987 $ 38.37 Vested (13,264) $ 30.16 Nonvested September 30, 2020 14,987 $ 38.37

Net Income (Loss) per Limited_2

Net Income (Loss) per Limited Partner Unit (Tables)	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Schedule of basic earnings (loss) per common, subordinated and general partner units	The following computation of net income (loss) available per limited partner unit is as follows for the three and nine months ended September 30, 2020 and 2019: Three Months Ended Nine Months Ended Common Units General Partner Total Common Units General Partner Total Distributions declared $ 30,821 $ 7,869 $ 38,690 $ 84,100 $ 18,798 $ 102,898 Earnings less than distributions (38,150) — (38,150) (87,931) — (87,931) Net (loss) income available to partners $ (7,329) $ 7,869 $ 540 $ (3,831) $ 18,798 $ 14,967 Weighted-average units outstanding—basic and diluted 39,767 35,814 Net loss per limited partner unit—basic and diluted $ (0.18) $ (0.11) Three Months Ended Nine Months Ended Common Units General Partner Total Common Units General Partner Total Distributions declared $ 22,416 $ 3,107 $ 25,523 $ 66,077 $ 8,150 $ 74,227 Earnings less than distributions (17,275) — (17,275) (79,925) — (79,925) Net income (loss) available to partners $ 5,141 $ 3,107 $ 8,248 $ (13,848) $ 8,150 $ (5,698) Weighted-average units outstanding—basic and diluted 33,457 31,230 Net income (loss) per limited partner unit—basic and diluted $ 0.15 $ (0.44)

Description of Business and B_2

Description of Business and Basis of Presentation (Details) MT in Thousands, $ in Thousands	Jul. 31, 2020USD ($)MT	Jul. 01, 2020USD ($)MT	Jan. 02, 2020USD ($)	Jun. 28, 2019USD ($)	Apr. 02, 2019USD ($)T	Sep. 30, 2020plant
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of industrial-scale production wood pellet production plants in operation | plant						9
Hamlet Transaction
Business Acquisition [Line Items]
Purchase price			$ 40,000	$ 50,000	$ 24,700
Total consideration					$ 165,000
Greenwood, SC | Greenwood Drop-Down
Business Acquisition [Line Items]
Purchase price		$ 129,700
Total consideration		$ 132,000
Take-or-pay off-take contract volume (MTPY) | MT		1,400
Greenwood, SC | Make-Whole agreement | Greenwood Drop-Down
Business Acquisition [Line Items]
Construction cost incurred		$ 28,000
Greenwood, SC | Third EVA MSA Fee Waiver | Greenwood Drop-Down
Business Acquisition [Line Items]
Fee waived		$ 37,000
Plant Production Volumes (MT) | MT		50
Waycross, GA | Georgia Biomass Holding LLC
Business Acquisition [Line Items]
Purchase price	$ 175,000
Take-or-pay off-take contract volume (MTPY) | MT	500
Plant Production Capacity (MTPY) | MT	800
Savannah, GA | Georgia Biomass Holding LLC
Business Acquisition [Line Items]
Wood Pellet Storage Capacity (MT) | MT	50
Hamlet, NC | Hamlet JV | Hamlet Transaction
Business Acquisition [Line Items]
Take-or-pay off-take contract volume (MTPY) | T					1,000,000

Transactions Between Entities_3

Transactions Between Entities Under Common Control - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 01, 2020	Jan. 02, 2020	Jun. 28, 2019	Apr. 02, 2019	Sep. 30, 2020	Dec. 31, 2019
Transactions Between Entities Under Common Control [Line Items]
Cash and cash equivalents					$ 1,346	$ 9,053
Accounts receivable, net					11,228	0
Inventories					61,978	32,998
Prepaid expenses and other current assets					14,845	5,617
Property, Plant and Equipment, Net					1,061,870	751,780
Other long-term assets					11,734	4,504
Assets					1,403,651	994,818
Accounts payable					27,182	18,985
Accrued Liabilities and Other Liabilities					78,759	59,066
Finance lease obligations					14,306	7,538
Long-term operating lease liabilities					50,891	33,469
Operating Lease, Right-of-Use Asset					52,417	32,830
Total liabilities					1,101,259	762,242
Net assets contributed to Partnership	$ 67,820
Hamlet Drop-Down
Transactions Between Entities Under Common Control [Line Items]
Cash payment		$ 40,000	$ 50,000	$ 24,700
Net purchase price adjustment				300
Total consideration				165,000
Purchase price		$ 40,000	$ 50,000	$ 24,700
Issuance of common units (in units)				1,681,237
Issuance of common units (usd per unit)				$ 29.74
Common unit issuance				$ 50,000
Greenwood Drop-Down
Transactions Between Entities Under Common Control [Line Items]
Cash and cash equivalents	29
Accounts receivable, net	25
Inventories	5,165
Prepaid expenses and other current assets	21
Property, Plant and Equipment, Net	104,662
Intangible assets, net	845
Other long-term assets	71
Assets	118,668
Accounts payable	1,951
Accrued Liabilities and Other Liabilities	4,303
Interest Payable	366
Seller Note	36,880
Finance lease obligations	699
Long-term operating lease liabilities	6,649
Operating Lease, Right-of-Use Asset	7,850
Total liabilities	50,848
Revenue					596,505	682
Net income					$ (4,596)	$ (46,323)
Greenwood Drop-Down | Greenwood, SC
Transactions Between Entities Under Common Control [Line Items]
Cash payment	129,700
Net purchase price adjustment	2,300
Total consideration	132,000
Purchase price	$ 129,700

Acquisition (Details)

Acquisition (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Jul. 01, 2020
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net							$ 67,820
Business Acquisition, Transaction Costs	$ 3,900
Net revenue		$ 225,580	$ 157,405	$ 597,769	$ 483,853
Net Income (Loss) Attributable to Parent		1,411	8,852	17,515	(3,872)
Product sales
Business Acquisition [Line Items]
Net revenue		216,187	$ 155,188	569,691	$ 478,989
General and administrative expenses
Business Acquisition [Line Items]
Business Acquisition, Transaction Costs	3,600
Georgia Biomass
Business Acquisition [Line Items]
Total consideration	175,000
Cash payment	168,300
Identified Net Assets Acquired	(147,283)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	162,970
Revenue				680,883		$ 845,340
Net income				28,778		$ 10,497
Net revenue		26,500		26,500
Net Income (Loss) Attributable to Parent		$ 100		$ 100
Georgia Biomass | Cash
Business Acquisition [Line Items]
Identified Net Assets Acquired	(1,516)
Georgia Biomass | Accounts receivable
Business Acquisition [Line Items]
Identified Net Assets Acquired	(124)
Georgia Biomass | Inventories
Business Acquisition [Line Items]
Identified Net Assets Acquired	(5,774)
Georgia Biomass | Prepaid expenses and other current assets
Business Acquisition [Line Items]
Identified Net Assets Acquired	(872)
Georgia Biomass | Intangible assets
Business Acquisition [Line Items]
Identified Net Assets Acquired	(5,400)
Georgia Biomass | Property, plant and equipment
Business Acquisition [Line Items]
Identified Net Assets Acquired	(171,798)
Georgia Biomass | Operating lease right-of-use assets
Business Acquisition [Line Items]
Identified Net Assets Acquired	(14,716)
Georgia Biomass | Accounts payable
Business Acquisition [Line Items]
Identified Net Assets Acquired	(3,225)
Georgia Biomass | Accrued and other current liabilities
Business Acquisition [Line Items]
Identified Net Assets Acquired	(7,121)
Georgia Biomass | Current portion of long-term finance lease obligations
Business Acquisition [Line Items]
Identified Net Assets Acquired	(926)
Georgia Biomass | Long-term finance lease obligations
Business Acquisition [Line Items]
Identified Net Assets Acquired	(3,733)
Georgia Biomass | Long-term operating lease liabilities
Business Acquisition [Line Items]
Identified Net Assets Acquired	(13,356)
Georgia Biomass | Deferred tax liability, net
Business Acquisition [Line Items]
Identified Net Assets Acquired	(14,076)
Georgia Biomass | Intangible liabilities
Business Acquisition [Line Items]
Identified Net Assets Acquired	(9,600)
Georgia Biomass | Other long-term liabilities
Business Acquisition [Line Items]
Identified Net Assets Acquired	(880)
Georgia Biomass | Goodwill
Business Acquisition [Line Items]
Identified Net Assets Acquired	(15,687)
Purchase Price Reconciliation
Business Acquisition [Line Items]
Cash payment	168,338
Reimbursement to the Partnership of certain acquisition-related costs, net	161
Settlement of payable from the Partnership to Georgia Biomass	(3,684)
Payment in relation to the Georgia Biomass Acquisition	164,815
Receivable from purchase price adjustment	(1,845)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 162,970

Revenue - Performance Obligatio

Revenue - Performance Obligations (Details) - USD ($) $ in Millions	Oct. 01, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Performance Obligations
Remaining performance obligations		$ 14,600		$ 14,600
Revenue reduced related to performance obligations satisfied in previous period		$ 0.1
Revenue recognized related to performance obligations satisfied in previous periods			$ 0.1	$ 0.1	$ 0.5
Customer Contract-Sell
Performance Obligations
Revenue - Other Contracts	$ 259.5
Customer Contract-Purchase
Performance Obligations
Pellet Purchase Contract	$ 187.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Performance Obligations
Remaining performance obligations, percentage		2.00%		2.00%
Expected remaining performance obligation		3 months		3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Performance Obligations
Remaining performance obligations, percentage		7.00%		7.00%
Expected remaining performance obligation		1 year		1 year

Revenue - Contract Balances (De

Revenue - Contract Balances (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Accounts receivable primarily related to product sales	$ 78.4	$ 67.7
Deferred revenue	$ 0	$ 4.1

Other (Details)

Other (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accrued Liabilities and Other Liabilities	$ 78,759	$ 59,066
Purchased shipments from third-party suppliers resold in back-to-back transactions
Accrued Liabilities and Other Liabilities	$ 12,200	$ 7,600

Significant Risks and Uncerta_3

Significant Risks and Uncertainties Including Business and Credit Concentrations (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Customer A
Concentration Risk
Concentration risk (as a percent)	35.00%	49.00%	36.00%	50.00%
Customer B
Concentration Risk
Concentration risk (as a percent)	10.00%	12.00%	10.00%	11.00%
Customer C
Concentration Risk
Concentration risk (as a percent)	26.00%	22.00%	29.00%	21.00%
Customer D
Concentration Risk
Concentration risk (as a percent)	8.00%	8.00%	8.00%	11.00%
Customer E
Concentration Risk
Concentration risk (as a percent)	12.00%	0.00%	5.00%	0.00%

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 11,719	$ 9,795
Consumable tooling	27,824	20,485
Finished goods	22,435	2,718
Total inventories	$ 61,978	$ 32,998

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Components of Property, plant and equipment
Property, plant and equipment, gross	$ 1,197,037		$ 1,197,037		$ 885,963
Less accumulated depreciation	(278,951)		(278,951)		(203,695)
Property, plant and equipment excluding construction in progress	918,086		918,086		682,268
Construction in progress	143,784		143,784		69,512
Property, plant and equipment, net	1,061,870		1,061,870		751,780
Total depreciation expense	18,800	$ 13,300	48,000	$ 35,800
Interest capitalized related to construction in progress	1,700	$ 700	4,100	$ 1,400
Land
Components of Property, plant and equipment
Property, plant and equipment, gross	22,420		22,420		15,226
Land improvements
Components of Property, plant and equipment
Property, plant and equipment, gross	60,064		60,064		56,637
Buildings
Components of Property, plant and equipment
Property, plant and equipment, gross	316,830		316,830		217,167
Machinery and equipment
Components of Property, plant and equipment
Property, plant and equipment, gross	787,175		787,175		588,447
Vehicles
Components of Property, plant and equipment
Property, plant and equipment, gross	1,317		1,317		635
Furniture and office equipment
Components of Property, plant and equipment
Property, plant and equipment, gross	8,202		8,202		6,822
Leasehold improvements
Components of Property, plant and equipment
Property, plant and equipment, gross	1,029		1,029		1,029
Property Plant and equipment and construction in progress
Components of Property, plant and equipment
Accrued and other current liabilities	$ 12,000		$ 12,000		$ 9,400

Goodwill and Other Intangible_2

Goodwill and Other Intangibles (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Jul. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 101,303,000	$ 101,303,000		$ 85,615,000
Goodwill, Impairment Loss	0	0
Net Amortization Expense Included in Depreciation and Amortization		1.8
Total intangible liabilities, net	(2,344,000)	(2,344,000)
Total intangible liabilities, net	(2,843,000)	(2,843,000)
Total intangible liabilities, net	5,187,000	5,187,000
Remainder of 2020	3,011,000	3,011,000
2021	(1,433,000)	(1,433,000)
2022	(1,780,000)	(1,780,000)
2023	(1,911,000)	(1,911,000)
2024	(1,911,000)	(1,911,000)
Thereafter	(1,163,000)	(1,163,000)
Total	5,187,000	5,187,000
Georgia Biomass
Business Acquisition [Line Items]
Goodwill			$ 15,700,000
Customer Contracts
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	5,400,000	5,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	(2,200,000)	(2,200,000)
Finite-Lived Intangible Assets, Net	3,200,000	3,200,000
Assembled Workforce
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	1,856,000	1,856,000
Finite-Lived Intangible Assets, Accumulated Amortization	(1,130,000)	(1,130,000)
Finite-Lived Intangible Assets, Net	726,000	726,000
Unfavorable Customer Contract
Business Acquisition [Line Items]
Finite-Lived Intangible Liabilities, Gross	(3,300,000)	(3,300,000)
Finite Lived Intangible Liabilities, Accumulated Amortization	256,000	256,000
Finite-Lived Intangible Liabilities, Net	(3,044,000)	(3,044,000)
Unfavorable Shipping Contract
Business Acquisition [Line Items]
Finite-Lived Intangible Liabilities, Gross	(6,300,000)	(6,300,000)
Finite Lived Intangible Liabilities, Accumulated Amortization	231,000	231,000
Finite-Lived Intangible Liabilities, Net	$ (6,069,000)	$ (6,069,000)

Leases - Narrative (Details)

Leases - Narrative (Details)	9 Months Ended
	Sep. 30, 2020
Lessee, Lease, Description [Line Items]
Option to extend the lease terms	5 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	27 years

Leases - Operating Lease ROU As

Leases - Operating Lease ROU Assets and Liabilities and Finance Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Operating leases:
Operating lease right-of-use assets, net	$ 52,417	$ 32,830
Current portion of operating lease liabilities	3,506	1,439
Long-term operating lease liabilities	50,891	33,469
Total operating lease liabilities	54,397	34,908
Finance leases:
Property plant and equipment, net	19,251	7,398
Current portion of long-term finance lease obligations	7,111	4,584
Long-term finance lease obligations	7,195	2,954
Total finance lease liabilities	$ 14,306	$ 7,538

Leases - Operating and Finance

Leases - Operating and Finance Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating lease cost:
Fixed lease cost	$ 1,502	$ 1,269	$ 4,008	$ 3,546
Variable lease cost	1	3	1	29
Short-term lease costs	2,474	15	6,389	15
Total operating lease costs	3,977	1,287	10,398	3,590
Finance lease cost:
Amortization of leased assets	2,227	1,094	5,219	2,578
Variable lease cost	53	4	169	4
Interest on lease liabilities	145	70	363	179
Total finance lease costs	2,425	1,168	5,751	2,761
Total lease costs	$ 6,402	$ 2,455	$ 16,149	$ 6,351

Leases - Operating and Financ_2

Leases - Operating and Finance Lease Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,832	$ 3,715
Operating cash flows from financing leases	363	179
Financing cash flows from financing leases	3,702	2,020
Assets obtained in exchange for lease obligations:
Operating leases	20,931	7,465
Financing leases	$ 15,357	$ 5,380

Leases - Aggregate Maturities o

Leases - Aggregate Maturities of Operating and Finance Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Operating Leases
Remainder of 2020	$ 1,701
2021	6,756
2022	6,466
2023	6,718
2024	6,190
Thereafter	72,754
Total lease payments	100,585
Less: imputed interest	(46,188)
Total present value of lease liabilities	54,397	$ 34,908
Finance Leases
Remainder of 2020	2,525
2021	6,061
2022	2,667
2023	1,577
2024	502
Thereafter	1,651
Total lease payments	14,983
Less: imputed interest	(677)
Finance lease obligations	14,306	$ 7,538
Total
Remainder of 2020	4,226
2021	12,817
2022	9,133
2023	8,295
2024	6,692
Thereafter	74,405
Total lease payments	115,568
Less: imputed interest	(46,865)
Total present value of lease liabilities	$ 68,703

Leases - Weighted-average Remai

Leases - Weighted-average Remaining Operating and Finance Lease Terms and Discount Rates (Details)	Sep. 30, 2020
Weighted average remaining lease term (years):
Operating leases	17 years
Finance leases	3 years
Weighted average discount rate:
Operating leases	7.00%
Finance leases	4.00%

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivatives, Fair Value [Line Items]
Derivatives			$ (250,000)	$ 1,514,000
Net derivative settlement termination payment amount	$ 3,600,000		3,600,000
Increase (Decrease) from Recorded Fair Value of Net Derivative Settlement Termination Payment Amount	100,000		100,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivatives	7,689		200,000
Product sales
Derivatives, Fair Value [Line Items]
Realized gains on settled derivatives	(100,000)	$ (1,600,000)	(300,000)	(1,700,000)
Product sales | Foreign currency derivatives
Derivatives, Fair Value [Line Items]
Derivatives	$ 2,600,000	$ 1,100,000	$ (4,100,000)	$ 1,400,000

Derivative Instruments - Fair V

Derivative Instruments - Fair Values (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair value of cash flow hedges
Total derivatives not designated as hedging instruments	$ 3,699	$ 392
Other current assets | Foreign currency derivatives
Fair value of cash flow hedges
Total asset derivative	873	408
Other long-term assets | Foreign currency derivatives
Fair value of cash flow hedges
Total asset derivative	3,488	1,774
Accrued and other current liabilities | Interest Rate Swap
Fair value of cash flow hedges
Total asset derivative	(142)	0
Accrued and other current liabilities | Foreign currency derivatives
Fair value of cash flow hedges
Total liability derivative	(220)	(735)
Other long-term liabilities | Interest Rate Swap
Fair value of cash flow hedges
Total liability derivative	(4)	0
Other long-term liabilities | Foreign currency derivatives
Fair value of cash flow hedges
Total liability derivative	$ (296)	$ (1,055)

Derivative Instruments - Notion

Derivative Instruments - Notional Amounts (Details) € in Thousands, £ in Thousands, $ in Thousands	Sep. 30, 2020GBP (£)	Sep. 30, 2020EUR (€)	Sep. 30, 2020USD ($)	Dec. 31, 2019GBP (£)	Dec. 31, 2019EUR (€)	Dec. 31, 2019USD ($)
Foreign Exchange Forward [Member]
Notional amounts of outstanding derivatives instruments designated as cash flow hedges
Notional amount | £	£ 92,225			£ 50,575
Foreign Exchange Option [Member]
Notional amounts of outstanding derivatives instruments designated as cash flow hedges
Notional amount	£ 42,115	€ 0		£ 43,415	€ 1,200
Interest Rate Swap
Notional amounts of outstanding derivatives instruments designated as cash flow hedges
Notional amount | $			$ 70,000			$ 34,354

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
2026 Notes		$ 0
Total long-term debt and finance lease obligations	$ 905,448	603,020
Recurring | Level 2 | Carrying Value
2026 Notes	746,920	593,476
Seller Note	37,222	0
Other long-term debt and finance lease obligations	121,306	9,544
Total long-term debt and finance lease obligations	905,448	603,020
Recurring | Level 2 | Fair Value
2026 Notes	793,125	644,250
Seller Note	38,467	0
Other long-term debt and finance lease obligations	121,306	9,544
Total long-term debt and finance lease obligations	$ 952,898	$ 653,794

Long-Term Debt and Finance Le_3

Long-Term Debt and Finance Lease Obligations - Capital Lease Obligation Table (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Long-term debt		$ 0
Finance leases	$ 14,306	7,538
Total long-term debt and finance lease obligations	905,448	603,020
Less current portion of long-term debt and finance lease obligations	(11,611)	(6,590)
Long-term debt and finance lease obligations, excluding current installments	893,837	596,430
Debt Instrument, Unamortized Discount		2,800
Revolving credit commitments
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Outstanding borrowings	105,000	0
Letter of credit outstanding	31,000	0
Seller Note
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Long-term debt	37,222
Other loans
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Long-term debt	2,000	2,006
Finance leases
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Finance leases	14,306	7,538
Senior notes
Long-term Debt and Lease Obligation, Including Current Maturities [Abstract]
Long-term debt	746,920	593,476
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ 3,100	$ 6,500

Long-Term Debt and Finance Le_4

Long-Term Debt and Finance Lease Obligations - Narrative (Details) - USD ($) $ in Millions	Jul. 15, 2020	Sep. 30, 2020	Jul. 01, 2020	Dec. 31, 2019
2026 Notes
Long term debt and finance lease obligations
Aggregate principal	$ 150			$ 600
Debt Instrument, Interest Rate, Stated Percentage				6.50%
Debt Instrument, Redemption Price, Percentage	103.75%
Approximate net proceeds received	$ 153.6
Revolving credit commitments
Long term debt and finance lease obligations
Outstanding borrowings		$ 105		$ 0
Letter of credit outstanding		$ 31		$ 0
Seller Note
Long term debt and finance lease obligations
Debt Instrument, Interest Rate, Stated Percentage			2.50%
Promissory note remaining principal balance			$ 40
Carrying value			$ 36.9

Related-Party Transactions - Sc

Related-Party Transactions - Schedule of Related Party Amounts (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Related Party Transaction [Line Items]
MSA Fee Waivers			$ 13,963	$ 18,749
Partners' capital | Hamlet JV MSA Fee Waiver
Related Party Transaction [Line Items]
MSA Fee Waivers	$ 200	$ 800	1,500	1,700
Other revenue
Related Party Transaction [Line Items]
Related party revenue	0	496	1,264	1,323
Cost of goods sold
Related Party Transaction [Line Items]
Related party expenses	25,361	26,300	101,357	80,921
General and administrative expenses
Related Party Transaction [Line Items]
Related party expenses	$ 6,196	$ 7,439	$ 20,832	$ 22,998

Related-Party Transactions - Na

Related-Party Transactions - Narrative (Details) MT in Thousands	Apr. 02, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Sep. 30, 2020USD ($)MT	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Related Party Transaction [Line Items]
MSA fee waivers					$ 13,963,000	$ 18,749,000
Finished goods		$ 22,435,000			22,435,000		$ 2,718,000
Cost of goods sold		200,009,000	$ 130,939,000		517,212,000	430,973,000
Related-party management services agreement fees		6,196,000	7,439,000		20,832,000	22,998,000
Increase to Partners' capital accounts				$ (50,000,000)
Enviva FiberCo LLC
Related Party Transaction [Line Items]
Costs of cover fees		0			0
Purchase Of Wood Pellets and Deficiency Fee Costs Net		48,701			600,000
Purchase of raw materials		2,400,000			4,600,000
Related-party payables | Enviva FiberCo LLC
Related Party Transaction [Line Items]
Purchase of raw materials						300,000
MSAs
Related Party Transaction [Line Items]
Finished goods		2,774,000			2,774,000		419,000
Related-party payables		7,077,000			7,077,000		18,703,000
Cost of goods sold		22,952,000	17,764,000		53,465,000	51,477,000
Related-party management services agreement fees		6,196,000	7,439,000		20,832,000	22,998,000
Hamlet JV MSA Fee Waiver | Partners' capital
Related Party Transaction [Line Items]
Fee waived	$ 2,700,000
MSA fee waivers		200,000	800,000		1,500,000	1,700,000
First EVA MSA Fee Waiver
Related Party Transaction [Line Items]
Fee waived	$ 13,000,000
Increase to Partners' capital accounts					3,500,000
Make-Whole agreement
Related Party Transaction [Line Items]
Purchase Of Wood Pellets and Deficiency Fee Costs Net					25,200,000
Finished goods							500,000
Interim services agreement
Related Party Transaction [Line Items]
Related-party receivables, net		16,600,000			$ 16,600,000
Second EVA MSA Fee Waiver
Related Party Transaction [Line Items]
MSA fee waivers				$ 5,000,000
Increase to Partners' capital accounts			2,300,000			5,000,000
Third EVA MSA Fee Waiver | Partners' capital
Related Party Transaction [Line Items]
MSA fee waivers		$ 9,000,000
Greenwood Contract
Related Party Transaction [Line Items]
Annual volume of wood pellets to be purchased | MT					550
Wood pellets purchased			11,300,000		$ 18,800,000	35,500,000
Costs of cover fees			1,000,000		300,000	4,300,000
Purchase Of Wood Pellets and Deficiency Fee Costs Net					$ 18,100,000	31,200,000
Greenwood Contract | Finished goods inventory
Related Party Transaction [Line Items]
Finished goods							$ 1,500,000
Greenwood Contract | Cost of goods sold
Related Party Transaction [Line Items]
Purchase Of Wood Pellets and Deficiency Fee Costs Net						29,700,000
Terminal Services Agreement
Related Party Transaction [Line Items]
Annual volume of wood pellets to be purchased | MT					125
Terminal Services Agreement | Other revenue
Related Party Transaction [Line Items]
Costs of cover fees			$ 500,000		$ 1,300,000	$ 1,300,000

Partners' Capital - Narrative (

Partners' Capital - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 30, 2020	Aug. 05, 2020	Jun. 23, 2020	Apr. 29, 2020	Jan. 29, 2020	Oct. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 18, 2020
Partners' Capital
Partners' Capital Account, Units, Sold in Private Placement			6,153,846
Shares Issued, Price Per Share in Private Placement											$ 32.50
Proceeds from Issuance of Private Placement			$ 200,000
Net Proceeds From Issuance Of Private Placement			$ 190,800
Equity issuance costs											$ 9,200
Distribution to General Partner									100.00%
Distribution Per Unit (in dollars per unit)		$ 0.7650		$ 0.6800	$ 0.6750	$ 0.6700	$ 0.7750	$ 0.6700	$ 2.2200	$ 1.9750
Total Cash Distribution		$ 30,400		$ 22,900	$ 22,700	$ 22,400
Total Payment to General Partner for Incentive Distribution Rights		$ 7,500		$ 3,500	$ 3,300	$ 3,100
Minimum | General Partner Interest
Partners' Capital
Quarterly distribution of operating surplus (as a percent)									15.00%
Maximum | General Partner Interest
Partners' Capital
Quarterly distribution of operating surplus (as a percent)									50.00%
Subsequent Event
Partners' Capital
Distribution Per Unit (in dollars per unit)	$ 0.7750
Total Cash Distribution	$ 30,800
Total Payment to General Partner for Incentive Distribution Rights	$ 7,900

Equity-Based Awards - Schedule

Equity-Based Awards - Schedule of Phantom Unit Awards (Details)	9 Months Ended
	Sep. 30, 2020$ / sharesshares
Affiliate Grants
Units
Nonvested at the beginning of the period (in units) | shares	1,309,556
Granted (in units) | shares	937,600
Forfeitures (in units) | shares	(223,229)
Vested (in units) | shares	(247,167)
Nonvested at the end of the period (in units) | shares	1,776,760
Weighted- Average Grant Date Fair Value (per unit)
Nonvested at the beginning of the period (in dollars per unit) | $ / shares	$ 28.88
Granted (in dollars per unit) | $ / shares	37.99
Forfeitures (in dollar per unit) | $ / shares	31.96
Vested (in dollars per unit) | $ / shares	25.47
Nonvested at the end of the period (in dollars per unit) | $ / shares	$ 33.78
Affiliate Grants | Time-Based Phantom Units
Units
Nonvested at the beginning of the period (in units) | shares	874,286
Granted (in units) | shares	550,540
Forfeitures (in units) | shares	(120,176)
Vested (in units) | shares	(193,522)
Nonvested at the end of the period (in units) | shares	1,111,128
Weighted- Average Grant Date Fair Value (per unit)
Nonvested at the beginning of the period (in dollars per unit) | $ / shares	$ 28.90
Granted (in dollars per unit) | $ / shares	37.97
Forfeitures (in dollar per unit) | $ / shares	32.97
Vested (in dollars per unit) | $ / shares	25.49
Nonvested at the end of the period (in dollars per unit) | $ / shares	$ 33.55
Affiliate Grants | Performance-Based Phantom Units
Units
Nonvested at the beginning of the period (in units) | shares	435,270
Granted (in units) | shares	387,060
Forfeitures (in units) | shares	(103,053)
Vested (in units) | shares	(53,645)
Nonvested at the end of the period (in units) | shares	665,632
Weighted- Average Grant Date Fair Value (per unit)
Nonvested at the beginning of the period (in dollars per unit) | $ / shares	$ 28.84
Granted (in dollars per unit) | $ / shares	38.02
Forfeitures (in dollar per unit) | $ / shares	30.78
Vested (in dollars per unit) | $ / shares	25.39
Nonvested at the end of the period (in dollars per unit) | $ / shares	$ 34.16
Director Grants | Time-Based Phantom Units
Units
Nonvested at the beginning of the period (in units) | shares	13,264
Granted (in units) | shares	14,987
Vested (in units) | shares	(13,264)
Nonvested at the end of the period (in units) | shares	14,987
Weighted- Average Grant Date Fair Value (per unit)
Nonvested at the beginning of the period (in dollars per unit) | $ / shares	$ 30.16
Granted (in dollars per unit) | $ / shares	38.37
Vested (in dollars per unit) | $ / shares	30.16
Nonvested at the end of the period (in dollars per unit) | $ / shares	$ 38.37

Equity-Based Awards - Narrative

Equity-Based Awards - Narrative (Details) - USD ($) $ in Thousands	Aug. 05, 2020	Feb. 28, 2019	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Equity-Based Awards
Payment for withholding tax				$ 3,869	$ 1,870
Affiliate Grants
Equity-Based Awards
Unrecognized estimated compensation cost			$ 17,500	17,500
Time-Based Phantom Units | Director Grants
Equity-Based Awards
Fair value of units granted	$ 100	$ 500
Unit based compensation expense			100	300
Unrecognized estimated compensation cost			$ 200	$ 200

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Reserves for uncertain tax positions	$ 0		$ 0
Provision for income tax	$ (275,000)	$ 0	$ (275,000)	$ 0

Net Income (Loss) per Limited_3

Net Income (Loss) per Limited Partner Unit - Basic and Diluted Table (Details) - shares	Sep. 30, 2020	Dec. 31, 2019
General Partner Interest
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
General partner units outstanding	0	0

Net Income (Loss) per Limited_4

Net Income (Loss) per Limited Partner Unit - Net Income Per Unit Table (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net Income (Loss) per Limited Partner Unit
Distributions declared	$ 38,690	$ 25,523	$ 102,898	$ 74,227
Earnings less than distributions	(38,150)	(17,275)	(87,931)	(79,925)
Net income (loss) available to partners	$ 540	$ 8,248	$ 14,967	$ (5,698)
Weighted-average common units outstanding—basic and diluted (in units)	39,767	33,457	35,814	31,230
Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax	$ (0.18)	$ 0.15	$ (0.11)	$ (0.44)
Common Units [Member]
Net Income (Loss) per Limited Partner Unit
Distributions declared	$ 30,821	$ 22,416	$ 84,100	$ 66,077
Earnings less than distributions	(38,150)	(17,275)	(87,931)	(79,925)
Net income (loss) available to partners	$ (7,329)	$ 5,141	$ (3,831)	$ (13,848)
Weighted-average common units outstanding—basic and diluted (in units)	39,767	33,457	35,814	31,230
Net income per limited partner unit—basic (in dollars per unit)	$ (0.18)		$ (0.11)
Net loss per limited partner unit—basic and diluted (in dollars per unit)		$ 0.15		$ (0.44)
General Partners [Member]
Net Income (Loss) per Limited Partner Unit
Distributions declared	$ 7,869	$ 3,107	$ 18,798	$ 8,150
Earnings less than distributions	0	0	0	0
Net income (loss) available to partners	$ 7,869	$ 3,107	$ 18,798	$ 8,150

Net Income (Loss) per Limited_5

Net Income (Loss) per Limited Partner Unit - Schedule of Cash Distribution Paid or Declared (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 30, 2020	Aug. 05, 2020	Apr. 29, 2020	Jan. 29, 2020	Oct. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Distribution Made to Limited Partner [Line Items]
Distribution Per Unit (in dollars per unit)		$ 0.7650	$ 0.6800	$ 0.6750	$ 0.6700	$ 0.7750	$ 0.6700	$ 2.2200	$ 1.9750
Total Cash Distribution		$ 30.4	$ 22.9	$ 22.7	$ 22.4
Total Payment to General Partner for Incentive Distribution Rights		$ 7.5	$ 3.5	$ 3.3	$ 3.1
Subsequent Event
Distribution Made to Limited Partner [Line Items]
Distribution Per Unit (in dollars per unit)	$ 0.7750
Total Cash Distribution	$ 30.8
Total Payment to General Partner for Incentive Distribution Rights	$ 7.9