Delek Logistics Partners (DKL) 10-Q 5 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-35721
Entity Registrant Name	DELEK LOGISTICS PARTNERS, LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-5379027
Entity Address, Address Line One	7102 Commerce Way
Entity Address, City or Town	Brentwood
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37027
City Area Code	615
Local Phone Number	771-6701
Title of 12(b) Security	Common Units Representing Limited Partnership Interests
Trading Symbol	DKL
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	false
Entity Shell Company	false
Entity Partnership Units Outstanding		43,459,063
Entity Central Index Key	0001552797
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 4,864	$ 4,243
Accounts receivable	18,421	15,676
Accounts receivable from related parties	0	5,932
Inventory	2,222	3,127
Other current assets	1,081	331
Total current assets	26,588	29,309
Property, plant and equipment:
Property, plant and equipment	704,905	692,282
Less: accumulated depreciation	(256,696)	(227,470)
Property, plant and equipment, net	448,209	464,812
Equity method investments	251,919	253,675
Operating lease right-of-use assets	22,911	24,199
Goodwill	12,203	12,203
Marketing Contract Intangible, net	118,380	123,788
Right-of-way	37,062	36,316
Other non-current assets	13,271	12,115
Total assets	930,543	956,417
Current liabilities:
Accounts payable	7,441	6,659
Accounts payable to related parties	44,574	0
Interest Payable	17,037	2,452
Excise and other taxes payable	3,798	4,969
Current portion of operating lease liabilities	7,364	8,691
Accrued expenses and other current liabilities	7,830	5,529
Total current liabilities	88,044	28,300
Non-current liabilities:
Long-term debt	901,404	992,291
Asset retirement obligations	6,361	6,015
Operating lease liabilities, net of current portion	15,489	15,418
Other non-current liabilities	23,998	22,694
Total non-current liabilities	947,252	1,036,418
Equity (Deficit):
Total equity (deficit)	(104,753)	(108,301)
Total liabilities and deficit	930,543	956,417
Common unitholders | Common- Public [Member]
Equity (Deficit):
Total equity (deficit)	165,281	164,614
Common unitholders | Common- Delek [Member]
Equity (Deficit):
Total equity (deficit)	$ (270,034)	$ (272,915)

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - shares	Sep. 30, 2021	Dec. 31, 2020
Common unitholders - public
Common unitholders, units issued	8,713,195	8,697,468
Common unitholders, units outstanding	8,713,195	8,697,468
Common unitholders - Delek
Common unitholders, units issued	34,745,868	34,745,868
Common unitholders, units outstanding	34,745,868	34,745,868

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net revenues:
Affiliates (1)	[1]	$ 123,519	$ 95,410	$ 308,435	$ 289,739
Third party		66,108	46,858	202,583	133,567
Net Revenues		189,627	142,268	511,018	423,306
Cost of sales:
Cost of materials and other		105,129	60,692	274,995	205,877
Operating expenses (excluding depreciation and amortization presented below)		16,830	13,694	45,201	39,271
Depreciation and amortization		9,666	8,931	29,393	22,957
Total cost of sales		131,625	83,317	349,589	268,105
Operating expenses (excluding depreciation and amortization presented below)		515	536	1,741	2,152
General and administrative expenses		6,141	6,122	17,018	16,973
Depreciation and amortization		490	528	1,469	1,495
Other operating expense (income), net		273	0	54	(107)
Total operating costs and expenses		139,044	90,503	369,871	288,618
Operating income		50,583	51,765	141,147	134,688
Interest expense, net		14,529	10,360	35,924	32,854
Income from equity method investments		(7,261)	(4,860)	(17,952)	(16,875)
Other (income) expense, net		(115)	105	(118)	103
Total non-operating expenses, net		7,153	5,605	17,854	16,082
Income before income tax (benefit) expense		43,430	46,160	123,293	118,606
Income tax (benefit) expense		(194)	(168)	156	67
Net income attributable to partners		43,624	46,328	123,137	118,539
Comprehensive income attributable to partners		43,624	46,328	123,137	118,539
Less: General partner's interest in net income, including incentive distribution rights	[2]	0	0	0	18,724
Limited partners' interest in net income		$ 43,624	$ 46,328	$ 123,137	$ 99,815
Weighted average limited partner units outstanding:
Cash distributions per limited partner unit (in dollars per share)		$ 0.950	$ 0.905	$ 3.800	$ 2.695
Common Units
Net income per limited partner unit:
Common units - (basic) (in dollars per share)		1	1.26	2.83	3.30
Common units - (diluted) (in dollars per share)		$ 1	$ 1.26	$ 2.83	$ 3.30
Weighted average limited partner units outstanding:
Common units - (basic) (in shares)		43,454,535	36,889,761	43,447,739	30,290,051
Common units - (diluted) (in shares)		43,468,289	36,894,043	43,457,857	30,292,261
[1]	See Note 3 for a description of our material affiliate revenue transactions.
[2]	See Note 3 for a description of the IDR Restructuring Transaction.

Condensed Consolidated Statem_2

Condensed Consolidated Statement of Partners' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands		Total		Delek Trucking [Member]	General Partner		General PartnerDelek Trucking [Member]	Common unitholders - publicLimited Partner		Common unitholders - DelekLimited Partner		Common unitholders - DelekLimited PartnerDelek Trucking [Member]
Beginning balance at Dec. 31, 2019		$ (151,119)			$ (5,042)			$ 164,436		$ (310,513)
Cash distributions		(97,508)	[1]	$ (47,558)	(27,635)	[1]	$ (951)	(23,653)	[1]	(46,220)	[1]	$ (46,607)
General partner units issued to maintain 2% interest		10			10
Net income attributable to partners		118,539			18,725			28,172		71,642
Delek Holdings Unit purchases								(4,979)		4,979
Issuance of units in connection with the Big Spring Gathering Assets Acquisition		109,513			2,190					107,323
Distribution to general partner for conversion of its economic interest and IDR elimination		(45,000)			(45,000)
Non-Cash Conversion Of Economic Interest And Idr Elimination, Partners Equity					57,702					(57,702)
Sponsor contribution of fixed assets		1,378								1,378
Other		291			1			337		(47)
Ending balance at Sep. 30, 2020		(111,454)			0			164,313		(275,767)
Beginning balance at Jun. 30, 2020		(78,315)			(3,224)			160,870		(235,961)
Cash distributions		(35,968)			(9,478)			(7,819)		(18,671)
Net income attributable to partners		46,328			0			11,258		35,070
Distribution to general partner for conversion of its economic interest and IDR elimination		(45,000)			(45,000)
Non-Cash Conversion Of Economic Interest And Idr Elimination, Partners Equity					57,702					(57,702)
Sponsor contribution of fixed assets		1,378								1,378
Other		123			0			4		119
Ending balance at Sep. 30, 2020		(111,454)			$ 0			164,313		(275,767)
Beginning balance at Dec. 31, 2020		(108,301)						164,614		(272,915)
Cash distributions		(120,399)						(24,153)		(96,246)
Net income attributable to partners		123,137						24,673		98,464
Issuance of units in connection with the Big Spring Gathering Assets Acquisition		0
Other		810						147		663
Ending balance at Sep. 30, 2021		(104,753)						165,281		(270,034)
Beginning balance at Jun. 30, 2021		(107,846)						164,679		(272,525)
Cash distributions	[2]	(40,898)						(8,237)		(32,661)
Net income attributable to partners		43,624						8,745		34,879
Other		367						94		273
Ending balance at Sep. 30, 2021		$ (104,753)						$ 165,281		$ (270,034)
[1]	Cash distributions include $0.1 million and a nominal amount related to distribution equivalents on vested phantom units for the nine months ended September 30, 2021 and 2020, respectively.
[2]	Cash distributions include a nominal amount related to distribution equivalents on vested phantom units for the three months ended September 30, 2021

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Partners' Equity (Deficit) (Unaudited) (Parentheticals) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Distribution equivalents on vested phantom units	$ 0.1	$ 0.1
General Partnership
General partner's ownership interest (as percent)	0.00%	2.00%

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows ( Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 123,137	$ 118,539
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	30,862	24,452
Non-cash lease expense	6,967	2,236
Amortization of customer contract intangible assets	5,408	5,408
Amortization of deferred revenue	(1,475)	(1,418)
Amortization of deferred financing costs and debt discount	2,169	1,786
Income from equity method investments	(17,952)	(16,875)
Dividends from equity method investments	14,849	17,572
Other non-cash adjustments	1,413	1,495
Changes in assets and liabilities:
Accounts receivable	(2,745)	(4,268)
Inventories and other current assets	109	12,714
Accounts payable and other current liabilities	12,323	(7,638)
Accounts receivable/payable to related parties	47,483	(19,002)
Non-current assets and liabilities, net	(272)	(347)
Net cash provided by operating activities	222,276	134,654
Cash flows from investing activities:
Asset acquisitions from Delek Holdings, net of assumed liabilities	0	100,527
Purchases of property, plant and equipment	(12,352)	(6,918)
Proceeds from sales of property, plant and equipment	275	107
Purchases of intangible assets	746	0
Distributions from equity method investments	6,245	2,723
Equity method investment contributions	(1,393)	(11,804)
Net cash used in investing activities	(7,971)	(116,419)
Cash flows from financing activities:
Proceeds from issuance of additional units to maintain 2% General Partner interest	0	10
Distributions to general partner	0	(27,635)
Distributions to common unitholders - public	(24,153)	(23,653)
Distributions to common unitholders - Delek Holdings	(96,246)	(46,220)
Distributions to Delek Holdings unitholders and general partner related to Trucking Assets Acquisition	0	(47,558)
Distribution to general partner for conversion of its interest and IDR elimination	0	(45,000)
Proceeds from revolving credit facility	236,000	515,900
Payments on revolving credit facility	(721,700)	(343,600)
Proceeds from issuance of senior notes	400,000	0
Deferred financing costs paid in connection with debt issuances	(6,216)	0
Payments on financing lease liabilities	(1,369)	0
Net cash used in financing activities	(213,684)	(17,756)
Net increase in cash and cash equivalents	621	479
Cash and cash equivalents at the beginning of the period	4,243	5,545
Cash and cash equivalents at the end of the period	4,864	6,024
Cash paid during the period for:
Interest	19,170	26,895
Income taxes	0	141
Non-cash investing activities:
Increase (decrease) in accrued capital expenditures and other	1,638	(948)
Equity issuance to Delek Holdings unitholders in connection with Big Spring Gathering Assets Acquisition	0	109,513
Non-cash financing activities:
Non-cash lease liability arising from obtaining right of use assets during the period	8,750	16,644
Sponsor contribution of property, plant and equipment	$ 0	$ 1,378

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)	Aug. 12, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
General Partnership
General partner's ownership interest (as percent)	2.00%	0.00%	0.00%	0.00%	2.00%

Organization and Basis of Prese

Organization and Basis of Presentation	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation As used in this report, the terms "Delek Logistics Partners, LP," the "Partnership," "we," "us," or "our" may refer to Delek Logistics Partners, LP, one or more of its consolidated subsidiaries or all of them taken as a whole. The Partnership is a Delaware limited partnership formed in April 2012 by Delek US Holdings, Inc. ("Delek Holdings") and its subsidiary Delek Logistics GP, LLC, our general partner (our "general partner"). Effective August 13, 2020, the Partnership closed the transaction contemplated by a definitive exchange agreement with the general partner to eliminate all of the incentive distribution rights ("IDRs") held by the general partner and convert the 2% general partner interest into a non-economic general partner interest, such transaction the "IDR Restructuring Transaction." Effective May 1, 2020, the Partnership, through its wholly-owned subsidiary DKL Transportation, LLC, acquired Delek Trucking, LLC consisting of certain leased and owned tractors and trailers and related assets (the "Trucking Assets") from Delek Holdings, such transaction the "Trucking Assets Acquisition." In addition, effective March 31, 2020, the Partnership, through its wholly-owned subsidiary DKL Permian Gathering, LLC, acquired from Delek Holdings a crude oil gathering system and certain related assets, located in Howard, Borden and Martin Counties, Texas (the "Big Spring Gathering Assets"), such transaction the "Big Spring Gathering Assets Acquisition." Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted, although management believes that the disclosures herein are adequate to make the financial information presented not misleading. Our unaudited condensed consolidated financial statements have been prepared in conformity with U.S. GAAP applied on a consistent basis with those of the annual audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 (our "Annual Report on Form 10-K"), filed with the U.S. Securities and Exchange Commission (the "SEC") on March 1, 2021 and in accordance with the rules and regulations of the SEC. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2020 included in our Annual Report on Form 10-K. All adjustments necessary for a fair presentation of the financial position and the results of operations for the interim periods presented have been included. All intercompany accounts and transactions have been eliminated. Such intercompany transactions do not include those with Delek Holdings or our general partner, which are presented as related parties in these accompanying condensed consolidated financial statements. All adjustments are of a normal, recurring nature. Operating results for the interim period should not be viewed as representative of results that may be expected for any future interim period or for the full year. Reclassifications Certain immaterial reclassifications have been made to prior period presentation in order to conform to the current period presentation. Risks and Uncertainties Arising from the COVID-19 Pandemic U.S. economic activity continued on a recovery trend during the quarter ended September 30, 2021. The spike in number of new cases due to the COVID-19 delta variant did not slow down the economic recovery. Towards the end of third quarter the trend started to show a reduction in the number of new COVID-19 cases and in the number of COVID-19 related hospitalizations. However, we remain subject to heightened levels of uncertainty related to the on-going impact of the COVID-19 outbreak that developed into a pandemic in March 2020 (the “COVID-19 Pandemic” or the “Pandemic”), and the spread of new variants of the virus. Some of the restrictions imposed in the prior year to prevent its spread have been eased and the government vaccination campaigns continue to yield positive results in terms of increase in the number of people who have been inoculated, a critical requirement to continue removing restrictions. Additional government measures to curb the spread of the virus include the proposed government mandates for employers to require mandatory vaccination or COVID-19 weekly testing for employees. Compared to the prior year, the economic recovery trends in the three and nine months ended September 30, 2021 included a resumption of flights by major airlines and increased motor vehicle use. This has in turn resulted in increased demand and market prices for crude oil and other products, particularly refined petroleum products from which we receive revenue for transporting and storing. We also saw an increase in demand and sales volumes in our wholesale marketing business during the three and nine months ended September 30, 2021. Nonetheless, there remains continued uncertainty about the duration and future impact of the COVID-19 Pandemic. Our business model, which includes executing minimum volume commitment contracts with our major customers, to an extent, cushioned us from the impact of the COVID-19 Pandemic in 2020 and during the three and nine months ended September 30, 2021. Uncertainties related to the impact of the COVID-19 Pandemic and other events exist that could impact our future results of operations and financial position, the nature of which and the extent to which are currently unknown. To the extent these uncertainties have been identified and are believed to have an impact on our current period results of operations or financial position based on the requirements for assessing such financial statement impact under GAAP, we have considered them in the preparation of our financial statements as of and for the three and nine months ended September 30, 2021. New Accounting Pronouncements Adopted During 2021 ASU 2020-01, Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 In January 2020, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Codification (" ASU") 2020-01 which is intended to clarify interactions between the guidance to account for certain equity securities under Topics 321, 323 and 815, and improve current GAAP by reducing diversity in practice and increasing comparability of accounting. The pronouncement is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2020, and early adoption is permitted. We adopted this guidance prospectively on January 1, 2021. The adoption of this guidance did not have a material impact on our business, financial condition or results of operations. Accounting Pronouncements Not Yet Adopted ASU No. 2021-05, Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments In July 2021, the FASB issued an amendment which is intended to provide lease classification guidance for Lessors on how to classify and account for a lease with variable lease payments that do not depend on a reference index or a rate. The amendments are effective for fiscal years beginning after December 15, 2021, for all entities, and interim periods within those fiscal years for public business entities and interim periods within fiscal years beginning after December 15, 2022, for all other entities. The Partnership is evaluating the impact of this guidance but does not believe this new guidance will have a material impact on its condensed consolidated financial statements and related disclosures. ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting (Topic 848) In March 2020, the FASB issued an amendment which is intended to provide temporary optional expedients and exceptions to GAAP guidance on contracts, hedge accounting and other transactions affected by the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank rates. This guidance is effective for all entities any time beginning on March 12, 2020 through December 31, 2022 and may be applied from the beginning of an interim period that includes the issuance date of the ASU. The Partnership is evaluating the impact of this guidance but does not currently expect that adopting this new guidance will have a material impact on its condensed consolidated financial statements and related disclosures.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2021
Acquisitions [Abstract]
Acquisitions	Acquisitions Trucking Assets Acquisition Effective May 1, 2020, the Partnership, through its wholly-owned subsidiary DKL Transportation, LLC, acquired Delek Trucking, LLC consisting of certain leased and owned tractors and trailers and related assets from Delek Holdings. See our Annual Report on Form 10-K for further information. The total consideration was approximately $48.0 million in cash. We financed this acquisition with a combination of cash on hand and borrowings under the DKL Credit Facility (as defined in Note 7). The Trucking Assets are recorded in our pipelines and transportation segment and include approximately 150 trucks and trailers, which are primarily leased or owned, respectively. In connection with the closing of the transaction, Delek Holdings, the Partnership and various of their respective subsidiaries entered into a Transportation Services Agreement (the “Trucking Assets TSA Agreement”). Under the Trucking Assets TSA Agreement, the Partnership will gather, coordinate pickup of, transport and deliver petroleum products for Delek Holdings, as well as provide ancillary services as requested. The transaction and related agreements were approved by the Conflicts Committee of the Board of Directors of the Partnership's general partner, which is comprised solely of independent directors. See Note 3 for more detailed descriptions of these agreements. The Trucking Assets Acquisition was considered a transaction between entities under common control. Accordingly, the Trucking Assets were recorded at amounts based on Delek Holdings' historical carrying value as of the acquisition date. The carrying value of the Trucking Assets as of the acquisition date was $13.3 million, consisting of $0.5 million of owned assets and a $12.8 million right of use asset for leased assets. The right of use asset offsets with an equivalent operating lease liability. Prior periods have not been recast as these assets do not constitute a business in accordance with Accounting Standard Update 2017-01, Clarifying the Definition of a Business ("ASU 2017-01"). We capitalized approximately $0.3 million of acquisition costs related to the Trucking Assets Acquisition. Big Spring Gathering Assets Acquisition Effective March 31, 2020, the Partnership, through its wholly-owned subsidiary DKL Permian Gathering, LLC, acquired the Big Spring Gathering Assets from Delek Holdings, located in Howard, Borden and Martin Counties, Texas. See our Annual Report on Form 10-K for further information. The total consideration was comprised of $100.0 million in cash and 5.0 million common units representing limited partner interest in us. We financed the cash component of this acquisition with borrowings from the DKL Credit Facility (as defined in Note 7). The Big Spring Gathering Assets are recorded in our pipelines and transportation segment and include: • Crude oil pipelines; • Approximately 200 miles of gathering systems; • Approximately 65 Tank battery connections; • Terminals (total storage of approximately 650,000 bbls); and • Applicable rights-of-way. In connection with the closing of the transaction, Delek Holdings, the Partnership and various of their respective subsidiaries entered into a Throughput and Deficiency Agreement (the “Big Spring T&D Agreement”). Under the Big Spring T&D Agreement, the Partnership will operate and maintain the Big Spring Gathering Assets connecting Delek Holdings' interests in and to certain crude oil with the Partnership's Big Spring, Texas terminal and provide gathering, transportation and other related services with respect to any and all crude produced from shipper’s and certain other producers’ respective interests for delivery at the Big Spring Terminal. The transaction and related agreements were approved by the Conflicts Committee of the Board of Directors of the Partnership's general partner, which is comprised solely of independent directors. See Note 3 for more detailed descriptions of these agreements. The Big Spring Gathering Assets Acquisition was considered a transaction between entities under common control. Accordingly, the Big Spring Gathering Assets were recorded at amounts based on Delek Holdings' historical carrying value as of the acquisition date. The carrying value of the Big Spring Gathering Assets as of the acquisition date was $209.5 million. Pursuant to the common control guidance, the 5.0 million units issued (which had a closing market price of $9.10 per unit on the transaction date) were recorded in equity at $109.5 million, representing the net carrying value of the Big Spring Gathering Assets purchased of $209.5 million less the $100.0 million cash consideration. Prior periods have not been recast as these assets do not constitute a business in accordance with ASU 2017-01. We capitalized approximately $0.7 million of acquisition costs related to the Big Spring Gathering Assets Acquisition.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Commercial Agreements The Partnership has a number of long-term, fee-based commercial agreements with Delek Holdings under which we provide various services, including crude oil gathering and crude oil, intermediate and refined products transportation and storage services, and marketing, terminalling and offloading services to Delek Holdings. Most of these agreements have an initial term ranging from five Under each of these agreements, we are required to maintain the capabilities of our pipelines and terminals, such that Delek Holdings may throughput and/or store, as the case may be, specified volumes of crude oil, intermediate and refined products. To the extent that Delek Holdings is prevented by our failure to maintain such capacities to throughput or from storing such specified volumes for more than 30 days per year, Delek Holdings' minimum throughput commitment will be reduced proportionately and prorated for the portion of the quarter during which the specified throughput capacity was unavailable, and/or the storage fee will be reduced, prorated for the portion of the month during which the specified storage capacity was unavailable. Such reduction would occur even if actual throughput or storage amounts were below the minimum volume commitment levels. See our Annual Report on Form 10-K for a more complete description of our material commercial agreements and other agreements with Delek Holdings. Other Agreements with Delek Holdings In addition to the commercial agreements described above, the Partnership has entered into the following agreements with Delek Holdings: Omnibus Agreement The Partnership entered into an omnibus agreement with Delek Holdings, Delek Logistics Operating, LLC, Lion Oil Company, LLC (formerly known as Lion Oil Company) and certain of the Partnership's and Delek Holdings' other subsidiaries on November 7, 2012, which has been amended from time to time in connection with acquisitions from Delek Holdings (collectively, as amended, the "Omnibus Agreement"). The Omnibus Agreement governs the provision of certain operational services and reimbursement obligations, among other matters, between the Partnership and Delek Holdings, and obligates us to pay an annual fee of $4.7 million to Delek Holdings for its provision of centralized corporate services to the Partnership. Pursuant to the terms of the Omnibus Agreement, we are reimbursed by Delek Holdings for certain capital expenditures. There were no reimbursements by Delek Holdings during the three and nine months ended September 30, 2021. During the three and nine months ended September 30, 2020, we were reimbursed by Delek Holdings for certain capital expenditures of a nominal amount and $0.6 million, respectively. These amounts are recorded in other long-term liabilities and are amortized to revenue over the life of the underlying revenue agreement corresponding to the asset. Additionally, we are reimbursed or indemnified, as the case may be, for costs incurred in excess of certain amounts related to certain asset failures, pursuant to the terms of the Omnibus Agreeme nt. As of September 30, 2021, there was no receivable from related parties for these matters. These reimbursements are recorded as reductions to operating expense. We were reimbursed nominal amounts for these matters in each of the three and nine month periods ended September 30, 2021 and 2020. Other Transactions The Partnership manages long-term capital projects on behalf of Delek Holdings pursuant to a construction management and operating agreement (the "DPG Management Agreement") for the construction of gathering systems in the Permian Basin. The majority of the gathering systems have been constructed, however, additional costs pertaining to a pipeline connection that was not acquired by the Partnership continue to be incurred and are still subject to the terms of the DPG Management Agreement. The Partnership is also considered the operator for the project and is responsible for oversight of the project design, procurement and construction of project segments and provides other related services. Pursuant to the terms of the DPG Management Agreement, the Partnership receives a monthly operating services fee and a construction services fee, which includes the Partnership's direct costs of managing the project plus an additional percentage fee of the construction costs of each project segment. The agreement extends through December 2022. Total fees paid to the Partnership were $0.4 million and $1.2 million for the three and nine months ended September 30, 2021, respectively, and $0.4 million and $1.6 million for the three and nine months ended September 30, 2020, respectively, which are recorded in affiliate revenue in our condensed consolidated statements of income. Additionally, the Partnership incurs the costs in connection with the construction of the assets and is subsequently reimbursed by Delek Holdings. Amounts reimbursable by Delek Holdings are recorded in accounts receivable from related parties. Unregistered Sale of Equity Securities In connection with the Partnership's issuance of the common limited partner units under the Big Spring Gathering Assets Acquisition and in accordance with the Partnership's First Amended and Restated Agreement of Limited Partnership, as amended (the "Prior Partnership Agreement", as amended and restated by the Partnership's Second Amended and Restated Agreement of Limited Partnership (the "Partnership Agreement")), the Partnership issued general partner units to the general partner in an amount necessary to maintain its 2% general partner interest as defined in the Prior Partnership Agreement. The sale and issuance of the Additional Units (as defined below) and such general partner units in connection with the Big Spring Gathering Assets Acquisition is exempt from registration under Section 4(a)(2) of the Securities Act of 1933, as amended. Additionally, in March 2020, Delek Marketing & Supply, LLC ("Delek Marketing"), a wholly owned subsidiary of Delek Holdings, repurchased 451,822 common limited partner units from an unaffiliated investor pursuant to a Common Unit Purchase Agreement between Delek Marketing and such investor. The purchase price of the units amounted to approximately $5.0 million. As a result of the transaction, Delek Holdings' ownership in our outstanding limited partner units increased to 64.5% from 62.6%. Delek Holdings' ownership in our common limited partner units was further increased to 70.5% as a result of the issuance of 5.0 million common limited partner units (the “Additional Units”) in connection with the Big Spring Gathering Assets Acquisition described above. In August 2020, Delek Holdings' ownership in our common limited partner units was further increased to approximately 80.0% in connection with the IDR Restructuring Transaction, where the Partnership issued 14.0 million of the Partnership's newly issued common limited partner units to Delek Holdings. Amendment No. 2 to the First Amended and Restated Agreement of Limited Partnership of Delek Logistics Partners, LP On March 31, 2020, in connection with the completion of the Big Spring Gathering Assets Acquisition, the board of directors of the general partner adopted Amendment No. 2 (“Amendment No. 2”) to the Prior Partnership Agreement, effective upon adoption. Amendment No. 2 amended the Prior Partnership Agreement to provide for a waiver of distributions in respect of the IDRs for General Partner Additional Units ("GP Additional Units") associated with the 5.0 million Additional Units for at least two years, through at least the distribution for the quarter ending March 31, 2022 ( the “IDR Waiver”). The IDR Waiver essentially reduced the distribution made to the holders of the IDRs during this period, as the holders would not receive a share of the distribution made on the GP Additional Units. The IDRs were eliminated in the IDR Restructuring Transaction on August 13, 2020. Conversion of GP Economic Interest and Elimination of IDRs On August 13, 2020, we closed the transaction contemplated by a definitive exchange agreement with Delek Holdings to eliminate all of the IDRs held by the general partner and convert the 2% general partner economic interest into a non-economic general partner interest, all in exchange for 14.0 million of the Partnership's newly issued common limited partner units and $45.0 million cash. Contemporaneously, Delek Holdings purchased a 5.2% ownership interest in our general partner from certain affiliates who were also members of our general partner's management and board of directors. Delek Holdings now owns a 100% interest in the general partner and owns approximately 34.7 million common limited partner units, representing approximately 80% of the Partnership's outstanding common limited partner units. To implement the transaction, our Prior Partnership Agreement was amended and restated. Summary of Transactions Revenues from affiliates consist primarily of revenues from gathering, transportation, storage, offloading, Renewable Identification Numbers ("RINs"), wholesale marketing and products terminalling services provided primarily to Delek Holdings based on regulated tariff rates or contractually based fees and product sales. Affiliate operating expenses are primarily comprised of amounts we reimburse Delek Holdings, or our general partner, as the case may be, for the services provided to us under the Partnership Agreement. These expenses could also include reimbursement and indemnification amounts from Delek Holdings, as provided under the Omnibus Agreement. Additionally, the Partnership is required to reimburse Delek Holdings for direct or allocated costs and expenses incurred by Delek Holdings on behalf of the Partnership and for charges Delek Holdings incurred for the management and operation of our logistics assets, including an annual fee for various centralized corporate services, which are included in general and administrative expenses. In addition to these transactions, we purchase refined products and bulk biofuels from Delek Holdings, the costs of which are included in cost of materials and other. A summary of revenue, purchases from affiliates and expense transactions with Delek Holdings and its affiliates are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 123,519 $ 95,410 $ 308,435 $ 289,739 Purchases from Affiliates $ 89,852 $ 45,186 $ 229,810 $ 155,679 Operating and maintenance expenses $ 10,656 $ 10,330 $ 30,217 $ 33,397 General and administrative expenses $ 2,681 $ 3,250 $ 6,794 $ 9,322 Quarterly Cash Distributions Prior to August 13, 2020, our common and general partner unitholders and the holders of IDRs were entitled to receive quarterly distributions of available cash as determined by the board of directors of our general partner in accordance with the terms and provisions of our Prior Partnership Agreement. Pursuant to the IDR Restructuring Transaction on August 13, 2020, the general partner will no longer receive any cash distributions. In February, May and August 2021, we paid quarterly cash distributions of $39.5 million, $40.0 million and $40.8 million, respectively, of which $31.6 million, $32.0 million and $32.7 million, respectively, were paid to Delek Holdings. In February, May and August 2020, we paid quarterly cash distributions of $30.6 million, $30.9 million and $36.0 million, respectively, of which $22.6 million, $23.2 million and $28.1 million, respectively, were paid to Delek Holdings and our general partner. On October 26, 2021, our board of directors declared a quarterly cash distribution totaling $41.3 million, based on the available cash as of the date of determination, for the end of the third quarter of 2021, payable on November 10, 2021, of which $33.0 million is expected to be paid to Delek Holdings.

Revenues (Notes)

Revenues (Notes)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenues	Revenues We generate revenue by charging fees for gathering, transporting, offloading and storing crude oil; for storing intermediate products and feed stocks; for distributing, transporting and storing refined products; for marketing refined products output of Delek Holdings' Tyler and Big Spring refineries; and for wholesale marketing in the West Texas area. A significant portion of our revenue is derived from long-term commercial agreements with Delek Holdings, which provide for annual fee adjustments for increases or decreases in the CPI, PPI or the FERC index (refer to Note 3 for a more detailed description of these agreements). In addition to the services we provide to Delek Holdings, we also generate substantial revenue from crude oil, intermediate and refined products transportation services for, and terminalling and marketing services to, third parties primarily in Texas, New Mexico, Tennessee and Arkansas. Certain of these services are provided pursuant to contractual agreements with third parties. Payment terms require customers to pay shortly after delivery and do not contain significant financing components. The majority of our commercial agreements with Delek Holdings meet the definition of a lease because: (1) performance of the contracts is dependent on specified property, plant or equipment and (2) it is remote that one or more parties other than Delek Holdings will take more than a minor amount of the output associated with the specified property, plant or equipment. As part of our adoption of ASC 842, Leases ("ASC 842"), we applied the permitted practical expedient to not separate lease and non-lease components under the predominance principle to designated asset classes associated with the provision of logistics services. We have determined that the predominant component of the related agreements currently in effect is the lease component. Therefore, the combined component is accounted for under the applicable lease accounting guidance. Of our $448.2 million net property, plant, and equipment balance as of September 30, 2021, $428.0 million is subject to operating leases under our commercial agreements. These agreements do not include options for the lessee to purchase our leasing equipment, nor do they include any material residual value guarantees or material restrictive covenants. The following table represents a disaggregation of revenue for each reportable segment for the periods indicated (in thousands): Three Months Ended September 30, 2021 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 5,323 $ 139 $ 5,462 Service Revenue - Affiliate 4,484 9,241 13,725 Product Revenue - Third Party — 60,645 60,645 Product Revenue - Affiliate — 34,325 34,325 Lease Revenue - Affiliate (1) 66,395 9,075 75,470 Total Revenue $ 76,202 $ 113,425 $ 189,627 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2021, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2021 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 12,021 $ 358 $ 12,379 Service Revenue - Affiliate 9,505 25,877 35,382 Product Revenue - Third Party — 190,204 190,204 Product Revenue - Affiliate — 54,453 54,453 Lease Revenue - Affiliate (1) 190,086 28,514 218,600 Total Revenue $ 211,612 $ 299,406 $ 511,018 (1) Net of $5.4 million of amortization expense for the nine months ended September 30, 2021, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended September 30, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,035 $ 163 $ 3,198 Service Revenue - Affiliate 5,633 8,708 14,341 Product Revenue - Third Party — 43,660 43,660 Product Revenue - Affiliate — 5,844 5,844 Lease Revenue - Affiliate (1) 62,811 12,414 75,225 Total Revenue $ 71,479 $ 70,789 $ 142,268 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2020, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 14,587 $ 502 $ 15,089 Service Revenue - Affiliate 13,848 24,500 38,348 Product Revenue - Third Party — 118,478 118,478 Product Revenue - Affiliate — 64,067 64,067 Lease Revenue - Affiliate (1) 154,437 32,887 187,324 Total Revenue $ 182,872 $ 240,434 $ 423,306 (1) Net of $5.4 million of amortization expense for the nine months ended September 30, 2020, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. As of September 30, 2021, we expect to recognize $1.5 billion in future lease revenues, for periods up to financial year 2030, related to our unfulfilled performance obligations pertaining to the minimum volume commitments and capacity utilization under the non-cancelable terms of our commercial agreements with Delek Holdings. Most of these agreements have an initial term ranging from five Our unfulfilled performance obligations as of September 30, 2021 were as follows (in thousands): Remainder of 2021 $ 68,285 2022 272,345 2023 266,395 2024 190,134 2025 and thereafter 732,925 Total expected revenue on remaining performance obligations $ 1,530,084

Net Income Per Unit

Net Income Per Unit	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net Income Per Unit	Net Income Per Unit Basic net income per unit applicable to limited partners is computed by dividing limited partners' interest in net income by the weighted-average number of outstanding common units. Prior to August 13, 2020, we had more than one class of participating securities and used the two class method to calculate the net income per unit applicable to the limited partners. The classes of participating units prior to August 13, 2020 consisted of limited partner units, general partner units and IDRs. Pursuant to the IDR Restructuring Transaction, the IDRs were eliminated and the 2% general partner economic interest was converted to a non-economic general partner interest. Effective August 13, 2020, the common limited partner units are the only participating security for cash distributions. Refer to Note 3 for additional details. The two-class method was based on the weighted-average number of common units outstanding during the period. Basic net income per unit applicable to limited partners was computed by dividing limited partners’ interest in net income, after deducting our general partner’s 2% interest and IDRs, by the weighted-average number of outstanding common units. Our net income was allocated to our general partner and limited partners in accordance with their respective partnership percentages after giving effect to priority income allocations for IDRs, which were held by our general partner pursuant to our Prior Partnership Agreement. Earnings in excess of distributions were allocated to our general partner and limited partners based on their respective ownership interests. The IDRs were paid following the close of each quarter. Pursuant to Amendment No. 2 to the Prior Partnership Agreement, an agreement was reached for a waiver of distributions in respect of the IDRs for the GP Additional Units associated with the 5.0 million Additional Units issued in connection with the Big Spring Gathering Assets Acquisition for at least two years, through at least the distribution for the quarter ending March 31, 2022. Refer to Note 3 for additional details. Diluted net income per unit applicable to common limited partners includes the effects of potentially dilutive units on our common units. As of September 30, 2021, the only potentially dilutive units outstanding consist of unvested phantom units. Our distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below represents total cash distributions applicable to the period in which the distributions are earned. The expected date of distribution for the distributions earned during the period ended September 30, 2021 is November 10, 2021. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income allocations used in the calculation of net income per unit. The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net income attributable to partners $ 43,624 $ 46,328 $ 123,137 $ 118,539 Less: General partner's distribution (including IDRs) (1) — — — 18,618 Less: Limited partners' distribution 41,286 39,307 122,100 87,536 Earnings in excess (deficit) of distributions $ 2,338 $ 7,021 $ 1,037 $ 12,385 General partner's earnings: Distributions (including IDRs) (1) $ — $ — $ — $ 18,618 Allocation of earnings in excess (deficit) of distributions — — — 106 Total general partner's earnings $ — $ — $ — $ 18,724 Limited partners' earnings on common units: Distributions $ 41,286 $ 39,307 $ 122,100 $ 87,536 Allocation of earnings in excess (deficit) of distributions 2,338 7,021 1,037 12,279 Total limited partners' earnings on common units $ 43,624 $ 46,328 $ 123,137 $ 99,815 Weighted average limited partner units outstanding: Common units - basic 43,454,535 36,889,761 43,447,739 30,290,051 Common units - diluted 43,468,289 36,894,043 43,457,857 30,292,261 Net income per limited partner unit: Common units - basic $ 1.00 $ 1.26 $ 2.83 $ 3.30 Common units - diluted (2) $ 1.00 $ 1.26 $ 2.83 $ 3.30 (1) Prior to August 13, 2020, general partner distributions (including IDRs) consisted of the 2.0% general partner interest and IDRs, which represented the right of the general partner to receive increasing percentages of quarterly distributions of available cash from operating surplus in excess of 0.43125 per unit per quarter. In connection with the IDR Restructuring Transaction on August 13, 2020, the IDRs were eliminated and the general partner interest became a non-economic general partner interest. (2) There were no outstanding common units excluded from the diluted earnings per unit calculation for the three and nine months ended September 30, 2021 and 2020.

Inventory

Inventory	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventory	InventoryInventories consisted of $2.2 million and $3.1 million of refined petroleum products as of September 30, 2021 and December 31, 2020, respectively, each of which are net of lower of cost or net realizable value reserve of a nominal amount. Inventory is stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis. We recognize lower of cost or net realizable value charges as a component of cost of materials and other in the consolidated statements of income and comprehensive income.

Long-Term Obligations

Long-Term Obligations	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Long-Term Obligations	Long-Term Obligations 7.125% Senior Notes due 2028 On May 24, 2021, the Partnership and our wholly owned subsidiary Delek Logistics Finance Corp. ("Finance Corp." and together with the Partnership, the "Issuers") issued $400.0 million in aggregate principal amount of 7.125% senior notes due 2028 (the "2028 Notes") at par, pursuant to an indenture with U.S. Bank, National Association as trustee. The 2028 Notes are general unsecured senior obligations of the Issuers and are unconditionally guaranteed jointly and severally on a senior unsecured basis by the Partnership's subsidiaries other than Finance Corp., and will be unconditionally guaranteed on the same basis by certain of the Partnership’s future subsidiaries. The 2028 Notes rank equal in right of payment with all existing and future senior indebtedness of the Issuers, and senior in right payment to any future subordinated indebtedness of the Issuers. The 2028 Notes will mature on June 1, 2028, and interest on the 2028 Notes is payable semi-annually in arrears on each June 1 and December 1, commencing December 1, 2021. At any time prior to June 1, 2024, the Issuers may redeem up to 35% of the aggregate principal amount of the 2028 Notes with the net cash proceeds of one or more equity offerings by the Partnership at a redemption price of 107.125% of the redeemed principal amount, plus accrued and unpaid interest, if any, subject to certain conditions and limitations. Prior to June 1, 2024, the Issuers may also redeem all or part of the 2028 Notes at a redemption price of the principal amount plus accrued and unpaid interest, if any, plus a "make whole" premium, subject to certain conditions and limitations. In addition, beginning on June 1, 2024, the Issuers may, subject to certain conditions and limitations, redeem all or part of the 2028 Notes, at a redemption price of 103.563% of the redeemed principal for the twelve-month period beginning on June 1, 2024, 101.781% for the twelve-month period beginning on June 1, 2025, and 100.00% beginning on June 1, 2026 and thereafter, plus accrued and unpaid interest, if any. In the event of a change of control, accompanied or followed by a ratings downgrade within a certain period of time, subject to certain conditions and limitations, the Issuers will be obligated to make an offer for the purchase of the 2028 Notes from holders at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. As of September 30, 2021, we had $400.0 million in outstanding principal amount under the 2028 Notes, and the effective interest rate was 7.41%. Outstanding borrowings under the 2028 Notes are net of deferred financing costs amounting to $5.9 million as of September 30, 2021. DKL Credit Facility On September 28, 2018, the Partnership entered into a third amended and restated senior secured revolving credit agreement (hereafter, the "DKL Credit Facility") with Fifth Third Bank ("Fifth Third"), as administrative agent, and a syndicate of lenders with total lender commitments of $850.0 million. The DKL Credit Facility contains a dual currency borrowing tranche that permits draw downs in U.S. or Canadian dollars. The DKL Credit Facility also contains an accordion feature whereby the Partnership can increase the size of the credit facility to an aggregate of $1.0 billion, subject to receiving increased or new commitments from lenders and the satisfaction of certain other conditions precedent. The obligations under the DKL Credit Facility remain secured by first priority liens on substantially all of the Partnership's and its subsidiaries' tangible and intangible assets. In connection with the IDR Restructuring Transaction, the Partnership entered into a First Amendment to the DKL Credit Facility (the "First Amendment") which, among other things, permitted the exchange of the IDRs and the general partner interest in the Partnership for the non-economic general partner interest, the newly issued limited partner interests in the Partnership, plus $45.0 million in cash. The First Amendment also modified the total leverage and senior leverage ratios (as defined in the DKL Credit Facility) calculations to reduce the total funded debt (as defined in the DKL Credit Facility) component thereof by the total amount of unrestricted consolidated cash and cash equivalents on the balance sheet of the Partnership and its subsidiaries up to $20.0 million. The DKL Credit Facility has a maturity date of September 28, 2023. Borrowings denominated in U.S. dollars bear interest at either a U.S. dollar prime rate, plus an applicable margin, or the LIBOR, plus an applicable margin, at the election of the borrowers. Borrowings denominated in Canadian dollars bear interest at either a Canadian dollar prime rate, plus an applicable margin, or the Canadian Dealer Offered Rate, plus an applicable margin, at the election of the borrowers. The applicable margin in each case and the fee payable for any unused revolving commitments vary based upon the Partnership's most recent total leverage ratio calculation delivered to the lenders, as called for and defined under the terms of the DKL Credit Facility. At September 30, 2021, the weighted average interest rate for our borrowings under the facility was approximately 2.62%. Additionally, the DKL Credit Facility requires us to pay a leverage ratio dependent quarterly fee on the average unused revolving commitment. As of September 30, 2021, this fee was 0.35% per year. As of September 30, 2021, we had $260.9 million of outstanding borrowings under the DKL Credit Facility, with no letters of credit in place. Unused credit commitments under the DKL Credit Facility as of September 30, 2021 were $589.1 million. 6.750% Senior Notes Due 2025 On May 23, 2017, the Partnership and Delek Logistics Finance Corp., a Delaware corporation and a wholly-owned subsidiary of the Partnership (“Finance Corp.” and together with the Partnership, the “Issuers”), issued $250.0 million in aggregate principal amount of 6.75% senior notes due 2025 (the “2025 Notes”) at a discount. The 2025 Notes are general unsecured senior obligations of the Issuers. The 2025 Notes are unconditionally guaranteed jointly and severally on a senior unsecured basis by the Partnership's existing subsidiaries (other than Finance Corp., the "Guarantors") and will be unconditionally guaranteed on the same basis by certain of the Partnership’s future subsidiaries. The 2025 Notes rank equal in right of payme nt with all existing and future senior indebtedness of the Issuers, and senior in right of payment to any future subordinated indebtedness of the Issuers. Interest on the 2025 Notes is payable semi-annually in arrears on each May 15 and November 15. Th e Issuers may, subject to certain conditions and limitations, redeem all or part of the 2025 Notes at a redemption price of 103.375% of the redeemed principal during the twelve-month period beginning on May 15, 2021, 101.688% for the twelve-month period beginning on May 15, 2022 and 100.00% beginning on May 15, 2023 and thereafter, plus accrued and unpaid interest, if any. In the event of a change of control, accompanied or followed by a ratings downgrade within a certain period of time, subject to certain conditions and limitations, the Issuers will be obligated to make an offer for the purchase of the 2025 Notes from holders at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. On April 25, 2018, we made an offer to exchange the 2025 Notes and the related guarantees that were validly tendered and not validly withdrawn for an equal principal amount of exchange notes that are freely tradeable, as required under the terms of the original indenture. The terms of the exchange notes that were issued in May 2018 as a result of the exchange (also referred to as the "2025 Notes") are substantially identical to the terms of the original 2025 Notes. As of September 30, 2021, we had $250.0 million in outstanding principal amount of the 2025 Notes. As of September 30, 2021, the effective interest rate related to the 2025 Notes was approximately 7.21%.

Equity

Equity	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Equity	Equity We had 8,713,195 common limited partner units held by the public outstanding as of September 30, 2021. Additionally, as of September 30, 2021, Delek Holdings owned an 80.0% limited partner interest in us, consisting of 34,745,868 common limited partner units. Effective August 13, 2020, the Partnership closed on the IDR Restructuring Transaction. As part of this transaction, we expensed approximately $1.1 million of transaction costs. Refer to Note 3 for additional details. In August 2020, we filed a shelf registration statement with the SEC, which subsequently became effective, for the proposed re-sale or other disposition from time to time by Delek Holdings of up to 14.0 million of our common limited partner units. As of September 30, 2021, Delek Holdings had not sold any securities under this shelf registration statement and we will not receive any proceeds from the sale of securities by Delek Holdings. Equity Activity The table below summarizes the changes in the number of limited partner units outstanding from December 31, 2020 through September 30, 2021. Common - Public Common - Delek Holdings Total Balance at December 31, 2020 8,697,468 34,745,868 43,443,336 Unit-based compensation awards (1) 15,727 — 15,727 Balance at September 30, 2021 8,713,195 34,745,868 43,459,063 (1) Unit-based compensation awards are presented net of 3,237 units withheld for taxes as of September 30, 2021. Issuance of Additional Securities Our Partnership Agreement authorizes us to issue an unlimited number of additional partnership securities for the consideration and on the terms and conditions determined by our general partner without the approval of the unitholders. Costs associated with the issuance of securities are allocated to all unitholders' capital accounts based on their ownership interest at the time of issuance. Allocations of Net Income Our Partnership Agreement contains provisions for the allocation of net income and loss to the unitholders. For purposes of maintaining partner capital accounts, the Partnership Agreement specifies that items of income and loss shall be allocated among the partners in accordance with their respective percentage interest. Prior to August 13, 2020, normal allocations were made according to percentage interests after giving effect to priority income allocations in an amount equal to incentive cash distributions allocated 100% to our general partner. Effective August 13, 2020, the IDRs were eliminated and the 2% general partner economic interest was converted to a non-economic general partner interest that no longer receives cash distributions. Refer to Note 3 for additional details. The following table presents the allocation of the general partner's interest in net income (in thousands, except percentage of ownership interest): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net income attributable to partners $ 43,624 $ 46,328 $ 123,137 $ 118,539 Less: General partner's IDRs — — — (17,632) Net income available to partners $ 43,624 $ 46,328 $ 123,137 $ 100,907 General partner's ownership interest — % — % — % 2.0 % General partner's allocated interest in net income $ — $ — — $ 1,092 General partner's IDRs — — — 17,632 Total general partner's interest in net income $ — $ — $ — $ 18,724 Incentive Distribution Rights ("IDRs") Effective August 13, 2020, the Partnership closed on the IDR Restructuring Transaction and the general partner no longer receives any cash distributions. Prior to August 13, 2020, our general partner was entitled to 2.0% of all quarterly distributions. Our general partner had the right, but not the obligation, to contribute up to a proportionate amount of capital to us to maintain its current general partner interest. Our general partner held IDRs that entitled it to receive increasing percentages, up to a maximum of 48.0%, of the cash we distributed from operating surplus (as defined in our Prior Partnership Agreement) in excess of $0.43125 per unit per quarter. The maximum distribution was 48.0% and did not include any distributions that our general partner or its affiliates may have received on common or general partner units that it owns. As of August 12, 2020, the IDRs held by our general partner were entitled to receive the maximum distribution. Pursuant to Amendment No. 2 to the Prior Partnership Agreement, prior to the IDR Restructuring Transaction, an agreement was reached for a waiver of distributions in respect of the IDRs associated with the 5.0 million Additional Units for at least two years, through at least the distribution for the quarter ending March 31, 2022 (the "IDR Waiver"). Refer to Note 3 for additional details. Cash Distributions Our Partnership Agreement sets forth the calculation to be used to determine the amount and priority of available cash distributions that our limited partner unitholders will receive. The cash distributions for periods before August 13, 2020 include distributions to the 2.0% general partner interest which was converted to a non-economic general partner interest and IDRs which were permanently eliminated. Our distributions earned with respect to a given period are declared subsequent to quarter end. The table below summarizes the quarterly distributions related to our quarterly financial results: Quarter Ended Total Quarterly Distribution Per Limited Partner Unit Total Cash Distribution Date of Distribution Unitholders Record Date September 30, 2020 $ 0.905 $ 39,308 November 12, 2020 November 6, 2020 December 31, 2020 $ 0.910 $ 39,533 February 9, 2021 February 2, 2021 March 31, 2021 $ 0.920 $ 39,968 May 14, 2021 May 10, 2021 June 30, 2021 $ 0.940 $ 40,846 August 11, 2021 August 5, 2021 September 30, 2021 $ 0.950 $ 41,286 November 10, 2021 (1) November 5, 2021 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to limited partners for the three and nine months ended September 30, 2021 and 2020 are set forth in the table below. Distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below presents total cash distributions applicable to the period in which the distributions are earned (in thousands, except per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 General partner's distributions: General partner's distributions $ — $ — $ — $ 986 General partner's IDRs — — — 17,632 Total general partner's distributions — — — 18,618 Limited partners' distributions: Common limited partners' distributions 41,286 39,307 122,100 87,536 Total cash distributions $ 41,286 $ 39,307 $ 122,100 $ 106,154 Cash distributions per limited partner unit $ 0.950 $ 0.905 $ 3.800 $ 2.695

Equity Based Compensation

Equity Based Compensation	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Equity Based Compensation	Equity Based Compensation The Delek Logistics GP, LLC 2012 Long-Term Incentive Plan (the "LTIP") was adopted by the Delek Logistics GP, LLC board of directors in connection with the completion of our initial public offering in November 2012. The LTIP is administered by the Conflicts Committee of the board of our general partner. Equity-based compensation expense is included in general and administrative expenses in the accompanying condensed consolidated statements of income and comprehensive income and is immaterial for the three and nine months ended September 30, 2021 and 2020. On June 9, 2021, the LTIP was amended to increase the number of units representing limited partner interest in the Partnership (the "Common Units") authorized for issuance by 300,000 Common Units to 912,207 Common Units. Additionally, the term of the LTIP was extended to June 9, 2031.

Equity Method Investments

Equity Method Investments	9 Months Ended
	Sep. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments In May 2019, the Partnership, through its wholly owned indirect subsidiary DKL Pipeline, LLC (“DKL Pipeline”), entered into a Contribution and Subscription Agreement (the “Contribution Agreement”) with Plains Pipeline, L.P. (“Plains”) and Red River Pipeline Company LLC (“Red River”). Pursuant to the Contribution Agreement, DKL Pipeline contributed $124.7 million, substantially all of which was financed by borrowings under the DKL Credit Facility, to Red River in exchange for a 33% membership interest in Red River and DKL Pipeline’s admission as a member of Red River. In addition, we contributed $0.4 million of startup capital pursuant to the Amended and Restated Limited Liability Company Agreement. During the third quarter of 2020, Red River, which owns a crude oil pipeline running from Cushing, Oklahoma to Longview, Texas, completed a planned expansion project to increase the pipeline capacity and commenced operations on the completed expansion project on October 1, 2020. We contributed $3.5 million related to such expansion project in May 2019 and during 2020 made additional capital contributions of $12.2 million based on capital calls received. During the nine months ended September 30, 2021, we made additional capital contributions totaling $1.4 million based on capital calls received. Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): September 30, 2021 December 31, 2020 Current Assets $ 25,444 $ 13,488 Non-current Assets $ 406,051 $ 413,259 Current liabilities $ 11,786 $ 7,789 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 19,349 $ 13,919 $ 46,136 $ 35,888 Gross profit $ 12,027 $ 8,189 $ 26,367 $ 21,251 Operating income $ 11,871 $ 8,020 $ 25,866 $ 20,717 Net income $ 11,853 $ 8,022 $ 25,843 $ 20,768 We have two joint ventures that have constructed separate crude oil pipeline systems and related ancillary assets, which are serving third parties and subsidiaries of Delek Holdings. We own a 50% membership interest in the entity formed with an affiliate of Plains All American Pipeline, L.P. ("CP LLC") to operate one of these pipeline systems (the "Caddo Pipeline") and a 33% membership interest in the entity formed with Rangeland Energy II, LLC ("Rangeland Energy") to operate the other pipeline system (the "Rio Pipeline"). During 2018, Rangeland Energy was acquired by Andeavor (which was subsequently acquired by Marathon Petroleum Corporation) and the legal entity in which we have an equity investment became Andeavor Logistics Rio Pipeline LLC ("Andeavor Logistics"). Combined summarized unaudited financial information for these two equity method investees on a 100% basis is shown below (in thousands): September 30, 2021 December 31, 2020 Current assets $ 20,790 $ 20,763 Non-current assets $ 245,560 $ 253,862 Current liabilities $ 3,731 $ 1,496 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 12,090 $ 14,227 $ 35,316 $ 42,412 Gross profit $ 6,757 $ 9,634 $ 20,462 $ 28,468 Operating income $ 6,300 $ 9,135 $ 19,022 $ 26,999 Net Income $ 6,300 $ 9,136 $ 19,023 $ 27,023 The Partnership's investments in these three entities were financed through a combination of cash from operations and borrowings under the DKL Credit Facility. As of September 30, 2021 and December 31, 2020, the Partnership's investment balance in these joint ventures was $251.9 million and $253.7 million, respectively. We do not consolidate any part of the assets or liabilities or operating results of our equity method investees. Our share of net income or loss of the investees will increase or decrease, as applicable, the carrying value of our investments in unconsolidated affiliates. With respect to our equity method investments, we determined that these entities do not represent variable interest entities and consolidation is not required. We have the ability to exercise significant influence over each of these joint ventures through our participation in the management committees, which make all significant decisions. However, since all significant decisions require the consent of the other investor(s) without regard to economic interest, we have determined that we have joint control and have applied the equity method of accounting. Our investment in these joint ventures is reflected in our pipelines and transportation segment.

Segment Data

Segment Data	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Data	Segment Data We aggregate our operating segments into two reportable segments: (i) pipelines and transportation and (ii) wholesale marketing and terminalling: • The assets and investments reported in the pipeline and transportation segment provide crude oil gathering and crude oil, intermediate and refined products transportation and storage services to Delek Holdings' refining operations and independent third parties. • The wholesale marketing and terminalling segment provides marketing services for the refined products output of the Delek Holdings' refineries, engages in wholesale activity at our terminals and terminals owned by third parties, whereby we purchase light product for sale and exchange to third parties, and provides terminalling services at our refined products terminals to independent third parties and Delek Holdings. Our operating segments adhere to the accounting policies used for our consolidated financial statements. Our operating segments are managed separately because each segment requires different industry knowledge, technology and marketing strategies. Decisions concerning the allocation of resources and assessment of operating performance are made based on this segmentation. Management measures the operating performance of each of its reportable segments based on segment contribution margin. Segment contribution margin is defined as net revenues less cost of materials and other and operating expenses, excluding depreciation and amortization. The following is a summary of business segment operating performance as measured by contribution margin for the periods indicated: (in thousands) Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Pipelines and Transportation Net revenues: Affiliate $ 70,879 $ 68,444 $ 199,591 $ 168,285 Third party 5,323 3,035 12,021 14,587 Total pipelines and transportation 76,202 71,479 211,612 182,872 Cost of materials and other 15,170 14,342 42,595 31,622 Operating expenses (excluding depreciation and amortization) 13,680 10,749 34,710 31,936 Segment contribution margin $ 47,352 $ 46,388 $ 134,307 $ 119,314 Capital spending $ 2,570 $ 2,552 $ 9,946 $ 3,424 Wholesale Marketing and Terminalling Net revenues: Affiliate (1) $ 52,640 $ 26,966 $ 108,844 $ 121,454 Third party 60,785 43,823 190,562 118,980 Total wholesale marketing and terminalling 113,425 70,789 299,406 240,434 Cost of materials and other 89,959 46,350 232,400 174,255 Operating expenses (excluding depreciation and amortization) 3,665 3,481 12,232 9,487 Segment contribution margin $ 19,801 $ 20,958 $ 54,774 $ 56,692 Capital spending $ 1,566 $ 676 $ 4,580 $ 3,494 Consolidated Net revenues: Affiliate $ 123,519 $ 95,410 $ 308,435 $ 289,739 Third party 66,108 46,858 202,583 133,567 Total Consolidated 189,627 142,268 511,018 423,306 Cost of materials and other 105,129 60,692 274,995 205,877 Operating expenses (excluding depreciation and amortization presented below) 17,345 14,230 46,942 41,423 Contribution margin $ 67,153 $ 67,346 189,081 176,006 General and administrative expenses 6,141 6,122 17,018 16,973 Depreciation and amortization 10,156 9,459 30,862 24,452 Other operating expense (income), net 273 — 54 (107) Operating income $ 50,583 $ 51,765 $ 141,147 $ 134,688 Capital spending $ 4,136 $ 3,228 $ 14,526 $ 6,918 (1) Affiliate revenue for the wholesale marketing and terminalling segment is presented net of amortization expense related to a customer contract intangible asset. See Note 4 for additional information. The following table summarizes the total assets for each segment as of September 30, 2021 and December 31, 2020 (in thousands). Assets for each segment include property, plant and equipment, equity method investments, intangible assets and inventory. September 30, 2021 December 31, 2020 Pipelines and transportation $ 692,901 $ 723,317 Wholesale marketing and terminalling 213,277 206,918 Other 24,365 26,182 Total assets 930,543 $ 956,417 Property, plant and equipment and accumulated depreciation as of September 30, 2021 and depreciation expense by reporting segment for the three and nine months ended September 30, 2021 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 589,729 $ 115,176 $ 704,905 Less: accumulated depreciation (199,867) (56,829) (256,696) Property, plant and equipment, net $ 389,862 $ 58,347 $ 448,209 Depreciation expense for the three months ended September 30, 2021 $ 8,056 $ 2,100 $ 10,156 Depreciation expense for the nine months ended September 30, 2021 $ 24,918 $ 5,944 $ 30,862 In accordance with ASC 360, Property, Plant & Equipment

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesFor tax purposes, each partner of the Partnership is required to take into account its share of income, gain, loss and deduction in computing its federal and state income tax liabilities, regardless of whether cash distributions are made to such partner by the Partnership. The taxable income reportable to each partner takes into account differences between the tax basis and fair market value of our assets, financial reporting bases of assets and liabilities, the acquisition price of such partner's units and the taxable income allocation requirements under our Partnership Agreement. The Partnership is not a taxable entity for federal income tax purposes. While most states do not impose an entity level tax on partnership income, the Partnership is subject to entity level tax in both Tennessee and Texas.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation In the ordinary conduct of our business, we are from time to time subject to lawsuits, investigations and claims, including environmental claims and employee-related matters. Although we cannot predict with certainty the ultimate resolution of lawsuits, investigations and claims asserted against us, including civil penalties or other enforcement actions, we do not believe that any currently pending legal proceeding or proceedings to which we are a party will have a material adverse effect on our financial statements. See "Crude Oil and Other Releases" below for discussion of an enforcement action. Environmental, Health and Safety We are subject to extensive federal, state and local environmental and safety laws and regulations enforced by various agencies, including the Environmental Protection Agency (the "EPA"), the United States Department of Transportation, the Occupational Safety and Health Administration, as well as numerous state, regional and local environmental, safety and pipeline agencies. These laws and regulations govern the discharge of materials into the environment, waste management practices and pollution prevention measures, as well as the safe operation of our pipelines and the safety of our workers and the public. Numerous permits or other authorizations are required under these laws and regulations for the operation of our terminals, pipelines, salt wells, trucks and related operations, and may be subject to revocation, modification and renewal. These laws and permits raise potential exposure to future claims and lawsuits involving environmental and safety matters, which could include soil and water contamination, air pollution, personal injury and property damage allegedly caused by substances which we handled, used, released or disposed of, transported, or that relate to pre-existing conditions for which we have assumed responsibility. We believe that our current operations are in substantial compliance with existing environmental and safety requirements. However, there have been and we expect that there will continue to be ongoing discussions about environmental and safety matters between us and federal and state authorities, including notices of violations, citations and other enforcement actions, some of which have resulted or may result in changes to operating procedures and in capital expenditures. While it is often difficult to quantify future environmental or safety related expenditures, we anticipate that continuing capital investments and changes in operating procedures will be required to comply with existing and new requirements, as well as evolving interpretations and more strict enforcement of existing laws and regulations. Releases of hydrocarbons or hazardous substances into the environment could, to the extent the event is not insured, or is not a reimbursable event under the Omnibus Agreement, subject us to substantial expenses, including costs to respond to, contain and remediate a release, to comply with applicable laws and regulations and to resolve claims by third parties for personal injury, property damage or natural resources damages. Crude Oil and Other Releases During the nine months ended September 30, 2021, there was one significant release of finished product, involving one of our pipelines and it occurred in August 2021. This release of finished product from our Greenville pipeline occurred near Dixon, Texas (the "Greenville Dixon Release"). Cleanup operations, site maintenance and remediation on this release are currently on-going where such costs incurred as of September 30, 2021 totaled $0.3 million. Additionally, as of September 30, 2021 we have accrued $2.4 million for remediation and other such matters related to this release. The affected area is currently being treated to bring it to acceptable residential levels protective of groundwater. On October 3, 2019, a release of diesel fuel involving one of our pipelines occurred near Sulphur Springs, Texas (the "Sulphur Springs Release"). Cleanup operations and site maintenance and remediation on this release have been substantially completed where such costs incurred totaled $7.1 million during 2019 and $0.5 million during 2020. In the fourth quarter of 2020 we submitted an actual property assessment report that assessed site conditions and recommended closure of the site. Closure of the site was approved in the first quarter of 2021. The ground water monitoring wells were removed in the second quarter of 2021. We filed suit in January 2020 against a third party contractor, seeking damages related to this release; two related actions were filed in November and December 2020 by and against the contractor's insurance company seeking judgments related to insurance coverage. We have not received notification that any legal action with respect to fines and penalties will be pursued by the regulatory agencies. For other releases that occurred in prior years, we have received regulatory closure or a majority of the cleanup and remediation efforts are substantially complete. We expect regulatory closure in 2021 for the release sites that have not yet received it and do not anticipate material costs associated with any fines or penalties or to complete activities that may be needed to achieve regulatory closure. Regulatory authorities could require additional remediation based on the results of our remediation efforts. We may incur additional expenses as a result of further scrutiny by regulatory authorities and continued compliance with laws and regulations to which our assets are subject. As of September 30, 2021, we have accrued $0.3 million for remediation and other such matters related to these releases. Expenses incurred for the remediation of these crude oil and other releases are included in operating expenses in our condensed consolidated statements of income and comprehensive income. The majority of our releases have been subsequently reimbursed by Delek Holdings pursuant to the terms of the Omnibus Agreement, with the exception of the Sulphur Springs Release and the Greenville Dixon Release noted above as they are not covered under the Omnibus Agreement. Reimbursements are recorded as a reduction to operating expense. We do not believe the total costs associated with these events, whether alone or in the aggregate, including any fines or penalties and net of available insurance, indemnification or reimbursement, will have a material adverse effect upon our business, financial condition or results of operations.

Leases

Leases	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Leases	Leases We lease certain pipeline and transportation equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. Our leases do not have any outstanding renewal options. Certain leases also include options to purchase the leased equipment. Certain of our lease agreements include rates based on equipment usage and others include rate inflationary indices based increases. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The following table presents additional information related to our operating leases in accordance ASC 842: Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2021 2020 2021 2020 Lease Cost (1) Operating lease cost $ 3,659 $ 2,587 $ 9,768 $ 5,113 Short-term lease cost 484 382 1,262 1,459 Variable lease costs 276 829 235 1,101 Total lease cost $ 4,419 $ 3,798 $ 11,265 $ 7,673 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (3,659) $ (2,587) $ (9,768) $ (5,113) Leased assets obtained in exchange for new operating lease liabilities $ 318 $ 865 $ 5,679 $ 16,644 Lease assets obtained in exchange for new financing liabilities $ 2,858 $ — $ 3,071 $ — September 30, 2021 September 30, 2020 Weighted-average remaining lease term (years) for operating leases 4.8 3.7 Weighted-average discount rate (2) operating leases 6.4 % 5.7 % Weighted-average remaining lease term (years) for financing lease 6.7 0.0 Weighted-average discount rate (2) financing lease 3.2 % — % (1) Includes an immaterial amount of financing lease. (2) Our discount rate is primarily based on our incremental borrowing rate in accordance with ASC 842

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsDistribution DeclarationOn October 26, 2021, our general partner's board of directors declared a quarterly cash distribution of $0.950 per unit, payable on November 10, 2021, to unitholders of record on November 5, 2021.

Organization and Basis of Pre_2

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted, although management believes that the disclosures herein are adequate to make the financial information presented not misleading. Our unaudited condensed consolidated financial statements have been prepared in conformity with U.S. GAAP applied on a consistent basis with those of the annual audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 (our "Annual Report on Form 10-K"), filed with the U.S. Securities and Exchange Commission (the "SEC") on March 1, 2021 and in accordance with the rules and regulations of the SEC. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2020 included in our Annual Report on Form 10-K
Consolidation	All adjustments necessary for a fair presentation of the financial position and the results of operations for the interim periods presented have been included. All intercompany accounts and transactions have been eliminated. Such intercompany transactions do not include those with Delek Holdings or our general partner, which are presented as related parties in these accompanying condensed consolidated financial statements. All adjustments are of a normal, recurring nature. Operating results for the interim period should not be viewed as representative of results that may be expected for any future interim period or for the full year.
Reclassifications	Certain immaterial reclassifications have been made to prior period presentation in order to conform to the current period presentation.
New Accounting Pronouncements	New Accounting Pronouncements Adopted During 2021 ASU 2020-01, Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 In January 2020, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Codification (" ASU") 2020-01 which is intended to clarify interactions between the guidance to account for certain equity securities under Topics 321, 323 and 815, and improve current GAAP by reducing diversity in practice and increasing comparability of accounting. The pronouncement is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2020, and early adoption is permitted. We adopted this guidance prospectively on January 1, 2021. The adoption of this guidance did not have a material impact on our business, financial condition or results of operations. Accounting Pronouncements Not Yet Adopted ASU No. 2021-05, Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments In July 2021, the FASB issued an amendment which is intended to provide lease classification guidance for Lessors on how to classify and account for a lease with variable lease payments that do not depend on a reference index or a rate. The amendments are effective for fiscal years beginning after December 15, 2021, for all entities, and interim periods within those fiscal years for public business entities and interim periods within fiscal years beginning after December 15, 2022, for all other entities. The Partnership is evaluating the impact of this guidance but does not believe this new guidance will have a material impact on its condensed consolidated financial statements and related disclosures. ASU 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting (Topic 848) In March 2020, the FASB issued an amendment which is intended to provide temporary optional expedients and exceptions to GAAP guidance on contracts, hedge accounting and other transactions affected by the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank rates. This guidance is effective for all entities any time beginning on March 12, 2020 through December 31, 2022 and may be applied from the beginning of an interim period that includes the issuance date of the ASU. The Partnership is evaluating the impact of this guidance but does not currently expect that adopting this new guidance will have a material impact on its condensed consolidated financial statements and related disclosures.

Earnings Per Share (Policies)

Earnings Per Share (Policies)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net Income Per Unit	The two-class method was based on the weighted-average number of common units outstanding during the period. Basic net income per unit applicable to limited partners was computed by dividing limited partners’ interest in net income, after deducting our general partner’s 2% interest and IDRs, by the weighted-average number of outstanding common units. Our net income was allocated to our general partner and limited partners in accordance with their respective partnership percentages after giving effect to priority income allocations for IDRs, which were held by our general partner pursuant to our Prior Partnership Agreement. Earnings in excess of distributions were allocated to our general partner and limited partners based on their respective ownership interests. The IDRs were paid following the close of each quarter.Pursuant to Amendment No. 2 to the Prior Partnership Agreement, an agreement was reached for a waiver of distributions in respect of the IDRs for the GP Additional Units associated with the 5.0 million Additional Units issued in connection with the Big Spring Gathering Assets Acquisition for at least two years, through at least the distribution for the quarter ending March 31, 2022. Refer to Note 3 for additional details.

Inventory (Policies)

Inventory (Policies)	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventory	Inventory is stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis.

Segment Reporting (Policies)

Segment Reporting (Policies)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Data	Our operating segments adhere to the accounting policies used for our consolidated financial statements. Our operating segments are managed separately because each segment requires different industry knowledge, technology and marketing strategies. Decisions concerning the allocation of resources and assessment of operating performance are made based on this segmentation. Management measures the operating performance of each of its reportable segments based on segment contribution margin. Segment contribution margin is defined as net revenues less cost of materials and other and operating expenses, excluding depreciation and amortization.
Property, Plant and Equipment, Impairment	In accordance with ASC 360, Property, Plant & Equipment

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2021
Related Party Transactions [Abstract]
Summary of Related Party Transactions	A summary of revenue, purchases from affiliates and expense transactions with Delek Holdings and its affiliates are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 123,519 $ 95,410 $ 308,435 $ 289,739 Purchases from Affiliates $ 89,852 $ 45,186 $ 229,810 $ 155,679 Operating and maintenance expenses $ 10,656 $ 10,330 $ 30,217 $ 33,397 General and administrative expenses $ 2,681 $ 3,250 $ 6,794 $ 9,322

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table represents a disaggregation of revenue for each reportable segment for the periods indicated (in thousands): Three Months Ended September 30, 2021 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 5,323 $ 139 $ 5,462 Service Revenue - Affiliate 4,484 9,241 13,725 Product Revenue - Third Party — 60,645 60,645 Product Revenue - Affiliate — 34,325 34,325 Lease Revenue - Affiliate (1) 66,395 9,075 75,470 Total Revenue $ 76,202 $ 113,425 $ 189,627 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2021, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2021 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 12,021 $ 358 $ 12,379 Service Revenue - Affiliate 9,505 25,877 35,382 Product Revenue - Third Party — 190,204 190,204 Product Revenue - Affiliate — 54,453 54,453 Lease Revenue - Affiliate (1) 190,086 28,514 218,600 Total Revenue $ 211,612 $ 299,406 $ 511,018 (1) Net of $5.4 million of amortization expense for the nine months ended September 30, 2021, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended September 30, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,035 $ 163 $ 3,198 Service Revenue - Affiliate 5,633 8,708 14,341 Product Revenue - Third Party — 43,660 43,660 Product Revenue - Affiliate — 5,844 5,844 Lease Revenue - Affiliate (1) 62,811 12,414 75,225 Total Revenue $ 71,479 $ 70,789 $ 142,268 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2020, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 14,587 $ 502 $ 15,089 Service Revenue - Affiliate 13,848 24,500 38,348 Product Revenue - Third Party — 118,478 118,478 Product Revenue - Affiliate — 64,067 64,067 Lease Revenue - Affiliate (1) 154,437 32,887 187,324 Total Revenue $ 182,872 $ 240,434 $ 423,306
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	Our unfulfilled performance obligations as of September 30, 2021 were as follows (in thousands): Remainder of 2021 $ 68,285 2022 272,345 2023 266,395 2024 190,134 2025 and thereafter 732,925 Total expected revenue on remaining performance obligations $ 1,530,084

Net Income Per Unit (Tables)

Net Income Per Unit (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Summary of Cash Distributions	The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net income attributable to partners $ 43,624 $ 46,328 $ 123,137 $ 118,539 Less: General partner's distribution (including IDRs) (1) — — — 18,618 Less: Limited partners' distribution 41,286 39,307 122,100 87,536 Earnings in excess (deficit) of distributions $ 2,338 $ 7,021 $ 1,037 $ 12,385 General partner's earnings: Distributions (including IDRs) (1) $ — $ — $ — $ 18,618 Allocation of earnings in excess (deficit) of distributions — — — 106 Total general partner's earnings $ — $ — $ — $ 18,724 Limited partners' earnings on common units: Distributions $ 41,286 $ 39,307 $ 122,100 $ 87,536 Allocation of earnings in excess (deficit) of distributions 2,338 7,021 1,037 12,279 Total limited partners' earnings on common units $ 43,624 $ 46,328 $ 123,137 $ 99,815 Weighted average limited partner units outstanding: Common units - basic 43,454,535 36,889,761 43,447,739 30,290,051 Common units - diluted 43,468,289 36,894,043 43,457,857 30,292,261 Net income per limited partner unit: Common units - basic $ 1.00 $ 1.26 $ 2.83 $ 3.30 Common units - diluted (2) $ 1.00 $ 1.26 $ 2.83 $ 3.30 (1) Prior to August 13, 2020, general partner distributions (including IDRs) consisted of the 2.0% general partner interest and IDRs, which represented the right of the general partner to receive increasing percentages of quarterly distributions of available cash from operating surplus in excess of 0.43125 per unit per quarter. In connection with the IDR Restructuring Transaction on August 13, 2020, the IDRs were eliminated and the general partner interest became a non-economic general partner interest.

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Equity Activity	The table below summarizes the changes in the number of limited partner units outstanding from December 31, 2020 through September 30, 2021. Common - Public Common - Delek Holdings Total Balance at December 31, 2020 8,697,468 34,745,868 43,443,336 Unit-based compensation awards (1) 15,727 — 15,727 Balance at September 30, 2021 8,713,195 34,745,868 43,459,063 (1) Unit-based compensation awards are presented net of 3,237 units withheld for taxes as of September 30, 2021.
Summary of Allocation of General Partner's Interest in Net Income	The following table presents the allocation of the general partner's interest in net income (in thousands, except percentage of ownership interest): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net income attributable to partners $ 43,624 $ 46,328 $ 123,137 $ 118,539 Less: General partner's IDRs — — — (17,632) Net income available to partners $ 43,624 $ 46,328 $ 123,137 $ 100,907 General partner's ownership interest — % — % — % 2.0 % General partner's allocated interest in net income $ — $ — — $ 1,092 General partner's IDRs — — — 17,632 Total general partner's interest in net income $ — $ — $ — $ 18,724
Summary of Distributions	The table below summarizes the quarterly distributions related to our quarterly financial results: Quarter Ended Total Quarterly Distribution Per Limited Partner Unit Total Cash Distribution Date of Distribution Unitholders Record Date September 30, 2020 $ 0.905 $ 39,308 November 12, 2020 November 6, 2020 December 31, 2020 $ 0.910 $ 39,533 February 9, 2021 February 2, 2021 March 31, 2021 $ 0.920 $ 39,968 May 14, 2021 May 10, 2021 June 30, 2021 $ 0.940 $ 40,846 August 11, 2021 August 5, 2021 September 30, 2021 $ 0.950 $ 41,286 November 10, 2021 (1) November 5, 2021 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to limited partners for the three and nine months ended September 30, 2021 and 2020 are set forth in the table below. Distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below presents total cash distributions applicable to the period in which the distributions are earned (in thousands, except per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 General partner's distributions: General partner's distributions $ — $ — $ — $ 986 General partner's IDRs — — — 17,632 Total general partner's distributions — — — 18,618 Limited partners' distributions: Common limited partners' distributions 41,286 39,307 122,100 87,536 Total cash distributions $ 41,286 $ 39,307 $ 122,100 $ 106,154 Cash distributions per limited partner unit $ 0.950 $ 0.905 $ 3.800 $ 2.695

Equity Method Investments (Tabl

Equity Method Investments (Tables)	9 Months Ended
	Sep. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]
Summary of Financial Information for Equity Method Investees	Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): September 30, 2021 December 31, 2020 Current Assets $ 25,444 $ 13,488 Non-current Assets $ 406,051 $ 413,259 Current liabilities $ 11,786 $ 7,789 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 19,349 $ 13,919 $ 46,136 $ 35,888 Gross profit $ 12,027 $ 8,189 $ 26,367 $ 21,251 Operating income $ 11,871 $ 8,020 $ 25,866 $ 20,717 Net income $ 11,853 $ 8,022 $ 25,843 $ 20,768 Combined summarized unaudited financial information for these two equity method investees on a 100% basis is shown below (in thousands): September 30, 2021 December 31, 2020 Current assets $ 20,790 $ 20,763 Non-current assets $ 245,560 $ 253,862 Current liabilities $ 3,731 $ 1,496 Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues $ 12,090 $ 14,227 $ 35,316 $ 42,412 Gross profit $ 6,757 $ 9,634 $ 20,462 $ 28,468 Operating income $ 6,300 $ 9,135 $ 19,022 $ 26,999 Net Income $ 6,300 $ 9,136 $ 19,023 $ 27,023

Segment Data (Tables)

Segment Data (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Summary Segment Data	The following is a summary of business segment operating performance as measured by contribution margin for the periods indicated: (in thousands) Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Pipelines and Transportation Net revenues: Affiliate $ 70,879 $ 68,444 $ 199,591 $ 168,285 Third party 5,323 3,035 12,021 14,587 Total pipelines and transportation 76,202 71,479 211,612 182,872 Cost of materials and other 15,170 14,342 42,595 31,622 Operating expenses (excluding depreciation and amortization) 13,680 10,749 34,710 31,936 Segment contribution margin $ 47,352 $ 46,388 $ 134,307 $ 119,314 Capital spending $ 2,570 $ 2,552 $ 9,946 $ 3,424 Wholesale Marketing and Terminalling Net revenues: Affiliate (1) $ 52,640 $ 26,966 $ 108,844 $ 121,454 Third party 60,785 43,823 190,562 118,980 Total wholesale marketing and terminalling 113,425 70,789 299,406 240,434 Cost of materials and other 89,959 46,350 232,400 174,255 Operating expenses (excluding depreciation and amortization) 3,665 3,481 12,232 9,487 Segment contribution margin $ 19,801 $ 20,958 $ 54,774 $ 56,692 Capital spending $ 1,566 $ 676 $ 4,580 $ 3,494 Consolidated Net revenues: Affiliate $ 123,519 $ 95,410 $ 308,435 $ 289,739 Third party 66,108 46,858 202,583 133,567 Total Consolidated 189,627 142,268 511,018 423,306 Cost of materials and other 105,129 60,692 274,995 205,877 Operating expenses (excluding depreciation and amortization presented below) 17,345 14,230 46,942 41,423 Contribution margin $ 67,153 $ 67,346 189,081 176,006 General and administrative expenses 6,141 6,122 17,018 16,973 Depreciation and amortization 10,156 9,459 30,862 24,452 Other operating expense (income), net 273 — 54 (107) Operating income $ 50,583 $ 51,765 $ 141,147 $ 134,688 Capital spending $ 4,136 $ 3,228 $ 14,526 $ 6,918 (1) Affiliate revenue for the wholesale marketing and terminalling segment is presented net of amortization expense related to a customer contract intangible asset. See Note 4 for additional information. The following table summarizes the total assets for each segment as of September 30, 2021 and December 31, 2020 (in thousands). Assets for each segment include property, plant and equipment, equity method investments, intangible assets and inventory. September 30, 2021 December 31, 2020 Pipelines and transportation $ 692,901 $ 723,317 Wholesale marketing and terminalling 213,277 206,918 Other 24,365 26,182 Total assets 930,543 $ 956,417 Property, plant and equipment and accumulated depreciation as of September 30, 2021 and depreciation expense by reporting segment for the three and nine months ended September 30, 2021 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 589,729 $ 115,176 $ 704,905 Less: accumulated depreciation (199,867) (56,829) (256,696) Property, plant and equipment, net $ 389,862 $ 58,347 $ 448,209 Depreciation expense for the three months ended September 30, 2021 $ 8,056 $ 2,100 $ 10,156 Depreciation expense for the nine months ended September 30, 2021 $ 24,918 $ 5,944 $ 30,862

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Lease, Cost	The following table presents additional information related to our operating leases in accordance ASC 842: Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2021 2020 2021 2020 Lease Cost (1) Operating lease cost $ 3,659 $ 2,587 $ 9,768 $ 5,113 Short-term lease cost 484 382 1,262 1,459 Variable lease costs 276 829 235 1,101 Total lease cost $ 4,419 $ 3,798 $ 11,265 $ 7,673 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (3,659) $ (2,587) $ (9,768) $ (5,113) Leased assets obtained in exchange for new operating lease liabilities $ 318 $ 865 $ 5,679 $ 16,644 Lease assets obtained in exchange for new financing liabilities $ 2,858 $ — $ 3,071 $ — September 30, 2021 September 30, 2020 Weighted-average remaining lease term (years) for operating leases 4.8 3.7 Weighted-average discount rate (2) operating leases 6.4 % 5.7 % Weighted-average remaining lease term (years) for financing lease 6.7 0.0 Weighted-average discount rate (2) financing lease 3.2 % — % (1) Includes an immaterial amount of financing lease. (2) Our discount rate is primarily based on our incremental borrowing rate in accordance with ASC 842

Organization and Basis of Pre_3

Organization and Basis of Presentation Organization and Basis of Presentation (Details)	Aug. 13, 2020
Delek Logistics GP
Distribution Made to Limited Partner [Line Items]
General Partner Economic Interest, Pecent	2.00%

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions	May 01, 2020USD ($)Truck_Trailer	Mar. 31, 2020USD ($)mistorage_tankbbl$ / sharesshares
Delek Trucking [Member]
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Consideration transferred	$ 48
Number Of Trucks and Trailers | Truck_Trailer	150
Asset Acquisition, Carry Value Of Assets Acquired	$ 13.3
Asset Acquisition, Carry Value Of Assets Acquired, Owned Assets	0.5
Asset Acquisition, Carry Value Of Assets Acquired, Right-Of-Use Assets	12.8
Asset Acquisition, Transaction Cost	$ 0.3
Big Spring Gathering Asset
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Consideration transferred		$ 100
Asset Acquisition, Carry Value Of Assets Acquired		209.5
Asset Acquisition, Transaction Cost		$ 0.7
Asset Acquisition, Equity Interest Transfered As Consideration, Shares | shares		5
Number Of Miles Of Gathering Systems | mi		200
Number of storage tanks | storage_tank		65
Total Storage Of Terminals | bbl		650,000
Asset Acquisition, Equity Interest Transfered As Consideration, Market Price | $ / shares		$ 9.10
Asset Acquisition, Equity Interest Transfered As Consideration, Value		$ 109.5

Related Party Transactions - Co

Related Party Transactions - Commercial Agreements (Details) - Delek US and affiliates	9 Months Ended
	Sep. 30, 2021
Minimum
Related Party Transaction [Line Items]
Commercial Agreements, Initial Term	5 years
Maximum
Related Party Transaction [Line Items]
Commercial Agreements, Initial Term	10 years

Related Party Transactions - Om

Related Party Transactions - Omnibus Agreement (Details) - Omnibus Agreement - Delek US and affiliates - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Related Party Transaction [Line Items]
Related Party Annual Service Fee		$ 4.7
Delek US | Other long term liabilities
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Delek Holdings	$ 0	$ 0	$ 0.6

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions	Aug. 13, 2020	Mar. 31, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 01, 2020	Feb. 29, 2020
Related Party Transaction [Line Items]
Stock Repurchased During Period, Value			$ 5
Revolving Credit Facility | DKL Revolver | Fifth Third Bank | Line of Credit
Related Party Transaction [Line Items]
Cash Consideration Received	$ 45
Delek US Holdings, Inc.
Related Party Transaction [Line Items]
Delek's limited partner ownership interest (as percent)						80.00%
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest, Shares						34,700,000
Delek Logistics GP
Related Party Transaction [Line Items]
General Partner Economic Interest, Pecent	2.00%
Common unitholders - Delek | Limited Partner
Related Party Transaction [Line Items]
Common Limited Partner Units Issued In Restructuring Transaction			451,822
Delek US Holdings, Inc. | Delek Logistics
Related Party Transaction [Line Items]
Business Combination, Consideration Transferred Equity Interests Issued And Issuable, Shares	14,000,000
Delek US Holdings, Inc. | General Partnership
Related Party Transaction [Line Items]
Ownership Interest in General Partner (as percent)				100.00%		100.00%
Delek US Holdings, Inc. | General Partnership | Delek Logistics GP
Related Party Transaction [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	5.20%
Delek US and affiliates
Related Party Transaction [Line Items]
Related Party. Ownership Percentage In Company		70.50%	70.50%					62.60%	64.50%
Delek US and affiliates | DPG Management Agreement, Operating Service And Construction Fee Paid To Partnership
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party				$ 0.4	$ 0.4	$ 1.2	$ 1.6
Big Spring Gathering Asset
Related Party Transaction [Line Items]
Asset Acquisition, Equity Interest Transfered As Consideration, Shares		5,000,000

Related Party Transactions - Su

Related Party Transactions - Summary of Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Related Party Transaction [Line Items]
Revenues	[1]	$ 123,519	$ 95,410	$ 308,435	$ 289,739
Delek US and affiliates
Related Party Transaction [Line Items]
Revenues		123,519	95,410	308,435	289,739
General and administrative expenses		2,681	3,250	6,794	9,322
Purchases from Affiliates | Delek US and affiliates
Related Party Transaction [Line Items]
Purchases from Affiliates		89,852	45,186	229,810	155,679
Operating and maintenance expense | Delek US and affiliates
Related Party Transaction [Line Items]
Operating and maintenance expenses		$ 10,656	$ 10,330	$ 30,217	$ 33,397
[1]	See Note 3 for a description of our material affiliate revenue transactions.

Related Party Transactions - Qu

Related Party Transactions - Quarterly Cash Distributions (Details) - USD ($) $ in Thousands	Nov. 10, 2021	Aug. 11, 2021	May 14, 2021	Feb. 09, 2021	Nov. 12, 2020	Aug. 12, 2020	May 12, 2020	Feb. 12, 2020
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 40,846	$ 39,968	$ 39,533	$ 39,308	$ 36,000	$ 30,900	$ 30,600
Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 41,286
Delek US and affiliates
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 32,700	$ 32,000	$ 31,600		$ 28,100	$ 23,200	$ 22,600
Delek US and affiliates | Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 33,000

Revenues (Details)

Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 448,209		$ 448,209		$ 464,812
Total revenue	189,627	$ 142,268	511,018	$ 423,306
Amortization of customer contract intangible assets	1,800	1,800	5,408	5,408
Revenue, remaining performance obligation	1,530,084		1,530,084
Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	5,462	3,198	12,379	15,089
Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	13,725	14,341	35,382	38,348
Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	60,645	43,660	190,204	118,478
Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	34,325	5,844	54,453	64,067
Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	75,470	75,225	218,600	187,324
Pipelines and transportation
Disaggregation of Revenue [Line Items]
Property, plant and equipment	389,862		389,862
Total revenue	76,202	71,479	211,612	182,872
Pipelines and transportation | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	5,323	3,035	12,021	14,587
Pipelines and transportation | Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	4,484	5,633	9,505	13,848
Pipelines and transportation | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Pipelines and transportation | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Pipelines and transportation | Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	66,395	62,811	190,086	154,437
Wholesale marketing and terminalling
Disaggregation of Revenue [Line Items]
Property, plant and equipment	58,347		58,347
Total revenue	113,425	70,789	299,406	240,434
Wholesale marketing and terminalling | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	139	163	358	502
Wholesale marketing and terminalling | Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	9,241	8,708	25,877	24,500
Wholesale marketing and terminalling | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	60,645	43,660	190,204	118,478
Wholesale marketing and terminalling | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	34,325	5,844	54,453	64,067
Wholesale marketing and terminalling | Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	9,075	$ 12,414	28,514	$ 32,887
Assets Leased to Others
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 428,000		$ 428,000
Maximum | Delek US and affiliates
Disaggregation of Revenue [Line Items]
Term Of Agreement			10 years
Minimum | Delek US and affiliates
Disaggregation of Revenue [Line Items]
Term Of Agreement			5 years

Revenues - Remaining Performanc

Revenues - Remaining Performance Obligation Expected Timing of Satisfaction - Period (Details) $ in Thousands	Sep. 30, 2021USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 1,530,084
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	6 months
Revenue, remaining performance obligation	$ 68,285
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, remaining performance obligation	$ 272,345
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, remaining performance obligation	$ 266,395
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, remaining performance obligation	$ 190,134
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction
Revenue, remaining performance obligation	$ 732,925

Net Income Per Unit - Narrative

Net Income Per Unit - Narrative (Details) - shares shares in Millions	Aug. 12, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
General Partnership
General partner's ownership interest (as percent)	2.00%		0.00%	0.00%	0.00%	2.00%
Big Spring Gathering Asset
Asset Acquisition, Equity Interest Transfered As Consideration, Shares		5

Net Income Per Unit (Details)

Net Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 12, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Income Per Unit [Line Items]
Net income attributable to partners		$ 43,624	$ 46,328	$ 123,137	$ 118,539
Less: Partners' distribution		41,286	39,307	122,100	87,536
Allocation of earnings in excess (deficit) of distributions		$ 2,338	$ 7,021	$ 1,037	$ 12,385
Footnote [Abstract]
Common Units Excluded From Computation Of Earnings Per Unit, Units				0
Common Units
Net Income Per Unit [Line Items]
Common units - (basic) (in shares)		43,454,535	36,889,761	43,447,739	30,290,051
Common units - (diluted) (in shares)		43,468,289	36,894,043	43,457,857	30,292,261
Common units - (basic) (in dollars per share)		$ 1	$ 1.26	$ 2.83	$ 3.30
Common units - (diluted) (in dollars per share)		$ 1	$ 1.26	$ 2.83	$ 3.30
General Partner
Net Income Per Unit [Line Items]
Net income attributable to partners			$ 0		$ 18,725
Less: General partner's distribution (including IDRs)		$ 0	0	$ 0	18,618
Allocation of earnings in excess (deficit) of distributions		0	0	0	106
Total partner's earnings		0	0	0	18,724
Common unitholders
Net Income Per Unit [Line Items]
Less: Partners' distribution		41,286	39,307	122,100	87,536
Allocation of earnings in excess (deficit) of distributions		2,338	7,021	1,037	12,279
Common unitholders | Common Units
Net Income Per Unit [Line Items]
Total partner's earnings		$ 43,624	$ 46,328	$ 123,137	$ 99,815
Common units - (basic) (in shares)		43,454,535	36,889,761	43,447,739	30,290,051
Common units - (diluted) (in shares)		43,468,289	36,894,043	43,457,857	30,292,261
Common units - (basic) (in dollars per share)		$ 1	$ 1.26	$ 2.83	$ 3.30
Common units - (diluted) (in dollars per share)		$ 1	$ 1.26	2.83	$ 3.30
Maximum
Footnote [Abstract]
Distribution Payment Targets				$ 0.43125
General Partnership
Footnote [Abstract]
General partner's ownership interest (as percent)	2.00%	0.00%	0.00%	0.00%	2.00%

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventories	$ 2,222	$ 3,127

Long-Term Obligations - 7.125%

Long-Term Obligations - 7.125% Senior Notes Due 2028 (Details) - 2028 Notes - Senior Notes - USD ($)	May 24, 2021	Sep. 30, 2021
Debt Instrument [Line Items]
Face amount of debt	$ 400,000,000
Interest rate (as percent)	7.125%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	35.00%
Long-term Line of Credit		$ 400,000,000
Deferred financing costs		$ 5,900,000
Period prior to June 1, 2024
Debt Instrument [Line Items]
Redemption price (as percent)	107.125%
Twelve-month period beginning on June1, 2024
Debt Instrument [Line Items]
Redemption price (as percent)	103.563%
Twelve-month period beginning on June 1, 2025
Debt Instrument [Line Items]
Redemption price (as percent)	101.781%
Twelve-month period beginning on June 1, 2026
Debt Instrument [Line Items]
Redemption price (as percent)	100.00%

Long-Term Obligations - DKL Cre

Long-Term Obligations - DKL Credit Facility (Details) - USD ($)	Aug. 13, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 28, 2018
Line of Credit Facility [Line Items]
Net increase (decrease) in cash and cash equivalents		$ 621,000	$ 479,000
Line of Credit | Revolving Credit Facility | Fifth Third Bank
Line of Credit Facility [Line Items]
Weighted average interest rate (as percent)		2.62%
Line of Credit | Revolving Credit Facility | Fifth Third Bank | Prime Rate | United States of America, Dollars
Line of Credit Facility [Line Items]
Variable rate description		U.S. dollar prime rate
Line of Credit | Revolving Credit Facility | Fifth Third Bank | London Interbank Offered Rate (LIBOR) | United States of America, Dollars
Line of Credit Facility [Line Items]
Variable rate description		LIBOR
Line of Credit | Revolving Credit Facility | Fifth Third Bank | Canadian prime rate | Canada, Dollars
Line of Credit Facility [Line Items]
Variable rate description		Canadian dollar prime rate
Line of Credit | Revolving Credit Facility | Fifth Third Bank | Canadian Dealer Offered Rate (CDOR) | Canada, Dollars
Line of Credit Facility [Line Items]
Variable rate description		Canadian Dealer Offered Rate
DKL Revolver | Line of Credit | Revolving Credit Facility | Fifth Third Bank
Line of Credit Facility [Line Items]
Maximum lender commitment				$ 850,000,000
Maximum amount under accordion feature				$ 1,000,000,000
Cash Consideration Received	$ 45,000,000
Net increase (decrease) in cash and cash equivalents	$ 20,000,000
Second Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Fifth Third Bank
Line of Credit Facility [Line Items]
Commitment fee (as percent)		0.35%
Outstanding borrowings		$ 260,900,000
Letters of credit outstanding		0
Unused credit commitment		$ 589,100,000

Long-Term Obligations - 6.75% S

Long-Term Obligations - 6.75% Senior Notes Due 2025 (Details) - Senior Notes - Senior 2025 Notes - USD ($)	May 23, 2017	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Face amount of debt	$ 250,000,000
Interest rate (as percent)	6.75%
Purchase price (as percent)		101.00%
Long-term Line of Credit		$ 250,000,000
Debt Instrument, Interest Rate, Effective Percentage		7.21%
Deferred financing costs		$ 2,700,000	$ 3,300,000
Debt discount		$ 900,000	$ 1,000,000
Twelve-month period beginning on May 15, 2021
Debt Instrument [Line Items]
Redemption price (as percent)	103.375%
Twelve-month period beginning on May 15, 2022
Debt Instrument [Line Items]
Redemption price (as percent)	101.688%
Beginning on May 15, 2023 and thereafter
Debt Instrument [Line Items]
Redemption price (as percent)	100.00%

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ in Millions	Aug. 13, 2020	Sep. 30, 2021	Dec. 31, 2020	Aug. 31, 2020
Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)		8,713,195	8,697,468
Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)		34,745,868	34,745,868
Limited Partner | Delek US
Class of Stock [Line Items]
Limited Partners Interest In Partnership, Shares				14,000,000
Limited Partner | Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)		8,713,195
Limited Partner | Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)		34,745,868
Delek US Holdings, Inc.
Class of Stock [Line Items]
Delek's limited partner ownership interest (as percent)		80.00%
Delek US Holdings, Inc. | General Partnership
Class of Stock [Line Items]
Business Combination, Acquisition Related Costs	$ 1.1

Equity - Equity Activity (Detai

Equity - Equity Activity (Details)	9 Months Ended
	Sep. 30, 2021shares
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	43,443,336
Unit-based compensation awards	15,727
Ending Balance	43,459,063
Units withheld for taxes	3,237
Limited Partner | Common unitholders - public
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	8,697,468
Unit-based compensation awards	15,727
Ending Balance	8,713,195
Limited Partner | Common unitholders - Delek
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	34,745,868
Unit-based compensation awards	0
Ending Balance	34,745,868

Equity - Allocations of Net Inc

Equity - Allocations of Net Income (Details) - USD ($) $ in Thousands		Aug. 12, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income attributable to partners			$ 43,624	$ 46,328	$ 123,137	$ 118,539
Less: General partner's IDRs			0	0	0	(17,632)
Net income available to partners			43,624	46,328	123,137	100,907
General partner's allocated interest in net income			0	0	0	1,092
General partner's IDRs			0	0	0	17,632
Total general partner's interest in net income	[1]		$ 0	$ 0	$ 0	$ 18,724
General Partnership
General partner's ownership interest (as percent)		2.00%	0.00%	0.00%	0.00%	2.00%
[1]	See Note 3 for a description of the IDR Restructuring Transaction.

Equity - Incentive Distribution

Equity - Incentive Distribution Rights (Details) - $ / shares shares in Millions	Aug. 12, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest, Increasing Percentage, Maximum					48.00%
Maximum
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Payment Targets					$ 0.43125
General Partnership
Incentive Distribution Made to Managing Member or General Partner [Line Items]
General partner's ownership interest (as percent)	2.00%		0.00%	0.00%	0.00%	2.00%
Big Spring Gathering Asset
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Asset Acquisition, Equity Interest Transfered As Consideration, Shares		5

Equity - Cash Distributions (De

Equity - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 10, 2021	Aug. 11, 2021	May 14, 2021	Feb. 09, 2021	Nov. 12, 2020	Aug. 12, 2020	May 12, 2020	Feb. 12, 2020
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Paid (in dollars per share)		$ 0.940	$ 0.920	$ 0.910	$ 0.905
Total Cash Distribution, including general partner interest and IDRs		$ 40,846	$ 39,968	$ 39,533	$ 39,308	$ 36,000	$ 30,900	$ 30,600
Subsequent Event
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Paid (in dollars per share)	$ 0.950
Total Cash Distribution, including general partner interest and IDRs	$ 41,286

Equity - Distributions Earned (

Equity - Distributions Earned (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity [Abstract]
General partner's distributions	$ 0	$ 0	$ 0	$ 986
General partner's IDRs	0	0	0	17,632
Total general partner's distributions	0	0	0	18,618
Common limited partners' distributions	41,286	39,307	122,100	87,536
Total cash distributions	$ 41,286	$ 39,307	$ 122,100	$ 106,154
Cash distributions per limited partner unit (in dollars per share)	$ 0.950	$ 0.905	$ 3.800	$ 2.695

Equity Based Compensation (Deta

Equity Based Compensation (Details) - Delek Logistics GP 2012 Long-Term Incentive Plan - Common Stock	Jun. 09, 2021shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	300,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	912,207

Equity Method Investments (Deta

Equity Method Investments (Details) $ in Thousands	1 Months Ended	9 Months Ended		12 Months Ended
	May 31, 2019USD ($)	Sep. 30, 2021USD ($)joint_venture	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)
Schedule of Equity Method Investments [Line Items]
Investment in joint ventures		$ 251,919		$ 253,675
Payments to Acquire Equity Method Investments		$ 1,393	$ 11,804
Equity method investments, number of joint ventures | joint_venture		3
Red River
Schedule of Equity Method Investments [Line Items]
Investment in joint ventures	$ 124,700
Ownership interest (as percent)	33.00%
CP LLC And Rangeland Energy
Schedule of Equity Method Investments [Line Items]
Equity method investments, number of joint ventures | joint_venture		2
CP LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest (as percent)		50.00%
Rangeland Rio
Schedule of Equity Method Investments [Line Items]
Ownership interest (as percent)		33.00%
Red River Start Up Capital
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments	$ 400
Red River Expansion
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments	$ 3,500	$ 1,400		$ 12,200

Equity Method Investments - Sum

Equity Method Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Current Assets	$ 26,588		$ 26,588		$ 29,309
Current liabilities	88,044		88,044		28,300
Revenues	189,627	$ 142,268	511,018	$ 423,306
Operating income	50,583	51,765	141,147	134,688
Net Income	43,624	46,328	123,137	118,539
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Red River
Schedule of Equity Method Investments [Line Items]
Current Assets	25,444		25,444		13,488
Non-current Assets	406,051		406,051		413,259
Current liabilities	11,786		11,786		7,789
Revenues	19,349	13,919	46,136	35,888
Gross Profit	12,027	8,189	26,367	21,251
Operating income	11,871	8,020	25,866	20,717
Net Income	11,853	8,022	25,843	20,768
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Current Assets	20,790		20,790		20,763
Non-current Assets	245,560		245,560		253,862
Current liabilities	3,731		3,731		$ 1,496
Revenues	12,090	14,227	35,316	42,412
Gross Profit	6,757	9,634	20,462	28,468
Operating income	6,300	9,135	19,022	26,999
Net Income	$ 6,300	$ 9,136	$ 19,023	$ 27,023

Segment Data - Narrative (Detai

Segment Data - Narrative (Details)	9 Months Ended
	Sep. 30, 2021segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segment Data (Details)

Segment Data (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Affiliates (1)	[1]	$ 123,519	$ 95,410	$ 308,435	$ 289,739
Third party		66,108	46,858	202,583	133,567
Net revenues		189,627	142,268	511,018	423,306
Cost of materials and other		105,129	60,692	274,995	205,877
Operating expenses (excluding depreciation and amortization presented below)		17,345	14,230	46,942	41,423
Segment contribution margin		67,153	67,346	189,081	176,006
General and administrative expenses		6,141	6,122	17,018	16,973
Depreciation and amortization		10,156	9,459	30,862	24,452
Other operating expense (income), net		273	0	54	(107)
Operating income		50,583	51,765	141,147	134,688
Capital spending		4,136	3,228	14,526	6,918
Total assets		930,543		930,543		$ 956,417
Pipelines and transportation
Segment Reporting Information [Line Items]
Affiliates (1)		70,879	68,444	199,591	168,285
Third party		5,323	3,035	12,021	14,587
Net revenues		76,202	71,479	211,612	182,872
Operating expenses (excluding depreciation and amortization presented below)		13,680	10,749	34,710	31,936
Segment contribution margin		47,352	46,388	134,307	119,314
Capital spending		2,570	2,552	9,946	3,424
Total assets		692,901		692,901		723,317
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Affiliates (1)		52,640	26,966	108,844	121,454
Third party		60,785	43,823	190,562	118,980
Net revenues		113,425	70,789	299,406	240,434
Operating expenses (excluding depreciation and amortization presented below)		3,665	3,481	12,232	9,487
Segment contribution margin		19,801	20,958	54,774	56,692
Capital spending		1,566	676	4,580	3,494
Total assets		213,277		213,277		206,918
Other Segments
Segment Reporting Information [Line Items]
Total assets		24,365		24,365		$ 26,182
Service
Segment Reporting Information [Line Items]
Cost of materials and other		105,129	60,692	274,995	205,877
Service | Pipelines and transportation
Segment Reporting Information [Line Items]
Cost of materials and other		15,170	14,342	42,595	31,622
Service | Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Cost of materials and other		$ 89,959	$ 46,350	$ 232,400	$ 174,255
[1]	See Note 3 for a description of our material affiliate revenue transactions.

Segment Data - PP&E (Details)

Segment Data - PP&E (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 704,905	$ 704,905	$ 692,282
Less: accumulated depreciation	(256,696)	(256,696)	(227,470)
Property, plant and equipment, net	448,209	448,209	$ 464,812
Depreciation expense	10,156	30,862
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	589,729	589,729
Less: accumulated depreciation	(199,867)	(199,867)
Property, plant and equipment, net	389,862	389,862
Depreciation expense	8,056	24,918
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	115,176	115,176
Less: accumulated depreciation	(56,829)	(56,829)
Property, plant and equipment, net	58,347	58,347
Depreciation expense	$ 2,100	$ 5,944

Commitments and Contingencies -

Commitments and Contingencies - Crude Oil Releases (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021USD ($)crudeOilRelease	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Loss Contingencies [Line Items]
Number Of Crude Oil Releases | crudeOilRelease	1
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses		$ 0.5	$ 7.1
Greenville Dixon Release
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses	$ 0.3
Accrual for environmental loss contingencies	2.4
Operating Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 0.3

Leases - Lease Cost and Other I

Leases - Lease Cost and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease cost	$ 3,659	$ 2,587	$ 9,768	$ 5,113
Short-term lease cost	484	382	1,262	1,459
Variable lease costs	276	829	235	1,101
Total lease cost	4,419	3,798	11,265	7,673
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	(3,659)	(2,587)	(9,768)	(5,113)
Lease assets obtained in exchange for new operating lease liabilities	318	$ 865	5,679	$ 16,644
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 2,858		$ 3,071
Weighted-average remaining lease term (years) for operating leases	4 years 9 months 18 days	3 years 8 months 12 days	4 years 9 months 18 days	3 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	6.40%	5.70%	6.40%	5.70%
Weighted-average remaining lease term (years) for financing lease	6 years 8 months 12 days	0 years	6 years 8 months 12 days	0 years
Weighted-average discount rate financing lease	3.20%	0.00%	3.20%	0.00%

Subsequent Events - Distributio

Subsequent Events - Distribution Declaration (Details) - $ / shares	Nov. 10, 2021	Aug. 11, 2021	May 14, 2021	Feb. 09, 2021	Nov. 12, 2020
Subsequent Event [Line Items]
Distribution Made to Limited Partner, Distributions Paid, Per Unit		$ 0.940	$ 0.920	$ 0.910	$ 0.905
Subsequent Event
Subsequent Event [Line Items]
Distribution Made to Limited Partner, Distributions Paid, Per Unit	$ 0.950