Delek Logistics Partners (DKL) 10-Q 8 May 20 2020 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2020	May 01, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
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 Central Index Key	0001552797
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common unitholders
Entity Information [Line Items]
Entity Partnership Units Outstanding		29,425,625
General Partner
Entity Information [Line Items]
Entity Partnership Units Outstanding		600,523

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 4,176	$ 5,545
Accounts receivable	12,392	13,204
Inventory	5,133	12,617
Other current assets	926	2,204
Total current assets	22,627	33,570
Property, plant and equipment:
Property, plant and equipment	665,718	461,325
Less: accumulated depreciation	(186,249)	(166,281)
Property, plant and equipment, net	479,469	295,044
Equity method investments	255,743	246,984
Operating lease right-of-use assets	3,471	3,745
Goodwill	12,203	12,203
Marketing Contract Intangible, net	129,196	130,999
Right-of-way	37,329	15,597
Other non-current assets	6,198	6,305
Total assets	946,236	744,447
Current liabilities:
Accounts payable	4,385	12,471
Accounts payable to related parties	2,075	8,898
Interest Payable	6,919	2,572
Excise and other taxes payable	4,088	3,941
Current portion of operating lease liabilities	1,456	1,435
Accrued expenses and other current liabilities	3,719	5,765
Total current liabilities	22,642	35,082
Non-current liabilities:
Long-term debt	939,955	833,110
Asset retirement obligations	5,695	5,588
Deferred tax liabilities	1,027	215
Operating lease liabilities, net of current portion	2,015	2,310
Other non-current liabilities	19,298	19,261
Total non-current liabilities	967,990	860,484
Equity (Deficit):
Total equity (deficit)	(44,396)	(151,119)
Total liabilities and deficit	946,236	744,447
Common unitholders | Common unitholders - public; 8,679,757 units issued and outstanding at March 31, 2020 (9,131,579 at December 31, 2019)
Equity (Deficit):
Total equity (deficit)	158,332	164,436
Common unitholders | Common unitholders - Delek Holdings; 20,745,868 units issued and outstanding at March 31, 2020 (15,294,046 at December 31, 2019)
Equity (Deficit):
Total equity (deficit)	(199,943)	(310,513)
General partner - 600,523 units issued and outstanding at March 31, 2020 (498,482 at December 31, 2019)
Equity (Deficit):
Total equity (deficit)	$ (2,785)	$ (5,042)

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - shares	Mar. 31, 2020	Dec. 31, 2019
General partner - Delek, units issued	600,523	498,482
Common unitholders - public
Common unitholders, units issued	8,679,757	9,131,579
Common unitholders - Delek
Common unitholders, units issued	20,745,868	15,294,046

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net revenues:
Affiliates (1)	[1]	$ 106,699	$ 62,965
Third party		56,702	89,518
Net revenues		163,401	152,483
Cost of sales:
Cost of materials and other		101,293	96,265
Operating expenses (excluding depreciation and amortization presented below)		13,954	15,307
Depreciation and amortization		5,803	6,124
Total cost of sales		121,050	117,696
Operating expenses (excluding depreciation and amortization presented below)		790	751
General and administrative expenses		6,130	4,473
Depreciation and amortization		496	450
Other operating expense (income), net		(107)	2
Total operating costs and expenses		128,359	123,372
Operating income		35,042	29,111
Interest expense, net		11,824	11,301
Income from equity method investments		(5,553)	(1,951)
Total non-operating expenses, net		6,271	9,350
Income before income tax expense		28,771	19,761
Income tax expense		975	65
Net income attributable to partners		27,796	19,696
Comprehensive income attributable to partners		27,796	19,696
Less: General partner's interest in net income, including incentive distribution rights		9,077	7,270
Limited partners' interest in net income		$ 18,719	$ 12,426
Net income per limited partner unit:
Common units - (basic) (in dollars per share)		$ 0.76	$ 0.51
Common units - (diluted) (in dollars per share)		$ 0.76	$ 0.51
Weighted average limited partner units outstanding:
Common units - (basic) (in shares)		24,480,570	24,407,168
Common units - (diluted) (in shares)		24,485,336	24,416,058
Cash distributions per limited partner unit (in dollars per share)		$ 0.890	$ 0.820
[1]	See Note 3 for a description of our material affiliate revenue transactions.

Consolidated Statement of Partn

Consolidated Statement of Partners Equity (Deficit) Statement - USD ($) $ in Thousands		Total	General Partner	Common unitholders - publicLimited Partner	Common unitholders - DelekLimited Partner	General Partnership [Member]
General partner's ownership interest (as percent)						2.00%
Beginning balance at Dec. 31, 2018		$ (134,823)	$ (6,486)	$ 171,023	$ (299,360)
Cash distributions	[1]	(26,919)	(7,179)	(7,352)	(12,388)
General partner units issued to maintain 2% interest		2	2
Net income attributable to partners		19,696	7,270	4,664	7,762
Other		139	1	54	84
Ending balance at Mar. 31, 2019		(141,905)	(6,392)	168,389	(303,902)
General partner's ownership interest (as percent)						2.00%
Beginning balance at Dec. 31, 2019		(151,119)	(5,042)	164,436	(310,513)
Cash distributions		(30,633)	(9,017)	(8,081)	(13,535)
General partner units issued to maintain 2% interest		6	6
Net income attributable to partners		27,796	9,077	6,652	12,067
Delek Holdings Unit purchases				(4,979)	4,979
Distributions to Delek Holdings for Big Spring Asset Acquisition		109,513	2,190		107,323
Other		41	1	304	(264)
Ending balance at Mar. 31, 2020		$ (44,396)	$ (2,785)	$ 158,332	$ (199,943)
[1]	Cash distributions include a nominal amount related to distribution equivalents on vested phantom units.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows ( Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 27,796	$ 19,696
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,299	6,574
Non-cash lease expense	274	1,016
Amortization of customer contract intangible assets	1,803	1,803
Amortization of deferred revenue	(473)	(402)
Amortization of deferred financing costs and debt discount	574	905
Accretion of asset retirement obligations	107	99
Income from equity method investments	(5,553)	(1,951)
Dividends from equity method investments	4,913	1,488
(Gain) loss on asset disposals	(107)	2
Other non-cash adjustments	855	956
Changes in assets and liabilities:
Accounts receivable	812	48
Inventories and other current assets	8,762	(838)
Accounts payable and other current liabilities	(4,692)	(5,177)
Accounts receivable/payable to related parties	(6,823)	2,689
Non-current assets and liabilities, net	287	109
Net cash provided by operating activities	34,834	27,017
Cash flows from investing activities:
Payments to Acquire Assets From Asset Acquisition	100,000	0
Purchases of property, plant and equipment	(4,164)	(1,181)
Proceeds from sales of property, plant and equipment	107	12
Distributions from equity method investments	110	804
Equity method investment contributions	(8,229)	(3,401)
Net cash used in investing activities	(112,176)	(3,766)
Cash flows from financing activities:
Proceeds from issuance of additional units to maintain 2% General Partner interest	6	2
Distributions to general partner	(9,017)	(7,179)
Distributions to common unitholders - public	(8,081)	(7,352)
Distributions to common unitholders - Delek Holdings	(13,535)	(12,388)
Proceeds from revolving credit facility	261,400	119,000
Payments on revolving credit facility	(154,800)	(114,500)
Net cash provided by (used in) financing activities	75,973	(22,417)
Net increase (decrease) in cash and cash equivalents	(1,369)	834
Cash and cash equivalents at the beginning of the period	5,545	4,522
Cash and cash equivalents at the end of the period	4,176	5,356
Cash paid during the period for:
Interest	6,903	5,997
Income taxes	3	58
Non-cash investing activities:
Decrease in accrued capital expenditures	(1,220)	(276)
Equity issuance to Delek Holdings unitholders in connection with Big Spring Gathering Assets Acquisition	109,513
Non-cash financing activities:
Non-cash lease liability arising from recognition of right of use assets upon adoption of ASU 2016-02	$ 0	$ 2,645

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
General Partnership [Member]
General partner's ownership interest (as percent)	2.00%	2.00%

Organization and Basis of Prese

Organization and Basis of Presentation	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020, the Partnership, through its wholly-owned subsidiary DKL Permian Gathering, LLC, acquired from Delek Holdings a crude oil gathering system located in Howard, Borden and Martin Counties, Texas (the "Big Spring Gathering System"), and certain related assets, such transaction the "Big Spring Gathering Assets Acquisition." See Note 2 for further information. 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, 2019 (our "Annual Report on Form 10-K"), filed with the Securities and Exchange Commission (the "SEC") on February 27, 2020 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, 2019 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 and the OPEC Production Disputes The recent outbreak of COVID-19 and its development into a Pandemic in March 2020 (the "COVID-19 Pandemic") has resulted in significant economic disruption globally, including in the U.S. and specific geographic areas where we operate. Actions taken by various governmental authorities, individuals and companies around the world to prevent the spread of COVID-19 through social distancing have restricted travel, many business operations, public gatherings and the overall level of individual movement and in-person interaction across the globe. This has in turn significantly reduced global economic activity and resulted in airlines dramatically cutting back on flights and a decrease in motor vehicle use at a time when seasonal driving patterns typically result in an increase of consumer demand for gasoline. As a result, there has also been a decline in the demand for, and thus also the market prices of, crude oil and certain products, particularly refined petroleum products that we receive revenue for the transportation and storage services we provide. In addition, recent events concerning the dispute over production levels between Russia and the members of the Organization of Petroleum Exporting Countries ("OPEC"), particularly Saudi Arabia, and the subsequent actions taken by such countries as a result thereof, including Saudi Arabia discounting the price of its crude oil exports (the "OPEC Production Disputes"), have exacerbated the decline in crude oil prices and have contributed to an increase in crude oil price volatility. Uncertainties related to the impact of the COVID-19 Pandemic and the OPEC Production Disputes 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 unaudited financial statements as of and for the three months ended March 31, 2020 . The application of accounting policies impacted by such considerations include (but are not necessarily limited to) the following: • The interim evaluation of indefinite-lived intangibles and goodwill for potential impairment, where indicators exist, as defined by GAAP; • The interim evaluation of long-lived assets for potential impairment, where indicators exist, as defined by GAAP; • The interim evaluation of joint ventures for potential impairment, where indicators exist, as defined by GAAP; • The evaluation of inventory valuation allowances that may be warranted under the lower of cost or net realizable value analysis, pursuant to GAAP; • The consideration of debt modifications and or covenant requirements, as applicable; • The evaluation of commitments and contingencies, including changes in concentrations, as applicable; • The interim evaluation of the risk of credit losses and the determination of our allowance for credit losses, pursuant to GAAP; and • The interim evaluation of our ability to continue as a going concern. New Accounting Pronouncements Adopted During 2020 ASU 2018-13, Fair Value Measurement - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the Financial Accounting Standards Board (the "FASB") issued guidance related to disclosure requirements for fair value measurements. The pronouncement eliminates, modifies and adds disclosure requirements for fair value measurements. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2019. We adopted this guidance on January 1, 2020 and the adoption did not have a material impact on our business, financial condition or results of operations. ASU 2016-13, Financial Instruments - Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued guidance requiring the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Organizations will now use forward-looking information to better inform their credit loss estimates. This guidance is effective for interim and annual periods beginning after December 15, 2019. We adopted this guidance on January 1, 2020 using the modified retrospective approach as of the adoption date. The adoption did not have a material impact on the Partnership’s operating results, financial position or disclosures. ASU 2018-15, Intangible - Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract In August 2018, the FASB issued guidance related to customers' accounting for implementation costs incurred in a cloud computing arrangement that is considered a service contract. This pronouncement aligns the requirements for capitalizing implementation costs in such arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This pronouncement is effective for fiscal year, and for interim periods within those fiscal years, beginning after December 15, 2019. Entities can choose to adopt the new guidance prospectively or retrospectively. We adopted this guidance on January 1, 2020 and elected the prospective method. The adoption did not have a material impact on our business, financial condition or results of operations. Accounting Pronouncements Not Yet Adopted ASU 2019-12, Simplifying the Accounting for Income Taxes In December 2019, the FASB issued guidance intended to simplify various aspects related to accounting for income taxes, eliminate certain exceptions within ASC 740 and clarify certain aspects of the current guidance to promote consistency among reporting entities. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 2020, with early adoption permitted. We expect to adopt this guidance on the effective date and are currently evaluating the impact that adopting this new guidance will have on our business, financial condition and results of operations. 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 FASB issued 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 do not expect the adoption of this ASU on its effective date will have a material impact on our business, financial condition or results of operations. 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 currently evaluating the impact this guidance may have on its consolidated financial statements and related disclosures.

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2020
Acquisitions [Abstract]
Acquisitions	Acquisitions 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. The total consideration is subject to certain post-closing adjustments and was comprised of $100.0 million in cash and 5.0 million common units representing limited partnership interest in us. We financed the cash component of this acquisition with borrowings from the DKL Credit Facility. The Big Spring Gathering Assets are recorded in our pipelines and transportation segment and include: • Crude oil pipelines; • Approximately 200 miles of gathering systems (Bayswater Battery, Guidon, Tiger Battery, SM Energy Vizzini); • 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 “T&D Agreement”). Under the 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 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 Accounting Standard Update 2017-01, " Clarifying the Definition of a Business

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2020
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 to ten years , which may be extended for various renewal terms at the option of Delek Holdings. In November 2017, Delek Holdings opted to renew certain of these agreements for subsequent five-year terms expiring in November 2022. In the case of our marketing agreement with Delek Holdings with respect to the Tyler Refinery, the initial term has been extended through 2026. The current term of certain of our agreements with Delek Holdings were required to be further extended pursuant to the amended and restated DKL Credit Facility (as defined in Note 7 ), which extensions were effective in the fourth quarter of 2018. The fees under each agreement are payable to us monthly by Delek Holdings or certain third parties to whom Delek Holdings has assigned certain of its rights and are generally subject to increase or decrease on July 1 of each year, by the amount of any change in various inflation-based indices, including the Federal Energy Regulatory Commission ("FERC") oil pipeline index or various iterations of the consumer price index ("CPI") and the producer price index ("PPI"); provided, however, that in no event will the fees be adjusted below the amount initially set forth in the applicable agreement. In most circumstances, if Delek Holdings or the applicable third party assignee fails to meet or exceed the minimum volume or throughput commitment during any calendar quarter, Delek Holdings, and not any third party assignee, will be required to make a quarterly shortfall payment to us equal to the volume of the shortfall multiplied by the applicable fee, subject to certain exceptions as specified in the applicable agreement. Carry-over of any volumes or revenue in excess of such commitment to any subsequent quarter is not permitted. 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 from throughputting or 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. Effective March 31, 2020 , we entered into a Throughput and Deficiency Agreement (the “T&D Agreement”) with Delek Holdings. Under the T&D Agreement, we 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 Delek Holdings' and certain other producers’ respective interests for delivery at the Big Spring Terminal. Pursuant to the T&D Agreement, Delek Holdings has committed to ship 120,000 bpd on the Big Spring Gathering Assets and 50,000 bpd to a redelivery point in Howard County, Texas (collectively, the “MVCs”). Pursuant to the T&D Agreement, we also agreed to spend up to $33.8 million over three years to connect additional receipt points and, in connection with such expenditures, the MVCs will increase to provide the Partnership a 12.5% return on the actual costs directly incurred and paid by the Partnership pursuant to the terms set forth in the T&D Agreement. The initial term of the T&D Agreement is 10 years, and thereafter Delek Holdings has the option to extend the T&D Agreement for two additional five-year terms. Following the initial term and any such extensions, the T&D Agreement will continue on a year-to-year basis unless terminated by either party upon 90 days’ written notice. 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, our general partner, Delek Logistics Operating, LLC, 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 $ 4.1 million to Delek Holdings for its provision of centralized corporate services to the Partnership. Pursuant to the terms of the Omnibus Agreement, we were reimbursed by Delek Holdings for certain capital expenditures in the amount of $0.6 million and $0.8 million during the three months ended March 31, 2020 and 2019 , 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. Ad ditionally, 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 March 31, 2020 , we have recorded a no minal receivable from related parties for these matters for which we expect to be reimbursed. These reimbursements are recorded as reductions to operating expense. We were reimbursed a no minal amount for these matters during the three months ended March 31, 2020 . Additionally, we were reimbursed $3.5 million for these matters during the three months ended March 31, 2019 . Other Transactions The Partnership manages a long-term capital project on behalf of Delek Holdings pursuant to a construction management and operating agreement (the "DPG Management Agreement") for the construction of a 250-mile gathering system in the Permian Basin. The majority of the gathering system has been constructed, however, additional costs pertaining to a pipeline connection that was not contributed to 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 for the three months ended March 31, 2020 and 2019 were $0.9 million and $1.9 million , respectively, and are recorded in affiliate revenue in our condensed consolidated statement 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 and registered Sale of Equity Securities In connection with the Partnership's issuance of the new units ("Additional Units") under the Big Spring Gathering Assets Acquisition and in accordance with 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 "Partnership Agreement"). The sale and issuance of the Additional Units 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") repurchased 451,822 units from an investor pursuant to a Common Unit Purchase Agreement ("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 Additional Units in connection with the Big Spring Gathering Assets Acquisition described above. 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 the general partner adopted Amendment No. 2 (“Amendment No. 2”) to the Partnership Agreement, effective upon adoption. Amendment No. 2 amends the Partnership Agreement to provide for a waiver of distributions in respect of the Incentive Distribution Rights ("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”). The IDR Waiver essentially reduces 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 Additional Units. The IDR Waiver will automatically and permanently expire if, following the payment of a distribution in respect of a quarter ending on or after March 31, 2022, Delek Logistics has generated distributable cash flow in the most recent four consecutive quarters that, in the aggregate, would have resulted in total distribution coverage (on a pro forma basis without giving effect to the IDR Waiver) of at least 110% or 1.1x over such period. The IDR Waiver remains effective if this condition is not met. Following the termination of the IDR Waiver, the holders of the IDRs will receive distributions on all units, including the Additional Units. In addition, in connection with any sale or exchange of the IDRs to or with the Partnership, the IDRs shall be treated as if such waiver had not and never will expire, regardless of whether such waiver has actually expired. An additional waiver letter has been signed that waives all of the distributions for the first quarter of 2020 on the Additional Units with respect to the base distribution and the IDRs. Pursuant to Amendment Number 2, the IDR majority unitholders have the right, subject to certain conditions following the termination of the IDR Waiver, to make an election (the “IDR Reset Election”) to cause the minimum quarterly distribution and the target distributions to be reset ("the IDR Reset"). In connection with the IDR Reset, the IDR Unitholders will become entitled to receive their respective proportionate share of Common Units (the “IDR Reset Common Units”) derived by dividing (i) the average amount of IDR cash distributions made by the Partnership by (ii) the average of the cash distributions made by the Partnership in respect of each Common Unit, and in each case for the two full Quarters immediately before the Reset Notice. 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 March 31, 2020 2019 Revenues $ 106,699 $ 62,965 Purchases from Affiliates $ 80,763 $ 79,434 Operating and maintenance expenses $ 12,757 $ 9,925 General and administrative expenses $ 3,369 $ 1,370 Quarterly Cash Distributions Our common and general partner unitholders and the holders of IDRs are entitled to receive quarterly distributions of available cash as it is determined by the board of directors of our general partner in accordance with the terms and provisions of our Partnership Agreement. In February 2020 , we paid quarterly cash distributions of $30.6 million , of which $22.6 million were paid to Delek Holdings and our general partner. In February 2019 , we paid quarterly cash distributions of $26.9 million , of which $19.6 million were paid to Delek Holdings and our general partner. On April 21, 2020 , our general partner's board of directors declared a quarterly cash distribution totaling $30.9 million , based on the available cash as of the date of determination for the end of the first quarter of 2020 , payable on May 12, 2020 , of which $23.2 million is expected to be paid to Delek Holdings and our general partner, including the distribution as holder of the IDRs described in Note 8 .

Revenues (Notes)

Revenues (Notes)	3 Months Ended
	Mar. 31, 2020
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 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 Accounting Standards Codification ("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 $479.5 million net property, plant, and equipment balance as of March 31, 2020 , $279.0 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 March 31, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 9,465 $ 191 $ 9,656 Product Revenue - Third Party — 47,046 47,046 Product Revenue - Affiliate — 51,503 51,503 Lease Revenue - Affiliate (1) 38,502 16,694 55,196 Total Revenue $ 47,967 $ 115,434 $ 163,401 (1) Net of $1.8 million of amortization expense for the three months ended March 31, 2020 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended March 31, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,974 $ 120 $ 4,094 Product Revenue - Third Party — 85,424 85,424 Product Revenue - Affiliate — 9,386 9,386 Lease Revenue - Affiliate (1) 36,659 16,920 53,579 Total Revenue $ 40,633 $ 111,850 $ 152,483 (1) Net of $1.8 million of amortization expense for the three months ended March 31, 2019 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. As of March 31, 2020 , we expect to recognize $1.3 billion in lease revenues 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 to ten years , which may be extended for various renewal terms. We disclose information about remaining performance obligations that have original expected durations of greater than one year . Our unfulfilled performance obligations as of March 31, 2020 were as follows (in thousands): Remainder of 2020 157,039 2021 209,150 2022 208,095 2023 202,287 2024 and thereafter $ 504,649 Total expected revenue on remaining performance obligations $ 1,281,220

Inventory

Inventory	3 Months Ended
	Mar. 31, 2020
Inventory Disclosure [Abstract]
Inventory	Inventory Inventories consisted of $5.1 million and $12.6 million of refined petroleum products as of March 31, 2020 and December 31, 2019 , respectively. 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, which amounted to $2.9 million and a nominal amount during the three months ended March 31, 2020 and 2019

Long-Term Obligations

Long-Term Obligations	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Long-Term Obligations	Long-Term Obligations DKL Credit Facility Prior to September 28, 2018, the Partnership had a $700.0 million senior secured revolving credit agreement with Fifth Third Bank ("Fifth Third"), as administrative agent, and a syndicate of lenders (the "2014 Facility") with a $100.0 million accordion feature, bearing interest at (i) either a U.S. dollar prime rate or a LIBOR Rate for borrowings denominated in U.S. Dollars, or (ii) either a Canadian dollar prime rate, or a Canadian Dealer Offered Rate, for borrowings denominated in Canadian dollars (in each case plus applicable margins, at the election of the borrowers and as a function of draw down currency). The 2014 Facility had a maturity date of December 30, 2019. The obligations under the 2014 Facility were secured by a first priority lien on substantially all of the Partnership's tangible and intangible assets. Additionally, a subsidiary of Delek Holdings provided a limited guaranty of the Partnership's obligations under the 2014 Facility. On September 28, 2018, the Partnership entered into a third amended and restated senior secured revolving credit agreement, which amended and restated the 2014 Facility (hereafter, the "DKL Credit Facility") with Fifth Third, as administrative agent, and a syndicate of lenders. The DKL Credit Facility contains a dual currency borrowing tranche that permits draw downs in U.S. or Canadian dollars. Under the terms of the DKL Credit Facility, among other things, the lender commitments were increased to $850.0 million . 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. Additionally, Delek Marketing, a subsidiary of Delek Holdings, had provided a limited guaranty of the Partnership's obligations under the DKL Credit Facility. Delek Marketing's guaranty was (i) limited to an amount equal to the principal amount, plus unpaid and accrued interest, of a promissory note made by Delek Holdings in favor of Delek Marketing (the "Holdings Note") and (ii) secured by Delek Marketing's pledge of the Holdings Note to the lenders under the DKL Credit Facility. Effective March 30, 2020, Delek Marketing's limited guaranty and pledge of the Holdings Note was terminated pursuant to a guaranty and pledge release approved by the required lenders under the DKL Credit Facility. 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 London Interbank Offered Rate (" 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 March 31, 2020 , the weighted average interest rate for our borrowings under the facility was approximately 3.70% . Additionally, the DKL Credit Facility requires us to pay a leverage ratio dependent quarterly fee on the average unused revolving commitment. As of March 31, 2020 , this fee was 0.40% per year. As of March 31, 2020 , we had $695.0 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 March 31, 2020 , were $155.0 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, commencing November 15, 2017. At any time prior to May 15, 2020, the Issuers may redeem up to 35% of the aggregate principal amount of the 2025 Notes with the net cash proceeds of one or more equity offerings by the Partnership at a redemption price of 106.750% of the redeemed principal amount, plus accrued and unpaid interest, if any, subject to certain conditions and limitations. Prior to May 15, 2020, the Issuers may redeem all or part of the 2025 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 May 15, 2020, th e Issuers may, subject to certain conditions and limitations, redeem all or part of the 2025 Notes at a redemption price of 105.063% of the redeemed principal for the twelve-month period beginning on May 15, 2020, 103.375% for 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 March 31, 2020 , we had $250.0 million in outstanding principal amount of the 2025 Notes. As of March 31, 2020 , the effective interest rate related to the 2025 Notes was approximately 7.2% . Outstanding borrowings under the 2025 Notes are net of deferred financing costs and debt discount of $3.8 million and $1.2 million , respectively, as of March 31, 2020 , and $4.0 million and $1.3 million , respectively, as of December 31, 2019

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For 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, the acquisition price of such partner's units and the taxable income allocation requirements under our Partnership Agreement.

Net Income Per Unit

Net Income Per Unit	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Net Income Per Unit	Net Income Per Unit We use the two-class method when calculating the net income per unit applicable to limited partners because we have more than one participating class of securities. Our participating securities consist of common units, general partner units and IDRs. The two-class method is based on the weighted-average number of common units outstanding during the period. Basic net income per unit applicable to limited partners is 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 is 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 are held by our general partner pursuant to our Partnership Agreement. The IDRs are paid following the close of each quarter. Pursuant to Amendment No. 2 to the Partnership Agreement, 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 ("IDR Waiver"). The IDR Waiver essentially reduces 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 Additional Units. An additional waiver letter has been signed that waives all of the distributions for the first quarter of 2020 on the Additional Units with respect to base distributions and the IDRs. Refer Note 3 for additional details. Earnings in excess of distributions are allocated to our general partner and limited partners based on their respective ownership interests. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income allocations used in the calculation of net income per unit. Diluted net income per unit applicable to common limited partners includes the effects of potentially dilutive units on our common units. As of March 31, 2020 , 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 March 31, 2020 is May 12, 2020 . The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended March 31, 2020 2019 Net income attributable to partners $ 27,796 $ 19,696 Less: General partner's distribution (including IDRs) (1) 9,139 7,424 Less: Limited partners' distribution 21,739 20,014 Distributions in excess of earnings $ (3,082 ) $ (7,742 ) General partner's earnings: Distributions (including IDRs) (1) $ 9,139 $ 7,424 Distributions in excess of earnings (62 ) (154 ) Total general partner's earnings $ 9,077 $ 7,270 Limited partners' earnings on common units: Distributions $ 21,739 $ 20,014 Distributions in excess of earnings (3,020 ) (7,588 ) Total limited partners' earnings on common units $ 18,719 $ 12,426 Weighted average limited partner units outstanding: Common units - basic 24,480,570 24,407,168 Common units - diluted 24,485,336 24,416,058 Net income per limited partner unit: Common units - basic $ 0.76 $ 0.51 Common units - diluted (2) $ 0.76 $ 0.51 (1) General partner distributions (including IDRs) consist of the 2.0% general partner interest and IDRs, which represent 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. See Note 8 for further discussion related to IDRs. (2) There were no outstanding common units excluded from the diluted earnings per unit calculation for the three months ended March 31, 2020 and 2019 .

Equity

Equity	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Equity	Equity We had 8,679,757 common limited partner units held by the public outstanding as of March 31, 2020 . Additionally, as of March 31, 2020 , Delek Holdings owned a 69.1% limited partner interest in us, consisting of 20,745,868 common limited partner units and a 94.6% interest in our general partner, which owns the entire 2.0% general partner interest consisting of 600,523 general partner units. Affiliates, who are also members of our general partner's management and board of directors, own the remaining 5.4% interest in our general partner. Equity Activity The table below summarizes the changes in the number of units outstanding from December 31, 2019 through March 31, 2020 . Common - Public Common - Delek Holdings General Partner Total Balance at December 31, 2019 9,131,579 15,294,046 498,482 24,924,107 General partner units issued to maintain 2% interest — — 102,041 102,041 Big Spring Gathering Assets Acquisition equity issuance — 5,000,000 — 5,000,000 Delek Holdings Unit purchases from public (451,822 ) 451,822 — — Balance at March 31, 2020 8,679,757 20,745,868 600,523 30,026,148 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 and our general partner. 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. Normal allocations according to percentage interests are made after giving effect to priority income allocations in an amount equal to incentive cash distributions allocated 100% to our general partner. 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 March 31, 2020 2019 Net income attributable to partners $ 27,796 $ 19,696 Less: General partner's IDRs (8,695 ) (7,016 ) Net income available to partners $ 19,101 $ 12,680 General partner's ownership interest 2.0 % 2.0 % General partner's allocated interest in net income 382 $ 254 General partner's IDRs 8,695 7,016 Total general partner's interest in net income $ 9,077 $ 7,270 Incentive Distribution Rights Our general partner is currently entitled to 2.0% of all quarterly distributions that we make prior to our liquidation. Our general partner has the right, but not the obligation, to contribute up to a proportionate amount of capital to us to maintain its current general partner interest. The general partner's 2.0% interest in these distributions may be reduced if we issue additional units in the future and our general partner does not contribute a proportionate amount of capital to us to maintain its 2.0% general partner interest. Our general partner also currently holds IDRs that entitle it to receive increasing percentages, up to a maximum of 48.0% , of the cash we distribute from operating surplus (as defined in our Partnership Agreement) in excess of 0.43125 per unit per quarter. The maximum distribution is 48.0% and does not include any distributions that our general partner or its affiliates may receive on common or general partner units that it owns. The IDRs held by our general partner currently entitle it to receive the maximum distribution. Pursuant to Amendment No. 2 to the Partnership Agreement, 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"). The IDR Waiver essentially reduces 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 Additional Units. An additional waiver letter has been signed that waives all of the distributions for the first quarter of 2020 on the Additional Units with respect to base distributions and the IDRs. 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 and general partner will receive. 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 Quarterly Distribution Per Limited Partner Unit, Annualized Total Cash Distribution, including general partner interest and IDRs (in thousands) Date of Distribution Unitholders Record Date March 31, 2019 $ 0.820 $ 3.28 $ 27,438 May 14, 2019 May 7, 2019 June 30, 2019 $ 0.850 $ 3.40 $ 28,914 August 13, 2019 August 5, 2019 September 30, 2019 $ 0.880 $ 3.52 $ 30,379 November 12, 2019 November 4, 2019 December 31, 2019 $ 0.885 $ 3.54 $ 30,634 February 12, 2020 February 4, 2020 March 31, 2020 $ 0.890 $ 3.56 $ 30,878 May 12, 2020 (1) May 5, 2020 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to general and limited partners for the three months ended March 31, 2020 and 2019 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 March 31, 2020 2019 General partner's distributions: General partner's distributions $ 444 $ 408 General partner's IDRs 8,695 7,016 Total general partner's distributions 9,139 7,424 Limited partners' distributions: Common limited partners' distributions 21,739 20,014 Total cash distributions $ 30,878 $ 27,438 Cash distributions per limited partner unit $ 0.890 $ 0.820

Equity Based Compensation

Equity Based Compensation	3 Months Ended
	Mar. 31, 2020
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 directors 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 is immaterial for the three months ended March 31, 2020 and 2019

Equity Method Investments

Equity Method Investments	3 Months Ended
	Mar. 31, 2020
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 start up capital pursuant to the Amended and Restated Limited Liability Company Agreement. Red River owns a crude oil pipeline running from Cushing, Oklahoma to Longview, Texas, with an expansion project planned to increase the pipeline capacity, which is expected to be completed during the first half of 2020. We contributed an additional $3.5 million related to such expansion project in May 2019. During the first quarter of 2020 , we made additional capital contributions totaling $8.2 million based on capital calls received. Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): March 31, 2020 December 31, 2019 Current Assets $ 29,016 $ 9,278 Non-current Assets $ 399,736 $ 381,778 Current liabilities $ 15,725 $ 8,291 Three Months Ended March 31, 2020 2019 Revenues $ 10,096 $ 11,262 Gross profit $ 5,887 $ 5,275 Net income $ 5,721 $ 4,710 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 and a 33% membership interest in the entity formed with Rangeland Energy II, LLC ("Rangeland Energy") to operate the other pipeline system. During 2018, Rangeland Energy was acquired by Andeavor 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): March 31, 2020 December 31, 2019 Current assets $ 24,508 $ 29,476 Non-current assets $ 260,871 $ 262,300 Current liabilities $ 3,181 $ 6,391 Three Months Ended March 31, 2020 2019 Revenues $ 15,447 $ 9,114 Gross profit $ 10,636 $ 4,896 Net Income $ 10,158 $ 4,417 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 March 31, 2020 and December 31, 2019 , the Partnership's investment balance in these joint ventures was $255.7 million and $247.0 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	3 Months Ended
	Mar. 31, 2020
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 pipelines 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 wholesale marketing and terminalling services to Delek Holdings' refining operations and independent third parties. 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 March 31, 2020 2019 Pipelines and Transportation Net revenues: Affiliate $ 38,502 $ 36,659 Third party 9,465 3,974 Total pipelines and transportation 47,967 40,633 Cost of materials and other 6,098 5,567 Operating expenses (excluding depreciation and amortization) 11,456 10,834 Segment contribution margin $ 30,413 $ 24,232 Capital spending $ 445 $ 424 Wholesale Marketing and Terminalling Net revenues: Affiliate (1) $ 68,197 $ 26,306 Third party 47,237 85,544 Total wholesale marketing and terminalling 115,434 111,850 Cost of materials and other 95,195 90,698 Operating expenses (excluding depreciation and amortization) 3,288 5,224 Segment contribution margin $ 16,951 $ 15,928 Capital spending $ 2,583 $ 480 Consolidated Net revenues: Affiliate $ 106,699 $ 62,965 Third party 56,702 89,518 Total Consolidated 163,401 152,483 Cost of materials and other 101,293 96,265 Operating expenses (excluding depreciation and amortization presented below) 14,744 16,058 Contribution margin 47,364 40,160 General and administrative expenses 6,130 4,473 Depreciation and amortization 6,299 6,574 Other operating (income) expense, net (107 ) 2 Operating income $ 35,042 $ 29,111 Capital spending $ 3,028 $ 904 (1) Affiliate revenue for the wholesale marketing and terminalling segment is presented net of amortization expense pertaining to the Marketing Contract Intangible Acquisition. See Note 3 for additional information. The following table summarizes the total assets for each segment as of March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Pipelines and transportation $ 849,840 $ 537,580 Wholesale marketing and terminalling 96,396 206,867 Total assets $ 946,236 $ 744,447 Property, plant and equipment and accumulated depreciation as of March 31, 2020 and depreciation expense by reporting segment for the three months ended March 31, 2020 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 556,418 $ 109,300 $ 665,718 Less: accumulated depreciation (144,046 ) (42,203 ) (186,249 ) Property, plant and equipment, net $ 412,372 $ 67,097 $ 479,469 Depreciation expense for the three months ended March 31, 2020 $ 4,606 $ 1,693 $ 6,299 In accordance with ASC 360, Property, Plant & Equipment , we evaluate the realizability of property, plant and equipment as events occur that might indicate potential impairment. There were no indicators of impairment of our property, plant and equipment as of March 31, 2020

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 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, saltwells, trucks and related operations, and may be subject to revocation, modification and renewal. See "Crude Oil and Other Releases" below for discussion of an enforcement action. 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 We have experienced several crude oil and other releases involving our assets. There were no releases that occurred during the first quarter of 2020 and five releases that occurred throughout the year 2019 . Cleanup operations and site maintenance and remediation efforts on these and other releases are at various stages of completion. The majority of the remediation efforts for these releases are substantially completed or have received regulatory closure. With the exception of the Sulphur Springs release defined below, we expect regulatory closure in 2020 for the release sites that have not yet received it. Many of the releases have occurred on our system of common carrier pipelines ("El Dorado Gathering System"). During the year ended December 31, 2019 , we decommissioned certain sections of the El Dorado Gathering System in an effort to improve the safety and integrity of the system. The decommissioning of these sections was completed in August 2019. The project did not have a material effect on the financial results. 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 March 31, 2020 , we have accrued $0.3 million for remediation and other such matters related to these releases. 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 . During the first quarter of 2020 , we incurred approximately $0.2 million of additional costs related to final clean-up of this release. The release is currently in boom maintenance. Ground water wells for monitoring activities are expected to be installed in May 2020 . We expect the monitoring period to last for at least a year. We have filed suit in January 2020 against a third party contractor, seeking damages related to this release. We have not received notification that any legal action with respect to fines and penalties will be pursued by the regulatory agencies. 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 Sulphur Springs Release above as it is 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. During the three months ended March 31, 2020 , we recorded a no minal amount of expenses, net of reimbursable costs. Additionally, during the three months ended March 31, 2019 , we recorded $0.1 million of expenses, which is net of total reimbursable costs of $3.4 million from Delek Holdings pursuant to the terms of the Omnibus Agreement. Letters of Credit As of March 31, 2020 , we had no

Leases

Leases	3 Months Ended
	Mar. 31, 2020
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 March 31, Three Months Ended March 31, (in thousands) 2020 2019 Lease Cost Operating lease cost $ 600 $ 1,427 Short-term lease cost (1) 320 477 Total lease cost $ 920 $ 1,904 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (600 ) $ (1,427 ) March 31, 2020 March 31, 2019 Weighted-average remaining lease term (years) for operating leases 3.8 4.2 Weighted-average discount rate (2) operating leases 7.3 % 8.0 % (1) Includes an immaterial amount of variable lease cost. (2) Our discount rate is primarily based on our incremental borrowing rate in accordance with ASC 842.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Distribution Declaration On April 21, 2020 , our general partner's board of directors declared a quarterly cash distribution of $0.890 per unit, payable on May 12, 2020 , to unitholders of record on May 5, 2020 . COVID-19 Pandemic and OPEC Production Disputes Subsequent Events

Organization and Basis of Pre_2

Organization and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2020
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, 2019 (our "Annual Report on Form 10-K"), filed with the Securities and Exchange Commission (the "SEC") on February 27, 2020 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, 2019
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.
New Accounting Pronouncements	New Accounting Pronouncements Adopted During 2020 ASU 2018-13, Fair Value Measurement - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the Financial Accounting Standards Board (the "FASB") issued guidance related to disclosure requirements for fair value measurements. The pronouncement eliminates, modifies and adds disclosure requirements for fair value measurements. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2019. We adopted this guidance on January 1, 2020 and the adoption did not have a material impact on our business, financial condition or results of operations. ASU 2016-13, Financial Instruments - Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued guidance requiring the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Organizations will now use forward-looking information to better inform their credit loss estimates. This guidance is effective for interim and annual periods beginning after December 15, 2019. We adopted this guidance on January 1, 2020 using the modified retrospective approach as of the adoption date. The adoption did not have a material impact on the Partnership’s operating results, financial position or disclosures. ASU 2018-15, Intangible - Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract In August 2018, the FASB issued guidance related to customers' accounting for implementation costs incurred in a cloud computing arrangement that is considered a service contract. This pronouncement aligns the requirements for capitalizing implementation costs in such arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This pronouncement is effective for fiscal year, and for interim periods within those fiscal years, beginning after December 15, 2019. Entities can choose to adopt the new guidance prospectively or retrospectively. We adopted this guidance on January 1, 2020 and elected the prospective method. The adoption did not have a material impact on our business, financial condition or results of operations. Accounting Pronouncements Not Yet Adopted ASU 2019-12, Simplifying the Accounting for Income Taxes In December 2019, the FASB issued guidance intended to simplify various aspects related to accounting for income taxes, eliminate certain exceptions within ASC 740 and clarify certain aspects of the current guidance to promote consistency among reporting entities. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 2020, with early adoption permitted. We expect to adopt this guidance on the effective date and are currently evaluating the impact that adopting this new guidance will have on our business, financial condition and results of operations. 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 FASB issued 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 do not expect the adoption of this ASU on its effective date will have a material impact on our business, financial condition or results of operations. 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 currently evaluating the impact this guidance may have on its consolidated financial statements and related disclosures.
Inventory	Inventory is stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis.
Net Income Per Unit	We use the two-class method when calculating the net income per unit applicable to limited partners because we have more than one participating class of securities. Our participating securities consist of common units, general partner units and IDRs. The two-class method is based on the weighted-average number of common units outstanding during the period. Basic net income per unit applicable to limited partners is 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 is 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 are held by our general partner pursuant to our Partnership Agreement. The IDRs are paid following the close of each quarter. Pursuant to Amendment No. 2 to the Partnership Agreement, 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 ("IDR Waiver"). The IDR Waiver essentially reduces 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 Additional Units. An additional waiver letter has been signed that waives all of the distributions for the first quarter of 2020 on the Additional Units with respect to base distributions and the IDRs. Refer Note 3 for additional details.
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)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 2019 Revenues $ 106,699 $ 62,965 Purchases from Affiliates $ 80,763 $ 79,434 Operating and maintenance expenses $ 12,757 $ 9,925 General and administrative expenses $ 3,369 $ 1,370

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 9,465 $ 191 $ 9,656 Product Revenue - Third Party — 47,046 47,046 Product Revenue - Affiliate — 51,503 51,503 Lease Revenue - Affiliate (1) 38,502 16,694 55,196 Total Revenue $ 47,967 $ 115,434 $ 163,401 (1) Net of $1.8 million of amortization expense for the three months ended March 31, 2020 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended March 31, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,974 $ 120 $ 4,094 Product Revenue - Third Party — 85,424 85,424 Product Revenue - Affiliate — 9,386 9,386 Lease Revenue - Affiliate (1) 36,659 16,920 53,579 Total Revenue $ 40,633 $ 111,850 $ 152,483 (1) Net of $1.8 million of amortization expense for the three months ended March 31, 2019 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	As of March 31, 2020 , we expect to recognize $1.3 billion in lease revenues 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 to ten years , which may be extended for various renewal terms. We disclose information about remaining performance obligations that have original expected durations of greater than one year . Our unfulfilled performance obligations as of March 31, 2020 were as follows (in thousands): Remainder of 2020 157,039 2021 209,150 2022 208,095 2023 202,287 2024 and thereafter $ 504,649 Total expected revenue on remaining performance obligations $ 1,281,220

Net Income Per Unit (Tables)

Net Income Per Unit (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Summary of Cash Distributions	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 March 31, 2020 is May 12, 2020 . The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended March 31, 2020 2019 Net income attributable to partners $ 27,796 $ 19,696 Less: General partner's distribution (including IDRs) (1) 9,139 7,424 Less: Limited partners' distribution 21,739 20,014 Distributions in excess of earnings $ (3,082 ) $ (7,742 ) General partner's earnings: Distributions (including IDRs) (1) $ 9,139 $ 7,424 Distributions in excess of earnings (62 ) (154 ) Total general partner's earnings $ 9,077 $ 7,270 Limited partners' earnings on common units: Distributions $ 21,739 $ 20,014 Distributions in excess of earnings (3,020 ) (7,588 ) Total limited partners' earnings on common units $ 18,719 $ 12,426 Weighted average limited partner units outstanding: Common units - basic 24,480,570 24,407,168 Common units - diluted 24,485,336 24,416,058 Net income per limited partner unit: Common units - basic $ 0.76 $ 0.51 Common units - diluted (2) $ 0.76 $ 0.51 (1) General partner distributions (including IDRs) consist of the 2.0% general partner interest and IDRs, which represent 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. See Note 8 for further discussion related to IDRs. (2) There were no outstanding common units excluded from the diluted earnings per unit calculation for the three months ended March 31, 2020 and 2019 .

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Schedule of Limited Partners' Capital Account by Class [Table Text Block]	The table below summarizes the changes in the number of units outstanding from December 31, 2019 through March 31, 2020 . Common - Public Common - Delek Holdings General Partner Total Balance at December 31, 2019 9,131,579 15,294,046 498,482 24,924,107 General partner units issued to maintain 2% interest — — 102,041 102,041 Big Spring Gathering Assets Acquisition equity issuance — 5,000,000 — 5,000,000 Delek Holdings Unit purchases from public (451,822 ) 451,822 — — Balance at March 31, 2020 8,679,757 20,745,868 600,523 30,026,148
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 March 31, 2020 2019 Net income attributable to partners $ 27,796 $ 19,696 Less: General partner's IDRs (8,695 ) (7,016 ) Net income available to partners $ 19,101 $ 12,680 General partner's ownership interest 2.0 % 2.0 % General partner's allocated interest in net income 382 $ 254 General partner's IDRs 8,695 7,016 Total general partner's interest in net income $ 9,077 $ 7,270
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 Quarterly Distribution Per Limited Partner Unit, Annualized Total Cash Distribution, including general partner interest and IDRs (in thousands) Date of Distribution Unitholders Record Date March 31, 2019 $ 0.820 $ 3.28 $ 27,438 May 14, 2019 May 7, 2019 June 30, 2019 $ 0.850 $ 3.40 $ 28,914 August 13, 2019 August 5, 2019 September 30, 2019 $ 0.880 $ 3.52 $ 30,379 November 12, 2019 November 4, 2019 December 31, 2019 $ 0.885 $ 3.54 $ 30,634 February 12, 2020 February 4, 2020 March 31, 2020 $ 0.890 $ 3.56 $ 30,878 May 12, 2020 (1) May 5, 2020 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to general and limited partners for the three months ended March 31, 2020 and 2019 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 March 31, 2020 2019 General partner's distributions: General partner's distributions $ 444 $ 408 General partner's IDRs 8,695 7,016 Total general partner's distributions 9,139 7,424 Limited partners' distributions: Common limited partners' distributions 21,739 20,014 Total cash distributions $ 30,878 $ 27,438 Cash distributions per limited partner unit $ 0.890 $ 0.820

Equity Method Investments (Tabl

Equity Method Investments (Tables)	3 Months Ended
	Mar. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Summary of Financial Information for Equity Method Investees	Combined summarized unaudited financial information for these two equity method investees on a 100% basis is shown below (in thousands): March 31, 2020 December 31, 2019 Current assets $ 24,508 $ 29,476 Non-current assets $ 260,871 $ 262,300 Current liabilities $ 3,181 $ 6,391 Three Months Ended March 31, 2020 2019 Revenues $ 15,447 $ 9,114 Gross profit $ 10,636 $ 4,896 Net Income $ 10,158 $ 4,417 Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): March 31, 2020 December 31, 2019 Current Assets $ 29,016 $ 9,278 Non-current Assets $ 399,736 $ 381,778 Current liabilities $ 15,725 $ 8,291 Three Months Ended March 31, 2020 2019 Revenues $ 10,096 $ 11,262 Gross profit $ 5,887 $ 5,275 Net income $ 5,721 $ 4,710

Segment Data (Tables)

Segment Data (Tables)	3 Months Ended
	Mar. 31, 2020
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 March 31, 2020 2019 Pipelines and Transportation Net revenues: Affiliate $ 38,502 $ 36,659 Third party 9,465 3,974 Total pipelines and transportation 47,967 40,633 Cost of materials and other 6,098 5,567 Operating expenses (excluding depreciation and amortization) 11,456 10,834 Segment contribution margin $ 30,413 $ 24,232 Capital spending $ 445 $ 424 Wholesale Marketing and Terminalling Net revenues: Affiliate (1) $ 68,197 $ 26,306 Third party 47,237 85,544 Total wholesale marketing and terminalling 115,434 111,850 Cost of materials and other 95,195 90,698 Operating expenses (excluding depreciation and amortization) 3,288 5,224 Segment contribution margin $ 16,951 $ 15,928 Capital spending $ 2,583 $ 480 Consolidated Net revenues: Affiliate $ 106,699 $ 62,965 Third party 56,702 89,518 Total Consolidated 163,401 152,483 Cost of materials and other 101,293 96,265 Operating expenses (excluding depreciation and amortization presented below) 14,744 16,058 Contribution margin 47,364 40,160 General and administrative expenses 6,130 4,473 Depreciation and amortization 6,299 6,574 Other operating (income) expense, net (107 ) 2 Operating income $ 35,042 $ 29,111 Capital spending $ 3,028 $ 904 (1) Affiliate revenue for the wholesale marketing and terminalling segment is presented net of amortization expense pertaining to the Marketing Contract Intangible Acquisition. See Note 3 for additional information. The following table summarizes the total assets for each segment as of March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Pipelines and transportation $ 849,840 $ 537,580 Wholesale marketing and terminalling 96,396 206,867 Total assets $ 946,236 $ 744,447 Property, plant and equipment and accumulated depreciation as of March 31, 2020 and depreciation expense by reporting segment for the three months ended March 31, 2020 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 556,418 $ 109,300 $ 665,718 Less: accumulated depreciation (144,046 ) (42,203 ) (186,249 ) Property, plant and equipment, net $ 412,372 $ 67,097 $ 479,469 Depreciation expense for the three months ended March 31, 2020 $ 4,606 $ 1,693 $ 6,299

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Lease, Cost	The following table presents additional information related to our operating leases in accordance ASC 842: Three Months Ended March 31, Three Months Ended March 31, (in thousands) 2020 2019 Lease Cost Operating lease cost $ 600 $ 1,427 Short-term lease cost (1) 320 477 Total lease cost $ 920 $ 1,904 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (600 ) $ (1,427 ) March 31, 2020 March 31, 2019 Weighted-average remaining lease term (years) for operating leases 3.8 4.2 Weighted-average discount rate (2) operating leases 7.3 % 8.0 % (1) Includes an immaterial amount of variable lease cost. (2)

Acquisitions - Narrative (Deta

Acquisitions - Narrative (Details) $ / shares in Units, $ in Millions	Mar. 31, 2020USD ($)storage_tankbblmi$ / sharesshares	Mar. 31, 2020USD ($)shares
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Asset Acquisition, Equity Interest Transfered As Consideration, Shares | shares		5,000,000
Big Spring Gathering Asset
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Consideration transferred	$ 100
Asset Acquisition, Equity Interest Transfered As Consideration, Shares | shares	5,000,000
Asset Acquisition, Equity Interest Transfered As Consideration, Market Price | $ / shares	$ 9.10
Asset Acquisition, Equity Interest Transfered As Consideration, Value	$ 109.5
Number Of Miles Of Gathering Systems | mi	200
Number of storage tanks | storage_tank	65
Total Storage Of Terminals | bbl	650,000
Asset Acquisition, Carry Value Of Assets Acquired	$ 209.5	$ 209.5

Related Party Transactions - Co

Related Party Transactions - Commercial Agreements (Details)	3 Months Ended
	Mar. 31, 2020
Minimum [Member]
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 - Th

Related Party Transactions - Throughput and Deficiency Agreement (Details) - Throughput and Deficiency Agreement - Delek US and affiliates $ in Millions	Mar. 31, 2020USD ($)bbl / pure
Related Party Transaction [Line Items]
Shipments Committed On The Gathering System (in Bbd)	120,000
Shipments Committed To Redelivery Point (in Bbd)	50,000
Commitment To Connect Additional Receipt Points	$ 33.8
Return On The Actual Costs (in percent)	12.50%
Collaborative Arrangement, Term	10 years

Related Party Transactions - O

Related Party Transactions - Omnibus Agreement (Details) - Delek US and affiliates - USD ($) $ in Thousands	Mar. 01, 2018	Mar. 31, 2020	Mar. 31, 2019
Operating and maintenance expense
Related Party Transaction [Line Items]
Expenses		$ 12,757	$ 9,925
Omnibus Agreement
Related Party Transaction [Line Items]
Related Party Annual Service Fee	$ 4,100
Omnibus Agreement | Delek US
Related Party Transaction [Line Items]
Receivable from related party		0
Reimbursement for costs incurred for asset failures			3,400
Omnibus Agreement | Delek US | Operating and maintenance expense
Related Party Transaction [Line Items]
Reimbursement for costs incurred for asset failures		0	3,500
Omnibus Agreement | Delek US | Other long term liabilities
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Delek Holdings		600	800
DPG Management Agreement, Operating Service And Construction Fee Paid To Partnership
Related Party Transaction [Line Items]
Expenses		$ 900	$ 1,900

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2020	Mar. 01, 2020	Feb. 29, 2020
Related Party Transaction [Line Items]
Stock Repurchased During Period, Shares			0
Stock Repurchased During Period, Value		$ 5
Asset Acquisition, Equity Interest Transfered As Consideration, Shares			5,000,000
Waiver Termination Threshold, Percent	110.00%
Delek US and affiliates
Related Party Transaction [Line Items]
Related Party. Ownership Percentage In Company	70.50%	70.50%	70.50%	62.60%	64.50%
Big Spring Gathering Asset
Related Party Transaction [Line Items]
Asset Acquisition, Equity Interest Transfered As Consideration, Shares	5,000,000

Related Party Transactions - S

Related Party Transactions - Summary of Transactions (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Revenue from Related Parties	[1]	$ 106,699	$ 62,965
Delek US and affiliates
Related Party Transaction [Line Items]
Revenue from Related Parties		106,699	62,965
General and administrative expenses		3,369	1,370
Purchases from Affiliates [Member] | Delek US and affiliates
Related Party Transaction [Line Items]
Expenses		80,763	79,434
Operating and maintenance expense | Delek US and affiliates
Related Party Transaction [Line Items]
Expenses		$ 12,757	$ 9,925
[1]	See Note 3 for a description of our material affiliate revenue transactions.

Related Party Transactions - Q

Related Party Transactions - Quarterly Cash Distributions (Details) - USD ($) $ in Thousands	May 12, 2020	Feb. 12, 2020	Nov. 12, 2019	Aug. 13, 2019	May 14, 2019	Feb. 12, 2019
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 30,634	$ 30,379	$ 28,914	$ 27,438	$ 26,900
Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 30,878
Delek US and affiliates
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 22,600				$ 19,600
Delek US and affiliates | Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 23,200

Revenues (Details)

Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 479,469		$ 295,044
Total revenue	163,401	$ 152,483
Amortization of customer contract intangible assets	1,803	1,803
Revenue, remaining performance obligation	1,281,220
Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	9,656	4,094
Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	47,046	85,424
Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	51,503	9,386
Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	55,196	53,579
Pipelines and transportation
Disaggregation of Revenue [Line Items]
Property, plant and equipment	412,372
Total revenue	47,967	40,633
Pipelines and transportation | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	9,465	3,974
Pipelines and transportation | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Pipelines and transportation | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Pipelines and transportation | Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	38,502	36,659
Wholesale marketing and terminalling
Disaggregation of Revenue [Line Items]
Property, plant and equipment	67,097
Total revenue	115,434	111,850
Wholesale marketing and terminalling | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	191	120
Wholesale marketing and terminalling | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	47,046	85,424
Wholesale marketing and terminalling | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	51,503	9,386
Wholesale marketing and terminalling | Lease Revenue - Affiliate (1)
Disaggregation of Revenue [Line Items]
Total revenue	16,694	$ 16,920
Assets Leased to Others [Member]
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 279,000
Maximum
Disaggregation of Revenue [Line Items]
Commercial Agreements, Initial Term	10 years
Minimum [Member]
Disaggregation of Revenue [Line Items]
Commercial Agreements, Initial Term	5 years

Revenues - Remaining Performanc

Revenues - Remaining Performance Obligation Expected Timing of Satisfaction - Period (Details) $ in Thousands	Mar. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 1,281,220
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 157,039
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 209,150
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
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	$ 208,095
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
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	$ 202,287
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
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	$ 504,649
Revenue, remaining performance obligation, expected timing of satisfaction

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Inventories	$ 5,133	$ 12,617
Cost of Sales
Inventory [Line Items]
Inventory Write-down	$ 2,900

Long-Term Obligations - Second

Long-Term Obligations - Second Amended and Restated Credit Agreement (Details) - Line of Credit - Revolving Credit Facility - Fifth Third Bank - USD ($)	Dec. 30, 2014	Mar. 31, 2020	Sep. 28, 2018	Sep. 27, 2018
Line of Credit Facility [Line Items]
Weighted average interest rate (as percent)		3.70%
Prime Rate | United States of America, Dollars
Line of Credit Facility [Line Items]
Variable rate description	U.S. dollar prime rate
London Interbank Offered Rate (LIBOR) | United States of America, Dollars
Line of Credit Facility [Line Items]
Variable rate description	LIBOR
Canadian prime rate | Canada, Dollars
Line of Credit Facility [Line Items]
Variable rate description	Canadian dollar prime rate
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 Facility [Line Items]
Maximum lender commitment			$ 850,000,000	$ 700,000,000
Line Of Credit Facility, Accordion Feature, Increase Limit				$ 100,000,000
Maximum amount under accordion feature			$ 1,000,000,000
Second Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Commitment fee (as percent)		0.40%
Outstanding borrowings		$ 695,000,000
Letters of credit outstanding		0
Unused credit commitment		$ 155,000,000

Long-Term Obligations - 6.75%

Long-Term Obligations - 6.75% Senior Notes Due 2025 (Details) - Senior Notes - Senior 2025 Notes - USD ($)	May 23, 2017	Mar. 31, 2020	Dec. 31, 2019
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		7.20%
Deferred financing costs		$ 3,800,000	$ 4,000,000
Debt discount		$ 1,200,000	$ 1,300,000
Anytime prior to May 15, 2020
Debt Instrument [Line Items]
Redemption price, percentage of principal amount redeemed (as percent)	35.00%
Redemption price (as percent)	106.75%
Twelve-month period beginning on May 15, 2020
Debt Instrument [Line Items]
Redemption price (as percent)	105.063%
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%

Net Income Per Unit - Narrativ

Net Income Per Unit - Narrative (Details) - shares	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019
Asset Acquisition, Equity Interest Transfered As Consideration, Shares		5,000,000
General Partnership [Member]
General partner's ownership interest (as percent)		2.00%	2.00%
Big Spring Gathering Asset
Asset Acquisition, Equity Interest Transfered As Consideration, Shares	5,000,000

Net Income Per Unit (Details)

Net Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income Per Unit [Line Items]
Net income attributable to partners	$ 27,796	$ 19,696
Less: Partners' distribution	21,739	20,014
Distributions in excess of earnings	$ (3,082)	$ (7,742)
Common units - (basic) (in shares)	24,480,570	24,407,168
Common units - (diluted) (in shares)	24,485,336	24,416,058
Common units - (basic) (in dollars per share)	$ 0.76	$ 0.51
Common units - (diluted) (in dollars per share)	$ 0.76	$ 0.51
General Partner
Net Income Per Unit [Line Items]
Net income attributable to partners	$ 9,077	$ 7,270
Less: General partner's distribution (including IDRs)	9,139	7,424
Distributions in excess of earnings	(62)	(154)
Total partner's earnings	9,077	7,270
Common unitholders
Net Income Per Unit [Line Items]
Less: Partners' distribution	21,739	20,014
Distributions in excess of earnings	$ (3,020)	$ (7,588)
Common units - (basic) (in shares)	24,480,570	24,407,168
Common units - (diluted) (in shares)	24,485,336	24,416,058
Common units - (basic) (in dollars per share)	$ 0.76	$ 0.51
Common units - (diluted) (in dollars per share)	$ 0.76	$ 0.51
Common unitholders | Common Units
Net Income Per Unit [Line Items]
Total partner's earnings	$ 18,719	$ 12,426
Maximum
Footnote [Abstract]
Distribution Payment Targets	$ 0.43125
General Partnership [Member]
Footnote [Abstract]
General partner's ownership interest (as percent)	2.00%	2.00%

Equity - Narrative (Details)

Equity - Narrative (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Delek US
Class of Stock [Line Items]
Ownership Interest in General Partner (as percent)	94.60%
Affiliates
Class of Stock [Line Items]
Ownership Interest in General Partner (as percent)	5.40%
Limited Partner | Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)	8,679,757		9,131,579
Limited Partner | Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)	20,745,868		15,294,046
General Partner
Class of Stock [Line Items]
General partner units outstanding (units)	600,523		498,482
Delek US Holdings, Inc.
Class of Stock [Line Items]
Delek's limited partner ownership interest (as percent)	69.10%
General Partnership [Member]
Class of Stock [Line Items]
General partner's ownership interest (as percent)	2.00%	2.00%

Equity - Equity Activity (Deta

Equity - Equity Activity (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	24,924,107
Ending Balance	30,026,148
General partner units issued to maintain 2% interest	102,041
Big Spring Gathering Assets Acquisition equity issuance	5,000,000
Delek Holdings Unit purchases from public	0
Limited Partner | Common unitholders - public
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	9,131,579
Ending Balance	8,679,757
General partner units issued to maintain 2% interest	0
Big Spring Gathering Assets Acquisition equity issuance	0
Delek Holdings Unit purchases from public	(451,822)
Limited Partner | Common unitholders - Delek
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	15,294,046
Ending Balance	20,745,868
General partner units issued to maintain 2% interest	0
Big Spring Gathering Assets Acquisition equity issuance	5,000,000
Delek Holdings Unit purchases from public	451,822
General Partner
Increase (Decrease) in Partners' Capital (Roll Forward)
Beginning Balance	498,482
Ending Balance	600,523
General partner units issued to maintain 2% interest	102,041
Big Spring Gathering Assets Acquisition equity issuance	0
Delek Holdings Unit purchases from public	0
General Partnership [Member]
General partner's ownership interest (as percent)	2.00%	2.00%

Equity - Allocations of Net In

Equity - Allocations of Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income attributable to partners	$ 27,796	$ 19,696
Less: General partner's IDRs	(8,695)	(7,016)
Net income available to partners	19,101	12,680
General partner's allocated interest in net income	382	254
General partner's IDRs	8,695	7,016
Total general partner's interest in net income	$ 9,077	$ 7,270
General Partnership [Member]
General partner's ownership interest (as percent)	2.00%	2.00%

Equity - Incentive Distributio

Equity - Incentive Distribution Rights (Details) - $ / shares	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019
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%
Asset Acquisition, Equity Interest Transfered As Consideration, Shares		5,000,000
Maximum
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Payment Targets		$ 0.43125
General Partnership [Member]
Equity [Abstract]
General partner's ownership interest (as percent)		2.00%	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	5,000,000

Equity - Cash Distributions (D

Equity - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	May 12, 2020	Feb. 12, 2020	Nov. 12, 2019	Aug. 13, 2019	May 14, 2019	Feb. 12, 2019	Mar. 31, 2020	Mar. 31, 2019
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Paid (in dollars per share)		$ 0.885	$ 0.880	$ 0.850	$ 0.820
Total Quarterly Distribution Per Limited Partner Unit, Annualized - Paid (in dollars per share)		$ 3.54	$ 3.52	$ 3.40	$ 3.28
Total Cash Distribution, including general partner interest and IDRs		$ 30,634	$ 30,379	$ 28,914	$ 27,438	$ 26,900
Total Quarterly Distribution Per Limited Partner Unit - Declared (in dollars per share)							$ 0.890	$ 0.820
Subsequent Event
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Paid (in dollars per share)	$ 0.890
Total Quarterly Distribution Per Limited Partner Unit, Annualized - Paid (in dollars per share)	$ 3.56
Total Cash Distribution, including general partner interest and IDRs	$ 30,878

Equity - Distributions Earned

Equity - Distributions Earned (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
General partner's distributions	$ 444	$ 408
General partner's IDRs	8,695	7,016
Total general partner's distributions	9,139	7,424
Common limited partners' distributions	21,739	20,014
Total cash distributions	$ 30,878	$ 27,438
Cash distributions per limited partner unit (in dollars per share)	$ 0.890	$ 0.820

Equity Method Investments (Det

Equity Method Investments (Details) $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2019USD ($)	Mar. 31, 2020USD ($)joint_venture	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investments, number of joint ventures | joint_venture		3
Investment in joint ventures		$ 255,743		$ 246,984
Payments to Acquire Equity Method Investments		$ 8,229	$ 3,401
Red River
Schedule of Equity Method Investments [Line Items]
Ownership interest (as percent)	33.00%
Investment in joint ventures	$ 124,700
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	$ 8,200

Equity Method Investments - Sum

Equity Method Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Red River
Schedule of Equity Method Investments [Line Items]
Current Assets	$ 29,016		$ 9,278
Non-current Assets	399,736		381,778
Current liabilities	15,725		8,291
Revenues	10,096	$ 11,262
Gross profit	5,887	5,275
Net income	5,721	4,710
Andeavor Logistics
Schedule of Equity Method Investments [Line Items]
Revenues	15,447	9,114
Gross profit	10,636	4,896
Net income	10,158	$ 4,417
Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Current Assets	24,508		29,476
Non-current Assets	260,871		262,300
Current liabilities	$ 3,181		$ 6,391

Segment Data - Narrative (Detai

Segment Data - Narrative (Details)	3 Months Ended
	Mar. 31, 2020segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segment Data (Details)

Segment Data (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Affiliates (1)	[1]	$ 106,699	$ 62,965
Third party		56,702	89,518
Net revenues		163,401	152,483
Cost of materials and other		101,293	96,265
Operating expenses (excluding depreciation and amortization presented below)		14,744	16,058
Segment contribution margin		47,364	40,160
General and administrative expenses		6,130	4,473
Depreciation and amortization		6,299	6,574
(Gain) loss on asset disposals		(107)	2
Other Operating Income (Expense), Net		107	(2)
Operating income		35,042	29,111
Capital spending		3,028	904
Total assets		946,236		$ 744,447
Pipelines and transportation
Segment Reporting Information [Line Items]
Affiliates (1)		38,502	36,659
Third party		9,465	3,974
Net revenues		47,967	40,633
Operating expenses (excluding depreciation and amortization presented below)		11,456	10,834
Segment contribution margin		30,413	24,232
Capital spending		445	424
Total assets		849,840		537,580
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Affiliates (1)		68,197	26,306
Third party		47,237	85,544
Net revenues		115,434	111,850
Operating expenses (excluding depreciation and amortization presented below)		3,288	5,224
Segment contribution margin		16,951	15,928
Capital spending		2,583	480
Total assets		96,396		$ 206,867
Service
Segment Reporting Information [Line Items]
Cost of materials and other		101,293	96,265
Service | Pipelines and transportation
Segment Reporting Information [Line Items]
Cost of materials and other		6,098	5,567
Service | Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Cost of materials and other		$ 95,195	$ 90,698
[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
	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 665,718	$ 461,325
Less: accumulated depreciation	(186,249)	(166,281)
Property, plant and equipment, net	479,469	$ 295,044
Depreciation expense	6,299
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	556,418
Less: accumulated depreciation	(144,046)
Property, plant and equipment, net	412,372
Depreciation expense	4,606
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	109,300
Less: accumulated depreciation	(42,203)
Property, plant and equipment, net	67,097
Depreciation expense	$ 1,693

Commitments and Contingencies

Commitments and Contingencies - Crude Oil Releases (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies, period increase (decrease)	$ 0	$ 0.1
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses	0.2		$ 7.1
Operating Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	0.3
Delek US | Omnibus Agreement | Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures		3.4
Delek US | Omnibus Agreement | Operating Expense [Member] | Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures	$ 0	$ 3.5

Commitments and Contingencies_2

Commitments and Contingencies - Letters of Credit (Details)	Mar. 31, 2020USD ($)
Second Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Fifth Third Bank
Debt Instrument [Line Items]
Letters of credit outstanding	$ 0

Leases - Lease Cost and Other I

Leases - Lease Cost and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease cost	$ 600	$ 1,427
Short-term lease cost	320	477
Total lease cost	920	1,904
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ (600)	$ (1,427)
Weighted-average remaining lease term (years) for operating leases	3 years 9 months 18 days	4 years 2 months 12 days
Weighted-average discount rate (2) operating leases	7.30%	8.00%

Subsequent Events - Distributi

Subsequent Events - Distribution Declaration (Details) - $ / shares	May 12, 2020	Feb. 12, 2020	Nov. 12, 2019	Aug. 13, 2019	May 14, 2019	Mar. 31, 2020	Mar. 31, 2019
Subsequent Event [Line Items]
Distribution Made to Limited Partner, Distributions Paid, Per Unit		$ 0.885	$ 0.880	$ 0.850	$ 0.820
Cash distributions per limited partner unit (in dollars per share)						$ 0.890	$ 0.820
Subsequent Event
Subsequent Event [Line Items]
Distribution Made to Limited Partner, Distributions Paid, Per Unit	$ 0.890