Delek Logistics Partners (DKL) 10-Q 8 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
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	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common unitholders
Entity Information [Line Items]
Entity Partnership Units Outstanding		24,417,285
General Partner
Entity Information [Line Items]
Entity Partnership Units Outstanding		498,312

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 6,353	$ 4,522
Accounts receivable	19,998	21,586
Inventory	7,695	5,491
Other current assets	2,714	969
Total current assets	36,760	32,568
Property, plant and equipment:
Property, plant and equipment	457,716	452,746
Less: accumulated depreciation	(159,623)	(140,184)
Property, plant and equipment, net	298,093	312,562
Equity method investments	246,998	104,770
Operating lease right-of-use assets	18,297
Goodwill	12,203	12,203
Marketing Contract Intangible, net	132,802	138,210
Other non-current assets	22,654	24,280
Total assets	767,807	624,593
Current liabilities:
Accounts payable	12,477	14,226
Accounts payable to related parties	2,817	7,833
Excise and other taxes payable	1,722	4,069
Current portion of operating lease liabilities	4,836
Accrued expenses and other current liabilities	10,489	10,377
Total current liabilities	32,341	36,505
Non-current liabilities:
Long-term debt	840,765	700,430
Asset retirement obligations	5,489	5,191
Operating lease liabilities, net of current portion	13,462
Other non-current liabilities	18,240	17,290
Total non-current liabilities	877,956	722,911
Deficit:
Total deficit	(142,490)	(134,823)
Total liabilities and deficit	767,807	624,593
Common unitholders | Common unitholders - public; 9,123,239 units issued and outstanding at September 30, 2019 (9,109,807 at December 31, 2018)
Deficit:
Total deficit	167,650	171,023
Common unitholders | Common unitholders - Delek Holdings; 15,294,046 units issued and outstanding at September 30, 2019 (15,294,046 at December 31, 2018)
Deficit:
Total deficit	(305,152)	(299,360)
General partner - 498,312 units issued and outstanding at September 30, 2019 (498,038 at December 31, 2018)
Deficit:
Total deficit	$ (4,988)	$ (6,486)

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - shares	Sep. 30, 2019	Dec. 31, 2018
General partner - Delek, units issued	498,312	498,038
Common unitholders - public
Common unitholders, units issued	9,123,239	9,109,807
Common unitholders - Delek
Common unitholders, units issued	15,294,046	15,294,046

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net revenues:
Affiliates (1)	[1]	$ 66,647	$ 63,835	$ 191,530	$ 178,559
Third party		70,909	100,275	253,852	319,752
Net revenues		137,556	164,110	445,382	498,311
Cost of sales:
Cost of materials and other		72,594	105,596	262,713	330,644
Operating expenses (excluding depreciation and amortization presented below)		17,490	14,489	49,318	40,501
Depreciation and amortization		6,138	6,252	18,450	18,287
Total cost of sales		96,222	126,337	330,481	389,432
Operating expenses (excluding depreciation and amortization presented below)		945	906	2,502	2,388
General and administrative expenses		5,280	3,076	15,046	9,798
Depreciation and amortization		450	450	1,351	1,434
(Gain) loss on asset disposals		(70)	717	(95)	648
Total operating costs and expenses		102,827	131,486	349,285	403,700
Operating income		34,729	32,624	96,097	94,611
Interest expense, net		12,509	11,108	35,164	30,096
Income from equity method investments		(8,394)	(1,924)	(14,860)	(4,681)
Other expense, net		0	8	461	8
Total non-operating expenses, net		4,115	9,192	20,765	25,423
Income before income tax expense		30,614	23,432	75,332	69,188
Income tax expense		84	106	220	285
Net income attributable to partners		30,530	23,326	75,112	68,903
Comprehensive income attributable to partners		30,530	23,326	75,112	68,903
Less: General partner's interest in net income, including incentive distribution rights		8,895	6,636	24,244	18,478
Limited partners' interest in net income		$ 21,635	$ 16,690	$ 50,868	$ 50,425
Weighted average limited partner units outstanding:
Cash distributions per limited partner unit (in dollars per share)		$ 0.880	$ 0.790	$ 2.550	$ 2.310
Common Units
Net income per limited partner unit:
Common units - (basic) (in dollars per share)		0.89	0.68	2.08	2.07
Common units - (diluted) (in dollars per share)		$ 0.89	$ 0.68	$ 2.08	$ 2.07
Weighted average limited partner units outstanding:
Common units - (basic) (in shares)		24,417,285	24,395,183	24,411,308	24,387,995
Common units - (diluted) (in shares)		24,420,582	24,401,908	24,417,466	24,395,880
[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
Beginning balance at Dec. 31, 2017	$ (29,225)	$ (6,397)	$ 174,378	$ (197,206)
Distributions to Delek Holdings for Big Spring Asset Acquisition	(98,798)	(1,976)		(96,822)
Cash distributions	(71,845)	(17,010)	(20,500)	(34,335)
General partner units issued to maintain 2% interest	20	20
Net income attributable to partners	68,903	18,478	18,808	31,617
Other	518	10	189	319
Ending balance at Sep. 30, 2018	(130,427)	(6,875)	172,875	(296,427)
Beginning balance at Jun. 30, 2018	(128,962)	(7,322)	173,607	(295,247)
Cash distributions	(25,014)	(6,200)	(7,037)	(11,777)
Net income attributable to partners	23,326	6,636	6,227	10,463
Other	216	4	78	134
Ending balance at Sep. 30, 2018	(130,427)	(6,875)	172,875	(296,427)
Beginning balance at Dec. 31, 2018	(134,823)	(6,486)	171,023	(299,360)
Cash distributions	(83,271)	(22,762)	(22,580)	(37,929)
General partner units issued to maintain 2% interest	8	8
Net income attributable to partners	75,112	24,244	19,027	31,841
Other	484	8	180	296
Ending balance at Sep. 30, 2019	(142,490)	(4,988)	167,650	(305,152)
Beginning balance at Jun. 30, 2019	(144,300)	(5,727)	167,254	(305,827)
Cash distributions	(28,914)	(8,159)	(7,755)	(13,000)
Net income attributable to partners	30,530	8,895	8,084	13,551
Other	194	3	67	124
Ending balance at Sep. 30, 2019	$ (142,490)	$ (4,988)	$ 167,650	$ (305,152)

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows ( Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 75,112	$ 68,903
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,801	19,721
Non-cash lease expense	2,554
Amortization of customer contract intangible assets	5,408	4,207
Amortization of deferred revenue	(1,248)	(1,095)
Amortization of deferred financing costs and debt discount	2,054	1,984
Accretion of asset retirement obligations	298	267
Deferred income taxes	115	0
Income from equity method investments	(14,860)	(4,681)
Dividends from equity method investments	9,188	5,128
(Gain) loss on asset disposals	(95)	648
Other non-cash adjustments	484	518
Changes in assets and liabilities:
Accounts receivable	1,588	1,198
Inventories and other current assets	(3,290)	17,022
Accounts payable and other current liabilities	(7,613)	(4,311)
Accounts receivable/payable to related parties	(5,016)	(50,030)
Non-current assets and liabilities, net	109	(1,879)
Net cash provided by operating activities	84,589	57,600
Cash flows from investing activities:
Asset acquisitions, net of assumed asset retirement obligation liabilities	0	(72,222)
Purchases of property, plant and equipment	(4,964)	(8,674)
Proceeds from sales of property, plant and equipment	144	465
Purchases of intangible assets	0	(144,219)
Distributions from equity method investments	804	957
Equity method investment contributions	(137,361)	(172)
Net cash used in investing activities	(141,377)	(223,865)
Cash flows from financing activities:
Proceeds from issuance of additional units to maintain 2% General Partner interest	8	20
Distributions to general partner	(22,762)	(17,010)
Distributions to common unitholders - public	(22,580)	(20,500)
Distributions to common unitholders - Delek Holdings	(37,929)	(34,335)
Distributions to Delek Holdings unitholders and general partner related to Big Spring Logistic Assets Acquisition	0	(98,798)
Proceeds from revolving credit facility	476,400	678,000
Payments on revolving credit facility	(336,800)	(324,700)
Deferred financing costs paid	0	(5,264)
Reimbursement of capital expenditures by Delek Holdings	2,282	3,183
Net cash provided by financing activities	58,619	180,596
Net increase in cash and cash equivalents	1,831	14,331
Cash and cash equivalents at the beginning of the period	4,522	4,675
Cash and cash equivalents at the end of the period	6,353	19,006
Cash paid during the period for:
Interest	29,003	24,446
Income taxes	143	136
Non-cash investing activities:
Increase/(Decrease) in accrued capital expenditures	1,274	$ (1,836)
Non-cash financing activities:
Leased assets obtained in exchange for new operating lease liabilities	649
Non-cash lease liability arising from recognition of right of use assets upon adoption of ASU 2016-02	$ 20,202

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Cash Flows [Abstract]
General partner's ownership interest	2.00%	2.00%	2.00%	2.00%

Organization and Basis of Prese

Organization and Basis of Presentation	9 Months Ended
	Sep. 30, 2019
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 1, 2018 , the Partnership, through its wholly-owned subsidiary DKL Big Spring, LLC, acquired from Delek Holdings certain logistics assets primarily located at or adjacent to Delek Holdings' refinery near Big Spring, Texas (the "Big Spring Refinery") and Delek Holdings' light products distribution terminal located in Stephens County, Oklahoma (collectively, the "Big Spring Logistic Assets" and such transaction the "Big Spring Logistic Assets Acquisition"). See Note 2 for further information regarding the Big Spring Logistic Assets Acquisition. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. 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, 2018 (our "Annual Report on Form 10-K"), filed with the Securities and Exchange Commission (the "SEC") on March 1, 2019 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, 2018 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 prior period amounts have been reclassified in order to conform to the current period presentation. New Accounting Pronouncements Adopted During 2019 ASU 2016-02, Leases In February 2016, the Financial Accounting Standards Board (the "FASB") issued guidance that requires the recognition of a lease liability and a right-of-use asset, initially measured at the present value of the lease payments, in the statement of financial condition for all leases with terms longer than one year. The guidance was subsequently amended to consider the impact of practical expedients and provide additional clarifications. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We adopted the new lease standard on January 1, 2019. We elected the package of practical expedients which, among other things, allows us to carry forward the historical lease classification. For certain lease classes, we have elected the practical expedient not to separate lease and non-lease components, which allows us to combine the components if certain criteria are met. Further, we elected the optional transition method, which allows us to recognize a cumulative-effect adjustment to the opening balance sheet of retained earnings at the date of adoption and to not recast our comparative periods. We have not elected the hindsight practical expedients, which would have allowed us to use hindsight in determining the reasonably certain lease term. The adoption of the lease accounting guidance had no impact on January 1, 2019 partners' equity and resulted in the recognition of a $20.2 million lease liability and a corresponding right-of-use asset on our consolidated balance sheet. The adoption did not have a material impact on our consolidated statement of income. See Note 14 for further information. Accounting Pronouncements Not Yet Adopted ASU 2018-13, Fair Value Measurement - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, 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, with early adoption permitted. We expect to adopt this guidance on the effective date and do not expect adopting this new guidance will 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. We are currently evaluating the impact that adopting this new guidance will

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2019
Acquisitions [Abstract]
Acquisitions	Acquisitions Big Spring Logistic Assets Acquisition Effective March 1, 2018 , the Partnership, through its wholly-owned subsidiary DKL Big Spring, LLC, acquired the Big Spring Logistic Assets from Delek Holdings, which are primarily located at or adjacent to the Big Spring Refinery. The total purchase price was $170.8 million , financed through borrowings under the Partnership’s revolving credit facility. The Big Spring Logistic Assets included (i) approximately 75 storage tanks and certain ancillary assets, (ii) an asphalt terminal and a light products terminal; (iii) certain crude oil and refined product pipelines; and (iv) other logistics assets, such as four underground saltwells used for natural gas liquids storage. In connection with the closing of the transaction, Delek Holdings, the Partnership and various of their respective subsidiaries entered into new contracts and amended certain existing contracts, including entering into new pipelines, storage and throughput facilities and asphalt services agreements. The transaction and related agreements were approved by the Conflicts Committee of the board of the Partnership's general partner, which is comprised solely of independent directors. See our Annual Report on Form 10-K for more detailed descriptions of these agreements. The Big Spring Logistic Assets Acquisition was considered a transaction between entities under common control. Accordingly, the Big Spring Logistic Assets were recorded at amounts based on Delek Holdings' historical carrying value as of the acquisition date. The excess of the cash paid over the historical carrying value of the assets acquired from Delek Holdings amounted to $98.8 million and was recorded as a reduction in equity. The historical carrying value of the Big Spring Logistic Assets as of the acquisition date was $72.0 million , which is net of $0.8 million of assumed asset retirement obligations. Prior periods have not been recast, as these assets did not constitute a business in accordance with ASU 2017-01, Clarifying the Definition of a Business. We capitalized approximately $0.4 million of acquisition costs related to the Big Spring Logistic Assets Acquisition during the nine months ended September 30, 2018 . We did not capitalize any acquisition costs during the three months ended September 30, 2018 . Marketing Contract Intangible Acquisition Additionally, concurrent with the Big Spring Logistic Assets Acquisition, Delek Holdings, the Partnership and various of their respective subsidiaries entered into a new marketing agreement, whereby the Partnership markets certain refined products produced at or sold from the Big Spring Refinery to various customers in return for a marketing fee (the "Marketing Contract Intangible Acquisition"). We recorded a related contract intangible asset in the amount of $144.2 million based on the amount paid to enter into the contract, which represents the fair value of the intangible asset. The contract intangible asset is amortized over a twenty year period as a component of net revenues from affiliates. The total consideration paid was financed through borrowings under the Partnership's revolving credit facility. This transaction and related marketing agreement were approved by the Conflicts Committee of the board of the Partnership's general partner, which is comprised solely of independent directors. See Note 3

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2019
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 in 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. 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 (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 $ 3.9 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 $0.8 million and $2.3 million during the three and nine months ended September 30, 2019 , respectively. We were reimbursed $0.5 million and $3.2 million during the three and nine months ended September 30, 2018 , 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 September 30, 2019 , we have recorded a receivable of $0.3 million 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 $0.3 million and $6.0 million for these matters during the three and nine months ended September 30, 2019 , respectively. We were reimbursed $1.4 million and $7.8 million for such matters during the three and nine months ended September 30, 2018 , respectively. Other Transactions Starting in 2018, 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 "Delek Permian Gathering Project"). 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 and nine months ended September 30, 2019 were $0.8 million and $3.6 million , respectively and are recorded in affiliate revenue in our condensed consolidated statement of income. No fees were paid for the three and nine months ended September 30, 2018 . 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. Summary of Transactions Revenues from affiliates consist primarily of revenues from gathering, transportation, storage, offloading, Renewable Identification Numbers, wholesale marketing and products terminalling services provided primarily to Delek Holdings based on regulated tariff rates or contractually based fees and product sales. Affiliate operating expenses are primarily comprised of amounts we reimburse Delek Holdings, or our general partner, as the case may be, for the services provided to us under the Partnership Agreement. These expenses could also include reimbursement and indemnification amounts from Delek Holdings, as provided under the Omnibus Agreement. Additionally, the Partnership is required to reimburse Delek Holdings for direct or allocated costs and expenses incurred by Delek Holdings on behalf of the Partnership and for charges Delek Holdings incurred for the management and operation of our logistics assets, including an annual fee for various centralized corporate services, which are included in general and administrative expenses. In addition to these transactions, we purchase refined products and bulk biofuels from Delek Holdings, the costs of which are included in cost of materials and other. A summary of revenue, purchases from affiliates and expense transactions with Delek Holdings and its affiliates are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 66,647 $ 63,835 $ 191,530 $ 178,559 Purchases from Affiliates $ 66,578 $ 86,944 $ 219,225 $ 269,976 Operating and maintenance expenses $ 18,336 $ 10,314 $ 38,851 $ 29,225 General and administrative expenses $ 4,317 $ 774 $ 7,430 $ 4,236 Quarterly Cash Distributions Our common and general partner unitholders and the holders of Incentive Distribution Rights ("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, May and August 2019 , we paid quarterly cash distributions of $26.9 million , $27.4 million and $28.9 million , respectively, of which $19.6 million , $20.0 million and $21.2 million , respectively, were paid to Delek Holdings and our general partner. In February, May and August 2018 , we paid quarterly cash distributions of $22.8 million , $24.0 million and $25.0 million , respectively, of which $16.2 million , $17.2 million and $18.0 million , respectively, were paid to Delek Holdings and our general partner. On October 25, 2019 , our general partner's board of directors declared a quarterly cash distribution totaling $30.4 million , based on the available cash as of the date of determination for the end of the third quarter of 2019 , payable on November 12, 2019 , of which $22.4 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)	9 Months Ended
	Sep. 30, 2019
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 $298.1 million net property, plant, and equipment balance as of September 30, 2019 , $247.6 million is subject to operating leases under our commercial agreements. These agreements do not include options for the lessee to purchase our leasing equipment, nor do they include any material residual value guarantees or material restrictive covenants. The following table represents a disaggregation of revenue for each reportable segment for the periods indicated (in thousands): Three Months Ended September 30, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 5,281 $ 221 $ 5,502 Product Revenue - Third Party — 65,407 65,407 Product Revenue - Affiliate — 6,505 6,505 Lease Revenue - Affiliate (1) (2) 39,304 20,838 60,142 Total Revenue $ 44,585 $ 92,971 $ 137,556 (1) Disaggregated revenue for the three months ended September 30, 2019 may not be comparable to disaggregated revenue for the three months ended September 30, 2018 as a result of our adoption of ASC 842, under which we applied the predominance principle and opted to not separate lease and non-lease components. (2) Net of $1.8 million of amortization expense for the three months ended September 30, 2019 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended September 30, 2018 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,653 $ 64 $ 3,717 Service Revenue - Affiliate 24,536 14,921 39,457 Product Revenue - Third Party — 96,558 96,558 Product Revenue - Affiliate — 9,017 9,017 Lease Revenue - Affiliate (1) 11,596 3,765 15,361 Total Revenue $ 39,785 $ 124,325 $ 164,110 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2018 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 16,733 $ 525 $ 17,258 Product Revenue - Third Party — 236,594 236,594 Product Revenue - Affiliate — 23,078 23,078 Lease Revenue - Affiliate (1) (2) 112,694 55,758 168,452 Total Revenue $ 129,427 $ 315,955 $ 445,382 (1) Disaggregated revenue for the nine months ended September 30, 2019 may not be comparable to disaggregated revenue for the nine months ended September 30, 2018 as a result of our adoption of ASC 842, under which we applied the predominance principle and opted to not separate lease and non-lease components. (2) Net of $5.4 million of amortization expense for the nine months ended September 30, 2019 , respectively, related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2018 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 11,618 $ 866 $ 12,484 Service Revenue - Affiliate 67,593 39,068 106,661 Product Revenue - Third Party — 307,268 307,268 Product Revenue - Affiliate — 30,045 30,045 Lease Revenue - Affiliate (1) 32,031 9,822 41,853 Total Revenue $ 111,242 $ 387,069 $ 498,311 (1) Net of $4.2 million of amortization expense for the nine months ended September 30, 2018 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. As of September 30, 2019 , we expect to recognize $1.1 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 September 30, 2019 were as follows (in thousands): Remainder of 2019 $ 43,663 2020 174,284 2021 174,023 2022 172,872 2023 and thereafter 491,927 Total expected revenue on remaining performance obligations $ 1,056,769

Inventory

Inventory	9 Months Ended
	Sep. 30, 2019
Inventory Disclosure [Abstract]
Inventory	Inventory Inventories consisted of $7.7 million and $5.5 million of refined petroleum products as of September 30, 2019 and December 31, 2018 , 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 nominal amounts during the three and nine months ended September 30, 2018 . We did not recognize any lower of cost or net realizable value charges during the three and nine months ended September 30, 2019 .

Long-Term Obligations

Long-Term Obligations	9 Months Ended
	Sep. 30, 2019
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") 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 Bank, 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 from $700.0 million 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 & Supply, LLC ("Delek Marketing"), a subsidiary of Delek Holdings, continues to provide a limited guaranty of the Partnership's obligations under the DKL Credit Facility. Delek Marketing's guaranty is (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. As of September 30, 2019 the principal amount of the Holdings Note was $102.0 million . The DKL Credit Facility has a maturity date of September 28, 2023 . Borrowings denominated in U.S. dollars bear interest at either a U.S. dollar prime rate , plus an applicable margin, or the 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 September 30, 2019 , the weighted average interest rate for our borrowings under the facility was approximately 4.9% . Additionally, the DKL Credit Facility requires us to pay a leverage ratio dependent quarterly fee on the average unused revolving commitment. As of September 30, 2019 , this fee was 0.50% per year. As of September 30, 2019 , we had $596.3 million of outstanding borrowings under the DKL Credit Facility, with no letters of credit in place. Unused credit commitments under the DKL Credit Facility as of September 30, 2019 , were $253.7 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. In May 2018, the 2025 Notes were exchanged for new notes with terms substantially identical in all material respects with the 2025 Notes except that the new notes do not contain terms with respect to transfer restrictions. As of September 30, 2019 , we had $250.0 million in outstanding principal amount of the 2025 Notes. As of September 30, 2019 , 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 $4.2 million and $1.3 million , respectively, as of September 30, 2019 , and $4.8 million and $1.5 million , respectively, as of December 31, 2018

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2019
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	9 Months Ended
	Sep. 30, 2019
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. 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 September 30, 2019 , the only potentially dilutive units outstanding consist of unvested phantom units. Our distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below represents total cash distributions applicable to the period in which the distributions are earned. The expected date of distribution for the distributions earned during the period ended September 30, 2019 is November 12, 2019 . The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net income attributable to partners $ 30,530 $ 23,326 $ 75,112 $ 68,903 Less: General partner's distribution (including IDRs) (1) 8,892 6,688 24,475 18,598 Less: Limited partners' distribution 21,487 19,272 62,256 56,343 Earnings in excess of (less than) distributions $ 151 $ (2,634 ) $ (11,619 ) $ (6,038 ) General partner's earnings: Distributions (including IDRs) (1) $ 8,892 $ 6,688 $ 24,475 $ 18,598 Earnings in excess of (less than) distributions 3 (52 ) (231 ) (120 ) Total general partner's earnings $ 8,895 $ 6,636 $ 24,244 $ 18,478 Limited partners' earnings on common units: Distributions $ 21,487 $ 19,272 $ 62,256 $ 56,343 Earnings in excess of (less than) distributions 148 (2,582 ) (11,388 ) (5,918 ) Total limited partners' earnings on common units $ 21,635 $ 16,690 $ 50,868 $ 50,425 Weighted average limited partner units outstanding: Common units - basic 24,417,285 24,395,183 24,411,308 24,387,995 Common units - diluted 24,420,582 24,401,908 24,417,466 24,395,880 Net income per limited partner unit: Common units - basic $ 0.89 $ 0.68 $ 2.08 $ 2.07 Common units - diluted (2) $ 0.89 $ 0.68 $ 2.08 $ 2.07 (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 and nine months ended September 30, 2019 and 2018 .

Equity

Equity	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Equity	Equity We had 9,123,239 common limited partner units held by the public outstanding as of September 30, 2019 . Additionally, as of September 30, 2019 , Delek Holdings owned a 61.4% limited partner interest in us, consisting of 15,294,046 common limited partner units and a 94.6% interest in our general partner, which owns the entire 2.0% general partner interest consisting of 498,312 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, 2018 through September 30, 2019 . Common - Public Common - Delek Holdings General Partner Total Balance at December 31, 2018 9,109,807 15,294,046 498,038 24,901,891 General partner units issued to maintain 2% interest — — 274 274 Unit-based compensation awards (1) 13,432 — — 13,432 Balance at September 30, 2019 9,123,239 15,294,046 498,312 24,915,597 (1) No units were withheld for taxes during the three and nine months ended September 30, 2019 . 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 September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net income attributable to partners $ 30,530 $ 23,326 $ 75,112 $ 68,903 Less: General partner's IDRs (8,453 ) (6,295 ) (23,206 ) (17,449 ) Net income available to partners $ 22,077 $ 17,031 $ 51,906 $ 51,454 General partner's ownership interest 2.0 % 2.0 % 2.0 % 2.0 % General partner's allocated interest in net income $ 442 $ 341 1,038 $ 1,029 General partner's IDRs 8,453 6,295 23,206 17,449 Total general partner's interest in net income $ 8,895 $ 6,636 $ 24,244 $ 18,478 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. 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 September 30, 2018 $ 0.790 $ 3.16 $ 25,960 November 9, 2018 November 2, 2018 December 31, 2018 $ 0.810 $ 3.24 $ 26,949 February 12, 2019 February 4, 2019 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 (1) November 4, 2019 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to general and limited partners for the three and nine months ended September 30, 2019 and 2018 are set forth in the table below. Distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below presents total cash distributions applicable to the period in which the distributions are earned (in thousands, except per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 General partner's distributions: General partner's distributions $ 439 $ 393 $ 1,269 $ 1,149 General partner's IDRs 8,453 6,295 23,206 17,449 Total general partner's distributions 8,892 6,688 24,475 18,598 Limited partners' distributions: Common limited partners' distributions 21,487 19,272 62,256 56,343 Total cash distributions $ 30,379 $ 25,960 $ 86,731 $ 74,941 Cash distributions per limited partner unit $ 0.880 $ 0.790 $ 2.550 $ 2.310

Equity Based Compensation

Equity Based Compensation	9 Months Ended
	Sep. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Based Compensation	Equity Based CompensationThe 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.

Equity Method Investments

Equity Method Investments	9 Months Ended
	Sep. 30, 2019
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. Red River owns a 16-inch 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. Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): September 30, 2019 December 31, 2018 Current Assets $ 11,618 $ 6,594 Non-current Assets $ 377,059 $ 375,618 Current liabilities $ 5,168 $ 4,945 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 19,195 $ 14,446 $ 45,212 $ 33,635 Gross profit $ 14,469 $ 9,110 $ 28,935 $ 18,457 Net income $ 14,342 $ 8,709 $ 27,994 $ 17,221 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): September 30, 2019 December 31, 2018 Current assets $ 31,834 $ 15,450 Non-current assets $ 260,427 $ 240,852 Current liabilities $ 8,060 $ 4,362 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 14,602 $ 8,384 $ 33,793 $ 26,260 Gross profit $ 9,965 $ 4,694 $ 20,549 $ 13,173 Net Income $ 9,458 $ 4,055 $ 19,124 $ 11,567 The Partnership's investments in these three entities were financed through a combination of cash from operations and borrowings under the DKL Credit Facility. As of September 30, 2019 and December 31, 2018 , the Partnership's investment balance in these joint ventures was $247.0 million and $104.8 million , respectively. We do not consolidate any part of the assets or liabilities or operating results of our equity method investees. Our share of net income or loss of the investees will increase or decrease, as applicable, the carrying value of our investments in unconsolidated affiliates. With respect to our equity method investments, we determined that these entities do not represent variable interest entities and consolidation is not required. We have the ability to exercise significant influence over each of these joint ventures through our participation in the management committees, which make all significant decisions. However, since all significant decisions require the consent of the other investor(s) without regard to economic interest, we have determined that we have joint control and have applied the equity method of accounting. Our investment in these joint ventures is reflected in our pipelines and transportation segment.

Segment Data

Segment Data	9 Months Ended
	Sep. 30, 2019
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 September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Pipelines and Transportation Net revenues: Affiliate $ 39,304 $ 36,132 $ 112,694 $ 99,624 Third party 5,281 3,653 16,733 11,618 Total pipelines and transportation 44,585 39,785 129,427 111,242 Cost of materials and other 4,947 5,055 17,871 14,691 Operating expenses (excluding depreciation and amortization) 12,547 9,499 36,109 29,054 Segment contribution margin $ 27,091 $ 25,231 $ 75,447 $ 67,497 Capital spending (1) $ 3,103 $ 2,086 $ 4,345 $ 4,320 Wholesale Marketing and Terminalling Net revenues: Affiliate (2) $ 27,343 $ 27,703 $ 78,836 $ 78,935 Third party 65,628 96,622 237,119 308,134 Total wholesale marketing and terminalling 92,971 124,325 315,955 387,069 Cost of materials and other 67,647 100,541 244,842 315,953 Operating expenses (excluding depreciation and amortization) 5,888 5,896 15,711 13,835 Segment contribution margin $ 19,436 $ 17,888 $ 55,402 $ 57,281 Capital spending (1) $ 889 $ 905 $ 1,893 $ 3,120 Consolidated Net revenues: Affiliate $ 66,647 $ 63,835 $ 191,530 $ 178,559 Third party 70,909 100,275 253,852 319,752 Total Consolidated 137,556 164,110 445,382 498,311 Cost of materials and other 72,594 105,596 262,713 330,644 Operating expenses (excluding depreciation and amortization presented below) 18,435 15,395 51,820 42,889 Contribution margin $ 46,527 $ 43,119 $ 130,849 $ 124,778 General and administrative expenses 5,280 3,076 15,046 9,798 Depreciation and amortization 6,588 6,702 19,801 19,721 (Gain) loss on asset disposals (70 ) 717 (95 ) 648 Operating income $ 34,729 $ 32,624 $ 96,097 $ 94,611 Capital spending (1) $ 3,992 $ 2,991 $ 6,238 $ 7,440 (1) Capital spending excludes transaction costs capitalized in the amount of $0.4 million that relate to the Big Spring Logistic Assets Acquisition for the nine months ended September 30, 2018 . (2) 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 September 30, 2019 and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Pipelines and transportation $ 529,219 $ 387,333 Wholesale marketing and terminalling 238,588 237,260 Total assets $ 767,807 $ 624,593 Property, plant and equipment and accumulated depreciation as of September 30, 2019 and depreciation expense by reporting segment for the three and nine months ended September 30, 2019 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 361,478 $ 96,238 $ 457,716 Less: accumulated depreciation (122,397 ) (37,226 ) (159,623 ) Property, plant and equipment, net $ 239,081 $ 59,012 $ 298,093 Depreciation expense for the three months ended September 30, 2019 $ 5,240 $ 1,348 $ 6,588 Depreciation expense for the nine months ended September 30, 2019 $ 15,784 $ 4,017 $ 19,801 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 September 30, 2019

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2019
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, including five releases that occurred in 2019 and six releases that occurred in 2018. 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 have been substantially completed or have received regulatory closure. Boom maintenance and confirmatory sampling is currently underway at some sites. We expect regulatory closure by the end of 2019 for some release sites that have not yet received it, with closure on a few remaining sites occurring in 2020. Many of the releases have occurred on our SALA Gathering System. During the nine months ended September 30, 2019 , we decommissioned certain sections of the SALA 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 operational capabilities of the system. Regulatory authorities could require additional remediation based on the results of our remediation efforts. We may incur additional expenses as a result of further scrutiny by regulatory authorities and continued compliance with laws and regulations to which our assets are subject. As of September 30, 2019 , we have accrued $0.4 million for remediation and other such matters related to these releases, which excludes amounts payable discussed below for the release of crude oil from a pumping facility at our Magnolia Station near the El Dorado Refinery (the "Magnolia Release"). 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 are expected to be completed by the end of the year. We currently estimate the maintenance and remediation efforts to cost between $4.0 million and $6.0 million , excluding any fines or penalties assessed by regulatory agencies. We anticipate that we will incur fines or penalties but we cannot currently estimate those costs. No accrual is recorded for the Sulphur Springs Release as of September 30, 2019 , as the release occurred subsequent to that date. We are evaluating whether there may be potential recoveries or indemnification of the costs incurred for the Sulphur Springs Release. 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 and the majority are subsequently reimbursed by Delek Holdings pursuant to the terms of 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 as we are generally reimbursed by Delek Holdings for such costs. During the three and nine months ended September 30, 2019 , we recorded a no minal amount and $0.3 million of expenses, respectively, and $0.2 million and $0.3 million of expenses during the three and nine months ended September 30, 2018 , which is net of total reimbursable costs from Delek Holdings pursuant to the terms of the Omnibus Agreement. Reimbursable costs amounted to $0.5 million and $4.6 million for the three and nine months ended September 30, 2019 , respectively, and $1.0 million and $8.0 million for the three and nine months ended September 30, 2018 , respectively, to cover the costs of asset failures. The United States Department of Justice (the "DOJ"), on behalf of the EPA, and the state of Arkansas, on behalf of the Arkansas Department of Environmental Quality, have been pursuing an enforcement action against the Partnership with regard to potential violations of the Clean Water Act and certain state laws arising from the Magnolia Release since June 2015. On July 13, 2018, the DOJ and the State of Arkansas filed a civil action against two of the Partnership's wholly-owned subsidiaries, Delek Logistics Operating, LLC and SALA Gathering Systems LLC, in the United States District Court for the Western District of Arkansas. In December 2018, the Partnership, the United States and the state of Arkansas reached an agreement to settle the claims related to the Magnolia Release for $2.2 million and the claims against the Partnership were resolved and an additional demand for a compliance audit at the Magnolia terminal was abandoned in exchange for payment of monetary penalties and other relief. In July 2019, we signed and submitted to the DOJ, a consent decree (the "Magnolia Consent Decree") to settle the release, and on August 30, 2019, the Magnolia Consent Decree was lodged with the Court. We expect the Magnolia Consent Decree to be finalized and to settle the payable in the fourth quarter of 2019. As of September 30, 2019 , $2.2 million is recorded in accounts payable in our condensed consolidated balance sheet for the Magnolia Release. Letters of Credit As of September 30, 2019 , we had no

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	Leases We lease certain pipeline and transportation equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. Our leases do not have any outstanding renewal options. Certain leases also include options to purchase the leased equipment. Certain of our lease agreements include rates based on equipment usage and others include rate inflationary indices based increases. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The following table presents additional information related to our operating leases in accordance ASC 842: Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2019 2019 Lease Cost Operating lease cost $ 1,744 $ 4,643 Short-term lease cost (1) 47 850 Total lease cost $ 1,791 $ 5,493 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (1,744 ) $ (4,643 ) Leased assets obtained in exchange for new operating lease liabilities $ 649 $ 649 September 30, 2019 Weighted-average remaining lease term (years) for operating leases 3.58 Weighted-average discount rate (2) operating leases 7.8 % (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. The following is an estimate of the maturity of our lease liabilities for operating leases having remaining noncancelable terms in excess of one year as of September 30, 2019 (in thousands) under ASC 842: October 1 to December 31, 2019 $ 1,533 2020 6,055 2021 5,755 2022 5,047 2023 2,459 Thereafter — Total lease payments 20,849 Less: Interest 2,551 Present value of lease liabilities $ 18,298 The following is an estimate of our future minimum lease payments for operating leases having remaining noncancelable terms in excess of one year as of December 31, 2018 (in thousands) under ASC 840, Leases : 2019 $ 5,755 2020 5,659 2021 5,337 2022 5,031 2023 2,429 Thereafter 8 Total future minimum lease payments $ 24,219

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Distribution Declaration On October 25, 2019 , our general partner's board of directors declared a quarterly cash distribution of $0.880 per unit, payable on November 12, 2019 , to unitholders of record on November 4, 2019 . Sulphur Springs Release On October 3, 2019, a release of diesel fuel occurred on one of our pipelines near Sulphur Springs, Texas. Cleanup operations and site maintenance and remediation efforts are expected to be completed by the end of the year. See Note 13

Organization and Basis of Pre_2

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2019
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 ("U.S. 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, 2018 (our "Annual Report on Form 10-K"), filed with the Securities and Exchange Commission (the "SEC") on March 1, 2019 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, 2018
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 2019 ASU 2016-02, Leases In February 2016, the Financial Accounting Standards Board (the "FASB") issued guidance that requires the recognition of a lease liability and a right-of-use asset, initially measured at the present value of the lease payments, in the statement of financial condition for all leases with terms longer than one year. The guidance was subsequently amended to consider the impact of practical expedients and provide additional clarifications. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We adopted the new lease standard on January 1, 2019. We elected the package of practical expedients which, among other things, allows us to carry forward the historical lease classification. For certain lease classes, we have elected the practical expedient not to separate lease and non-lease components, which allows us to combine the components if certain criteria are met. Further, we elected the optional transition method, which allows us to recognize a cumulative-effect adjustment to the opening balance sheet of retained earnings at the date of adoption and to not recast our comparative periods. We have not elected the hindsight practical expedients, which would have allowed us to use hindsight in determining the reasonably certain lease term. The adoption of the lease accounting guidance had no impact on January 1, 2019 partners' equity and resulted in the recognition of a $20.2 million lease liability and a corresponding right-of-use asset on our consolidated balance sheet. The adoption did not have a material impact on our consolidated statement of income. See Note 14 for further information. Accounting Pronouncements Not Yet Adopted ASU 2018-13, Fair Value Measurement - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, 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, with early adoption permitted. We expect to adopt this guidance on the effective date and do not expect adopting this new guidance will 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. We are currently evaluating the impact that adopting this new guidance will
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.
Segment Data	Our operating segments adhere to the accounting policies used for our consolidated financial statements. Our operating segments are managed separately because each segment requires different industry knowledge, technology and marketing strategies. Decisions concerning the allocation of resources and assessment of operating performance are made based on this segmentation. Management measures the operating performance of each of its reportable segments based on segment contribution margin. Segment contribution margin is defined as net revenues less cost of materials and other and operating expenses, excluding depreciation and amortization.
Property, Plant and Equipment, Impairment	In accordance with ASC 360, Property, Plant & Equipment

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2019
Related Party Transactions [Abstract]
Summary of Related Party Transactions	A summary of revenue, purchases from affiliates and expense transactions with Delek Holdings and its affiliates are as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 66,647 $ 63,835 $ 191,530 $ 178,559 Purchases from Affiliates $ 66,578 $ 86,944 $ 219,225 $ 269,976 Operating and maintenance expenses $ 18,336 $ 10,314 $ 38,851 $ 29,225 General and administrative expenses $ 4,317 $ 774 $ 7,430 $ 4,236

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table represents a disaggregation of revenue for each reportable segment for the periods indicated (in thousands): Three Months Ended September 30, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 5,281 $ 221 $ 5,502 Product Revenue - Third Party — 65,407 65,407 Product Revenue - Affiliate — 6,505 6,505 Lease Revenue - Affiliate (1) (2) 39,304 20,838 60,142 Total Revenue $ 44,585 $ 92,971 $ 137,556 (1) Disaggregated revenue for the three months ended September 30, 2019 may not be comparable to disaggregated revenue for the three months ended September 30, 2018 as a result of our adoption of ASC 842, under which we applied the predominance principle and opted to not separate lease and non-lease components. (2) Net of $1.8 million of amortization expense for the three months ended September 30, 2019 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Three Months Ended September 30, 2018 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 3,653 $ 64 $ 3,717 Service Revenue - Affiliate 24,536 14,921 39,457 Product Revenue - Third Party — 96,558 96,558 Product Revenue - Affiliate — 9,017 9,017 Lease Revenue - Affiliate (1) 11,596 3,765 15,361 Total Revenue $ 39,785 $ 124,325 $ 164,110 (1) Net of $1.8 million of amortization expense for the three months ended September 30, 2018 , related to a customer contract intangible asset recorded in the wholesale marketing and terminalling segment. Nine Months Ended September 30, 2019 Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Service Revenue - Third Party $ 16,733 $ 525 $ 17,258 Product Revenue - Third Party — 236,594 236,594 Product Revenue - Affiliate — 23,078 23,078 Lease Revenue - Affiliate (1) (2) 112,694 55,758 168,452 Total Revenue $ 129,427 $ 315,955 $ 445,382 (1) Disaggregated revenue for the nine months ended September 30, 2019 may not be comparable to disaggregated revenue for the nine months ended September 30, 2018 as a result of our adoption of ASC 842, under which we applied the predominance principle and opted to not separate lease and non-lease components. (2) Net of $5.4 million of amortization expense for the nine months ended September 30, 2019 , respectively, 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 September 30, 2019 , we expect to recognize $1.1 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 September 30, 2019 were as follows (in thousands): Remainder of 2019 $ 43,663 2020 174,284 2021 174,023 2022 172,872 2023 and thereafter 491,927 Total expected revenue on remaining performance obligations $ 1,056,769

Net Income Per Unit (Tables)

Net Income Per Unit (Tables)	9 Months Ended
	Sep. 30, 2019
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 September 30, 2019 is November 12, 2019 . The calculation of net income per unit is as follows (dollars in thousands, except units and per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net income attributable to partners $ 30,530 $ 23,326 $ 75,112 $ 68,903 Less: General partner's distribution (including IDRs) (1) 8,892 6,688 24,475 18,598 Less: Limited partners' distribution 21,487 19,272 62,256 56,343 Earnings in excess of (less than) distributions $ 151 $ (2,634 ) $ (11,619 ) $ (6,038 ) General partner's earnings: Distributions (including IDRs) (1) $ 8,892 $ 6,688 $ 24,475 $ 18,598 Earnings in excess of (less than) distributions 3 (52 ) (231 ) (120 ) Total general partner's earnings $ 8,895 $ 6,636 $ 24,244 $ 18,478 Limited partners' earnings on common units: Distributions $ 21,487 $ 19,272 $ 62,256 $ 56,343 Earnings in excess of (less than) distributions 148 (2,582 ) (11,388 ) (5,918 ) Total limited partners' earnings on common units $ 21,635 $ 16,690 $ 50,868 $ 50,425 Weighted average limited partner units outstanding: Common units - basic 24,417,285 24,395,183 24,411,308 24,387,995 Common units - diluted 24,420,582 24,401,908 24,417,466 24,395,880 Net income per limited partner unit: Common units - basic $ 0.89 $ 0.68 $ 2.08 $ 2.07 Common units - diluted (2) $ 0.89 $ 0.68 $ 2.08 $ 2.07 (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 and nine months ended September 30, 2019 and 2018 .

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2019
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, 2018 through September 30, 2019 . Common - Public Common - Delek Holdings General Partner Total Balance at December 31, 2018 9,109,807 15,294,046 498,038 24,901,891 General partner units issued to maintain 2% interest — — 274 274 Unit-based compensation awards (1) 13,432 — — 13,432 Balance at September 30, 2019 9,123,239 15,294,046 498,312 24,915,597 (1) No units were withheld for taxes during the three and nine months ended September 30, 2019 .
Summary of Allocation of General Partner's Interest in Net Income	The following table presents the allocation of the general partner's interest in net income (in thousands, except percentage of ownership interest): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net income attributable to partners $ 30,530 $ 23,326 $ 75,112 $ 68,903 Less: General partner's IDRs (8,453 ) (6,295 ) (23,206 ) (17,449 ) Net income available to partners $ 22,077 $ 17,031 $ 51,906 $ 51,454 General partner's ownership interest 2.0 % 2.0 % 2.0 % 2.0 % General partner's allocated interest in net income $ 442 $ 341 1,038 $ 1,029 General partner's IDRs 8,453 6,295 23,206 17,449 Total general partner's interest in net income $ 8,895 $ 6,636 $ 24,244 $ 18,478
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 September 30, 2018 $ 0.790 $ 3.16 $ 25,960 November 9, 2018 November 2, 2018 December 31, 2018 $ 0.810 $ 3.24 $ 26,949 February 12, 2019 February 4, 2019 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 (1) November 4, 2019 (1) Expected date of distribution. The allocations of total quarterly cash distributions made to general and limited partners for the three and nine months ended September 30, 2019 and 2018 are set forth in the table below. Distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below presents total cash distributions applicable to the period in which the distributions are earned (in thousands, except per unit amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 General partner's distributions: General partner's distributions $ 439 $ 393 $ 1,269 $ 1,149 General partner's IDRs 8,453 6,295 23,206 17,449 Total general partner's distributions 8,892 6,688 24,475 18,598 Limited partners' distributions: Common limited partners' distributions 21,487 19,272 62,256 56,343 Total cash distributions $ 30,379 $ 25,960 $ 86,731 $ 74,941 Cash distributions per limited partner unit $ 0.880 $ 0.790 $ 2.550 $ 2.310

Equity Method Investments (Tabl

Equity Method Investments (Tables)	9 Months Ended
	Sep. 30, 2019
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): September 30, 2019 December 31, 2018 Current assets $ 31,834 $ 15,450 Non-current assets $ 260,427 $ 240,852 Current liabilities $ 8,060 $ 4,362 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 14,602 $ 8,384 $ 33,793 $ 26,260 Gross profit $ 9,965 $ 4,694 $ 20,549 $ 13,173 Net Income $ 9,458 $ 4,055 $ 19,124 $ 11,567 Summarized unaudited financial information for Red River on a 100% basis is shown below (in thousands): September 30, 2019 December 31, 2018 Current Assets $ 11,618 $ 6,594 Non-current Assets $ 377,059 $ 375,618 Current liabilities $ 5,168 $ 4,945 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenues $ 19,195 $ 14,446 $ 45,212 $ 33,635 Gross profit $ 14,469 $ 9,110 $ 28,935 $ 18,457 Net income $ 14,342 $ 8,709 $ 27,994 $ 17,221

Segment Data (Tables)

Segment Data (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Summary Segment Data	The following is a summary of business segment operating performance as measured by contribution margin for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Pipelines and Transportation Net revenues: Affiliate $ 39,304 $ 36,132 $ 112,694 $ 99,624 Third party 5,281 3,653 16,733 11,618 Total pipelines and transportation 44,585 39,785 129,427 111,242 Cost of materials and other 4,947 5,055 17,871 14,691 Operating expenses (excluding depreciation and amortization) 12,547 9,499 36,109 29,054 Segment contribution margin $ 27,091 $ 25,231 $ 75,447 $ 67,497 Capital spending (1) $ 3,103 $ 2,086 $ 4,345 $ 4,320 Wholesale Marketing and Terminalling Net revenues: Affiliate (2) $ 27,343 $ 27,703 $ 78,836 $ 78,935 Third party 65,628 96,622 237,119 308,134 Total wholesale marketing and terminalling 92,971 124,325 315,955 387,069 Cost of materials and other 67,647 100,541 244,842 315,953 Operating expenses (excluding depreciation and amortization) 5,888 5,896 15,711 13,835 Segment contribution margin $ 19,436 $ 17,888 $ 55,402 $ 57,281 Capital spending (1) $ 889 $ 905 $ 1,893 $ 3,120 Consolidated Net revenues: Affiliate $ 66,647 $ 63,835 $ 191,530 $ 178,559 Third party 70,909 100,275 253,852 319,752 Total Consolidated 137,556 164,110 445,382 498,311 Cost of materials and other 72,594 105,596 262,713 330,644 Operating expenses (excluding depreciation and amortization presented below) 18,435 15,395 51,820 42,889 Contribution margin $ 46,527 $ 43,119 $ 130,849 $ 124,778 General and administrative expenses 5,280 3,076 15,046 9,798 Depreciation and amortization 6,588 6,702 19,801 19,721 (Gain) loss on asset disposals (70 ) 717 (95 ) 648 Operating income $ 34,729 $ 32,624 $ 96,097 $ 94,611 Capital spending (1) $ 3,992 $ 2,991 $ 6,238 $ 7,440 (1) Capital spending excludes transaction costs capitalized in the amount of $0.4 million that relate to the Big Spring Logistic Assets Acquisition for the nine months ended September 30, 2018 . (2) 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 September 30, 2019 and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Pipelines and transportation $ 529,219 $ 387,333 Wholesale marketing and terminalling 238,588 237,260 Total assets $ 767,807 $ 624,593 Property, plant and equipment and accumulated depreciation as of September 30, 2019 and depreciation expense by reporting segment for the three and nine months ended September 30, 2019 were as follows (in thousands): Pipelines and Transportation Wholesale Marketing and Terminalling Consolidated Property, plant and equipment $ 361,478 $ 96,238 $ 457,716 Less: accumulated depreciation (122,397 ) (37,226 ) (159,623 ) Property, plant and equipment, net $ 239,081 $ 59,012 $ 298,093 Depreciation expense for the three months ended September 30, 2019 $ 5,240 $ 1,348 $ 6,588 Depreciation expense for the nine months ended September 30, 2019 $ 15,784 $ 4,017 $ 19,801

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Lease, Cost	Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2019 2019 Lease Cost Operating lease cost $ 1,744 $ 4,643 Short-term lease cost (1) 47 850 Total lease cost $ 1,791 $ 5,493 Other Information Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ (1,744 ) $ (4,643 ) Leased assets obtained in exchange for new operating lease liabilities $ 649 $ 649 September 30, 2019 Weighted-average remaining lease term (years) for operating leases 3.58 Weighted-average discount rate (2) operating leases 7.8 % (1) Includes an immaterial amount of variable lease cost. (2)
Lessee, Operating Lease, Liability, Maturity	The following is an estimate of the maturity of our lease liabilities for operating leases having remaining noncancelable terms in excess of one year as of September 30, 2019 (in thousands) under ASC 842: October 1 to December 31, 2019 $ 1,533 2020 6,055 2021 5,755 2022 5,047 2023 2,459 Thereafter — Total lease payments 20,849 Less: Interest 2,551 Present value of lease liabilities $ 18,298 The following is an estimate of our future minimum lease payments for operating leases having remaining noncancelable terms in excess of one year as of December 31, 2018 (in thousands) under ASC 840, Leases : 2019 $ 5,755 2020 5,659 2021 5,337 2022 5,031 2023 2,429 Thereafter 8 Total future minimum lease payments $ 24,219
Schedule of Future Minimum Rental Payments for Operating Leases	The following is an estimate of our future minimum lease payments for operating leases having remaining noncancelable terms in excess of one year as of December 31, 2018 (in thousands) under ASC 840, Leases : 2019 $ 5,755 2020 5,659 2021 5,337 2022 5,031 2023 2,429 Thereafter 8 Total future minimum lease payments $ 24,219

Organization and Basis of Pre_3

Organization and Basis of Presentation Organization and Basis of Presentation (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Operating lease liability	$ 18,298	$ 20,200

Acquisitions - Narrative (Deta

Acquisitions - Narrative (Details) $ in Thousands	Mar. 01, 2018USD ($)storage_tankunderground_saltwell	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Distributions to Delek Holdings for Big Spring Asset Acquisition		$ 98,798
Marketing Contract Intangible, net			$ 132,802	$ 138,210
Total			$ 767,807	$ 624,593
Big Spring Logistic Assets
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Consideration transferred	$ 170,800
Number of storage tanks | storage_tank	75
Number of underground saltwells | underground_saltwell	4
Distributions to Delek Holdings for Big Spring Asset Acquisition		(98,800)
Assets	$ 72,000
Asset retirement obligations	800
Business Acquisition, Transaction Costs		$ 400
Marketing Contract Intangible, net	$ 144,200

Related Party Transactions - Co

Related Party Transactions - Commercial Agreements (Details)	9 Months Ended
	Sep. 30, 2019
Minimum
Related Party Transaction [Line Items]
Term of agreement	5 years
Maximum
Related Party Transaction [Line Items]
Term of agreement	10 years

Related Party Transactions - O

Related Party Transactions - Omnibus Agreement (Details) - USD ($) $ in Thousands	Mar. 01, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Delek Holdings				$ 2,282	$ 3,183
Delek US and affiliates | Operating and maintenance expense
Related Party Transaction [Line Items]
Expenses		$ 18,336	$ 10,314	38,851	29,225
Omnibus Agreement | Delek US and affiliates
Related Party Transaction [Line Items]
Related Party Annual Service Fee	$ 3,900
Omnibus Agreement | Delek US | Delek US and affiliates
Related Party Transaction [Line Items]
Receivable from related party		300		300
Reimbursement for costs incurred for asset failures		500	1,000	4,600	8,000
Omnibus Agreement | Delek US | Delek US and affiliates | Operating and maintenance expense
Related Party Transaction [Line Items]
Reimbursement for costs incurred for asset failures		300	1,400	6,000	7,800
Omnibus Agreement | Delek US | Delek US and affiliates | Other long term liabilities
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Delek Holdings		800	$ 500	2,300	$ 3,200
DPG Management Agreement, Operating Service And Construction Fee Paid To Partnership | Delek US and affiliates
Related Party Transaction [Line Items]
Expenses		$ 800		$ 3,600

Related Party Transactions - S

Related Party Transactions - Summary of Transactions (Details) - Delek US and affiliates - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transaction [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 66,647	$ 63,835	$ 191,530	$ 178,559
General and administrative expenses	4,317	774	7,430	4,236
Cost of goods sold
Related Party Transaction [Line Items]
Expenses	66,578	86,944	219,225	269,976
Operating and maintenance expense
Related Party Transaction [Line Items]
Expenses	$ 18,336	$ 10,314	$ 38,851	$ 29,225

Related Party Transactions - Q

Related Party Transactions - Quarterly Cash Distributions (Details) - USD ($) $ in Thousands	Oct. 25, 2019	Aug. 13, 2019	May 14, 2019	Feb. 12, 2019	Nov. 09, 2018	Aug. 13, 2018	May 15, 2018	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Aug. 31, 2018	Feb. 28, 2018
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 28,914	$ 27,438	$ 26,949	$ 25,960	$ 25,000	$ 24,000		$ 27,400	$ 26,900		$ 22,800
Distribution Made to Limited Partner, Cash Distributions Declared								$ 28,900
Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared	$ 30,400
Delek US and affiliates
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid							$ 17,200		$ 20,000	$ 19,600	$ 18,000	$ 16,200
Distribution Made to Limited Partner, Cash Distributions Declared								$ 21,200
Delek US and affiliates | Subsequent Event
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared	$ 22,400

Revenues (Details)

Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 298,093		$ 298,093		$ 312,562
Total revenue	137,556	$ 164,110	445,382	$ 498,311
Amortization of customer contract intangible assets	1,800	1,800	5,408	4,207
Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	5,502	3,717	17,258	12,484
Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue		39,457		106,661
Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	65,407	96,558	236,594	307,268
Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	6,505	9,017	23,078	30,045
Lease Revenue - Affiliate (1) (2)
Disaggregation of Revenue [Line Items]
Total revenue	60,142	15,361	168,452	41,853
Pipelines and transportation
Disaggregation of Revenue [Line Items]
Property, plant and equipment	239,081		239,081
Total revenue	44,585	39,785	129,427	111,242
Pipelines and transportation | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	5,281	3,653	16,733	11,618
Pipelines and transportation | Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue		24,536		67,593
Pipelines and transportation | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Pipelines and transportation | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Pipelines and transportation | Lease Revenue - Affiliate (1) (2)
Disaggregation of Revenue [Line Items]
Total revenue	39,304	11,596	112,694	32,031
Wholesale marketing and terminalling
Disaggregation of Revenue [Line Items]
Property, plant and equipment	59,012		59,012
Total revenue	92,971	124,325	315,955	387,069
Wholesale marketing and terminalling | Service Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	221	64	525	866
Wholesale marketing and terminalling | Service Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue		14,921		39,068
Wholesale marketing and terminalling | Product Revenue - Third Party
Disaggregation of Revenue [Line Items]
Total revenue	65,407	96,558	236,594	307,268
Wholesale marketing and terminalling | Product Revenue - Affiliate
Disaggregation of Revenue [Line Items]
Total revenue	6,505	9,017	23,078	30,045
Wholesale marketing and terminalling | Lease Revenue - Affiliate (1) (2)
Disaggregation of Revenue [Line Items]
Total revenue	20,838	$ 3,765	55,758	$ 9,822
Assets Held Under Finance Leases
Disaggregation of Revenue [Line Items]
Property, plant and equipment	$ 247,600		$ 247,600

Revenues - Remaining Performanc

Revenues - Remaining Performance Obligation Expected Timing of Satisfaction - Period (Details) $ in Thousands	Sep. 30, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 43,663
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	174,284
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	174,023
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	172,872
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	491,927
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 1,056,769

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Inventory [Line Items]
Inventories	$ 7,695	$ 5,491

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	Sep. 30, 2019	Sep. 28, 2018	Sep. 27, 2018
Line of Credit Facility [Line Items]
Weighted average interest rate (as percent)		4.90%
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
Maximum amount under accordion feature			$ 1,000,000,000
Second Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Maximum lender commitment				$ 700,000,000
Commitment fee (as percent)		0.50%
Principal amount of Holdings Note		$ 102,000,000
Outstanding borrowings		596,300,000
Letters of credit outstanding		0
Unused credit commitment		$ 253,700,000

Long-Term Obligations - 6.75%

Long-Term Obligations - 6.75% Senior Notes Due 2025 (Details) - Senior Notes - Senior 2025 Notes - USD ($) $ in Millions	May 23, 2017	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Face amount of debt	$ 250
Interest rate (as percent)	6.75%
Purchase price (as percent)		101.00%
Long-term Line of Credit		$ 250
Debt Instrument, Interest Rate, Effective Percentage		7.20%
Deferred financing costs		$ 4.2	$ 4.8
Debt discount		$ 1.3	$ 1.5
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)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
General partner's ownership interest (as percent)	2.00%	2.00%	2.00%	2.00%

Net Income Per Unit (Details)

Net Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net Income Per Unit [Line Items]
Net income attributable to partners	$ 30,530	$ 23,326	$ 75,112	$ 68,903
Less: Partners' distribution	21,487	19,272	62,256	56,343
Earnings in excess of (less than) distributions	$ 151	$ (2,634)	$ (11,619)	$ (6,038)
Footnote [Abstract]
General partner's ownership interest (as percent)	2.00%	2.00%	2.00%	2.00%
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest, Excess Per Unit Of Cash Distribution			$ 0.43125
Common Units
Net Income Per Unit [Line Items]
Common units - (basic) (in shares)	24,417,285	24,395,183	24,411,308	24,387,995
Common units - (diluted) (in shares)	24,420,582	24,401,908	24,417,466	24,395,880
Common units - (basic) (in dollars per share)	$ 0.89	$ 0.68	$ 2.08	$ 2.07
Common units - (diluted) (in dollars per share)	$ 0.89	$ 0.68	$ 2.08	$ 2.07
General Partner
Net Income Per Unit [Line Items]
Net income attributable to partners	$ 8,895	$ 6,636	$ 24,244	$ 18,478
Less: General partner's distribution (including IDRs)	8,892	6,688	24,475	18,598
Earnings in excess of (less than) distributions	3	(52)	(231)	(120)
Total partner's earnings	8,895	6,636	24,244	18,478
Common unitholders | Common Units
Net Income Per Unit [Line Items]
Less: Partners' distribution	21,487	19,272	62,256	56,343
Earnings in excess of (less than) distributions	148	(2,582)	(11,388)	(5,918)
Total partner's earnings	$ 21,635	$ 16,690	$ 50,868	$ 50,425
Common units - (basic) (in shares)	24,417,285	24,395,183	24,411,308	24,387,995
Common units - (diluted) (in shares)	24,420,582	24,401,908	24,417,466	24,395,880
Common units - (basic) (in dollars per share)	$ 0.89	$ 0.68	$ 2.08	$ 2.07
Common units - (diluted) (in dollars per share)	$ 0.89	$ 0.68	$ 2.08	$ 2.07

Equity - Narrative (Details)

Equity - Narrative (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Class of Stock [Line Items]
General partner's ownership interest (as percent)	2.00%	2.00%	2.00%	2.00%
Delek US
Class of Stock [Line Items]
Ownership Interest in General Partner (as percent)	94.60%		94.60%
Affiliates
Class of Stock [Line Items]
Ownership Interest in General Partner (as percent)	5.40%		5.40%
Limited Partner | Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)	9,123,239		9,123,239		9,109,807
Limited Partner | Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)	15,294,046		15,294,046		15,294,046
General Partner
Class of Stock [Line Items]
General partner units outstanding (units)	498,312		498,312		498,038
Delek US Holdings, Inc.
Class of Stock [Line Items]
Delek's limited partner ownership interest (as percent)			61.40%

Equity - Equity Activity (Deta

Equity - Equity Activity (Details) - shares	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
General Partners' Capital Account, Units Issued	498,312	498,038
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at December 31, 2018	24,901,891
General partner units issued to maintain 2% interest	274
Unit-based compensation awards	13,432
Balance at March 31, 2019	24,915,597
Partners' Capital Account, Units Withheld for Taxes	0
Limited Partner | Common unitholders - public
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at December 31, 2018	9,109,807
General partner units issued to maintain 2% interest	0
Unit-based compensation awards	13,432
Balance at March 31, 2019	9,123,239
Limited Partner | Common unitholders - Delek
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at December 31, 2018	15,294,046
General partner units issued to maintain 2% interest	0
Unit-based compensation awards	0
Balance at March 31, 2019	15,294,046
General Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at December 31, 2018	498,038
General partner units issued to maintain 2% interest	274
Unit-based compensation awards	0
Balance at March 31, 2019	498,312

Equity - Allocations of Net In

Equity - Allocations of Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity [Abstract]
Net income attributable to partners	$ 30,530	$ 23,326	$ 75,112	$ 68,903
Less: General partner's IDRs	(8,453)	(6,295)	(23,206)	(17,449)
Net income available to partners	$ 22,077	$ 17,031	$ 51,906	$ 51,454
General partner's ownership interest (as percent)	2.00%	2.00%	2.00%	2.00%
General partner's allocated interest in net income	$ 442	$ 341	$ 1,038	$ 1,029
General partner's IDRs	8,453	6,295	23,206	17,449
Total general partner's interest in net income	$ 8,895	$ 6,636	$ 24,244	$ 18,478

Equity - Incentive Distributio

Equity - Incentive Distribution Rights (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity [Abstract]
General partner's ownership interest (as percent)	2.00%	2.00%	2.00%	2.00%
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, Excess Per Unit Of Cash Distribution			$ 0.43125
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest, Increasing Percentage, Maximum			48.00%

Equity - Cash Distributions (D

Equity - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 12, 2019	Aug. 13, 2019	May 14, 2019	Feb. 12, 2019	Nov. 09, 2018	Aug. 13, 2018	May 15, 2018	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Feb. 28, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Paid (in dollars per share)		$ 0.850	$ 0.820	$ 0.810	$ 0.790
Total Quarterly Distribution Per Limited Partner Unit, Annualized - Paid (in dollars per share)		$ 3.40	$ 3.28	$ 3.24	$ 3.16
Total Cash Distribution, including general partner interest and IDRs		$ 28,914	$ 27,438	$ 26,949	$ 25,960	$ 25,000	$ 24,000		$ 27,400	$ 26,900	$ 22,800
Total Quarterly Distribution Per Limited Partner Unit - Declared (in dollars per share)												$ 0.880	$ 0.790	$ 2.550	$ 2.310
Distribution Made to Limited Partner, Cash Distributions Declared								$ 28,900
Scenario, Forecast
Distribution Made to Limited Partner [Line Items]
Total Quarterly Distribution Per Limited Partner Unit - Declared (in dollars per share)	$ 0.880
Distribution Made To Limited Partner Distributions Declared Annualized Per Unit	$ 3.52
Distribution Made to Limited Partner, Cash Distributions Declared	$ 30,379

Equity - Distributions Earned

Equity - Distributions Earned (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity [Abstract]
General partner's distributions	$ 439	$ 393	$ 1,269	$ 1,149
General partner's IDRs	8,453	6,295	23,206	17,449
Total general partner's distributions	8,892	6,688	24,475	18,598
Common limited partners' distributions	21,487	19,272	62,256	56,343
Total cash distributions	$ 30,379	$ 25,960	$ 86,731	$ 74,941
Cash distributions per limited partner unit (in dollars per share)	$ 0.880	$ 0.790	$ 2.550	$ 2.310

Equity Method Investments (Det

Equity Method Investments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)joint_venture	May 31, 2019USD ($)	Dec. 31, 2018USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investments, number of joint ventures | joint_venture	3
Investment in joint ventures	$ 246,998		$ 104,770
Red River
Schedule of Equity Method Investments [Line Items]
Ownership interest (as percent)		33.00%
Investment in joint ventures		$ 124,700
Red River Expansion Project
Schedule of Equity Method Investments [Line Items]
Investment in joint ventures		$ 3,500
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%

Equity Method Investments - Sum

Equity Method Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Red River
Schedule of Equity Method Investments [Line Items]
Current Assets	$ 11,618		$ 11,618		$ 6,594
Non-current Assets	377,059		377,059		375,618
Current liabilities	5,168		5,168		4,945
Revenues	19,195	$ 14,446	45,212	$ 33,635
Gross profit	14,469	9,110	28,935	18,457
Net income	14,342	8,709	27,994	17,221
Andeavor Logistics
Schedule of Equity Method Investments [Line Items]
Current Assets	31,834		31,834		15,450
Non-current Assets	260,427		260,427		240,852
Current liabilities	8,060		8,060		$ 4,362
Revenues	14,602	8,384	33,793	26,260
Gross profit	9,965	4,694	20,549	13,173
Net income	$ 9,458	$ 4,055	$ 19,124	$ 11,567

Segment Data - Narrative (Detai

Segment Data - Narrative (Details)	9 Months Ended
	Sep. 30, 2019segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segment Data (Details)

Segment Data (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Affiliates (1)	[1]	$ 66,647	$ 63,835	$ 191,530	$ 178,559
Third party		70,909	100,275	253,852	319,752
Net revenues		137,556	164,110	445,382	498,311
Cost of materials and other		72,594	105,596	262,713	330,644
Operating expenses (excluding depreciation and amortization presented below)		18,435	15,395	51,820	42,889
Segment contribution margin		46,527	43,119	130,849	124,778
General and administrative expenses		5,280	3,076	15,046	9,798
Depreciation and amortization		6,588	6,702	19,801	19,721
(Gain) loss on asset disposals		(70)	717	(95)	648
Operating income		34,729	32,624	96,097	94,611
Capital spending		3,992	2,991	6,238	7,440
Total assets		767,807		767,807		$ 624,593
Pipelines and transportation
Segment Reporting Information [Line Items]
Affiliates (1)		39,304	36,132	112,694	99,624
Third party		5,281	3,653	16,733	11,618
Net revenues		44,585	39,785	129,427	111,242
Cost of materials and other		4,947	5,055	17,871	14,691
Operating expenses (excluding depreciation and amortization presented below)		12,547	9,499	36,109	29,054
Segment contribution margin		27,091	25,231	75,447	67,497
Capital spending		3,103	2,086	1,893	4,320
Total assets		529,219		529,219		387,333
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Affiliates (1)		27,343	27,703	78,836	78,935
Third party		65,628	96,622	237,119	308,134
Net revenues		92,971	124,325	315,955	387,069
Cost of materials and other		67,647	100,541	244,842	315,953
Operating expenses (excluding depreciation and amortization presented below)		5,888	5,896	15,711	13,835
Segment contribution margin		19,436	17,888	55,402	57,281
Capital spending		889	905	4,345	3,120
Total assets		$ 238,588		$ 238,588		$ 237,260
Big Spring Logistic Assets
Segment Reporting Information [Line Items]
Business Acquisition, Transaction Costs			$ 400		$ 400
[1]	See Note 3 for a description of our material affiliate revenue transactions.

Segment Data - PP&E (Details)

Segment Data - PP&E (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 457,716	$ 457,716	$ 452,746
Less: accumulated depreciation	(159,623)	(159,623)	(140,184)
Property, plant and equipment, net	298,093	298,093	$ 312,562
Depreciation expense	6,588	19,801
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	361,478	361,478
Less: accumulated depreciation	(122,397)	(122,397)
Property, plant and equipment, net	239,081	239,081
Depreciation expense	5,240	15,784
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	96,238	96,238
Less: accumulated depreciation	(37,226)	(37,226)
Property, plant and equipment, net	59,012	59,012
Depreciation expense	$ 1,348	$ 4,017

Commitments and Contingencies

Commitments and Contingencies - Crude Oil Releases (Details) - USD ($) $ in Millions	Oct. 03, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies, period increase (decrease)		$ 0	$ 0.2	$ 0.3	$ 0.3
Magnolia Release | Other Current Liabilities [Member] | Magnolia Release
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies		2.2		2.2		$ 2.2
Operating Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies		0.4		0.4
Delek US | Omnibus Agreement | Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures		0.5	1	4.6	8
Delek US | Omnibus Agreement | Operating Expense [Member] | Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures		$ 0.3	$ 1.4	$ 6	$ 7.8
Subsequent Event | Minimum
Loss Contingencies [Line Items]
Maintenance and remediation costs	$ 4
Subsequent Event | Maximum
Loss Contingencies [Line Items]
Maintenance and remediation costs	$ 6

Commitments and Contingencies_2

Commitments and Contingencies - Letters of Credit (Details)	Sep. 30, 2019USD ($)
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 Payments, Maturi

Leases - Lease Payments, Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leases, After Adoption of 842:
October 1 to December 31, 2019	$ 1,533
2020	6,055
2021	5,755
2022	5,047
2023	2,459
Thereafter	0
Total lease payments	20,849
Less: Interest	2,551
Present value of lease liabilities	$ 18,298	$ 20,200
Operating Leases, Before Adoption of 842:
2019			$ 5,755
2020			5,659
2021			5,337
2022			5,031
2023			2,429
Thereafter			8
Total future minimum lease payments			$ 24,219

Leases - Lease Cost and Other I

Leases - Lease Cost and Other Information (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 1,744	$ 4,643
Short-term lease cost	47	850
Total lease cost	1,791	5,493
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	(1,744)	(4,643)
Leased assets obtained in exchange for new operating lease liabilities	$ 649	$ 649
Weighted-average remaining lease term (years) for operating leases	3 years 6 months 29 days	3 years 6 months 29 days
Weighted-average discount rate (2) operating leases	7.80%	7.80%

Subsequent Events - Distributi

Subsequent Events - Distribution Declaration (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Subsequent Event [Line Items]
Cash distributions per limited partner unit (in dollars per share)	$ 0.880	$ 0.790	$ 2.550	$ 2.310