Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 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. 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 have been substantially completed or have received regulatory closure, with the exception of one release, which is currently in boom maintenance. Many of the releases have occurred on our system of common carrier pipelines (the "Gathering Assets"). During the year ended December 31, 2019, we decommissioned certain sections of the Gathering Assets in an effort to improve the safety and integrity of the system. The decommissioning of these sections was completed in August 2019. The project did not have a material effect on the financial results. Regulatory authorities could require additional remediation based on the results of our remediation efforts. We may incur additional expenses as a result of further scrutiny by regulatory authorities and continued compliance with laws and regulations to which our assets are subject. As of December 31, 2019, we have accrued $0.3 million for remediation and other such matters related to these releases. On October 3, 2019, a release of diesel fuel involving one of our pipelines occurred near Sulphur Springs, Texas (the "Sulphur Springs Release"). Cleanup operations and site maintenance and remediation on this release have been substantially completed where such costs incurred totaled $7.1 million as of December 31, 2019. Ground water wells for monitoring activities are expected to be installed in the first quarter of 2020. We expect the monitoring period to last for at least a year. We have not received notification that any legal action with respect to fines and penalties will be pursued by the regulatory agencies. Expenses incurred for the remediation of crude oil and other releases are included in operating expenses in our consolidated statements of income and comprehensive income. The majority of our releases are subsequently reimbursed by Delek Holdings pursuant to the terms of the Omnibus Agreement, with the exception of the Sulphur Springs Release above as it is not covered under the Omnibus Agreement. Reimbursements are recorded as a reduction to operating expenses. 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 years ended December 31, 2019, 2018, we recorded approximately $0.4 million and $0.4 million of expense, respectively, which excludes the Sulphur Springs Release above and is net of total reimbursable costs from Delek Holdings pursuant to the terms of the Omnibus Agreement. Reimbursable costs amounted to $4.8 million and $9.8 million for the years ended December 31, 2019 and 2018, respectively, to cover the costs of asset failures. In March 2013, a release of crude oil occurred from a pumping facility at our Magnolia Station located West of Delek Holdings' El Dorado Refinery (the "Magnolia Release"). On July 13, 2018, the United States Department of Justice (the "DOJ") and the State of Arkansas filed a civil action against two of our wholly-owned subsidiaries, Delek Logistics Operating, LLC and SALA Gathering Systems, LLC, in the United States District Court (the "Court") for the Western District of Arkansas related to the Magnolia Release. 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 abandoning the demand for a compliance audit at the Magnolia terminal in exchange for settlement payments totaling $2.2 million. On November 8, 2019, a consent decree was entered with the Court and on November 20, 2019 final payments were made to the State of Arkansas in the amount of $0.6 million and to the DOJ in the amount of $1.7 million, which amounts include a nominal amount of interest. Letters of Credit As of December 31, 2019, we had no letters of credit in place under the DKL Credit Facility.