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Equity Method Investments (Notes) | 12 Months Ended
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Dec. 31, 2016
Equity Method Investments [Abstract] |
Equity Method Investments and Joint Ventures Disclosure [Text Block] | Equity Method Investments In March 2015, the Partnership, through its indirect wholly owned subsidiary DKL Caddo, LLC ("DKL Caddo"), became a member of Caddo Pipeline LLC ("CP LLC") by entering into an amended and restated limited liability company agreement (the “Caddo LLC Agreement”) with Plains Pipeline, L.P. ("Plains"), an affiliate of Plains All American Pipeline, L.P. CP LLC was formed to plan, develop, construct, own, operate and maintain a pipeline system and certain ancillary assets originating near Longview, Texas and extending to Shreveport, Louisiana (the "Caddo Pipeline System"). Pursuant to the terms of the Caddo LLC Agreement, DKL Caddo and Plains each own a 50% membership interest in CP LLC. Pursuant to separate agreements, Plains has primary responsibility for the construction of the Caddo Pipeline System and, upon its completion in January 2017, Plains will also have primary responsibility for its day-to-day operations. In March 2015, the Partnership, through its indirect wholly owned subsidiary, DKL RIO, LLC ("DKL RIO"), became a member of Rangeland RIO Pipeline, LLC ("Rangeland RIO") by entering into an amended and restated limited liability company agreement (the "Rangeland LLC Agreement") with Rangeland Energy II, LLC ("Rangeland"). Rangeland RIO was formed to plan, develop, construct, own, operate and maintain a pipeline system and certain ancillary assets extending from Loving County, Texas to Midland, Texas (the "RIO Pipeline"). Pursuant to the terms of the Rangeland LLC Agreement, DKL RIO owns 33% of Rangeland RIO, and Rangeland owns 67%. Construction on the pipeline has been substantially completed, and operations began in September 2016. Rangeland has primary responsibility for the pipeline's day-to-day operations. The Partnership's investments in these two entities were financed through a combination of cash from operations and borrowings under the Second Amended and Restated Credit Agreement. As of December 31, 2016, the Partnership's investment balance in these joint ventures was $101.1 million and was accounted for using the equity method. We do not consolidate any part of the assets or liabilities of our equity 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 CP LLC and Rangeland RIO, we determined that these entities do not represent variable interest entities and consolidation was not required. We have the ability to exercise 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. Summarized FInancial Information Combined summarized financial information for our equity investees is shown below (in thousands):
|  | Year Ended |  | Year Ended
|  | December 31, 2016 |  | December 31, 2015
Current assets |  | $ | 7,760 |  |  | $ | 11,705 |
Non-current assets |  | $ | 237,516 |  |  | $ | 87,467 |
Current liabilities |  | $ | 4,512 |  |  | $ | 4,797 |
Non-current liabilities |  | $ | — |  |  | $ | — |
|  | Year Ended |  | Year Ended
|  | December 31, 2016 |  | December 31, 2015
Revenues |  | $ | 2,217 |  |  | $ | — |
Gross profit |  | $ | 2,217 |  |  | $ | — |
Net loss |  | $ | (3,641 | ) |  | $ | (1,967 | )

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- Definition Equity Method Investments [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=49116238&loc=d3e32847-111569 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=49116238&loc=d3e32787-111569 + Details
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