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Related Party Transactions Summary of Transactions (Details) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 3 Months Ended
--- | --- | ---
Feb. 13, 2015 | Nov. 14, 2014 | Aug. 14, 2014 | May 14, 2014 | Feb. 13, 2014 | Apr. 21, 2015 | Mar. 31, 2015 | Mar. 31, 2014
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Quarterly cash distributions paid | $ 13,056 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid | $ 12,394 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid | $ 11,910 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid | $ 10,474 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid | $ 10,228 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Quarterly cash distributions declared |  |  |  |  |  | 13,702 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
Delek [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 32,280 us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |  | 25,282 us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |
Operating and maintenance expenses |  |  |  |  |  |  | 7,552 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember | [1] | 5,569 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember | [1]
General and administrative expenses |  |  |  |  |  |  | 1,256 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember | [2] | 1,282 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember | [2]
Delek [Member] | El Dorado [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Operating and maintenance expenses |  |  |  |  |  |  |  |  | 400 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_ElDoradoTerminalandTanksMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |
General and administrative expenses |  |  |  |  |  |  |  |  | 100 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_ElDoradoTerminalandTanksMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |
Delek [Member] | Logistics Assets Predecessor [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Operating and maintenance expenses |  |  |  |  |  |  | 200 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_LogisticsAssetsPredecessorMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |  | 200 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_LogisticsAssetsPredecessorMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |
General and administrative expenses |  |  |  |  |  |  | 0 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_LogisticsAssetsPredecessorMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |  | 0 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = dkl_LogisticsAssetsPredecessorMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUsMember |
Delek US and General Partner [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Quarterly cash distributions paid |  |  |  |  |  |  | 7,800 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUSandGeneralPartnerMember |  | 6,300 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUSandGeneralPartnerMember |
Delek US and General Partner [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Quarterly cash distributions declared |  |  |  |  |  | $ 8,700 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsDeclared / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = dkl_DelekUSandGeneralPartnerMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
[1] | Operating and maintenance expenses include costs allocated to the El Dorado Predecessor for operating support provided to the El Dorado Predecessor and the Logistics Assets Predecessor by Delek, including certain labor related costs, property and liability insurance costs and certain other operating expenses. With respect to the El Dorado Predecessor and the Logistics Assets Predecessor, the costs that were allocated to us by Delek were $0.4 million and $0.2 million, respectively, for the three months ended March 31, 2014. Costs that were allocated to us by Delek with respect to the Logistics Assets Predecessor were $0.2 million for the three months ended March 31, 2015.
[2] | General and administrative expenses include costs allocated to the El Dorado Predecessor for general and administrative support provided to the El Dorado Predecessor by Delek, including services such as corporate management, risk management, accounting and human resources. With respect to the El Dorado Predecessor, the costs that were allocated to us by Delek were $0.1 million for the three months ended March 31, 2014.

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