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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 $ 13,056us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid $ 12,394us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid $ 11,910us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid $ 10,474us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid $ 10,228us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid      
Subsequent Event [Member]                
Related Party Transaction [Line Items]                
Quarterly cash distributions declared           13,702us-gaap_DistributionMadeToLimitedPartnerCashDistributionsDeclared
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		    
Delek [Member]                
Related Party Transaction [Line Items]                
Revenues             32,280us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 25,282us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember
Operating and maintenance expenses             7,552us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 [1] 5,569us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 [1]
General and administrative expenses             1,256us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 [2] 1,282us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 [2]
Delek [Member] | El Dorado [Member]                
Related Party Transaction [Line Items]                
Operating and maintenance expenses               400us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= dkl_ElDoradoTerminalandTanksMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember
General and administrative expenses               100us-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             200us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= dkl_LogisticsAssetsPredecessorMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 200us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= dkl_LogisticsAssetsPredecessorMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember
General and administrative expenses             0us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= dkl_LogisticsAssetsPredecessorMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUsMember		 0us-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             7,800us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dkl_DelekUSandGeneralPartnerMember		 6,300us-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           $ 8,700us-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.