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Equity (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Limited Partners' Capital Account [Line Items]
Delek's Limited Parter Interest	59.90%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Delek's ownership interest in General Partner	95.90%dkl_OwnershipInterestinGeneralPartner
General partner's ownership interest	2.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	2.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	2.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
General Partner's units	494,197us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding	492,893us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding
Common - Public
Limited Partners' Capital Account [Line Items]
Limited Partners' Capital Account, Units Outstanding	9,417,189us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_LimitedPartnersCapitalAccountByClassAxis = dkl_CommonPublicMember	9,353,240us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_LimitedPartnersCapitalAccountByClassAxis = dkl_CommonPublicMember
Common - Delek
Limited Partners' Capital Account [Line Items]
Limited Partners' Capital Account, Units Outstanding	2,799,258us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_LimitedPartnersCapitalAccountByClassAxis = dkl_CommonDelekMember	2,799,258us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_LimitedPartnersCapitalAccountByClassAxis = dkl_CommonDelekMember
Subordinated Units [Member]
Limited Partners' Capital Account [Line Items]
Limited Partners' Capital Account, Units Outstanding	11,999,258us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_LimitedPartnersCapitalAccountByClassAxis = dkl_LimitedPartnerSubordinatedMember

X

- Definition

Ownership Interest in General Partner

+ References

No definition available.

+ Details

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Namespace Prefix:	dkl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of general partner units outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section F

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

X

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of limited partner units outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section F

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- Details

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X

- Details

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