Limited Partners Interest In Partnership, Shares

No definition available.

Name:	dkl_LimitedPartnersInterestInPartnershipShares
Namespace Prefix:	dkl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Ownership Interest in General Partner

+ References

No definition available.

+ Details

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

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

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

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of general partner units outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120397183&loc=d3e187171-122770

+ Details

Name:	us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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://fasb.org/us-gaap/role/ref/legacyRef
-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

- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

+ Details

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

- Definition

The number of limited partner units outstanding.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

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- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=dkl_CommonDelekMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=us-gaap_LimitedPartnerMember
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- Details

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- Details

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Data Type:	na
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- Details

Name:	srt_OwnershipAxis=dkl_GeneralPartnershipMember
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- Details

Name:	dei_LegalEntityAxis=dkl_DelekUSHoldingsInc.Member
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Equity - Narrative (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
Equity - Narrative (Details) - USD ($) $ in Millions	Aug. 13, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Aug. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
General partner units outstanding (units)		0		0			498,482
Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)		8,687,371		8,687,371			9,131,579
Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)		34,745,868		34,745,868			15,294,046
Limited Partner \| Delek US
Class of Stock [Line Items]
Limited Partners Interest In Partnership, Shares						14,000,000.0
Limited Partner \| Common unitholders - public
Class of Stock [Line Items]
Common units outstanding (in shares)		8,687,371		8,687,371
Limited Partner \| Common unitholders - Delek
Class of Stock [Line Items]
Common units outstanding (in shares)		34,745,868		34,745,868
Delek US Holdings, Inc.
Class of Stock [Line Items]
Delek's limited partner ownership interest (as percent)				80.00%
General Partnership
Class of Stock [Line Items]
General partner's ownership interest (as percent)		0.00%	2.00%	2.00%	2.00%
Delek US Holdings, Inc. \| General Partnership
Class of Stock [Line Items]
Ownership Interest in General Partner (as percent)	100.00%
Business Acquisition, Percentage of Voting Interests Acquired	5.20%
Business Combination, Acquisition Related Costs	$ 1.1