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Commitments and Contingencies - Narrative (Details) $ in Millions	3 Months Ended
	Jun. 30, 2024 USD ($)	Dec. 31, 2024 tank
Commitments and Contingencies Disclosure [Abstract]
Proceeds from legal settlements | $	$ 8.3
Number of tanks impacted by expansion | tank		2

X

- Definition

Number Of Tanks Impacted By Expansion

+ References

No definition available.

+ Details

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Namespace Prefix:	dkl_
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Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Cash received for the settlement of litigation during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

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