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Subsequent Events Haynesville Spill (Details) (Subsequent Event [Member])	Apr. 25, 2014 bbl
Minimum [Member]
Subsequent Event [Line Items]
Barrels of crude oil released	300
Maximum [Member]
Subsequent Event [Line Items]
Barrels of crude oil released	400

X

- Definition

Barrels of crude oil released

+ References

No definition available.

+ Details

Name:	dkl_Barrelsofcrudeoilreleased
Namespace Prefix:	dkl_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	instant

X

- Details

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