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Related Party Transactions - Omnibus Agreement (Details) - Omnibus Agreement - Delek - USD ($) $ in Millions		12 Months Ended
	Mar. 01, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Obligation to pay annual fee	$ 4.7
Delek US
Related Party Transaction [Line Items]
Recovery of direct costs		$ 0.1	$ 4.8
Operating and maintenance expenses | Delek US
Related Party Transaction [Line Items]
Recovery of direct costs		0.1	6.3	$ 8.2
Other Noncurrent Liabilities | Delek US
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Delek Holdings		$ 0.6	$ 3.7	$ 5.0

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- Definition

Reimbursement Of Capital Expenditures By Sponsor

+ References

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- Definition

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+ References

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- Definition

Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

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