Related Party Transactions - Throughput and Deficiency Agreement (Details)									3 Months Ended		6 Months Ended
	May 12, 2020 USD ($)	May 01, 2020 USD ($)	Mar. 31, 2020 USD ($) bbl / pure	Feb. 12, 2020 USD ($)	Nov. 12, 2019 USD ($)	Aug. 13, 2019 USD ($)	May 14, 2019 USD ($)	Feb. 12, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 30,878,000			$ 30,634,000	$ 30,379,000	$ 28,914,000	$ 27,400,000	$ 26,900,000	$ 47,558,000		$ 47,558,000
Delek US and affiliates
Related Party Transaction [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 23,200,000			$ 22,600,000			$ 20,000,000.0	$ 19,600,000
Throughput and Deficiency Agreement | Delek US and affiliates
Related Party Transaction [Line Items]
Commitment To Minimum Revenue		$ 39,000,000.0
Shipments Committed On The Gathering System (in Bbd)			120,000
Shipments Committed To Redelivery Point (in Bbd)			50,000
Commitment To Connect Additional Receipt Points			$ 33,800,000
Return On The Actual Costs (in percent)			12.50%
Collaborative Arrangement, Term		10 years	10 years
Delek US | Other long term liabilities | Omnibus Agreement | Delek US and affiliates
Related Party Transaction [Line Items]
Reimbursement of capital expenditures by Sponsor										$ 700,000	$ 600,000	$ 1,500,000