Related Party Transactions - Quarterly Cash Distributions (Details) - USD ($) $ in Thousands							1 Months Ended
	Oct. 25, 2017	Aug. 11, 2017	May 12, 2017	Feb. 14, 2017	Nov. 14, 2016	Aug. 12, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016
Related Party Transaction [Line Items]
Quarterly cash distributions paid		$ 21,783	$ 21,024	$ 20,537	$ 19,302	$ 18,100		$ 17,100	$ 16,100
Subsequent Event [Member]
Related Party Transaction [Line Items]
Quarterly distributions declared	$ 22,270
Delek US and affiliates [Member]
Related Party Transaction [Line Items]
Quarterly cash distributions paid		$ 15,400	$ 14,700	$ 14,200			$ 12,100	$ 11,300	$ 10,500
Delek US and affiliates [Member] \| Subsequent Event [Member]
Related Party Transaction [Line Items]
Quarterly distributions declared	$ 15,800