Equity Method Investments (Details) $ in Millions				3 Months Ended			9 Months Ended
	Nov. 07, 2019 USD ($)	Jul. 30, 2019 USD ($)	Jul. 01, 2017 joint_venture	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	[1]	Sep. 30, 2019 USD ($) joint_venture	Sep. 30, 2018 USD ($)	[1],[2],[3]	May 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	May 21, 2018
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture							$ 75.3
Equity method investments				$ 360.2			360.2				$ 130.3
Income from equity method investment				16.5	$ 4.0		28.4	$ 6.9
Wink To Webster Pipeline LLC
Schedule of Equity Method Investments [Line Items]
Equity method investments				75.3			75.3
Red River
Schedule of Equity Method Investments [Line Items]
Equity method investments				$ 131.2			$ 131.2			$ 124.7
Equity method investment, ownership percentage (as percent)				33.00%			33.00%
Income from equity method investment				$ 4.7			$ 7.0
Red River Expansion Project
Schedule of Equity Method Investments [Line Items]
Equity method investments										$ 3.5
Joint Ventures | Delek US Holdings, Inc.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)			50.00%
Number of joint ventures | joint_venture			2
Joint Ventures | Delek Logistics
Schedule of Equity Method Investments [Line Items]
Equity method investments				115.8			$ 115.8				104.8
Number of joint ventures | joint_venture							2
Joint Ventures | Delek Renewables, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investments				4.2			$ 4.2				2.4
Joint Ventures | Delek US Holdings, Inc.
Schedule of Equity Method Investments [Line Items]
Equity method investments				$ 33.7			$ 33.7				$ 23.1
Paramount-Nevada Asphalt Company, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (as percent)												50.00%
Wink To Webster Pipeline LLC
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		15.00%
Minimum
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture		$ 340.0
Maximum
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture		$ 380.0
Subsequent event
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture	$ 46.2

[1] Net revenues and cost of materials and other for the three and nine months ended September 30, 2018 reflect a correction of an intercompany elimination which resulted in an increase in those accounts of $273.7 million and $347.1 million, respectively, not previously reflected on the unaudited consolidated financial statements in our September 30, 2018 Quarterly Report on Form 10-Q filed on November 9, 2018. Such amounts are not considered material to the financial statements and had no impact to operating income or net income for those periods. See Note 23 to our annual audited consolidated financial statements included in Part II, Item 8 of our 2018 Annual Report on Form 10-K, as amended and filed on June 27, 2019, for further discussion.

[2] Income tax expense for the nine months ended September 30, 2018 reflects a correction made in our 2018 Annual Report on Form 10-K (as originally filed on March 1, 2019) to record additional deferred tax expense totaling $5.5 million related to the recognition of a valuation allowance on deferred tax assets recognized in connection with the Big Spring Logistic Assets Acquisition (see Note 5) not previously reported in our September 30, 2018 Quarterly Report on Form 10-Q filed on November 09, 2018. Such amount is not considered material to the financial statements or the trend of earnings for that period. See Note 23 to our annual audited consolidated financial statements included in Part II, Item 8 of our 2018 Annual Report on Form 10-K, as amended and filed on June 27, 2019, for further discussion.

[3] Net income and deferred income taxes for the nine months ended September 30, 2018 reflects a correction made in our 2018 Annual Report on Form 10-K (as originally filed on March 1, 2019) to record additional deferred tax expense totaling $5.5 million related to the recognition of a valuation allowance on deferred tax assets recognized in connection with the Big Spring Logistic Assets Acquisition (see Note 5) not previously reported in our September 30, 2018 Quarterly Report on Form 10-Q filed on November 09, 2018. Such amount is not considered material to the financial statements or the trend of earnings for that period. See Note 23 to our annual audited consolidated financial statements included in Part II, Item 8 of our 2018 Annual Report on Form 10-K, as amended and filed on June 27, 2019, for further discussion.