Long-Term Obligations - Outstanding Borrowings Schedule (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt gross	$ 2,657.3	$ 3,120.5
Less: Unamortized discount and deferred financing costs	(57.5)	(66.8)
Total debt, net of unamortized discount and deferred financing costs	2,599.8	3,053.7
Less: Current portion of long-term debt	44.5	74.5
Long-term debt, net of current portion	2,555.3	2,979.2
Secured Debt | Delek Term Loan Credit Facility
Debt Instrument [Line Items]
Long-term debt gross	940.5	950.0
Senior Notes | Delek Logistics 2025 Notes
Debt Instrument [Line Items]
Long-term debt gross	250.0	250.0
Senior Notes | Delek Logistics 2028 Notes
Debt Instrument [Line Items]
Long-term debt gross	400.0	400.0
Revolving Credit Facility | Line of Credit | Delek Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt gross	0.0	450.0
Revolving Credit Facility | Line of Credit | Delek Logistics Revolving Facility
Debt Instrument [Line Items]
Long-term debt gross	780.5	720.5
Revolving Credit Facility | Line of Credit | Delek Logistics Term Loan Facility
Debt Instrument [Line Items]
Long-term debt gross	281.3	300.0
Revolving Credit Facility | Line of Credit | United Community Bank Revolver
Debt Instrument [Line Items]
Long-term debt gross	$ 5.0	$ 50.0