Long-Term Obligations - Revolving Credit Facilities (Details) - USD ($) $ in Millions		3 Months Ended
	Oct. 13, 2022	Mar. 31, 2023	Dec. 31, 2022	Nov. 18, 2022	Jun. 02, 2022
Line of Credit Facility [Line Items]
Long-term debt gross		$ 2,839.5	$ 3,120.5
Issued letters of credit		$ 90.0
Fifth Third Bank | DKL Revolver | Maximum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage		0.50%
Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		0.10%
Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Prime Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		1.00%
Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Total Leverage Ratio Interest Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		2.00%
Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Prime Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		2.00%
Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Total Leverage Ratio Interest Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		3.00%
Secured Debt
Line of Credit Facility [Line Items]
Weighted average interest rate (percentage)		8.41%	7.92%
Secured Debt | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Minimum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		0.10%
Secured Debt | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment | Maximum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.25%
Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility | Debt Instrument, Interest Rate Period Two
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	4.00%
Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility | Debt Instrument, Interest Rate Period One
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	3.50%
Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility | Prime Rate | Debt Instrument, Interest Rate Period Two
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	3.00%
Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility | Prime Rate | Debt Instrument, Interest Rate Period One
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility | Minimum | Secured Overnight Financing Rate (SOFR) | Debt Instrument, Interest Rate Period One
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.10%
Revolving Credit Facility | Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 500.0			$ 44.0
Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					$ 75.0
Weighted average interest rate (percentage)		6.31%	5.67%
Revolving Credit Facility | Line of Credit | Minimum | Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		0.25%
Revolving Credit Facility | Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		1.25%
Revolving Credit Facility | Line of Credit | Maximum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage		0.30%
Revolving Credit Facility | Line of Credit | Maximum | Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		0.75%
Revolving Credit Facility | Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		1.75%
Revolving Credit Facility | Line of Credit | Delek Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,100.0
Long-term debt gross		150.0	$ 450.0
Issued letters of credit		238.6
Unused credit commitments		711.4
Revolving Credit Facility | Line of Credit | DKL Revolver
Line of Credit Facility [Line Items]
Long-term debt gross		770.6	720.5
Revolving Credit Facility | Line of Credit | United Community Bank Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		50.0
Long-term debt gross		25.0	$ 50.0
Issued letters of credit		0.0
Unused credit commitments		$ 25.0
Unused capacity, commitment fee percentage		0.50%
Weighted average interest rate (percentage)		7.00%	6.75%
Revolving Credit Facility | Line of Credit | Fifth Third Bank | DKL Revolver, Senior Secured Revolving Commitment
Line of Credit Facility [Line Items]
Weighted average interest rate (percentage)		7.57%	7.55%
Revolving Credit Facility | Line of Credit | Fifth Third Bank | DKL Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 900.0
Issued letters of credit		0.0
Unused credit commitments		129.4
Revolving Credit Facility | Secured Debt
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				$ 950.0
Revolving Credit Facility | Secured Debt | Fifth Third Bank | DKL Revolver, Delek Logistics Term Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 300.0
US Swing Line Sublimit | Line of Credit | Fifth Third Bank | DKL Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		25.0
Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		238.6
Letter of Credit | Line of Credit | Fifth Third Bank | DKL Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 115.0