Fair Value Measurements - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) facility	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt gross	$ 2,816.4	$ 2,657.3
Cash collateral	$ 7.5	1.8
Number of biodiesel facilities impaired | facility	3
Property, Plant and Equipment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 0.5
Delek Logistics 2028 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt gross	400.0	400.0
Delek Logistics 2028 Notes | Senior Notes | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt	399.1	380.4
Delek Logistics 2029 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt gross	1,050.0	0.0
Delek Logistics 2029 Notes | Senior Notes | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt	1,086.9
RINs commitment contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) on RINs Obligations surplus or deficit	$ 1.1	$ (1.8)	$ (61.2)