Long-Term Obligations - Delek Logistics Notes (Details) - Senior Notes - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025	Aug. 16, 2024	Apr. 17, 2024	Mar. 13, 2024	May 24, 2021
Delek Logistics 2033 Notes
Debt Instrument [Line Items]
Debt instrument, face amount		$ 700.0
Interest rate, stated percentage		7.325%
Interest rate, effective percentage	7.64%
Delek Logistics 2029 Notes
Debt Instrument [Line Items]
Debt instrument, face amount					$ 650.0
Interest rate, stated percentage					8.625%
Interest rate, effective percentage	8.80%
Additional 2029 Notes
Debt Instrument [Line Items]
Debt instrument, face amount			$ 200.0	$ 200.0
Interest rate, stated percentage			8.625%	8.625%
Debt instrument, premium percentage			1.0325	1.0125
Delek Logistics 2028 Notes
Debt Instrument [Line Items]
Debt instrument, face amount						$ 400.0
Interest rate, stated percentage						7.125%
Interest rate, effective percentage	7.38%