v3.25.2
Fair Value Measurements - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
investment
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Long-term debt gross $ 3,157.1   $ 3,157.1   $ 2,816.4
Cash collateral 9.0   9.0   7.5
Impairment of equity investments $ 8.6        
Number of impaired equity investments | investment 2        
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   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 402.1   402.1   399.1
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   1,050.0   1,050.0
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 1,091.0   1,091.0   1,086.9
Delek Logistics 2033 Notes | Senior Notes          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Long-term debt gross 700.0   700.0   $ 0.0
Delek Logistics 2033 Notes | Senior Notes | Level 1          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Fair value of debt 697.4   697.4    
RINs commitment contracts          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Gains (losses) on RINs Obligations surplus or deficit $ (5.2) $ 0.3 $ (6.3) $ 0.3