Equity-Based Compensation - Narrative (Details) $ in Millions				12 Months Ended
	May 03, 2023 shares	May 03, 2022 shares	Jun. 09, 2021 shares	Dec. 31, 2024 USD ($) tranche shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax expense (benefit) for equity-based awards | $				$ (3.1)	$ (2.0)	$ 0.9
Exercises in period, total intrinsic value | $				$ 20.1	$ 16.3	$ 20.5
Exercise of equity-based awards (in shares) | shares				589,300	450,123	457,405
Shares paid for tax withholding for share based compensation (in shares) | shares				256,865	223,645	463,677
Taxes paid due to the net settlement of equity-based compensation | $				$ 6.5	$ 5.2	$ 6.5
Delek US Holdings, Inc.
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Taxes paid due to the net settlement of equity-based compensation | $				$ 5.5	4.5	6.5
Performance Shares
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Minimum
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches | tranche				1
Minimum | RSUs
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Maximum
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches | tranche				3
Maximum | RSUs
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				5 years
Delek US 2006 Long-Term Incentive Plan
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares) | shares				5,053,392
2016 Long-Term Incentive Plan | Common Stock
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares) | shares	17,010,000
Number of additional shares authorized (in shares) | shares	2,015,000	760,000
Delek US 2006 and 2016 and Alon USA Energy 2005 Long-Term Incentive Plan
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost | $				$ 38.3
Unrecognized compensation cost, period for recognition (years)				1 year 4 months 24 days
Delek US 2006 and 2016 and Alon USA Energy 2005 Long-Term Incentive Plan | Continuing Operations
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense | $				$ 27.8	23.9	26.4
Delek US 2006 and 2016 and Alon USA Energy 2005 Long-Term Incentive Plan | Discontinued Operations
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense | $				$ 1.6	$ 0.2	$ 0.4
Delek Logistics GP 2012 Long-Term Incentive Plan | Common Stock
Equity-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares) | shares			912,207
Number of additional shares authorized (in shares) | shares			300,000