Delek Logistics and the Alon Partnership - Delek Logistics and Alon Partnership Balance Sheet (Details) $ in Millions	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Feb. 07, 2018	Dec. 31, 2017 USD ($)	Jul. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)
ASSETS
Cash and cash equivalents	$ 955.3	$ 1,079.3
Accounts receivable, net	792.6	514.4
Inventory	946.7	677.9
Other current assets	268.7	148.7
Property, plant and equipment, net	2,428.3	2,194.9
Equity method investments	407.3	130.3
Operating lease right-of-use assets	183.6
Goodwill	855.7	857.8		$ 816.6		$ 12.2
Intangible assets, net	110.3	104.4
Other non-current assets	67.8	52.9
Total assets	7,016.3	5,760.6
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	1,599.7	1,011.2
Current portion of operating lease liabilities	40.5
Accrued expenses and other current liabilities	346.8	307.7
Long-term debt	2,030.7	1,751.3
Asset retirement obligations	68.6	75.5		$ 72.1
Operating lease liabilities, net of current portion	144.3
Deferred tax liabilities	267.9	210.2
Other non-current liabilities	30.9	62.9
Total liabilities and stockholders’ equity	7,016.3	5,760.6
Delek Logistics Partners, LP | Variable Interest Entity, Primary Beneficiary
ASSETS
Cash and cash equivalents	5.5	4.5
Accounts receivable, net	13.2	21.6
Inventory	12.6	5.5
Other current assets	2.3	1.0
Property, plant and equipment, net	295.0	312.6
Equity method investments	247.0	104.8
Operating lease right-of-use assets	3.7
Goodwill	12.2	12.2
Intangible assets, net	131.0	138.2
Other non-current assets	21.9	24.2
Total assets	744.4	624.6
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	12.5	14.2
Accounts payable to related parties	8.9	7.8
Current portion of operating lease liabilities	1.4
Accrued expenses and other current liabilities	12.2	14.5
Long-term debt	833.1	700.4
Asset retirement obligations	5.6	5.2
Operating lease liabilities, net of current portion	2.3
Deferred tax liabilities	0.2	0.0
Other non-current liabilities	19.3	17.3
Equity	(151.1)	(134.8)
Total liabilities and stockholders’ equity	$ 744.4	$ 624.6
Alon USA Energy, Inc.
ASSETS
Goodwill					$ 870.7
New Delek Common Stock | Alon USA Energy, Inc.
Fixed exchange ratio of shares			0.49