Segment Data - PP&E (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 3,514.9	$ 3,514.9	$ 3,362.8
Less: accumulated depreciation	(1,031.5)	(1,031.5)	(934.5)
Property, plant and equipment, net	2,483.4	2,483.4	$ 2,428.3
Depreciation	57.7	108.5
Operating Segments \| Refining
Segment Reporting Information [Line Items]
Property, plant and equipment	2,561.6	2,561.6
Less: accumulated depreciation	(713.5)	(713.5)
Property, plant and equipment, net	1,848.1	1,848.1
Depreciation	43.2	78.8
Operating Segments \| Logistics
Segment Reporting Information [Line Items]
Property, plant and equipment	681.0	681.0
Less: accumulated depreciation	(207.2)	(207.2)
Property, plant and equipment, net	473.8	473.8
Depreciation	8.6	14.9
Operating Segments \| Retail
Segment Reporting Information [Line Items]
Property, plant and equipment	163.9	163.9
Less: accumulated depreciation	(42.4)	(42.4)
Property, plant and equipment, net	121.5	121.5
Depreciation	3.1	5.8
Consolidation, Eliminations
Segment Reporting Information [Line Items]
Property, plant and equipment, net	40.0	40.0
Depreciation	2.8
Corporate, Reconciling Items, And Eliminations [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment	108.4	108.4
Less: accumulated depreciation	$ (68.4)	(68.4)
Depreciation		$ 9.0

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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