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Segment Data - PP&E (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 701,823	$ 701,823	$ 692,282
Less: accumulated depreciation	(247,072)	(247,072)	(227,470)
Property, plant and equipment, net	454,751	454,751	$ 464,812
Depreciation expense	9,967	20,706
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	587,821	587,821
Less: accumulated depreciation	(192,077)	(192,077)
Property, plant and equipment, net	395,744	395,744
Depreciation expense	8,035	16,862
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	114,002	114,002
Less: accumulated depreciation	(54,995)	(54,995)
Property, plant and equipment, net	59,007	59,007
Depreciation expense	$ 1,932	$ 3,844

X

- Definition

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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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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