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Segment Data - PP&E (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 454,581	$ 454,581	$ 452,746
Less: accumulated depreciation	(153,036)	(153,036)	(140,184)
Property, plant and equipment, net	301,545	301,545	$ 312,562
Depreciation expense	6,639	13,213
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	359,632	359,632
Less: accumulated depreciation	(117,158)	(117,158)
Property, plant and equipment, net	242,474	242,474
Depreciation expense	5,303	10,544
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	94,949	94,949
Less: accumulated depreciation	(35,878)	(35,878)
Property, plant and equipment, net	59,071	59,071
Depreciation expense	$ 1,336	$ 2,669

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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