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Segment Data - PP&E (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 445,235	$ 367,179
Less: accumulated depreciation	(120,918)	(112,111)
Property, plant and equipment, net	324,317	$ 255,068
Depreciation expense	5,911
Pipelines and transportation
Segment Reporting Information [Line Items]
Property, plant and equipment	366,380
Less: accumulated depreciation	(91,983)
Property, plant and equipment, net	274,397
Depreciation expense	4,930
Wholesale marketing and terminalling
Segment Reporting Information [Line Items]
Property, plant and equipment	78,855
Less: accumulated depreciation	(28,935)
Property, plant and equipment, net	49,920
Depreciation expense	$ 981

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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- Definition

The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

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+ References

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+ References

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