Properties and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 1,420,080		$ 1,411,597
Less accumulated depreciation	365,922		352,418
Properties and equipment, net	1,054,158		1,059,179	[1]
Interest costs, capitalized during period	(498)	$ (668)
Depreciation expense	42,100	$ 40,800
Pipelines and terminals [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	1,202,357		1,231,597
Land and right of way [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	65,274		66,215
Refinery assets [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	64,371		63,336
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	62,247		28,249
Other Fixed Assets [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 25,831		$ 22,200

[1] Retrospectively adjusted as described in Note 1.