Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 588,113	$ 576,056
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(182,743)	(157,328)
Property, plant and equipment, net, excluding construction in progress	405,370	418,728
Property, plant and equipment, net	412,170	430,141
Depreciation	38,000	34,200	$ 27,600
Interest Expense, Construction in Progress, Contra	900	0	$ 0
Land and Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	26,463	38,454
Pipelines and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	264,398	241,222
Terminals and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	245,512	237,234
Asphalt plant, terminals and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	26,861	26,898
Wholesale facilities and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	24,879	32,248
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	6,800	$ 11,413
Property, Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	$ 7,300