Property, Plant and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 209,925		$ 209,925		$ 202,606
Accumulated depreciation	(76,331)		(76,331)		(66,289)
Property, plant and equipment, net, excluding construction in progress	133,594		133,594		136,317
Construction in progress	13,821		13,821		9,301
Property, plant and equipment, net	147,415		147,415		145,618
Depreciation and amortization	3,331	4,057	10,042	9,873
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	5,428		5,428		5,428
Pipelines and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	75,782		75,782		71,103
Terminals and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	106,001		106,001		103,361
Asphalt plant, terminals and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 22,714		$ 22,714		$ 22,714