Property, Plant and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 208,056		$ 208,056		$ 202,606
Accumulated depreciation	(73,000)		(73,000)		(66,289)
Property, Plant and Equipment, Net, Excluding Construction in Progress	135,056		135,056		136,317
Construction in progress	12,752		12,752		9,301
Property, plant and equipment, net	147,808		147,808		145,618
Depreciation and amortization	3,467	2,886	6,711	5,816
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	75,580		75,580		71,103
Terminals and related assets
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	104,334		104,334		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