Properties and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 1,714,021	$ 1,645,478
Less accumulated depreciation	385,626	352,418
Properties and equipment, net	1,328,395	1,293,060	[1]
Interest costs, capitalized during period	702	762		$ 1,510
Depreciation expense	62,900	55,800		55,100
Asset abandonment costs	600	1,100		$ 1,900
Pipelines,terminals and tankage [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	1,246,746	1,231,597
Land and right of way [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	65,331	66,215
Refining assets [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	346,058	297,217
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	28,753	28,249
Other [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 27,133	$ 22,200

[1] (1) Retrospectively adjusted as described in Note 2.