Fixed Assets And Asset Retirement Obligations (Schedule Of Fixed Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,310,226	$ 1,899,058
Accumulated depreciation	(378,247)	(268,057)
Net fixed assets	3,931,979	1,631,001
Pipelines And Related Assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,501,821	466,613
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	414,100	376,672
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	19,025	18,479
Marine Vessels [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	794,508	731,016
Land, Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	41,202	38,037
Office Equipment, Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,540	6,696
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	485,575	222,233
Property, Plant And Equipment, Other Types [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 46,455	$ 39,312