Properties, Plants and Equipment (Components Of Property, Plants And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	$ 5,490,189	$ 4,852,441
Accumulated depreciation	(1,374,527)	(1,181,902)
Properties, plants and equip, net	4,115,662	3,670,539
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	305,712	255,260
Refining facilities
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	2,833,125	2,634,432
Pipelines and terminals
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	1,321,398	1,226,923
Transportation vehicles
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	21,289	35,178
Other fixed assets
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	158,401	136,545
Construction in progress
Property, Plant and Equipment [Line Items]
Properties, plants and equipment, at cost	$ 850,264	$ 564,103