Derivative Instruments And Hedging Activities (Summary Of Balance Sheet Locations And Related Fair Values Of Outstanding Derivative Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	$ 29,969	$ 54,869
Derivative, Net Liability Position, Aggregate Fair Value	28,495	25,897
Accrued Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	4,727
Other Intangible Assets [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	674	1,019
Prepayments And Other [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	29,295	53,850
Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	23,768	25,897
Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	223
Derivative designated as cash flow hedging instrument asset - gross liability	(166)
Derivative designated as cash flow hedging instrument asset - net asset	57
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	24,580	35,249
Derivative designated as cash flow hedging instrument asset - gross liability	(7,461)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	17,119	22,307
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	27,518	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(23,475)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	4,043	3,391
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	24,580	17,630
Derivative designated as cash flow hedging instrument asset - gross liability	(7,461)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	17,119	4,688
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	27,282	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(23,475)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	3,807	3,391
Not Designated as Hedging Instrument [Member] | Nymex Futures Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	17,619
Derivative Instruments in Hedges, Assets, at Fair Value	0	17,619
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	236
Derivative, Net Liability Position, Aggregate Fair Value	236	0
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	62,727	174,677
Derivative designated as cash flow hedging instrument asset - gross liability	(49,877)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	12,850	32,562
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	45,917	22,506
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(21,465)	0
Derivative, Net Liability Position, Aggregate Fair Value	24,452	22,506
Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	2,563
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(439)
Derivative, Net Liability Position, Aggregate Fair Value	2,124
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	62,370	173,658
Derivative designated as cash flow hedging instrument asset - gross liability	(49,711)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	12,659	31,543
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	42,647	21,441
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(21,026)	0
Derivative, Net Liability Position, Aggregate Fair Value	21,621	21,441
Designated as Hedging Instrument [Member] | HEP Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	134	1,019
Derivative designated as cash flow hedging instrument asset - gross liability	0	0
Derivative Instruments in Hedges, Assets, at Fair Value	134	1,019
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	707	1,065
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	0	0
Derivative, Net Liability Position, Aggregate Fair Value	$ 707	$ 1,065