Derivative Instruments And Hedging Activities (Summary Of Balance Sheet Locations And Related Fair Values Of Outstanding Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	$ 14,443	$ 54,869
Derivative, Net Liability Position, Aggregate Fair Value	33,955	25,897
Accrued Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	6,575
Other Intangible Assets [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value		1,019
Prepayments And Other [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	14,443	53,850
Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	27,380	25,897
Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,496
Derivative designated as cash flow hedging instrument asset - gross liability	0
Derivative designated as cash flow hedging instrument asset - net asset	2,496
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	58,346	174,677
Derivative designated as cash flow hedging instrument asset - gross liability	(51,209)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	7,137	32,562
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	42,555	22,506
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(14,851)	0
Derivative, Net Liability Position, Aggregate Fair Value	27,704	22,506
Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	0
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	0
Derivative, Net Liability Position, Aggregate Fair Value	0
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	55,850	173,658
Derivative designated as cash flow hedging instrument asset - gross liability	(51,209)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	4,641	31,543
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	41,721	21,441
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(14,851)	0
Derivative, Net Liability Position, Aggregate Fair Value	26,870	21,441
Designated as Hedging Instrument [Member] | HEP Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	1,019
Derivative Instruments in Hedges, Assets, at Fair Value	0	1,019
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	834	1,065
Derivative, Net Liability Position, Aggregate Fair Value	834	1,065
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	20,845	35,249
Derivative designated as cash flow hedging instrument asset - gross liability	(13,539)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	7,306	22,307
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	33,841	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(27,590)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	6,251	3,391
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	15,781	17,630
Derivative designated as cash flow hedging instrument asset - gross liability	(13,539)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	2,242	4,688
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	33,841	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(27,590)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	6,251	3,391
Not Designated as Hedging Instrument [Member] | Nymex Futures Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	5,064	17,619
Derivative Instruments in Hedges, Assets, at Fair Value	5,064	17,619
Derivative Instrument Not Designated as Hedging Instrument - Gross Liability		0
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	0
Derivative, Net Liability Position, Aggregate Fair Value	$ 0	$ 0