Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012 bbl	Jun. 30, 2011	Jun. 30, 2012 bbl	Jun. 30, 2011	Jun. 30, 2013 bbl
Derivative [Line Items]
Number of barrels hedged under swap contracts	4,508,000		4,508,000		540,000
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	$ (235,000)	$ 271,000	$ 685,000	$ 1,554,000
Gain (loss) on economic hedges	(52,406,000)	(3,045,000)	(35,711,000)	652,000
Net unrealized gain on accumulated other comprehensive loss related to cash flow hedges			41,200,000
Net unrealized gain effectively transferred from accumulated other comprehensive loss hedging instruments			43,000,000
Gain (loss) on derivatives reclassified from accumulated OCI to income, period	12 months
Cost of Sales [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	(50,863,000)	(3,045,000)	(35,869,000)	652,000
Operating Expense [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	(1,543,000)	0	158,000	0
Natural Gas [Member]
Derivative [Line Items]
Number of barrels hedged under swap contracts	6,624,000		6,624,000
HEP [Member]
Derivative [Line Items]
Accumulated other comprehensive loss that relates to cash flow hedging instruments	5,800,000		5,800,000
Cash flow hedge to be amortized to interest expense within twelve months			3,400,000
HEP [Member] | Interest Rate Swap Contracts [Member]
Derivative [Line Items]
Credit agreement advance	$ 155,000,000		$ 155,000,000
Fixed interest rate	0.99%		0.99%
Rate added to fixed base rate	2.00%		2.00%
Effective interest rate on debt	2.99%		2.99%