Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Period	12 months
Gain (loss) on economic hedges	$ 29,672,000	$ (20,473,000)	$ (458,000)	$ (56,184,000)
Net unrealized loss in accumulated other comprehensive income related to cash flow hedges			(20,500,000)
Net unrealized gain effectively transferred from accumulated other comprehensive loss hedging instruments			(37,000,000)
Cost of Sales [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	29,515,000	(19,869,000)	(5,916,000)	(55,738,000)
Operating Expense [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	157,000	(604,000)	5,458,000	(446,000)
HEP [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	(1,097,000)	(107,000)	3,727,000	578,000
HEP [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Credit agreement advance	155,000,000		155,000,000
Fixed interest rate	0.74%		0.74%
Rate added to fixed base rate	2.25%
Effective interest rate on debt	2.99%		2.99%
Credit Agreement Advances Created in 2012	150,000,000		150,000,000
HEP [Member] | Current Interest Rate Swap [Member]
Derivative [Line Items]
Fixed interest rate	0.99%		0.99%
Effective interest rate on debt	3.24%		3.24%
Holly Credit Agreement Member | HEP [Member]
Derivative [Line Items]
Credit agreement advance	$ 305,000,000		$ 305,000,000