Derivative Instruments And Hedging Activities Interest Rate Swaps (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 HEP [Member]	Jun. 30, 2012 HEP [Member]	Sep. 30, 2012 Interest Rate Contract [Member] HEP [Member]	Sep. 30, 2012 Current Interest Rate Swap [Member] HEP [Member]
Derivative [Line Items]
Credit agreement advance							$ 155,000,000
Derivative, Fixed Interest Rate							0.74%	0.99%
Debt Instrument, Basis Spread on Variable Rate							2.00%
Debt Instrument, Interest Rate, Effective Percentage							2.74%	2.99%
Credit Agreement Advances Created in 2012							150,000,000
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax						5,900,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months					2,100,000
Other Comprehensive Income (Loss), Change in Fair Value of Cash Flow Hedge	(1,802,000)	(310,000)	(4,240,000)	(1,485,000)
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	(107,000)	1,093,000	578,000	2,647,000
Cash Flow Hedge Loss Reclassified to Interest Expense	1,695,000	1,403,000	4,818,000	4,132,000
Cash Flow Hedge Gain (Loss) Reclassified to Interest Expense, Net	$ (1,695,000)	$ (1,403,000)	$ (4,818,000)	$ (4,132,000)