Derivative Instruments and Hedging Activities Interest Rate Swaps (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	$ 3,983	$ (107,518)	$ 8,808
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	49,592	52,884	16,410
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	(1,080)	(1,080)	(900)
Gain (Loss) recognized in earnings due to settlements	48,512	51,804	15,510
HEP
Derivative [Line Items]
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	(1,864)	(2,104)	1,194
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	2,100	2,202	2,092
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net			849
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	236	98	4,135
Sales Revenue, Services, Net [Member]
Derivative [Line Items]
Gain (Loss) recognized in earnings due to settlements	$ (2,100)	$ (2,202)	$ (2,941)