Income Taxes (Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	$ 20,565	$ 42,308
Deferred tax assets, noncurrent	101,116	75,842
Deferred tax assets, gross	121,681	118,150
Deferred tax liabilities, current	(244,564)	(187,524)
Deferred tax liabilities, noncurrent	(717,958)	(612,512)
Deferred tax liabilities, gross	(962,522)	(800,036)
Deferred taxes, net, current	(223,999)	(145,216)
Deferred taxes, net, noncurrent	(616,842)	(536,670)
Deferred taxes, net	(840,841)	(681,886)
Accrued employee benefits
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	3,138	13,285
Deferred tax assets, noncurrent	41,997
Deferred tax liabilities, current	0	0
Deferred tax liabilities, noncurrent	0
Deferred taxes, net, current	3,138	13,285
Deferred taxes, net, noncurrent	41,997
Reserve for Environmental Costs [Member]
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	5,010	5,096
Deferred tax assets, noncurrent	20,431	18,963
Deferred tax liabilities, current	0	0
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, current	5,010	5,096
Deferred taxes, net, noncurrent	20,431	18,963
Designated as Hedging Instrument [Member]
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	12,417	23,927
Deferred tax assets, noncurrent	3,744	3,802
Deferred tax liabilities, current	0	0
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, current	12,417	23,927
Deferred taxes, net, noncurrent	3,744	3,802
Inventory differences
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0	0
Deferred tax liabilities, current	(235,823)	(181,634)
Deferred taxes, net, current	(235,823)	(181,634)
Prepaid Expenses and Other Current Assets [Member]
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0
Deferred tax liabilities, current	(7,222)
Deferred taxes, net, current	(7,222)
Other Current Assets [Member]
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0	0
Deferred tax liabilities, current	(1,519)	(5,327)
Deferred taxes, net, current	(1,519)	(5,327)
Deferred turnaround costs
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	0	0
Deferred tax liabilities, noncurrent	(101,158)	(60,167)
Deferred taxes, net, noncurrent	(101,158)	(60,167)
Properties, plants and equipment (due primarily to tax in excess of book depreciation)
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	0	0
Deferred tax liabilities, noncurrent	(578,958)	(536,430)
Deferred taxes, net, noncurrent	(578,958)	(536,430)
Postretirement Benefit Costs [Member]
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current		0
Deferred tax assets, noncurrent	0	15,628
Deferred tax liabilities, current		(563)
Deferred tax liabilities, noncurrent	(8,071)	0
Deferred taxes, net, current		(563)
Deferred taxes, net, noncurrent	(8,071)	15,628
Net operating loss and tax credit carryforwards
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	24,086	21,863
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, noncurrent	24,086	21,863
Investment in HEP
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	0	0
Deferred tax liabilities, noncurrent	(29,771)	(15,915)
Deferred taxes, net, noncurrent	(29,771)	(15,915)
Debt fair value premiums
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent		8,820
Deferred tax liabilities, noncurrent		0
Deferred taxes, net, noncurrent		8,820
Other
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	10,858	6,766
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, noncurrent	$ 10,858	$ 6,766