Income Taxes (Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	$ 42,308	$ 66,498
Deferred tax assets, noncurrent	78,750	89,142
Deferred tax assets, gross	121,058	155,640
Deferred tax liabilities, current	(187,524)	(242,181)
Deferred tax liabilities, noncurrent	(615,420)	(552,863)
Deferred tax liabilities, gross	(802,944)	(795,044)
Deferred taxes, net, current	(145,216)	(175,683)
Deferred taxes, net, noncurrent	(536,670)	(463,721)
Deferred taxes, net	(681,886)	(639,404)
Accrued employee benefits
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	13,285	22,791
Deferred tax liabilities, current	0	0
Deferred taxes, net, current	13,285	22,791
Accrued post-retirement benefits
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0	4,012
Deferred tax assets, noncurrent	15,628	41,873
Deferred tax liabilities, current	(563)	0
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, current	(563)	4,012
Deferred taxes, net, noncurrent	15,628	41,873
Accrued environmental costs
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	5,096	2,253
Deferred tax assets, noncurrent	18,963	4,651
Deferred tax liabilities, current	0	0
Deferred tax liabilities, noncurrent	0	0
Deferred taxes, net, current	5,096	2,253
Deferred taxes, net, noncurrent	18,963	4,651
Hedging instruments
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	23,927
Deferred tax assets, noncurrent	3,802
Deferred tax liabilities, current	0
Deferred tax liabilities, noncurrent	0
Deferred taxes, net, current	23,927
Deferred taxes, net, noncurrent	3,802
Inventory differences
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0	0
Deferred tax liabilities, current	(181,634)	(161,428)
Deferred taxes, net, current	(181,634)	(161,428)
Deferred turnaround costs
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current		0
Deferred tax assets, noncurrent	0	0
Deferred tax liabilities, current		(356)
Deferred tax liabilities, noncurrent	(60,167)	(22,971)
Deferred taxes, net, current		(356)
Deferred taxes, net, noncurrent	(60,167)	(22,971)
Net operating loss and tax credit carryforwards
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	21,863
Deferred tax liabilities, noncurrent	0
Deferred taxes, net, noncurrent	21,863
Prepayments and other
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, current	0	37,442
Deferred tax liabilities, current	(5,327)	(80,397)
Deferred taxes, net, current	(5,327)	(42,955)
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	(539,338)	(511,788)
Deferred taxes, net, noncurrent	(539,338)	(511,788)
Investment in HEP
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	0	0
Deferred tax liabilities, noncurrent	(15,915)	(13,389)
Deferred taxes, net, noncurrent	(15,915)	(13,389)
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
Contingent liabilities
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	2,908
Deferred tax liabilities, noncurrent	0
Deferred taxes, net, noncurrent	2,908
Other
Deferred Income Taxes Assets Liabilities [Line Items]
Deferred tax assets, noncurrent	6,766	42,618
Deferred tax liabilities, noncurrent	0	(4,715)
Deferred taxes, net, noncurrent	$ 6,766	$ 37,903