Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sales and other revenues	$ 3,458,864	$ 2,714,638		$ 6,539,347	$ 4,733,362
Operating expenses	315,652	251,336		622,769	503,919
Depreciation and amortization	105,282	90,423		201,322	178,303
Income (loss) from operations	121,685	(420,542)		88,961	(336,944)
Income (loss) from equity method investments	4,053	3,623		5,893	6,388
Capital expenditures	77,293	140,472		137,050	290,045
Cash, cash equivalents, and total investments in marketable securities	460,326		$ 460,326	460,326		$ 1,134,727
Total assets	9,643,035		9,643,035	9,643,035		9,435,661
Long-term debt	2,227,951		2,227,951	2,227,951		2,235,137
2911 Petroleum Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	3,141,137	2,699,022		6,003,213	4,698,609
Operating expenses	245,265	225,683		502,380	453,512
Depreciation and amortization	75,656	72,023		145,324	140,901
Income (loss) from operations	86,603	(436,214)		36,348	(380,281)
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	52,190	105,875		99,864	210,582
Cash, cash equivalents, and total investments in marketable securities	2,311		2,311	2,311		49
Total assets	6,354,911		6,354,911	6,354,911		6,513,806
Long-term debt	0		0	0		0
Other Segments [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	309,566	0	511,500	511,506	0
Operating expenses	52,652	0		88,681	0
Depreciation and amortization	7,302	0		12,376	0
Income (loss) from operations	17,511	0		29,905	0
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	8,757	0		10,352	0
Cash, cash equivalents, and total investments in marketable securities	68,346		68,346	68,346		0
Total assets	1,194,478		1,194,478	1,194,478		0
Long-term debt	0		0	0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	109,143	94,896		214,777	196,906
Operating expenses	34,097	29,212		66,586	56,968
Depreciation and amortization	19,541	15,308		37,914	31,337
Income (loss) from operations	52,890	47,514		105,028	102,648
Income (loss) from equity method investments	4,053	3,623		5,893	6,388
Capital expenditures	12,259	33,201		20,524	75,385
Cash, cash equivalents, and total investments in marketable securities	16,339		16,339	16,339		3,657
Total assets	1,904,951		1,904,951	1,904,951		1,920,487
Long-term debt	1,236,739		1,236,739	1,236,739		1,243,912
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	15	47		42	157
Operating expenses	1,322	1,152		2,335	2,407
Depreciation and amortization	2,990	3,299		6,122	6,479
Income (loss) from operations	(34,746)	(31,197)		(81,181)	(58,052)
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	4,087	1,396		6,310	4,078
Cash, cash equivalents, and total investments in marketable securities	373,330		373,330	373,330		1,131,021
Total assets	471,367		471,367	471,367		1,306,169
Long-term debt	991,212		991,212	991,212		991,225
Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(100,997)	(79,327)		(190,191)	(162,310)
Operating expenses	(17,684)	(4,711)		(37,213)	(8,968)
Depreciation and amortization	(207)	(207)		(414)	(414)
Income (loss) from operations	(573)	(645)		(1,139)	(1,259)
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	0	$ 0		0	$ 0
Cash, cash equivalents, and total investments in marketable securities	0		0	0		0
Total assets	(282,672)		(282,672)	(282,672)		(304,801)
Long-term debt	$ 0		$ 0	$ 0		$ 0