Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sales and other revenues	$ 3,719,247	$ 2,847,270		$ 10,258,594	$ 7,580,632
Operating expenses	321,668	256,232		944,437	760,151
Depreciation and amortization	102,884	91,130		304,206	269,433
Income (loss) from operations	449,280	124,765		538,241	(212,179)
Income (loss) from equity method investments	5,072	3,767		10,965	10,155
Capital expenditures	56,067	97,432		193,117	387,477
Cash, cash equivalents, and total investments in marketable securities	630,742		$ 630,742	630,742		$ 1,134,727
Total assets	10,148,355		10,148,355	10,148,355		9,435,661
Long-term debt	2,236,514		2,236,514	2,236,514		2,235,137
2911 Petroleum Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	3,409,795	2,832,195		9,413,008	7,530,804
Operating expenses	249,478	227,079		751,858	680,591
Depreciation and amortization	74,312	69,565		219,636	210,466
Income (loss) from operations	408,739	120,985		445,087	(259,296)
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	31,152	74,173		131,016	284,755
Cash, cash equivalents, and total investments in marketable securities	10,713		10,713	10,713		49
Total assets	6,637,119		6,637,119	6,637,119		6,513,806
Long-term debt	0		0	0		0
Other Segments [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	298,137	0	809,600	809,643	0
Operating expenses	56,111	0		144,792	0
Depreciation and amortization	7,492	0		19,868	0
Income (loss) from operations	28,511	0		58,416	0
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	9,643	0		19,995	0
Cash, cash equivalents, and total investments in marketable securities	91,485		91,485	91,485		0
Total assets	1,282,396		1,282,396	1,282,396		0
Long-term debt	0		0	0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	110,364	92,611		325,141	289,517
Operating expenses	35,998	32,099		102,584	89,067
Depreciation and amortization	18,601	18,515		56,515	49,852
Income (loss) from operations	52,142	39,332		157,170	141,980
Income (loss) from equity method investments	5,072	3,767		10,965	10,155
Capital expenditures	10,151	20,730		30,675	96,115
Cash, cash equivalents, and total investments in marketable securities	7,476		7,476	7,476		3,657
Total assets	1,903,307		1,903,307	1,903,307		1,920,487
Long-term debt	1,245,066		1,245,066	1,245,066		1,243,912
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(325)	11		(283)	168
Operating expenses	817	1,390		3,152	3,797
Depreciation and amortization	2,686	3,257		8,808	9,736
Income (loss) from operations	(39,549)	(34,965)		(120,730)	(93,017)
Income (loss) from equity method investments	0	0		0	0
Capital expenditures	5,121	2,529		11,431	6,607
Cash, cash equivalents, and total investments in marketable securities	521,068		521,068	521,068		1,131,021
Total assets	610,341		610,341	610,341		1,306,169
Long-term debt	991,448		991,448	991,448		991,225
Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(98,724)	(77,547)		(288,915)	(239,857)
Operating expenses	(20,736)	(4,336)		(57,949)	(13,304)
Depreciation and amortization	(207)	(207)		(621)	(621)
Income (loss) from operations	(563)	(587)		(1,702)	(1,846)
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	(284,808)		(284,808)	(284,808)		(304,801)
Long-term debt	$ 0		$ 0	$ 0		$ 0