Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Sales and other revenues	$ 2,714,638	$ 3,701,912	$ 4,733,362	$ 6,708,538
Depreciation and amortization	90,423	87,803	178,303	167,815
Income (loss) from operations	(420,542)	589,832	(336,944)	978,454
Capital expenditures	140,472	144,294	290,045	316,913
Cash, cash equivalents, and total investments in marketable securities	533,318		533,318		$ 210,552
Total assets	8,659,717		8,659,717		8,388,299
Long-term debt	1,678,123		1,678,123		1,040,040
Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	2,699,022	3,686,493	4,698,609	6,675,773
Depreciation and amortization	72,026	70,435	140,904	133,710
Income (loss) from operations	(438,174)	576,313	(383,174)	950,214
Capital expenditures	124,282	121,600	253,300	238,067
Cash, cash equivalents, and total investments in marketable securities	800		800		91
Total assets	6,627,438		6,627,438		6,831,235
Long-term debt	0		0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	94,896	83,479	196,906	173,235
Depreciation and amortization	15,305	14,660	31,334	28,950
Income (loss) from operations	49,474	40,834	105,541	85,044
Capital expenditures	14,794	18,116	32,667	69,843
Cash, cash equivalents, and total investments in marketable securities	4,882		4,882		15,013
Total assets	1,652,772		1,652,772		1,578,399
Long-term debt	1,083,136		1,083,136		1,008,752
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	47	151	157	369
Depreciation and amortization	3,299	2,915	6,479	5,569
Income (loss) from operations	(31,197)	(26,739)	(58,052)	(55,688)
Capital expenditures	1,396	4,578	4,078	9,003
Cash, cash equivalents, and total investments in marketable securities	527,636		527,636		195,448
Total assets	682,211		682,211		289,225
Long-term debt	594,987		594,987		31,288
Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(79,327)	(68,211)	(162,310)	(140,839)
Depreciation and amortization	(207)	(207)	(414)	(414)
Income (loss) from operations	(645)	(576)	(1,259)	(1,116)
Capital expenditures	0	$ 0	0	$ 0
Cash, cash equivalents, and total investments in marketable securities	0		0		0
Total assets	(302,704)		(302,704)		(310,560)
Long-term debt	$ 0		$ 0		$ 0