Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sales and other revenues	$ 3,080,483	$ 2,018,724
Operating expenses	307,117	252,583
Depreciation and amortization	96,040	87,880
Income (loss) from operations	(32,724)	83,598
Income (Loss) from Equity Method Investments	1,840	2,765
Capital expenditures	59,757	149,573
Cash, cash equivalents, and total investments in marketable securities	129,512		$ 1,134,727
Total assets	9,542,352		9,435,661
Long-term debt	2,231,542		2,235,137
2911 Petroleum Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	2,862,076	1,999,587
Operating expenses	257,115	228,762
Depreciation and amortization	69,668	68,878
Income (loss) from operations	(50,255)	55,000
Income (Loss) from Equity Method Investments	0	0
Capital expenditures	47,674	104,707
Cash, cash equivalents, and total investments in marketable securities	90		49
Total assets	6,514,854		6,513,806
Long-term debt	0		0
Other Segments [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	201,940	0
Operating expenses	36,029	0
Depreciation and amortization	5,074	0
Income (loss) from operations	12,394	0
Income (Loss) from Equity Method Investments	0	0
Capital expenditures	1,595	0
Cash, cash equivalents, and total investments in marketable securities	56,799		0
Total assets	1,152,870		0
Long-term debt	0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	105,634	102,010
Operating expenses	32,489	26,823
Depreciation and amortization	18,373	16,029
Income (loss) from operations	52,138	56,067
Income (Loss) from Equity Method Investments	1,840	2,765
Capital expenditures	8,265	42,184
Cash, cash equivalents, and total investments in marketable securities	7,007		3,657
Total assets	1,906,791		1,920,487
Long-term debt	1,240,565		1,243,912
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	27	110
Operating expenses	1,013	1,255
Depreciation and amortization	3,132	3,180
Income (loss) from operations	(46,435)	(26,855)
Income (Loss) from Equity Method Investments	0	0
Capital expenditures	2,223	2,682
Cash, cash equivalents, and total investments in marketable securities	65,616		1,131,021
Total assets	252,549		1,306,169
Long-term debt	990,977		991,225
Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(89,194)	(82,983)
Operating expenses	(19,529)	(4,257)
Depreciation and amortization	(207)	(207)
Income (loss) from operations	(566)	(614)
Income (Loss) from Equity Method Investments	0	0
Capital expenditures	0	$ 0
Cash, cash equivalents, and total investments in marketable securities	0		0
Total assets	(284,712)		(304,801)
Long-term debt	$ 0		$ 0