Equity (Changes To Equity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Noncontrolling interest	$ 628,181		$ 628,181		$ 620,591
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	5,242,084		5,242,084		5,301,985
Balance at December 31, 2016			4,681,394
Net income (loss)	74,073	$ (392,470)	36,291	$ (349,080)
Dividends			(117,754)
Distributions to noncontrolling interest holders			(53,776)
Other comprehensive income (loss), net of tax	10,594	$ 10,334	8,156	9,648
Allocated equity on common unit issuances, net of tax			46,321
Stock Issued During Period, Value, Acquisitions			5,056
Equity-based compensation			16,557
Purchase of treasury stock			(274)
Purchase of units for incentive grants - HEP			(35)
Other			(443)
Balance at June 30, 2017	$ 4,613,903		$ 4,613,903
Shares Paid for Tax Withholding for Share Based Compensation			9,349
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	1,000,000,000		1,000,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 178,800		$ 178,800
Holly Corporation Stockholders' Equity [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2016			4,681,394
Net income (loss)			12,299
Dividends			(117,754)
Distributions to noncontrolling interest holders			0
Other comprehensive income (loss), net of tax			8,173
Allocated equity on common unit issuances, net of tax			9,598
Stock Issued During Period, Value, Acquisitions			5,056
Equity-based compensation			15,411
Purchase of treasury stock			(274)	0
Purchase of units for incentive grants - HEP			0
Other			0
Balance at June 30, 2017	4,613,903		4,613,903
Noncontrolling Interest [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Noncontrolling interest	$ 628,181		628,181		$ 620,591
Net income (loss)			23,992
Dividends			0
Distributions to noncontrolling interest holders			(53,776)
Other comprehensive income (loss), net of tax			(17)
Allocated equity on common unit issuances, net of tax			36,723
Stock Issued During Period, Value, Acquisitions			0
Equity-based compensation			1,146
Purchase of treasury stock			0
Purchase of units for incentive grants - HEP			(35)
Other			(443)
HEP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Distributions to noncontrolling interest holders			$ (53,776)	$ (43,840)