Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ (150,407)	$ 216,817	$ (443,693)	$ 493,303
Other comprehensive income (loss)
Foreign Currency Translation Adjustment	11,710	9,160	(9,876)	13,523
Change in fair value of cash flow hedging instruments	1,513	(693)	(5,235)	14,897
Reclassification adjustments to net income on settlement of cash flow hedging instruments	5,401	(5,321)	(1,175)	(6,963)
Net unrealized gain (loss) on hedging instruments	6,914	(6,014)	(6,410)	7,934
Post-retirement Healthcare Plan Gain (Loss)		72	(45)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		2	3
Net change in post-retirement benefit obligations	0	74	(42)	0
Other comprehensive income (loss) before income taxes	18,624	3,220	(16,328)	21,457
Income tax expense (benefit)	4,250	416	(3,779)	4,878
Other comprehensive (income) loss	14,374	2,804	(12,549)	16,579
Total comprehensive income	(136,033)	219,621	(456,242)	509,882
Less noncontrolling interest in comprehensive income	26,270	19,902	37,607	43,333
Comprehensive income attributable to HollyFrontier stockholders	$ (162,303)	$ 199,719	$ (493,849)	$ 466,549