Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income (loss)	$ 302,741	$ 23,345	$ 680,358	$ (420,348)
Other comprehensive income (loss):
Foreign currency translation adjustment	(6,636)	7,727	(10,411)	(2,149)
Change in fair value of cash flow hedging instruments	1,012	(2,094)	(17,030)	(7,329)
Reclassification adjustments to net income (loss) on settlement of cash flow hedging instruments	(52)	4,586	18,772	3,411
Net unrealized gain (loss) on hedging instruments	960	2,492	1,742	(3,918)
Net change in pension and other post-retirement benefit obligations	(930)	0	(2,792)	(42)
Other comprehensive income (loss) before income taxes	(6,606)	10,219	(11,461)	(6,109)
Income tax expense (benefit)	(1,413)	2,342	(2,459)	(1,437)
Other comprehensive income (loss)	(5,193)	7,877	(9,002)	(4,672)
Total comprehensive income (loss)	297,548	31,222	671,356	(425,020)
Less noncontrolling interest in comprehensive income	21,954	25,746	82,504	63,353
Comprehensive income (loss) attributable to HollyFrontier stockholders	275,594	5,476	588,852	(488,373)
Actuarial loss on pension plans
Other comprehensive income (loss):
Actuarial gain (loss) on plan	0	0	0	(45)
Plan gain reclassified to net income	(101)	0	(306)	0
Actuarial gain on post-retirement healthcare plans
Other comprehensive income (loss):
Actuarial gain (loss) on plan	0	0	0	3
Plan gain reclassified to net income	(838)	0	(2,513)	0
Retirement restoration plan
Other comprehensive income (loss):
Retirement restoration plan loss reclassified to net income	$ 9	$ 0	$ 27	$ 0