Cover Page - shares	9 Months Ended
	Sep. 28, 2025	Nov. 04, 2025
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 28, 2025
Document Transition Report	false
Entity File Number	001-39599
Entity Registrant Name	HOLLEY INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1727560
Entity Address, Address Line One	2445 Nashville Road, Suite B1
Entity Address, City or Town	Bowling Green
Entity Address, State or Province	KY
Entity Address, Postal Zip Code	42101
City Area Code	270
Local Phone Number	782-2900
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		120,509,897
Entity Central Index Key	0001822928
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Fiscal Year Focus	2025
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.0001
Trading Symbol	HLLY
Security Exchange Name	NYSE
Warrants
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase common stock
Trading Symbol	HLLY WS
Security Exchange Name	NYSE