Cover Page - shares	3 Months Ended
	Oct. 31, 2022	Nov. 30, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Oct. 31, 2022
Document Transition Report	false
Entity File Number	001-09235
Entity Registrant Name	THOR INDUSTRIES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	93-0768752
Entity Address, Address Line One	601 E. Beardsley Ave.
Entity Address, City or Town	Elkhart
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	46514
City Area Code	(574)
Local Phone Number	970-7460
Title of 12(b) Security	Common stock (Par value $0.10 Per Share)
Trading Symbol	THO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		53,518,735
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000730263
Current Fiscal Year End Date	--07-31