ACQUISITIONS - Schedule of Unaudited Pro Forma Information (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Jul. 31, 2022 USD ($) $ / shares
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Net sales | $	$ 16,359,983
Net income attributable to THOR Industries, Inc. | $	$ 1,144,617
Basic earnings per common share (in dollars per share) | $ / shares	$ 20.80
Diluted earnings per common share (in dollars per share) | $ / shares	$ 20.71