CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Income Statement [Abstract]
Net sales	$ 3,958,224	$ 2,537,360
Cost of products sold	3,302,800	2,158,508
Gross profit	655,424	378,852
Selling, general and administrative expenses	295,883	181,763
Amortization of intangible assets	33,214	27,427
Interest income	193	318
Interest expense	20,913	24,276
Other income, net	7,235	615
Income before income taxes	312,842	146,319
Income tax provision	68,039	30,680
Net income	244,803	115,639
Less: Net income attributable to non-controlling interests	2,561	1,882
Net income attributable to THOR Industries, Inc.	$ 242,242	$ 113,757
Weighted-average common shares outstanding:
Basic (in shares)	55,422,854	55,238,164
Diluted (in shares)	55,790,712	55,554,682
Earnings per common share:
Basic (in dollars per share)	$ 4.37	$ 2.06
Diluted (in dollars per share)	$ 4.34	$ 2.05
Comprehensive income:
Net income	$ 244,803	$ 115,639
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(35,167)	(18,993)
Unrealized gain on derivatives, net of tax	2,355	3,332
Total other comprehensive income (loss), net of tax	(32,812)	(15,661)
Total Comprehensive income	211,991	99,978
Less: Comprehensive income attributable to non-controlling interests	2,401	1,995
Comprehensive income attributable to THOR Industries, Inc.	$ 209,590	$ 97,983