Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Income Statement [Abstract]
Net sales	$ 16,312,525	$ 12,317,380	$ 8,167,933
Cost of products sold	13,506,495	10,422,407	7,049,726
Gross profit	2,806,030	1,894,973	1,118,207
Selling, general and administrative expenses	1,116,462	869,916	634,119
Amortization of intangible assets	156,946	117,183	97,234
Impairment charges	0	0	10,057
Interest income	1,130	797	3,116
Interest expense	91,222	94,342	107,322
Other income, net	17,334	30,252	305
Income before income taxes	1,459,864	844,581	272,896
Income taxes	321,621	183,711	51,512
Net income	1,138,243	660,870	221,384
Less: Net income (loss) attributable to non-controlling interests	439	998	(1,590)
Net income attributable to THOR Industries, Inc.	$ 1,137,804	$ 659,872	$ 222,974
Weighted-average common shares outstanding:
Basic (in shares)	55,034,653	55,333,959	55,172,694
Diluted (in shares)	55,264,046	55,687,253	55,397,376
Earnings per common share:
Basic (in dollars per share)	$ 20.67	$ 11.93	$ 4.04
Diluted (in dollars per share)	$ 20.59	$ 11.85	$ 4.02
Comprehensive income:
Net income	$ 1,138,243	$ 660,870	$ 221,384
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss), net of tax	(239,038)	7,723	92,735
Unrealized gain (loss) on derivatives, net of tax	9,330	10,168	(9,351)
Other income (loss), net of tax	2,047	(180)	352
Total other comprehensive income (loss), net of tax	(227,661)	17,711	83,736
Total comprehensive income	910,582	678,581	305,120
Comprehensive income (loss) attributable to non-controlling interest	(994)	1,081	(1,851)
Comprehensive income attributable to THOR Industries, Inc.	$ 911,576	$ 677,500	$ 306,971