Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023
Income Statement [Abstract]
Net sales	$ 9,579,490	$ 10,043,408	$ 11,121,605
Cost of products sold	8,238,849	8,591,446	9,525,252
Gross profit	1,340,641	1,451,962	1,596,353
Selling, general and administrative expenses	922,554	895,531	870,054
Amortization of intangible assets	119,027	132,544	140,808
Interest expense, net	48,441	88,666	97,447
Other income, net	45,572	13,623	11,309
Income before income taxes	296,191	348,844	499,353
Income taxes	39,600	83,444	125,113
Net income	256,591	265,400	374,240
Less: Net income (loss) attributable to non-controlling interests	(1,968)	92	(31)
Net income attributable to THOR Industries, Inc.	$ 258,559	$ 265,308	$ 374,271
Weighted-average common shares outstanding:
Basic (in shares)	53,085,577	53,248,488	53,478,310
Diluted (in shares)	53,400,306	53,687,377	53,857,143
Earnings per common share:
Basic (in dollars per share)	$ 4.87	$ 4.98	$ 7.00
Diluted (in dollars per share)	$ 4.84	$ 4.94	$ 6.95
Comprehensive income:
Net income	$ 256,591	$ 265,400	$ 374,240
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss), net of tax	99,230	(25,925)	114,164
Unrealized (loss) on derivatives, net of tax	0	0	(675)
Other income (loss), net of tax	1,265	(86)	(807)
Total other comprehensive income (loss), net of tax	100,495	(26,011)	112,682
Total comprehensive income	357,086	239,389	486,922
Comprehensive (loss) attributable to non-controlling interest	(5,569)	(760)	(409)
Comprehensive income attributable to THOR Industries, Inc.	$ 362,655	$ 240,149	$ 487,331