BUSINESS SEGMENTS - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 16,312,525	$ 12,317,380	$ 8,167,933
Income (loss) from continuing operations before income taxes, noncontrolling interest	1,459,864	844,581	272,896
Operating Segments
Segment Reporting Information [Line Items]
Net sales	15,529,045	12,091,398	8,015,971
Income (loss) from continuing operations before income taxes, noncontrolling interest	1,574,256	977,597	418,000
Operating Segments | Total North America
Segment Reporting Information [Line Items]
Net sales	12,641,592	8,891,319	5,530,580
Income (loss) from continuing operations before income taxes, noncontrolling interest	1,487,140	861,021	408,150
Operating Segments | North American Towables
Segment Reporting Information [Line Items]
Net sales	8,661,945	6,221,928	4,140,482
Income (loss) from continuing operations before income taxes, noncontrolling interest	1,050,536	658,964	336,207
Operating Segments | North American Motorized
Segment Reporting Information [Line Items]
Net sales	3,979,647	2,669,391	1,390,098
Income (loss) from continuing operations before income taxes, noncontrolling interest	436,604	202,057	71,943
Operating Segments | European
Segment Reporting Information [Line Items]
Net sales	2,887,453	3,200,079	2,485,391
Income (loss) from continuing operations before income taxes, noncontrolling interest	87,116	116,576	9,850
Other
Segment Reporting Information [Line Items]
Net sales	1,225,824	373,174	234,481
Income (loss) from continuing operations before income taxes, noncontrolling interest	110,798	57,674	27,751
Intercompany eliminations
Segment Reporting Information [Line Items]
Net sales	(442,344)	(147,192)	(82,519)
Corporate
Segment Reporting Information [Line Items]
Income (loss) from continuing operations before income taxes, noncontrolling interest	$ (225,190)	$ (190,690)	$ (172,855)