REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 11,121,605	$ 16,312,525	$ 12,317,380
Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	10,553,945	15,529,045	12,091,398
Operating Segments | Total North America
Disaggregation of Revenue [Line Items]
Net sales	7,516,798	12,641,592	8,891,319
Operating Segments | North American Towable
Disaggregation of Revenue [Line Items]
Net sales	4,202,628	8,661,945	6,221,928
Operating Segments | North American Motorized
Disaggregation of Revenue [Line Items]
Net sales	3,314,170	3,979,647	2,669,391
Operating Segments | European
Disaggregation of Revenue [Line Items]
Net sales	3,037,147	2,887,453	3,200,079
Operating Segments | Travel Trailers and Other | North American Towable
Disaggregation of Revenue [Line Items]
Net sales	2,587,686	5,430,526	3,791,235
Operating Segments | Fifth Wheels | North American Towable
Disaggregation of Revenue [Line Items]
Net sales	1,614,942	3,231,419	2,430,693
Operating Segments | Class A | North American Motorized
Disaggregation of Revenue [Line Items]
Net sales	1,066,617	1,779,295	1,052,982
Operating Segments | Class C | North American Motorized
Disaggregation of Revenue [Line Items]
Net sales	1,536,398	1,408,470	1,266,624
Operating Segments | Class B | North American Motorized
Disaggregation of Revenue [Line Items]
Net sales	711,155	791,882	349,785
Operating Segments | Motorcaravan | European
Disaggregation of Revenue [Line Items]
Net sales	1,409,137	1,457,226	1,779,906
Operating Segments | Campervan | European
Disaggregation of Revenue [Line Items]
Net sales	987,623	750,310	779,755
Operating Segments | Caravan | European
Disaggregation of Revenue [Line Items]
Net sales	358,415	365,902	292,708
Operating Segments | Other RV-related | European
Disaggregation of Revenue [Line Items]
Net sales	281,972	314,015	347,710
Other
Disaggregation of Revenue [Line Items]
Net sales	777,639	1,225,824	373,174
Intercompany eliminations
Disaggregation of Revenue [Line Items]
Net sales	$ (209,979)	$ (442,344)	$ (147,192)