Business Segments - Schedule of Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022	Jul. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 2,928,820	$ 4,657,517	$ 8,383,539	$ 12,490,759
Income (loss) from continuing operations before income taxes	155,451	462,407	367,440	1,121,502
Total assets	7,553,959		7,553,959		$ 7,408,132
Depreciation and amortization expense, total	68,151	71,646	202,826	212,494
Capital acquisitions	49,172	55,664	150,607	172,087
Operating segments | Recreational vehicles
Segment Reporting Information [Line Items]
Net sales	2,787,101	4,417,184	7,948,000	11,901,667
Income (loss) from continuing operations before income taxes	198,170	463,549	493,582	1,190,350
Total assets	5,932,636		5,932,636		5,729,587
Depreciation and amortization expense, total	53,142	55,038	155,955	170,191
Capital acquisitions	35,174	45,891	123,569	150,051
Operating segments | Recreational vehicles | North America
Segment Reporting Information [Line Items]
Net sales	1,920,350	3,693,182	5,930,009	9,820,938
Income (loss) from continuing operations before income taxes	125,769	442,990	415,634	1,178,102
Total assets	3,067,056		3,067,056		3,280,317
Depreciation and amortization expense, total	23,302	23,537	70,100	70,281
Capital acquisitions	19,285	29,718	86,609	79,651
Operating segments | Recreational vehicles | North America | North American Towables
Segment Reporting Information [Line Items]
Net sales	1,124,410	2,640,137	3,271,967	6,866,059
Income (loss) from continuing operations before income taxes	77,583	326,697	181,471	868,874
Total assets	1,629,231		1,629,231		2,040,841
Depreciation and amortization expense, total	15,188	16,149	45,653	48,764
Capital acquisitions	14,367	19,833	52,361	54,446
Operating segments | Recreational vehicles | North America | North American Motorized
Segment Reporting Information [Line Items]
Net sales	795,940	1,053,045	2,658,042	2,954,879
Income (loss) from continuing operations before income taxes	48,186	116,293	234,163	309,228
Total assets	1,437,825		1,437,825		1,239,476
Depreciation and amortization expense, total	8,114	7,388	24,447	21,517
Capital acquisitions	4,918	9,885	34,248	25,205
Operating segments | Recreational vehicles | Europe
Segment Reporting Information [Line Items]
Net sales	866,751	724,002	2,017,991	2,080,729
Income (loss) from continuing operations before income taxes	72,401	20,559	77,948	12,248
Total assets	2,865,580		2,865,580		2,449,270
Depreciation and amortization expense, total	29,840	31,501	85,855	99,910
Capital acquisitions	15,889	16,173	36,960	70,400
Other, net
Segment Reporting Information [Line Items]
Net sales	201,164	383,170	598,671	935,146
Income (loss) from continuing operations before income taxes	16,970	46,910	30,004	93,531
Total assets	1,094,611		1,094,611		1,272,829
Depreciation and amortization expense, total	14,563	16,177	45,549	41,014
Capital acquisitions	13,144	9,272	25,913	21,452
Corporate
Segment Reporting Information [Line Items]
Income (loss) from continuing operations before income taxes	(59,689)	(48,052)	(156,146)	(162,379)
Total assets	526,712		526,712		$ 405,716
Depreciation and amortization expense, total	446	431	1,322	1,289
Capital acquisitions	854	501	1,125	584
Intercompany eliminations
Segment Reporting Information [Line Items]
Net sales	$ (59,445)	$ (142,837)	$ (163,132)	$ (346,054)