Business Segments - Schedule of Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022	Jul. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 2,346,635	$ 3,875,018	$ 5,454,719	$ 7,833,242
Income (loss) from continuing operations before income taxes	32,718	346,253	211,989	659,095
Total assets	7,311,960		7,311,960		$ 7,408,132
Depreciation and amortization expense, total	67,682	75,895	134,675	140,848
Capital acquisitions	47,345	75,407	101,435	116,423
Operating segments | Recreational vehicles
Segment Reporting Information [Line Items]
Net sales	2,215,272	3,685,624	5,160,899	7,484,483
Income (loss) from continuing operations before income taxes	66,440	389,597	295,412	726,801
Total assets	5,694,250		5,694,250		5,729,587
Depreciation and amortization expense, total	51,913	57,116	102,813	115,153
Capital acquisitions	39,237	67,595	88,395	104,160
Operating segments | Recreational vehicles | North America
Segment Reporting Information [Line Items]
Net sales	1,568,334	2,961,894	4,009,659	6,127,756
Income (loss) from continuing operations before income taxes	54,425	379,932	289,865	735,112
Total assets	2,991,377		2,991,377		3,280,317
Depreciation and amortization expense, total	23,200	23,420	46,798	46,744
Capital acquisitions	27,086	28,170	67,324	49,933
Operating segments | Recreational vehicles | North America | North American Towables
Segment Reporting Information [Line Items]
Net sales	829,751	1,985,088	2,147,557	4,225,922
Income (loss) from continuing operations before income taxes	(7,119)	275,895	103,888	542,177
Total assets	1,573,865		1,573,865		2,040,841
Depreciation and amortization expense, total	15,028	16,313	30,465	32,615
Capital acquisitions	16,820	21,479	37,994	34,613
Operating segments | Recreational vehicles | North America | North American Motorized
Segment Reporting Information [Line Items]
Net sales	738,583	976,806	1,862,102	1,901,834
Income (loss) from continuing operations before income taxes	61,544	104,037	185,977	192,935
Total assets	1,417,512		1,417,512		1,239,476
Depreciation and amortization expense, total	8,172	7,107	16,333	14,129
Capital acquisitions	10,266	6,691	29,330	15,320
Operating segments | Recreational vehicles | Europe
Segment Reporting Information [Line Items]
Net sales	646,938	723,730	1,151,240	1,356,727
Income (loss) from continuing operations before income taxes	12,015	9,665	5,547	(8,311)
Total assets	2,702,873		2,702,873		2,449,270
Depreciation and amortization expense, total	28,713	33,696	56,015	68,409
Capital acquisitions	12,151	39,425	21,071	54,227
Other, net
Segment Reporting Information [Line Items]
Net sales	164,859	294,146	397,507	551,976
Income (loss) from continuing operations before income taxes	8,289	23,092	13,034	46,621
Total assets	1,109,967		1,109,967		1,272,829
Depreciation and amortization expense, total	15,338	18,357	30,986	24,837
Capital acquisitions	7,957	7,763	12,769	12,180
Corporate
Segment Reporting Information [Line Items]
Income (loss) from continuing operations before income taxes	(42,011)	(66,436)	(96,457)	(114,327)
Total assets	507,743		507,743		$ 405,716
Depreciation and amortization expense, total	431	422	876	858
Capital acquisitions	151	49	271	83
Intercompany eliminations
Segment Reporting Information [Line Items]
Net sales	$ (33,496)	$ (104,752)	$ (103,687)	$ (203,217)