Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 2,346,635	$ 3,875,018	$ 5,454,719	$ 7,833,242
Operating segments | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	2,215,272	3,685,624	5,160,899	7,484,483
Operating segments | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	1,568,334	2,961,894	4,009,659	6,127,756
Operating segments | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	646,938	723,730	1,151,240	1,356,727
Operating segments | North American Towables | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	829,751	1,985,088	2,147,557	4,225,922
Operating segments | Travel Trailers | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	527,829	1,250,579	1,350,698	2,660,203
Operating segments | Fifth Wheels | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	301,922	734,509	796,859	1,565,719
Operating segments | North American Motorized | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	738,583	976,806	1,862,102	1,901,834
Operating segments | Class A | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	244,128	429,894	648,706	839,393
Operating segments | Class C | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	334,911	361,565	825,698	721,571
Operating segments | Class B | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	159,544	185,347	387,698	340,870
Operating segments | Motorcaravan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	267,782	350,861	507,567	667,125
Operating segments | Campervan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	227,136	192,838	366,302	370,621
Operating segments | Caravan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	94,494	91,153	156,109	151,833
Operating segments | Other RV-related | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	57,526	88,878	121,262	167,148
Other, net
Disaggregation of Revenue [Line Items]
Net sales	164,859	294,146	397,507	551,976
Intercompany eliminations
Disaggregation of Revenue [Line Items]
Net sales	$ (33,496)	$ (104,752)	$ (103,687)	$ (203,217)