Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 2,928,820	$ 4,657,517	$ 8,383,539	$ 12,490,759
Operating segments | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	2,787,101	4,417,184	7,948,000	11,901,667
Operating segments | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	1,920,350	3,693,182	5,930,009	9,820,938
Operating segments | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	866,751	724,002	2,017,991	2,080,729
Operating segments | North American Towables | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	1,124,410	2,640,137	3,271,967	6,866,059
Operating segments | Travel Trailers | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	679,753	1,655,846	2,030,451	4,316,049
Operating segments | Fifth Wheels | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	444,657	984,291	1,241,516	2,550,010
Operating segments | North American Motorized | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	795,940	1,053,045	2,658,042	2,954,879
Operating segments | Class A | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	238,972	474,674	887,678	1,314,067
Operating segments | Class C | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	390,839	335,444	1,216,537	1,057,015
Operating segments | Class B | North America | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	166,129	242,927	553,827	583,797
Operating segments | Motorcaravan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	394,359	389,914	901,926	1,057,039
Operating segments | Campervan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	282,415	150,157	648,717	520,778
Operating segments | Caravan | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	116,412	114,772	272,521	266,605
Operating segments | Other RV-related | Europe | Recreational vehicles
Disaggregation of Revenue [Line Items]
Net sales	73,565	69,159	194,827	236,307
Other, net
Disaggregation of Revenue [Line Items]
Net sales	201,164	383,170	598,671	935,146
Intercompany eliminations
Disaggregation of Revenue [Line Items]
Net sales	$ (59,445)	$ (142,837)	$ (163,132)	$ (346,054)