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INTANGIBLE ASSETS AND GOODWILL - Summary of Components of Net Balance (Detail) - USD ($) $ in Thousands | Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2019
--- | --- | --- | ---
Goodwill [Line Items] |  |  |
Goodwill | $ 1,590,656 | $ 1,503,942 |
Accumulated impairment charges | (27,401) | (27,401) |
Net balance | 1,563,255 | 1,476,541 | $ 1,358,032
Other |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 122,708 | 104,826 |
Accumulated impairment charges | 0 | 0 |
Net balance | 122,708 | 104,826 | 42,871
North American Towables | Operating Segments |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 355,124 | 343,935 |
Accumulated impairment charges | (10,149) | (10,149) |
Net balance | 344,975 | 333,786 | 334,822
North American Motorized | Operating Segments |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 71,127 | 17,252 |
Accumulated impairment charges | (17,252) | (17,252) |
Net balance | 53,875 | 0 | 0
European | Operating Segments |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 1,041,697 | 1,037,929 |
Accumulated impairment charges | 0 | 0 |
Net balance | $ 1,041,697 | $ 1,037,929 | $ 980,339

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