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INTANGIBLE ASSETS AND GOODWILL - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2020 | Oct. 31, 2019 | Jul. 31, 2020 | Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2020
Intangible Assets And Goodwill [Line Items] |  |  |  |  |  |
Impairment charges |  |  |  | $ 0 | $ 0 | $ 10,057
Pre-tax, non-cash goodwill impairment charge |  | $ 0 | $ 0 | $ 0 | $ 0 |
North American Towables |  |  |  |  |  |
Intangible Assets And Goodwill [Line Items] |  |  |  |  |  |
Impairment charges | $ 10,057 |  |  |  |  |
Pre-tax, non-cash goodwill impairment charge | $ 1,036 |  |  |  |  |

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