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INCOME TAXES - Components of Total Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands | Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2019 | Jul. 31, 2018
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Income Tax Disclosure [Abstract] |  |  |  |
Unrecognized tax benefits | $ 17,025 | $ 14,238 | $ 13,848 | $ 13,004
Reduction to unrecognized tax benefits which offset tax credit and loss carryforwards | (725) | (809) |  |
Accrued interest and penalties | 2,967 | 2,516 |  |
Total unrecognized tax benefits | 19,267 | 15,945 |  |
Short-term, included in “Income and other taxes” | 3,423 | 3,180 |  |
Long-term | 15,844 | 12,765 |  |
Total unrecognized tax benefits | $ 19,267 | $ 15,945 |  |

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