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Reserve for FreshRealm Note Receivable and Impairment of Investment (Detail) $ in Thousands, $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 31, 2020 USD ($) | Oct. 31, 2020 USD ($) | Oct. 31, 2020 MXN ($) | Oct. 31, 2020 MXN ($) | Oct. 31, 2019 USD ($)
Equity investment |  |  |  |  |
Accounts receivable |  | $ 63,668 |  |  | $ 63,423
FreshRealm |  |  |  |  |
Equity investment |  |  |  |  |
Impair investment in FreshRealm | $ 2,800 |  | $ 2.8 |  |
Loan write-off | 34,200 | 34,200 | 34.2 |  |
Interest receivable | 4,100 |  |  | $ 4.1 |
Accounts receivable | 300 | $ 716 |  | $ 0.3 | $ 1,493
Total impairment | 37,300 |  | 37.3 |  |
Discreet tax benefit | $ (9,500) |  | $ (9.5) |  |

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