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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Mar. 09, 2020 | Jan. 20, 2018 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019
Related Party Agreement [Abstract] |  |  |  |  |  |
Revenue | [1] |  |  | $ 663,761 | $ 609,691 | $ 550,660
Accounts receivable |  |  |  | 174,447 | 134,470 |
Customer One [Member] |  |  |  |  |  |
Related Party Agreement [Abstract] |  |  |  |  |  |
Revenue |  |  |  | 111,000 | 96,400 | 87,000
Accounts receivable |  |  |  | $ 34,500 | 32,700 |
DEMA Associates, LLC [Member] |  |  |  |  |  |
Related Party Agreement [Abstract] |  |  |  |  |  |
Consulting agreement period |  |  |  | 4 years |  |
Annual cost of consulting contract |  | $ 100 | $ 400 |  |  |
Expenses incurred for goods or services provided by related party during the period |  |  |  | $ 100 | $ 200 | $ 400
[1] | This table disaggregates revenue by the location in which it was earned.

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