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Summary of Significant Accounting Policies - Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net Amount |  |  | $ (1,562) | $ 733
Foreign currency translation adjustments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Pre-tax Amount | $ (828) | $ (1,042) | (1,779) | 330
Tax Expense | 0 | 0 | 0 | 0
Net Amount | (828) | (1,042) | (1,779) | 330
Other comprehensive gain before reclassifications |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Pre-tax Amount | 99 | 185 | 298 | 553
Tax Expense | (27) | (50) | (81) | (150)
Net Amount | 72 | 135 | 217 | 403
Other comprehensive loss |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Pre-tax Amount | (729) | (857) | (1,481) | 883
Tax Expense | (27) | (50) | (81) | (150)
Net Amount | $ (756) | $ (907) | $ (1,562) | $ 733

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