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Other Income (Expense), net - Components of Other Income (Expense), Net (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2020 | Apr. 30, 2019
Other Income (Expense) |  |  |  |
Interest income | $ 879 | $ 1,927 | $ 2,357 | $ 3,491
Interest expense | (1,846) | (3,841) | (3,449) | (8,394)
Gain (loss) on assets related to deferred compensation plan | (18,460) | 16,226 | (5,987) | 20,515
Foreign currency exchange gain (loss) | 5,039 | 2,718 | 5,132 | 2,302
Other, net | (1,341) | 1,385 | (1,725) | 142
Total | $ (15,729) | $ 18,415 | $ (3,672) | $ 18,056

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