DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of derivative instruments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ 551	$ 289	$ 547	$ 19
Designated as Hedging Instrument \| Foreign Exchange Forward \| Intercompany sales/purchases
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	551	289	547	19
Amount of Gain (Loss) Reclassified from Other Comprehensive Income (Loss)	30	48	110	36
Designated as Hedging Instrument \| Foreign Exchange Forward \| Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	64	74	89	72
Not Designated as Hedging Instrument \| Foreign Exchange Forward \| Other Income And Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Operations	$ 970	$ 345	$ 1,126	$ 111

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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