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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Changes in components of accumulated other comprehensive loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Derivative [Line Items]
Beginning Balance	$ (8,348)		$ (8,933)
Other comprehensive income (loss) before reclassifications	4,612		5,307
Reclassifications	(158)	$ 39	(268)	$ 3
Ending Balance	(3,894)		(3,894)
Foreign Currency Translation
Derivative [Line Items]
Beginning Balance	(9,894)		(10,042)
Other comprehensive income (loss) before reclassifications	5,092		5,240
Ending Balance	(4,802)		(4,802)
Cash Flow Hedging
Derivative [Line Items]
Beginning Balance	1,546		1,109
Other comprehensive income (loss) before reclassifications	(480)		67
Reclassifications	(158)		(268)
Ending Balance	$ 908		$ 908

X

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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