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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables) | 3 Months Ended
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Jan. 31, 2021
Schedule of Fair Value of Derivative Instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 31, 2021 | ​ | October 31, 2020 | ​
​ | ​ | Balance Sheet | ​ | Fair | ​ | Balance Sheet | ​ | Fair | ​
Derivatives |  | Location |  | Value |  | Location |  | Value |
Designated as Hedging Instruments: | ​ |  | ​ | ​ |  | ​ |  | ​ | ​ |  | ​
Foreign exchange forward contracts | ​ | Derivative assets | ​ | $ | 275 | ​ | Derivative assets | ​ | $ | 495 | ​
Foreign exchange forward contracts | ​ | Derivative liabilities | ​ | $ | 750 | ​ | Derivative liabilities | ​ | $ | 279 | ​
​ | ​ |  | ​ |  | ​ | ​ | ​ | ​ |  |  | ​
Not Designated as Hedging Instruments: | ​ |  | ​ |  | ​ | ​ | ​ | ​ | ​ |  | ​
Foreign exchange forward contracts | ​ | Derivative assets | ​ | $ | 633 | ​ | Derivative assets | ​ | $ | 473 | ​
Foreign exchange forward contracts | ​ | Derivative liabilities | ​ | $ | 722 | ​ | Derivative liabilities | ​ | $ | 593 | ​
Schedule of changes in the components of Accumulated other comprehensive loss, net of tax | The following table presents the changes in the components of Accumulated other comprehensive income (loss), net of tax, for the three months ended January 31, 2021 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Foreign Currency | ​ | Cash Flow | ​ | ​ | ​
​ |  | Translation |  | Hedges |  | Total
Balance, October 31, 2020 | ​ | $ | (4,073) |  | $ | 1,083 | ​ | $ | (2,990)
Other comprehensive income (loss) before reclassifications | ​ |  | 4,184 | ​ |  | (554) | ​ |  | 3,630
Reclassifications | ​ |  | — | ​ |  | (379) | ​ |  | (379)
Balance, January 31, 2021 | ​ | $ | 111 |  | $ | 150 | ​ | $ | 261
Designated as Hedging Instrument |
Schedule of Effect of Derivative Instruments on the Balance Sheets, Statements of Changes in Shareholders' Equity and Statements of Operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Location of Gain | ​ | Amount of Gain
​ | ​ | Amount of Gain (Loss) | ​ | (Loss) Reclassified | ​ | (Loss) Reclassified
​ | ​ | Recognized in Other | ​ | from Other | ​ | from Other
​ | ​ | Comprehensive | ​ | Comprehensive | ​ | Comprehensive
Derivatives | ​ | Income (Loss) | ​ | Income (Loss) | ​ | Income (Loss)
​ | ​ | Three Months Ended | ​ | ​ | ​ | Three Months Ended
​ | ​ | January 31, | ​ | ​ | ​ | January 31,
​ |  | 2021 |  | 2020 |  | ​ |  | 2021 |  | 2020
Designated as Hedging Instruments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Effective portion) |  | ​ |  | ​ | ​ | ​ | ​ |  | ​ | ​ |  |  | ​ | ​
Foreign exchange forward contracts – Intercompany sales/purchases | ​ | $ | (554) | ​ | $ | (4) | ​ | Cost of sales and service | ​ | $ | 379 |  | $ | 80
Foreign exchange forward contract – Net investment | ​ | $ | (110) | ​ | $ | 25 | ​ |  | ​ |  |  |  |  |

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
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