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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables) | 6 Months Ended
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Apr. 30, 2021
Schedule of Fair Value of Derivative Instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | April 30, 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 | ​ | $ | 192 | ​ | Derivative assets | ​ | $ | 495 | ​
Foreign exchange forward contracts | ​ | Derivative liabilities | ​ | $ | 576 | ​ | Derivative liabilities | ​ | $ | 279 | ​
​ | ​ |  | ​ |  | ​ | ​ | ​ | ​ |  |  | ​
Not Designated as Hedging Instruments: | ​ |  | ​ |  | ​ | ​ | ​ | ​ | ​ |  | ​
Foreign exchange forward contracts | ​ | Derivative assets | ​ | $ | 218 | ​ | Derivative assets | ​ | $ | 473 | ​
Foreign exchange forward contracts | ​ | Derivative liabilities | ​ | $ | 352 | ​ | Derivative liabilities | ​ | $ | 593 | ​
Schedule of derivative instruments not designated as hedging instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Location of Gain | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | (Loss) Recognized | ​ | Amount of Gain (Loss)
Derivatives |  | in Operations | ​ | Recognized in Operations
​ | ​ | ​ | ​ | Three Months Ended
​ | ​ | ​ | ​ | April 30,
​ | ​ | ​ |  | 2021 |  | 2020
Not Designated as Hedging Instruments: |  |  |  | ​ |  |  | ​ | ​
Foreign exchange forward contracts |  | Other expense, net | ​ | $ | (590) |  | $ | 970
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Location of Gain | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | (Loss) Recognized | ​ | Amount of Gain (Loss) | ​
Derivatives | ​ | in Operations | ​ | Recognized in Operations | ​
​ | ​ | ​ | ​ | Six Months Ended | ​
​ | ​ | ​ | ​ | April 30, | ​
Derivatives |  | ​ |  | 2021 |  | 2020 |
Not Designated as Hedging Instruments: |  |  |  | ​ |  |  | ​ | ​ |
Foreign exchange forward contracts |  | Other expense, net | ​ | $ | (1,403) |  | $ | 1,126 |
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 loss, net of tax, for the three months ended April 30, 2021 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Foreign Currency | ​ | Cash Flow | ​ | ​ | ​
​ |  | Translation |  | Hedges |  | Total
Balance, January 31, 2021 | ​ | $ | 111 |  | $ | 150 | ​ | $ | 261
Other comprehensive income (loss) before reclassifications | ​ |  | 122 | ​ |  | (75) | ​ |  | 47
Reclassifications | ​ |  | — | ​ |  | (340) | ​ |  | (340)
Balance, April 30, 2021 | ​ | $ | 233 |  | $ | (265) | ​ | $ | (32)
The following table presents the changes in the components of Accumulated other comprehensive loss, net of tax, for the six months ended April 30, 2021 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Foreign | ​ | Cash | ​ | ​ | ​
​ | ​ | Currency | ​ | Flow | ​ | ​ | ​
​ |  | Translation |  | Hedges |  | Total
Balance, October 31, 2020 | ​ | $ | (4,073) |  | $ | 1,083 | ​ | $ | (2,990)
Other comprehensive income (loss) before reclassifications | ​ |  | 4,306 | ​ |  | (629) | ​ |  | 3,677
Reclassifications | ​ |  | — | ​ |  | (719) | ​ |  | (719)
Balance, April 30, 2021 | ​ | $ | 233 |  | $ | (265) | ​ | $ | (32)
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
​ | ​ | April 30, | ​ | ​ | ​ | April 30,
​ |  | 2021 |  | 2020 |  | ​ |  | 2021 |  | 2020
Designated as Hedging Instruments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Effective portion) |  | ​ |  | ​ | ​ | ​ | ​ |  | ​ | ​ |  |  | ​ | ​
Foreign exchange forward contracts – Intercompany sales/purchases | ​ | $ | (75) | ​ | $ | 551 | ​ | Cost of sales and service | ​ | $ | 340 |  | $ | 30
Foreign exchange forward contract – Net investment | ​ | $ | 30 | ​ | $ | 64 | ​ |  | ​ |  |  |  |  |
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Location of Gain | ​ | Amount of Gain | ​
​ | ​ | Amount of Gain (Loss) | ​ | (Loss) Reclassified | ​ | (Loss) Reclassified | ​
​ | ​ | Recognized in Other | ​ | from Other | ​ | from Other | ​
​ | ​ | Comprehensive | ​ | Comprehensive | ​ | Comprehensive | ​
​ | ​ | Income (Loss) | ​ | Income (Loss) | ​ | Income (Loss) | ​
​ | ​ | Six Months Ended | ​ | ​ | ​ | Six Months Ended | ​
​ | ​ | April 30, | ​ | ​ | ​ | April 30, | ​
Derivatives |  | 2021 |  | 2020 |  | ​ |  | 2021 |  | 2020 |
Designated as Hedging Instruments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Effective Portion) |  | ​ |  | ​ | ​ | ​ | ​ |  | ​ | ​ |  |  | ​ | ​ |
Foreign exchange forward contracts – Intercompany sales/purchases | ​ | $ | (629) | ​ | $ | 547 | ​ | Cost of sales and service | ​ | $ | 719 |  | $ | 110 | ​
Foreign exchange forward contract – Net investment | ​ | $ | (80) | ​ | $ | 89 | ​ |  | ​ |  |  |  |  |  | ​

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