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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Apr. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss) | Components of accumulated other comprehensive income (loss), on an after-tax basis where applicable, were as follows:
| As of April 30, 2019 |  | As of October 31, 2018
| (in thousands)
Cumulative currency translation adjustments | $ | (87,233 | ) |  | $ | (89,289 | )
Unrealized gain (loss) on derivative instruments, net of taxes | (9,487 | ) |  | (23,888 | )
Total accumulated other comprehensive income (loss) | $ | (96,720 | ) |  | $ | (113,177 | )
Effect of Amounts Reclassified out of Each Component of Accumulated Other Comprehensive Income (Loss) into Net Income | The effect of amounts reclassified out of each component of accumulated other comprehensive income (loss) (AOCI) into net income was as follows:
| Three Months Ended April 30, |  | Six Months Ended April 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
| (in thousands)
Reclassifications from AOCI to unaudited condensed consolidated statement of operations: |  |  |  |  |  |  |
Gain (loss) on cash flow hedges, net of taxes |  |  |  |  |  |  |
Revenues | $ | 199 |  |  | $ | (169 | ) |  | $ | 363 |  |  | $ | 1,498 |
Operating expenses | (4,211 | ) |  | 5,711 |  |  | (8,850 | ) |  | 9,350 |
Total reclassifications into net income | $ | (4,012 | ) |  | $ | 5,542 |  |  | $ | (8,487 | ) |  | $ | 10,848 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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