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Liabilities and Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2021 | Jul. 31, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 15,151 | $ (1,977) | $ 15,151 | $ 36,446
2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Employee related restructuring liabilities | 6,800 |  | 6,800 |
2021 Restructuring Plan | Severance and Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 15,100 |  | 15,100 |
Cash payments | 8,300 |  | 8,300 |
Minimum | 2021 Restructuring Plan | Severance, Termination, and Retirement Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected cost | 42,000 |  | 42,000 |
Maximum | 2021 Restructuring Plan | Severance, Termination, and Retirement Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected cost | $ 53,000 |  | $ 53,000 |

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