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Restructuring and Impairment (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jun. 04, 2025 employee | Apr. 30, 2026 USD ($) | Apr. 30, 2025 USD ($) | Apr. 30, 2026 USD ($) | Apr. 30, 2025 USD ($) | Nov. 30, 2024
Restructuring and Impairment |  |  |  |  |  |
Percentage of global workforce reduced in restructuring |  |  |  |  |  | 17.00%
Number of employees reduction | employee | 122 |  |  |  |  |
Percentage of workforce reduced | 22.00% |  |  |  |  |
Restructuring expense relating to eliminated positions |  |  | $ 6 |  | $ 1,542 |
Impairment expense |  | $ 42,567 |  | $ 42,567 |  |
Impairment expense related to project assets |  | 41,500 | $ 0 |  | $ 0 |
Groton Project |  |  |  |  |  |
Restructuring and Impairment |  |  |  |  |  |
Impairment of inventory |  | $ 1,100 |  |  |  |

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