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Commitments and Contingencies - Additional Information (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2023 USD ($) MW | Oct. 31, 2024 USD ($) MW | Oct. 31, 2023 USD ($)
Commitments And Contingencies [Line Items] |  |  |
Derivative net gain (loss) |  | $ (6.9) | $ 4.1
Derivative liabilities | $ 0.0 | $ 4.0 | $ 0.0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent
Recorded unconditional purchase obligation |  | $ 90.8 |
Derivative asset | $ 4.1 | $ 1.2 | $ 4.1
CT-RFP 2 Derby 14.9 Mega Watt Project |  |  |
Commitments And Contingencies [Line Items] |  |  |
Capacity of plant | MW |  | 14.9 |
Tulare Biomat Project |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 20 years |
LIPA project |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 7 years |
LIPA project | Maximum |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 20 years |
Derby Project |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 6 years |
Derby Project | Maximum |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 20 years |
Derby Project 14.0 Mega Watt |  |  |
Commitments And Contingencies [Line Items] |  |  |
Capacity of plant | MW | 14 | 14 |
Derby Project 2.8 Mega Watt |  |  |
Commitments And Contingencies [Line Items] |  |  |
Capacity of plant | MW | 2.8 | 2.8 |
Toyota Project |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 2 years |
Toyota Project | Maximum |  |  |
Commitments And Contingencies [Line Items] |  |  |
Term for procuring fuel |  | 20 years |

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