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v3.25.2

Commitments and Contingencies - Additional Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2025 USD ($) | Jul. 31, 2024 USD ($) | Jul. 31, 2025 USD ($) MW | Jul. 31, 2024 USD ($) | Oct. 31, 2024 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |
Derivative net gain (loss) | $ 1.0 | $ (0.9) | $ 2.0 | $ (5.1) |
Derivative asset | 1.4 |  | 1.4 |  | $ 1.2
Derivative liabilities | $ 2.1 |  | $ 2.1 |  | $ 4.0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Noncurrent |  | Other Liabilities, Noncurrent |  | Other Liabilities, Noncurrent
Recorded unconditional purchase obligation | $ 66.9 |  | $ 66.9 |  |
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 |  |
Derby Project 2.8 Mega Watt |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Capacity of plant | MW |  |  | 2.8 |  |
Toyota Project | Maximum |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Term for procuring fuel |  |  | 20 years |  |

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