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Commitments and Contingencies - Additional Information (Details)
$ in Millions
3 Months Ended
Jan. 31, 2025
USD ($)
MW
Jan. 31, 2024
USD ($)
Oct. 31, 2024
USD ($)
Commitments And Contingencies [Line Items]      
Derivative gain, net $ 1.8 $ 1.9  
Derivative asset 1.4   $ 1.2
Derivative liabilities $ 2.3   $ 4.0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Noncurrent   Other Liabilities, Noncurrent
Recorded unconditional purchase obligation $ 82.5    
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      
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