Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended
	Jan. 31, 2024 USD ($) MW	Oct. 31, 2023 USD ($)
Commitments And Contingencies [Line Items]
Derivative gain, net | $	$ (1.9)
Recorded unconditional purchase obligation | $	95.4
Derivative asset | $	$ 2.3	$ 4.1
CT-RFP 2 Derby 14.9 Mega Watt Project
Commitments And Contingencies [Line Items]
Capacity Of Plant | MW	14.9
Tulare Biomart 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	18 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	14.0
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