The total amount of guaranteed energy savings.

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Loss Contingency, Number Of Certified Subclasses

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The amount of bonds, as of the end of the accounting period, issued by a second party, guaranteeing the fulfillment of the Company's obligations to a third party. In the event that the Company does not meet its obligations, the third party will recover its losses via the bond.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of loss contingency liability.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Commitments and Contingencies - Narrative (Details)	Sep. 20, 2018 subclass	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Letters of credit		$ 153,100,000
Surety bonds		$ 632,900,000
Subsidiary ownership interest percentage		33.00%
Minimum
Loss Contingencies [Line Items]
Subsidiary ownership interest percentage		20.00%
Estimate of reasonably possible loss		$ 0
Maximum
Loss Contingencies [Line Items]
Subsidiary ownership interest percentage		50.00%
Estimate of reasonably possible loss		$ 4,000,000
Bucio
Loss Contingencies [Line Items]
Number of certified subclasses \| subclass	4
Energy Savings Contracts
Loss Contingencies [Line Items]
Guarantee obligation		182,800,000	$ 174,800,000
Performance Guarantee \| Joint Venture
Loss Contingencies [Line Items]
Total guarantee		30,000,000
Pending Litigation
Loss Contingencies [Line Items]
Loss contingency amount accrued for probable losses		$ 14,700,000