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Leases
 12 Months Ended
Dec. 31, 2023
Leases [Abstract]  
Leases Leases
The Company’s lease portfolio is predominately operating leases for plant operations, storage facilities, and office space for employees. The Company presents operating lease and finance lease balances separately on the consolidated balance sheets. The Company’s finance leases relate to plant operations. The Company does not include options to extend leases in the lease term until they are reasonably certain to be exercised. The following table presents the Company's lease balances and their classification on the consolidated balance sheets:
For the year ended December 31, 2023
For the 2 months ended December 31, 2022
For the year ended October 31, 2022
For the year ended October 31, 2021
Finance lease
Amortization of ROU assets$— $— $— $— 
Interest on lease liabilities— — — — 
Total finance lease cost$—$—$—$—
Operating lease cost$9.7 $1.3 $6.3 $1.1 
Short-term lease cost— — — — 
Variable lease cost1.7 0.3 1.7 0.4 
Total lease cost$11.4$1.6$8.0$1.5
The weighted average remaining lease term of the Company's premises and equipment operating leases is 14.48, 16.11, 16.64 and 8.68 years for the year ended December 31, 2023, the two months ended December 31, 2022, the year ended October 31, 2022 and 2021, respectively. The weighted average remaining lease term of the Company's premises and equipment finance leases is 46.78 years for the year ended December 31, 2023.
The weighted average lease discount rate of the Company's premises and equipment operating leases is 7.69%, 7.12%, 7.07% and 5.99% for the year ended December 31, 2023, the two months ended December 31, 2022, the year ended October 31, 2022 and 2021 respectively. The weighted average lease discount rate of the Company's premises and equipment finance leases is 9.49% for the year ended December 31, 2023.

Supplemental Cash Flow Related DisclosuresFor the year ended December 31, 2023For the 2 months ended December 31, 2022For the year ended October 31, 2022For the year ended October 31, 2021
Cash paid for amounts related to lease liabilities:
Operating cash flows from operating leases$10.8 $1.4 $7.2 $1.3 
Operating cash flows from finance leases— — — — 
Financing cash flows from finance leases— — — — 
Recognition of ROU assets and lease liabilities for new operating leases$18.4 $1.4 $28.4 $16.4 
Recognition of ROU assets and lease liabilities for new finance leases2.2 — — — 
Maturities of lease liabilities were as follows:
Years ending December 31Operating LeasesFinance Leases
2024$7.2 $0.2 
20257.3 0.2 
20267.3 0.2 
20276.6 0.2 
20286.2 0.2 
Thereafter51.6 11.6 
Total future minimum lease payments$86.2 $12.6 
Imputed interest(25.6)(10.3)
Total lease liabilities$60.6 $2.3 
At December 31, 2023, none of the Company's executed leases that had not yet commenced will create significant rights or obligations in the future and sublease transactions are not material. Additionally, the Company had related party leases that were terminated effective December 31, 2021, refer to Note 13. There were no restrictions or covenants imposed by its leases.
Leases Leases
The Company’s lease portfolio is predominately operating leases for plant operations, storage facilities, and office space for employees. The Company presents operating lease and finance lease balances separately on the consolidated balance sheets. The Company’s finance leases relate to plant operations. The Company does not include options to extend leases in the lease term until they are reasonably certain to be exercised. The following table presents the Company's lease balances and their classification on the consolidated balance sheets:
For the year ended December 31, 2023
For the 2 months ended December 31, 2022
For the year ended October 31, 2022
For the year ended October 31, 2021
Finance lease
Amortization of ROU assets$— $— $— $— 
Interest on lease liabilities— — — — 
Total finance lease cost$—$—$—$—
Operating lease cost$9.7 $1.3 $6.3 $1.1 
Short-term lease cost— — — — 
Variable lease cost1.7 0.3 1.7 0.4 
Total lease cost$11.4$1.6$8.0$1.5
The weighted average remaining lease term of the Company's premises and equipment operating leases is 14.48, 16.11, 16.64 and 8.68 years for the year ended December 31, 2023, the two months ended December 31, 2022, the year ended October 31, 2022 and 2021, respectively. The weighted average remaining lease term of the Company's premises and equipment finance leases is 46.78 years for the year ended December 31, 2023.
The weighted average lease discount rate of the Company's premises and equipment operating leases is 7.69%, 7.12%, 7.07% and 5.99% for the year ended December 31, 2023, the two months ended December 31, 2022, the year ended October 31, 2022 and 2021 respectively. The weighted average lease discount rate of the Company's premises and equipment finance leases is 9.49% for the year ended December 31, 2023.

Supplemental Cash Flow Related DisclosuresFor the year ended December 31, 2023For the 2 months ended December 31, 2022For the year ended October 31, 2022For the year ended October 31, 2021
Cash paid for amounts related to lease liabilities:
Operating cash flows from operating leases$10.8 $1.4 $7.2 $1.3 
Operating cash flows from finance leases— — — — 
Financing cash flows from finance leases— — — — 
Recognition of ROU assets and lease liabilities for new operating leases$18.4 $1.4 $28.4 $16.4 
Recognition of ROU assets and lease liabilities for new finance leases2.2 — — — 
Maturities of lease liabilities were as follows:
Years ending December 31Operating LeasesFinance Leases
2024$7.2 $0.2 
20257.3 0.2 
20267.3 0.2 
20276.6 0.2 
20286.2 0.2 
Thereafter51.6 11.6 
Total future minimum lease payments$86.2 $12.6 
Imputed interest(25.6)(10.3)
Total lease liabilities$60.6 $2.3 
At December 31, 2023, none of the Company's executed leases that had not yet commenced will create significant rights or obligations in the future and sublease transactions are not material. Additionally, the Company had related party leases that were terminated effective December 31, 2021, refer to Note 13. There were no restrictions or covenants imposed by its leases.