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Leases | 12 Months Ended
--- | ---
Dec. 31, 2023
Leases [Abstract] |
Leases | Leases The Company leases certain transportation and mobile manufacturing equipment such as railcars and forklifts, as well as real estate. The components of lease expense are as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
|  | (Dollars in thousands)
Operating lease cost |  | $ | 4,896 |  |  | $ | 5,441 |  |  | $ | 5,399 |
Finance lease cost: |  |  |  |  |  |
Amortization of lease assets |  | 39 |  |  | — |  |  | — |
Interest on lease liabilities |  | 13 |  |  | — |  |  | — |
Short-term lease cost |  | 123 |  |  | 163 |  |  | 408 |
Variable lease cost |  | 743 |  |  | 756 |  |  | 453 |
Total lease cost |  | $ | 5,814 |  |  | $ | 6,360 |  |  | $ | 6,260 |
Supplemental cash-flow and other information related to leases is as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
|  | (Dollars in thousands)
Cash paid for amounts included in the measurement of lease liabilities |  |  |  |  |  |
Operating cash outflows - payments on operating leases |  | $ | (3,919) |  |  | $ | (4,015) |  |  | $ | (5,466) |
Operating cash outflows - interest payments on finance leases |  | (13) |  |  | — |  |  | — |
Financing cash outflows - payments on finance lease obligations |  | (36) |  |  | — |  |  | — |
Right-of-use assets obtained in exchange for operating lease obligations |  | 2,621 |  |  | 2,303 |  |  | 5,584 |
Right-of-use assets obtained in exchange for finance lease obligations |  | 291 |  |  | — |  |  | — |
Supplemental balance sheet information related to leases is as follows:
|  |  | December 31,
|  |  | 2023 |  | 2022
|  |  | (Dollars in thousands)
| Location |  |  |  |
Operating Leases |  |  |  |  |
Operating lease right-of-use assets | Other assets |  | $ | 5,003 |  |  | $ | 5,741 |
Current operating lease liabilities | Other accrued liabilities |  | 2,568 |  |  | 3,575 |
Non-current operating lease liabilities | Other long-term obligations |  | 2,542 |  |  | 2,304 |
Total operating lease liabilities |  |  | $ | 5,110 |  |  | $ | 5,879 |
Finance Leases |  |  |  |  |
Property, plant and equipment | Property, plant and equipment |  | $ | 330 |  |  | $ | — |
Accumulated depreciation | Accumulated depreciation |  | 39 |  |  | — |
Finance lease assets, net |  |  | $ | 291 |  |  | $ | — |
Other liabilities and accrued items | Other liabilities and accrued items |  | $ | 83 |  |  | $ | — |
Finance lease liabilities | Other long-term obligations |  | 210 |  |  | — |
Total principal payable on finance leases |  |  | $ | 293 |  |  | $ | — |
Weighted-Average Remaining Lease Term |  |  |  |  |
Operating leases |  |  | 2.4 years |  | 2.1 years
Finance leases |  |  | 4.1 years |  | 0 years
Weighted-Average Discount Rate |  |  |  |  |
Operating leases |  |  | 6.63 | % |  | 4.65 | %
Finance leases |  |  | 7.93 | % |  | — | %
As of December 31, 2023, future minimum lease payments under noncancellable operating leases were as follows:
|  | Finance Leases |  | Operating Leases
|  | (Dollars in thousands)
2024 |  | $ | 87 |  |  | $ | 2,640 |
2025 |  | 87 |  |  | 1,700 |
2026 |  | 87 |  |  | 891 |
2027 |  | 53 |  |  | 264 |
2028 |  | 31 |  |  | 30 |
2029 and thereafter |  | — |  |  | — |
Total lease payments |  | $ | 345 |  |  | $ | 5,525 |
Less: Imputed interest |  | (52) |  |  | (415) |
Present value of lease payments |  | $ | 293 |  |  | $ | 5,110 |
As of December 31, 2023, the Company has not entered into any material lease commitments that have yet to commence.

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//842-20/tableOfContent + Details
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