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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Lease, Cost | 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 |
Schedule of Cash Flow, Supplemental Disclosures | 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 | 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 | % |  | — | %
Operating Lease, Liability, Maturity | 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 |

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- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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