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Leases (Tables)
12 Months Ended
Dec. 31, 2023
Leases [Abstract]  
Lease, Cost The components of lease expense are as follows:
Year Ended December 31,
202320222021
(Dollars in thousands)
Operating lease cost$4,896 $5,441 $5,399 
Finance lease cost:
Amortization of lease assets39 — — 
Interest on lease liabilities13 — — 
Short-term lease cost123 163 408 
Variable lease cost743 756 453 
Total lease cost$5,814 $6,360 $6,260 
Schedule of Cash Flow, Supplemental Disclosures
Supplemental cash-flow and other information related to leases is as follows:
Year Ended December 31,
202320222021
(Dollars in thousands)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash outflows - payments on operating leases$(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 obligations2,621 2,303 5,584 
Right-of-use assets obtained in exchange for finance lease obligations291 — — 
Supplemental Balance Sheet
Supplemental balance sheet information related to leases is as follows:
December 31,
20232022
(Dollars in thousands)
Location
Operating Leases
Operating lease right-of-use assets Other assets $5,003 $5,741 
Current operating lease liabilities Other accrued liabilities2,568 3,575 
Non-current operating lease liabilities Other long-term obligations2,542 2,304 
Total operating lease liabilities$5,110 $5,879 
Finance Leases
Property, plant and equipmentProperty, plant and equipment$330 $— 
Accumulated depreciationAccumulated depreciation39 — 
Finance lease assets, net$291 $— 
Other liabilities and accrued itemsOther liabilities and accrued items$83 $— 
Finance lease liabilitiesOther long-term obligations210 — 
Total principal payable on finance leases$293 $— 
Weighted-Average Remaining Lease Term
Operating leases2.4 years2.1 years
Finance leases4.1 years0 years
Weighted-Average Discount Rate
Operating leases6.63 %4.65 %
Finance leases7.93 %— %
Operating Lease, Liability, Maturity
As of December 31, 2023, future minimum lease payments under noncancellable operating leases were as follows:
Finance LeasesOperating Leases
 (Dollars in thousands)
2024$87 $2,640 
202587 1,700 
202687 891 
202753 264 
202831 30 
2029 and thereafter— — 
Total lease payments $345 $5,525 
Less: Imputed interest(52)(415)
Present value of lease payments$293 $5,110