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Leases (Tables)
 12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Schedule of Lease Expense, Payments for Operating Leases and Information Related to Lease Term and Discount Rates Our expenses and payments for operating leases were as follows:
Year Ended December 31,
(Dollars in thousands)202220212020
Operating leases expense$2,788 $3,002 $3,257 
Short-term leases expense$579 $330 $464 
Payments on operating lease obligations$3,063 $2,784 $2,893 
The following table includes information regarding the lease term and discount rates utilized in the calculation of the present value of net future minimum lease payments:
Finance
Leases		Operating
Leases
Weighted Average Remaining Lease Term4.6 years6.5 years
Weighted Average Discount Rate3.89%5.24%
Schedule of Assets and Liabilities Balance Related to Finance and Operating Leases
Our assets and liabilities balances related to finance and operating leases reflected in the consolidated statements of financial position were as follows:
As of December 31,
(Dollars in thousands)Financial Statement Line Item20222021
Finance lease right-of-use assetsProperty, plant and equipment, net$1,749 $389 
Operating lease right-of-use assetsOther long-term assets$13,013 $17,161 
Finance lease obligations, current portionFinance lease obligations, current portion$498 $198 
Finance lease obligations, non-current portionFinance lease obligations, non-current portion$1,295 $209 
Total finance lease obligations$1,793 $407 
Operating lease obligations, current portionOther accrued liabilities$2,842 $2,810 
Operating lease obligations, non-current portionOther long-term liabilities$10,689 $14,965 
Total operating lease obligations$13,531 $17,775 
Schedule of Finance Lease Liability Maturity
The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of December 31, 2022:
FinanceOperating
(Dollars in thousands)Leases SignedLess: Leases Not Yet CommencedLeases in EffectLeases SignedLess: Leases Not Yet CommencedLeases in Effect
2023608 (46)562 3,536 (81)3,455 
2024425 (49)376 2,716 (142)2,574 
2025425 (50)375 2,360 (145)2,215 
2026418 (45)373 2,057 (72)1,985 
2027212 (45)167 1,310 (3)1,307 
Thereafter164 (38)126 4,682 — 4,682 
Total lease payments2,252 (273)1,979 16,661 (443)16,218 
Less: Interest(218)32 (186)(2,718)31 (2,687)
Present Value of Net Future Minimum Lease Payments$2,034 $(241)$1,793 $13,943 $(412)$13,531 
Schedule of Operating Lease Liability Maturity
The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of December 31, 2022:
FinanceOperating
(Dollars in thousands)Leases SignedLess: Leases Not Yet CommencedLeases in EffectLeases SignedLess: Leases Not Yet CommencedLeases in Effect
2023608 (46)562 3,536 (81)3,455 
2024425 (49)376 2,716 (142)2,574 
2025425 (50)375 2,360 (145)2,215 
2026418 (45)373 2,057 (72)1,985 
2027212 (45)167 1,310 (3)1,307 
Thereafter164 (38)126 4,682 — 4,682 
Total lease payments2,252 (273)1,979 16,661 (443)16,218 
Less: Interest(218)32 (186)(2,718)31 (2,687)
Present Value of Net Future Minimum Lease Payments$2,034 $(241)$1,793 $13,943 $(412)$13,531