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Leases (Schedule of Assets and Liabilities Balance Related to Finance and Operating Leases) (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Leases [Abstract] |  |
Finance lease right-of-use assets | $ 1,477 | $ 1,749
Operating lease right-of-use assets | 12,487 | 13,013
Finance lease obligations, current portion | 345 | 498
Finance lease obligations, non-current portion | 1,147 | 1,295
Total finance lease obligations | 1,492 | 1,793
Operating lease obligations, current portion | 2,933 | 2,842
Operating lease obligations, non-current portion | 9,752 | 10,689
Total operating lease obligations | $ 12,685 | $ 13,531
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Property, plant and equipment, net of accumulated depreciation of $391,898 and $381,584 | Property, plant and equipment, net of accumulated depreciation of $391,898 and $381,584
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Other long-term assets | Other long-term assets
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | Other accrued liabilities | Other accrued liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other long-term liabilities | Other long-term liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Other accrued liabilities | Other accrued liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other long-term liabilities | Other long-term liabilities

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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