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Leases - Operating and Finance Lease Right-of-use-assets and Related Lease Obligations (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Leases |  |
Operating lease assets | $ 10,879 | $ 9,242
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Operating lease assets | Operating lease assets
Finance lease assets | $ 18,590 | $ 19,238
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Finance lease assets | Finance lease assets
Total leased assets | $ 29,469 | $ 28,480
Operating liabilities current | $ 4,983 | $ 4,716
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Other Liabilities, Current | Other Liabilities, Current
Finance liabilities current | $ 1,101 | $ 979
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | Finance liabilities current | Finance liabilities current
Operating liabilities noncurrent | $ 5,800 | $ 4,357
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent
Finance liabilities noncurrent | $ 45,822 | $ 46,415
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Finance liabilities noncurrent | Finance liabilities noncurrent
Total lease liabilities | $ 57,706 | $ 56,467
Operating Lease, Liability, Statement of Financial Position [Extensible List] | Other Liabilities, Current, Other Liabilities, Noncurrent | Other Liabilities, Current, Other Liabilities, Noncurrent
Finance lease, accumulated depreciation | $ 49,200 | $ 48,600
Prepaid financing costs | $ 600 | $ 700

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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