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Lease Obligations - Summary of Lease-Related Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets |  |
Operating lease right-of-use assets | $ 20,971 | $ 22,291
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Property and equipment, net of accumulated depreciation of $322,128 and $294,366, respectively |
Finance lease right-of-use assets | $ 0 | 390
Total right-of-use lease assets | 20,971 | 22,681
Current |  |
Operating lease obligations | 7,765 | 6,612
Finance lease obligations | 0 | 318
Total current obligations | 7,765 | 6,930
Non-current |  |
Operating lease obligations | 13,230 | 15,730
Total non-current obligations | 13,230 | 15,730
Net present value of minimum lease payments | $ 20,995 | $ 22,660

X
- Definition Amount of total lease liability. + References No definition available. + Details
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- Definition Amount of lease liability classified as current. + References No definition available. + Details
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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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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating 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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