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Leases (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Components of Lease Expense The components of lease expense for the years ended December 31, 2021, 2020, and 2019 were as follows:
202120202019
Operating lease cost$9,266 $10,672 $10,805 
Finance lease cost:
     Amortization of right-of-use assets164 1,755 2,686 
     Interest on lease liabilities26 294 671 
Short-term lease cost10,290 13,187 13,756 
Variable lease cost115 109 92 
Total lease cost$19,861 $26,017 $28,010 

    Supplemental cash flow information for the years ended December 31, 2021, 2020, and 2019 related to leases were as follows:
202120202019
Cash paid for amounts included in the measurement of lease liabilities:
     Operating cash flows from operating leases$19,678 $23,996 $24,526 
     Operating cash flows from finance leases26 294 671 
     Financing cash flows from finance leases2,707 4,562 5,514 
Right-of-use assets obtained in exchange for lease obligations:
     Operating leases$7,668 $7,779 $9,122 
     Finance leases0 83 1,309 
Schedule of Supplemental Balance Sheet Information Supplemental balance sheet information related to leases was as follows at December 31, 2021 and 2020:
20212020
Operating Leases
Operating lease right-of-use assets$21,861 $22,260 
Current portion of operating lease liabilities included in "Other accrued liabilities"$6,600 $7,529 
Operating lease liabilities15,704 15,181 
     Total operating lease liabilities$22,304 $22,710 
Finance Leases
Property, plant and equipment, at cost$1,071 $10,352 
Accumulated depreciation(364)(3,703)
     Property, plant and equipment, net$707 $6,649 
Current installments of finance lease obligations$280 $2,707 
Finance lease obligations9 289 
     Total finance lease obligations$289 $2,996 
Weighted Average Remaining Lease Term (years)
     Operating leases6.465.87
     Finance leases0.971.39
Weighted Average Discount Rate
     Operating leases4.96 %5.04 %
     Finance leases5.74 %6.04 %
Schedule of Future Minimum Lease Obligations, Finance Lease The Partnership’s future minimum lease obligations as of December 31, 2021 consist of the following:
Operating LeasesFinance Leases
Year 1$7,501 $289 
Year 24,672 9 
Year 33,137 — 
Year 42,460 — 
Year 51,602 — 
Thereafter6,820 — 
     Total26,192 298 
     Less amounts representing interest costs(3,888)(9)
Total lease liability$22,304 $289 
Schedule of Future Minimum Obligations, Operating Leases The Partnership’s future minimum lease obligations as of December 31, 2021 consist of the following:
Operating LeasesFinance Leases
Year 1$7,501 $289 
Year 24,672 9 
Year 33,137 — 
Year 42,460 — 
Year 51,602 — 
Thereafter6,820 — 
     Total26,192 298 
     Less amounts representing interest costs(3,888)(9)
Total lease liability$22,304 $289