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Lease Obligations (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Lessee, Lease, Description [Line Items]    
Lease termination period 10 years  
Lease, Cost [Abstract]    
Operating lease cost $ 8,333 $ 8,541
Short-term lease cost 13,438 13,109
Finance lease cost:    
Amortization of right-of-use assets 196 204
Interest on lease liabilities 20 28
Total finance lease cost 216 232
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 8,365 8,296
Operating cash flows from finance leases 20 28
Financing cash flows from finance leases 196 204
Right-of-use assets obtained in exchange for lease obligations (non-cash):    
Operating leases 15,085 8,450
Finance leases 0 0
Assets and Liabilities, Lessee [Abstract]    
Operating lease right-of-use assets 24,520 16,515
Current portion of long-term lease obligations 8,841 7,588
Long-term lease obligations 15,831 8,958
Total operating lease liabilities 24,672 16,546
Property and equipment, at cost 1,479 1,479
Accumulated depreciation $ (907) $ (702)
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Property and equipment, net ($10,420 and $6,010 related to VIEs) Property and equipment, net ($10,420 and $6,010 related to VIEs)
Property and equipment, net $ 572 $ 777
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Current maturities of long-term debt ($4,857 and $6,793 related to VIEs) Current maturities of long-term debt ($4,857 and $6,793 related to VIEs)
Current maturities of long-term debt $ 148 $ 188
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Long-term debt ($81 and $53 related to VIEs) Long-term debt ($81 and $53 related to VIEs)
Long-term debt $ 224 $ 372
Total finance lease liabilities $ 372 $ 560
Weighted average remaining lease term, operating leases 5 years 4 months 24 days 3 years 2 months 12 days
Weighted average remaining lease term, finance leases 2 years 6 months 3 years 2 months 12 days
Weighted average discount rate, operating leases 5.00% 5.70%
Weighted average discount rate, finance leases 4.30% 4.20%
Lessee, Operating Lease, Liability, Payment, Due [Abstract]    
2022 $ 8,971  
2023 6,118  
2024 3,957  
2025 2,464  
2026 1,960  
Thereafter 4,872  
Total lease payments 28,342  
Less imputed interest (3,670)  
Total operating lease liabilities 24,672 $ 16,546
Finance Lease, Liability, Payment, Due [Abstract]    
2022 161  
2023 154  
2024 77  
2025 0  
2026 0  
Thereafter 0  
Total lease payments 392  
Less imputed interest (20)  
Total finance lease liabilities $ 372 $ 560
Minimum    
Lessee, Lease, Description [Line Items]    
Lease renewal term 1 month  
Maximum    
Lessee, Lease, Description [Line Items]    
Lease renewal term 14 years