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Leases and Commitments - Lease Term and Discount Rate (Details)
Dec. 31, 2021
Dec. 31, 2020
Weighted-average remaining lease term    
Operating leases 4 years 4 years 2 months 12 days
Finance leases 2 years 8 months 12 days 2 years 6 months
Weighted-average discount rate    
Operating leases 8.30% 8.50%
Finance leases 9.60% 10.50%