Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Lease term and discount rates (Details)

v3.20.4
Commitments and Contingencies - Lease term and discount rates (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Commitments and Contingencies.    
Weighted average remaining lease term - Operating leases   7 years
Weighted average remaining lease term - Finance leases   1 year
Weighted average discount rate - Operating leases   9.20%
Weighted average discount rate - Finance leases   6.50%
Weighted average remaining lease term - Operating leases 8 years  
Weighted average remaining lease term - Finance leases 2 years  
Weighted average discount rate - Operating leases 9.20%  
Weighted average discount rate - Finance leases 6.50%