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Leases Additional Operating Lease Information (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Leases [Abstract]    
Operating cash flows for operating leases $ (1,358) $ (1,170)
Weighted average remaining lease term - operating leases 5 years 7 months 6 days 6 years 4 months 24 days
Weighted average discount rate - operating leases 11.00% 11.00%