Leases - Supplemental Balance Sheet Information Related to Leases (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Lease Assets and Liabilities
Total operating lease liabilities	$ 11,441
Weighted-average remaining lease term (years)	6 years 2 months 16 days
Weighted-average discount rate	15.58%
Other Noncurrent Assets [Member]
Lease Assets and Liabilities
Operating lease ROU assets	$ 6,712
Other Current Liabilities [Member]
Lease Assets and Liabilities
Current operating lease liabilities	1,191
Other Noncurrent Liabilities [Member]
Lease Assets and Liabilities
Non-current operating lease liabilities	$ 10,250