Commitments and Contingencies - Lease Assets and Liabilities (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Financing
Right-of-use asset, Financing	$ 14,082
Lease liabilities (current), Financing	4,757
Lease liabilities (noncurrent), Financing	$ 9,374
Right-of-use asset, Financing - Balance Sheet Location	us-gaap:OtherAssets
Lease liabilities (current), Financing - Balance Sheet Location	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Lease liabilities (noncurrent), Financing - Balance Sheet Location	us-gaap:OtherLiabilitiesNoncurrent
Operating
Right-of-use asset, Operating	$ 6,220
Lease liabilities (current), Operating	672
Lease liabilities (noncurrent), Operating	$ 3,071
Right-of-use asset, Operating - Balance Sheet Location	us-gaap:OtherAssets
Lease liabilities (current), Operating - Balance Sheet Location	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Lease liabilities (noncurrent), Operating - Balance Sheet Location	us-gaap:OtherLiabilitiesNoncurrent