Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease Assets and Liabilities
ROU assets, operating, net	$ 7,794
Current portion of operating lease liabilities	3,782
Current portion of finance lease liabilities	105,862	$ 0
Total current lease liabilities	109,644
Non-current portion of operating lease liabilities	10,122
Non-current finance lease liabilities	40,083	$ 0
Total non-current lease liabilities	$ 50,205
Weighted average remaining term, operating lease	4 years 6 months
Weighted average remaining lease term, finance lease	4 years 8 months 12 days
Weighted average discount rate, percent, operating lease	13.80%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:FinanceLeaseLiabilityNoncurrent
CMO and CMD Agreements
Lease Assets and Liabilities
Weighted average discount rate, percent, finance lease	6.40%