Commitment and Contingencies - Contractual Obligations (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Purchase Obligations
Total	$ 9,155	[1]
2020	9,155	[1]
2021	0	[1]
2022	0	[1]
2023	0	[1]
2024	0	[1]
Thereafter	0	[1]
Total
Total	9,970
2020	9,280
2021	85
2022	70
2023	70
2024	60
Thereafter	405
License Agreements [Member]
Contractual obligations, Fiscal Year Maturity
Total	815	[2]
2020	125	[2]
2021	85	[2]
2022	70	[2]
2023	70	[2]
2024	60	[2]
Thereafter	$ 405	[2]

[1] Purchase obligations consist of non-cancelable purchase commitments to suppliers.

[2] Excludes future obligations pursuant to the cost-sharing arrangement under the Company's License Agreement with Roche. Amounts of such obligations, if any, cannot be determined at this time.