License, Collaboration and Other Significant Agreements - Deferred Revenues Balance (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Revenue:
Short-term deferred revenue	$ 3,738	$ 20,906
Long-Term	43,296	$ 21,474
Total	47,034
MTPC | MTPC
Deferred Revenue:
Short-term deferred revenue	3,738
Long-Term	0
Total	3,738
Vifor Pharma
Deferred Revenue:
Short-term deferred revenue	0
Long-Term	43,296
Total	$ 43,296