License Agreement (Details) - License Agreement - Amgen, Inc - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2015 |
Dec. 31, 2023 |
|
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||
| Milestone payments | $ 5.0 | |
| Maximum future payments upon achievement of certain development and commercial milestones | $ 167.5 |