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Fair Value Measurements - Contingent Consideration (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 | Jan. 31, 2022 | Sep. 30, 2022 | Sep. 30, 2022 | Dec. 31, 2021 | Oct. 06, 2021 | Feb. 25, 2019
Fair Value Measurements |  |  |  |  |  |  |
Contingent consideration under RPAs and CPPAs | $ 75 |  | $ 75 | $ 75 | $ 8,075 |  |
Bioasis | Royalty Purchase Agreement |  |  |  |  |  |  |
Fair Value Measurements |  |  |  |  |  |  |
Changes in estimated fair value of contingent consideration |  |  |  | 0 |  |  |
Contingent consideration under RPAs and CPPAs | 100 |  | 100 | 100 |  |  | $ 100
Payments of contingent consideration |  |  | 0 | 0 |  |  |
Affitech | Commercial Payment Purchase Agreement | Regulatory milestones |  |  |  |  |  |  |
Fair Value Measurements |  |  |  |  |  |  |
Contingent consideration under RPAs and CPPAs | 0 |  | $ 0 | $ 0 | $ 8,000 | $ 8,000 |
Amount of milestone payment | $ 3,000 | $ 5,000 |  |  |  |  |

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