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Fair Value Measurements - Contingent Consideration (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jan. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Oct. 06, 2021 | Feb. 25, 2019
Fair Value Measurements |  |  |  |  |
Contingent consideration under RPAs and CPPAs |  | $ 3,075 | $ 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
Affitech | Commercial payment purchase agreement |  |  |  |  |
Fair Value Measurements |  |  |  |  |
Contingent consideration under RPAs and CPPAs |  | $ 3,000 |  | $ 8,000 |
Amount of milestone payment | $ 5,000 |  |  |  |

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