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Commitments and Contingencies - Contingent Consideration and Employee Retention Bonus (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Feb. 25, 2019
Commitments And Contingencies |  |  |
Contingent consideration under RPAs and CPPAs | $ 75,000 | $ 8,075,000 |
Aronora, Kuros, Affitech, ObsEva, and Merck KGaA | Royalty milestones, sales milestones, non-sales milestones, and royalties |  |  |
Commitments And Contingencies |  |  |
Contingent consideration under RPAs and CPPAs | 0 |  |
Royalty Purchase Agreement | Bioasis |  |  |
Commitments And Contingencies |  |  |
Contingent consideration under RPAs and CPPAs | 100,000 |  | $ 100,000
Changes in estimated fair value of contingent consideration | $ 0 |  |

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