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Royalty and Commercial Payment Purchase Agreements - Affitech (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 06, 2021 | Sep. 30, 2023 | Feb. 28, 2023 | Aug. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  |  | $ 14,650 | $ 8,000 |
Long-term royalty and commercial payment receivables |  | $ 74,696 |  |  | 74,696 |  | $ 63,683
Contingent consideration under RPAs, AAAs and CPPAs |  | 4,000 |  |  | 4,000 |  | 75
Receipts under RPAs, AAAs and CPPAs |  |  |  |  | 8,428 | $ 3,026 |
Short-term royalty and commercial payment receivables |  | 0 |  |  | 0 |  | 2,366
Affitech | Commercial Payment Purchase Agreement |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs | $ 6,000 |  |  |  |  |  |
Maximum payments related to regulatory and commercial sales milestones | 20,000 |  |  |  |  |  |
Long-term royalty and commercial payment receivables | 14,000 | 3,000 |  |  | 3,000 |  |
Maximum payable on regulatory milestone | 8,000 |  |  |  |  |  |
Maximum payable in sales-based milestones | $ 12,000 | 9,000 |  |  | 9,000 |  |
Contingent consideration under RPAs, AAAs and CPPAs |  | 3,000 |  |  | 3,000 |  |
Receipts under RPAs, AAAs and CPPAs |  | 4,900 | $ 2,400 | $ 500 |  |  |
Reduction in long-term royalty receivable balance due to receipt of payment |  | 4,900 | $ 2,400 | $ 500 |  |  |
Amount of allowance for credit losses |  | 0 |  |  | 0 |  | 0
Affitech | Commercial Payment Purchase Agreement | United States |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  |  |  |  | 5,000
Affitech | Commercial Payment Purchase Agreement | Europe |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  |  |  |  | $ 3,000
Affitech | Commercial Payment Purchase Agreement | Faricimab |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Payments eligible to receive (as a percent) | 0.50% |  |  |  |  |  |
Commercial payment receivable term | 10 years |  |  |  |  |  |
Affitech | Commercial Payment Purchase Agreement | Regulatory milestones |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs | $ 8,000 |  |  |  |  |  |
Affitech | Commercial Payment Purchase Agreement | Sales-based milestones |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  | $ 3,000 |  |  | $ 3,000 |  |

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