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Royalty and Commercial Payment Purchase Agreements - Aronora (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 07, 2019 USD ($) item multiplier | Sep. 30, 2019 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  |  | $ 37,000,000 | $ 14,650,000 |
Contingent consideration under RPAs, AAAs and CPPAs |  |  | $ 3,000,000 |  | 3,000,000 |  | $ 7,000,000
Short-term royalty and commercial payment receivables |  |  | 14,257,000 |  | 14,257,000 |  | 14,215,000
Royalty purchase agreement asset impairment |  |  | 9,000,000 | $ 1,575,000 | 9,000,000 | $ 1,575,000 |
Aronora |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Decrease in long-term royalty and commercial rights receivables due to impairment |  |  |  |  | $ 9,000,000 |  |
Aronora | Royalty Purchase Agreement |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Number of drug candidates | item | 5 |  |  |  |  |  |
Non-royalties to be received (as a percent) | 10.00% |  |  |  |  |  |
Future non-royalty payments to be received (as a percent) | 5.00% |  |  |  |  |  |
Multiplier for cumulative amount of consideration paid | multiplier | 2 |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs | $ 6,000,000.0 | $ 3,000,000.0 |  |  |  |  |
Threshold amount of cumulative royalties on net sales per product | 250,000,000.0 |  |  |  |  |  |
Maximum royalty milestone payments to be paid per product | 85,000,000.0 |  |  |  |  |  |
Acquisition of royalty and commercial payment receivables, Long-Term | 9,000,000.0 |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs | 3,000,000.0 |  |  |  |  |  |
Royalty purchase agreement asset impairment |  |  | 9,000,000.0 |  |  |  |
Amount of increase in allowance for credit loss |  |  | 9,000,000.0 |  |  |  |
Amount of allowance for credit losses |  |  |  |  |  |  | $ 0
Decrease in long-term royalty and commercial rights receivables due to impairment |  |  | $ 9,000,000.0 |  |  |  |
Aronora | Royalty Purchase Agreement | Minimum |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Threshold amount of cumulative royalties on net sales per product | 25,000,000.0 |  |  |  |  |  |
Aronora | Royalty Purchase Agreement | SVB Loan |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs | $ 3,000,000.0 |  |  |  |  |  |
Aronora | Royalty Purchase Agreement | Bayer Products |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Number of drug candidates | item | 3 |  |  |  |  |  |
Number of drug candidates subject to exclusive license option | item | 1 |  |  |  |  |  |
Royalties entity has right to receive (as a percent) | 100.00% |  |  |  |  |  |
Non-royalties to be received (as a percent) | 10.00% |  |  |  |  |  |
Contingent future cash payment for each product | $ 1,000,000.0 |  |  |  |  |  |
Aronora | Royalty Purchase Agreement | Bayer Products | Maximum |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs | $ 3,000,000.0 |  |  |  |  |  |
Aronora | Royalty Purchase Agreement | Non-Bayer Products |  |  |  |  |  |  |
Agreements |  |  |  |  |  |  |
Number of drug candidates | 2 |  |  |  |  |  |
Non-royalties to be received (as a percent) | 10.00% |  |  |  |  |  |

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