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Commitments and Contingencies - Contingent Consideration (Details) - USD ($) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 11, 2024 | Jun. 21, 2023 | Mar. 29, 2023 | Oct. 06, 2021 | Jun. 30, 2023 | Mar. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 03, 2024 | Dec. 31, 2023
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  |  |  |  |  |  | $ 3,000,000 |  |  | $ 7,000,000
Exarafenib milestone contingent consideration |  |  |  |  |  |  | 2,922,000 |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  |  |  |  | 37,000,000 | $ 14,650,000 |  |
Changes in estimated fair value of contingent consideration |  |  |  |  |  |  |  | $ 75,000 |  |
Short-term royalty and commercial payment receivables |  |  |  |  |  |  | 14,257,000 |  |  | 14,215,000
Long-term royalty and commercial payment receivables |  |  |  |  |  |  | 69,731,000 |  |  | 57,952,000
Kinnate |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Exarafenib milestone contingent consideration |  |  |  |  |  |  | 2,900,000 |  |  |
Assignment and Assumption Agreement and Royalty Purchase Agreement | LadRx |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  | $ 5,000,000.0 |  |  |  |  |  |  |  |
Assignment and Assumption Agreement and Royalty Purchase Agreement | LadRx | Regulatory milestones |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  | $ 1,000,000.0 |  |  |  | $ 0 | 0 |  | $ 0 | 1,000,000.0
Payments of consideration under RPAs, AAAs and CPPAs | $ 1,000,000.0 |  |  |  |  | 1,000,000.0 | 1,000,000.0 |  |  |
Commercial Payment Purchase Agreement | Aptevo |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  |  | $ 50,000 |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  | $ 9,600,000 |  | $ 50,000 |  |  |  |  |
Short-term royalty and commercial payment receivables |  |  |  |  |  |  | 1,900,000 |  |  | 2,000,000.0
Commercial Payment Purchase Agreement | Affitech |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Payments of consideration under RPAs, AAAs and CPPAs |  |  |  | $ 6,000,000.0 |  | 6,000,000.0 |  |  |  |
Commercial Payment Purchase Agreement | Affitech | Regulatory milestones |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  |  |  | $ 8,000,000.0 |  |  |  |  |  |
Commercial Payment Purchase Agreement | Affitech | Sales-based milestones, first and second |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  |  |  |  |  | 0 | $ 0 |  |  | 6,000,000.0
Long-term royalty and commercial payment receivables |  |  |  |  |  |  |  |  |  | $ 6,000,000.0
Commercial Payment Purchase Agreement | Affitech | Sales-based milestones, third |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |  |
Contingent consideration under RPAs, AAAs and CPPAs |  |  |  |  |  | 3,000,000.0 |  |  |  |
Short-term royalty and commercial payment receivables |  |  |  |  |  | $ 3,000,000.0 |  |  |  |

X
- Definition Amount of liability recognized from contingent consideration in asset acquisition, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 15 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480123/805-50-15-3 + Details
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- Definition Liability recorded for contingent consideration under purchase agreements. May include royalty purchase agreements, assignment and assumption agreements, and commercial payment purchase agreements. Includes contingent consideration recognized under ASC 815 and measured at fair value as a current liability at the inception of the transaction. Also includes contingent consideration recognized under ASC 450 if it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Classified as current. + References No definition available. + Details
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