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Fair Value of Financial Instruments - Narratives (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Fair Value of Financial Instruments |  |  |  |  |  |
Fair value of contingent consideration | $ 6,788,000 |  |  | $ 6,788,000 |  | $ 6,274,000
In-process R&D, carrying value and fair value | 18,600,000 |  |  | 18,600,000 |  | $ 19,800,000
In-process R&D impairment | 1,300,000 |  |  | 1,300,000 |  |
Goodwill, at carrying value | 1,500,000 | $ 5,500,000 |  | 1,500,000 |  |
Goodwill, fair value | 0 | 1,500,000 |  | 0 |  |
Goodwill impairment | 1,526,000 | $ 4,000,000.0 |  | 5,594,000 |  |
V C N |  |  |  |  |  |
Fair Value of Financial Instruments |  |  |  |  |  |
Additional consideration related to the achievement of certain milestones |  |  |  | 70,200,000 |  |
Amount to be paid due to approval |  |  | $ 3,250,000 |  |  |
Fair value of contingent consideration | 6,800,000 |  |  | 6,800,000 |  |
Operating expense relating to fair value adjustment | $ (587,000) |  | $ 1,600,000 | $ (514,000) | $ 1,000,000.0 |

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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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