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Investments - MedicBeacon Narrative (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 17, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Jan. 18, 2025 | Dec. 31, 2024
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Gain on sale of investments |  |  |  | $ 5,200,000 | $ 0 |  |
MediBeacon Inc. |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Beneficial ownership percentage |  | 44.70% |  | 44.70% |  |  | 45.90%
MediBeacon Inc. | Life Sciences |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Gain on sale of investments |  |  |  | $ 4,400,000 |  |  |
Realized loss, equity issuance |  |  |  | 5,900,000 |  |  |
Equity method investment, interest |  |  |  | 1,500,000 |  |  |
Equity method investments |  | $ 0 |  | 0 |  |  | $ 0
Cumulative unrecognized loss on equity method investments |  | 18,200,000 |  | 18,200,000 |  |  |
MediBeacon Inc. | Life Sciences | Huadong |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Convertible notes and accrued interest converted to stock, in process | $ 7,500,000 |  |  |  |  |  |
Beneficial ownership percentage | 45.90% |  |  |  |  | 44.70% |
Ownership percentage, fully diluted basis | 40.10% |  |  |  |  | 39.70% |
MediBeacon Inc. | Life Sciences | Convertible Debt |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Notes receivable, face amount | $ 11,400,000 |  |  |  |  |  |
Accrued interest receivable | 1,500,000 |  |  |  |  |  |
Convertible notes and accrued interest converted to stock | $ 12,900,000 |  |  |  |  |  |
MediBeacon Inc. | Notes Receivable | Life Sciences |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |
Accrued interest receivable |  | 400,000 |  | 400,000 |  |  | 1,700,000
Notes receivable |  | 500,000 |  | 500,000 |  |  | $ 12,000,000
Interest income |  | $ 15,000 | $ 300,000 | $ 100,000 | $ 1,000,000 |  |

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