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Financial Royalty Assets, net - Schedule of Financial Royalty Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Finite-Lived Intangible Assets |  |
Gross carrying value | $ 221,704 | $ 198,587
Allowance | (2,956) | (3,538)
Net carrying value | 218,748 | 195,049
Short-term portion of financial royalty assets, net | 12,416 | 10,025
Qarziba |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 112,052 | 105,329
Allowance | (517) | (484)
Net carrying value | 111,535 | 104,845
Agenus, Inc. [Member] |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 40,815 | 40,815
Allowance | (408) | (408)
Net carrying value | 40,407 | 40,407
Tolerance Therapeutics (Tzield®) |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 25,363 | 25,613
Allowance | (99) | (101)
Net carrying value | 25,264 | 25,512
Ohtuvayre inventors |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 15,608 | 15,969
Allowance | (142) | (157)
Net carrying value | 15,466 | 15,812
Elutia (CorMatrix) |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 8,466 | 9,418
Allowance | (1,316) | (2,268)
Net carrying value | 7,150 | 7,150
AT220 (Tyenne) |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 4,751 | 0
Allowance | (143) | 0
Net carrying value | 4,608 | 0
UGN-301 (Urogen) |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 4,144 | 0
Allowance | (41) | 0
Net carrying value | 4,103 | 0
Primrose mRNA |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 3,281 | 0
Allowance | (98) | 0
Net carrying value | 3,183 | 0
Others |  |
Finite-Lived Intangible Assets |  |
Gross carrying value | 7,224 | 1,443
Allowance | (192) | (120)
Net carrying value | $ 7,032 | $ 1,323

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