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Royalty Financing Obligation - Activity (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2024 | Aug. 01, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Debt Instrument, Increase (Decrease), Net [Roll Forward] |  |  |  |  |
Receipt of the first tranche of the royalty financing obligation |  |  | $ 0 | $ 30,000 | $ 0
Accretion of imputed interest expense on royalty financing obligation |  |  | 10,830 | 9,886 | 12,342
Less: one-time payment for expiration of second tranche | $ (2) |  | (2,000) | 0 |
Royalty Financing |  |  |  |  |
Debt Instrument, Increase (Decrease), Net [Roll Forward] |  |  |  |  |
Royalty financing obligation – beginning balance |  |  | 33,490 | 0 |
Receipt of the first tranche of the royalty financing obligation |  | $ 30,000 | 0 | 30,000 |
Accretion of imputed interest expense on royalty financing obligation |  |  | 10,830 | 3,743 | 0
Less: royalty payments made to RTW |  |  | (5,181) | (253) |
Royalty financing obligation – ending balance |  |  | 37,139 | 33,490 | $ 0
Less: royalty payable to RTW classified within accrued expenses |  |  | (1,890) | (730) |
Royalty financing obligation, non-current |  |  | $ 35,249 | $ 32,760 |

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