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Royalty Financing Agreement (Details) $ in Thousands |  | 1 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 05, 2023 USD ($) | May 31, 2023 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($)
CSL Behring collaboration |  |  |  |
Royalty financing agreement interest expense, net of interest paid |  |  | $ 20,626 | $ 22,172
CSL Behring |  |  |  |
CSL Behring collaboration |  |  |  |
Maximum rights to all other royalties, as well as contractual milestones retained |  |  | 1,300,000 |
Royalty Financing Agreement |  |  |  |
CSL Behring collaboration |  |  |  |
Upfront payment received |  | $ 375,000 |  |
Upfront payment payable to purchaser |  |  | 843,800 |
Net proceeds from the Royalty Financing Agreement | $ 370,100 |  | 370,100 |
Royalty financing agreement interest expense, net of interest paid |  |  | $ 27,079 |
Royalty Financing Agreement | Minimum |  |  |  |
CSL Behring collaboration |  |  |  |
Effective interest rate (as a percent) |  |  | 12.00% | 12.00%
Royalty Financing Agreement | Maximum |  |  |  |
CSL Behring collaboration |  |  |  |
Effective interest rate (as a percent) |  |  | 13.50% | 13.50%
Royalty Financing Agreement | First Hard Cap Date |  |  |  |
CSL Behring collaboration |  |  |  |
Upfront payment payable to purchaser |  | $ 693,800 |  |
Ratio of upfront payment |  | 1.85 |  |
Royalty financing agreement interest expense, net of interest paid |  |  | $ 473,700 |
Royalty Financing Agreement | If paid through December 31, 2038 |  |  |  |
CSL Behring collaboration |  |  |  |
Ratio of upfront payment |  | 2.25 |  |
Royalty Financing Agreement | If 2024 net sales do not exceed a pre-specified threshold |  |  |  |
CSL Behring collaboration |  |  |  |
Upfront payment payable to purchaser |  | $ 25,000 |  |

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