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Royalty Financing Agreement - Interest expenses under royalty financing (Details) - Royalty Financing Agreement - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
CSL Behring collaboration |  |  |  |
Interest expenses | $ 13.8 | $ 12.4 | $ 27.1 | $ 24.8
Minimum |  |  |  |
CSL Behring collaboration |  |  |  |
Interest expenses | $ 13.7 | $ 12.4 | $ 26.9 | $ 24.5
Effective interest rate (as a percent) | 12.00% | 12.00% | 12.00% | 12.00%
Maximum |  |  |  |
CSL Behring collaboration |  |  |  |
Interest expenses | $ 15.5 | $ 14.0 | $ 30.3 | $ 27.7
Effective interest rate (as a percent) | 13.50% | 13.50% | 13.50% | 13.50%

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