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Liability Related to Sale of Future Royalties (Tables) | 9 Months Ended
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Sep. 30, 2023
Liability Related to Sale of Future Royalties [Abstract] |
Liability Related to Sale of Future Royalties | The following is a summary of our liability related to sale of future royalties for the nine months ended September 30, 2023 (in thousands):
Proceeds from sale of future royalties |  | $ | 500,000 |
Royalty payments to Royalty Pharma |  |  | (27,814 | )
Interest expense related to sale of future royalties |  |  | 50,541 |
Liability related to sale of future royalties as of September 30, 2023 |  |  | 522,727 |
Issuance costs related to sale of future royalties |  |  | (10,434 | )
Amortization of issuance costs related to sale of future royalties as of September 30, 2023 |  |  | 407 |
Net liability related to sale of future royalties as of September 30, 2023 |  | $ | 512,700 |

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