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Capitalized Fees Paid - Schedule of Capitalized Fees Paid (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Capitalized Fees paid |  |  |
Gross carrying value | $ 220,000 | $ 220,000 |
Accumulated amortization | (150,039) | (136,216) |
Net carrying value | $ 69,961 | 83,784 |
Weighted average remaining amortization period | 5 years 2 months 12 days |  |
Capitalized Fees paid, Future amortization |  |  |
Estimated amortization for the year 2025 | $ 13,800 |  |
Estimated amortization for the year 2026 | 13,800 |  |
Estimated amortization for the year 2027 | 13,800 |  |
Estimated amortization for the year 2028 | 13,700 |  |
Estimated amortization for the year 2029 | 9,400 |  |
Estimated amortization after 2029 | 5,400 |  |
Royalty revenue |  |  |
Capitalized Fees paid |  |  |
Amortization expense | 13,800 | 13,800 | $ 13,800
United States |  |  |
Capitalized Fees paid |  |  |
Gross carrying value | 120,000 | 120,000 |
Europe |  |  |
Capitalized Fees paid |  |  |
Gross carrying value | 60,000 | 60,000 |
Japan |  |  |
Capitalized Fees paid |  |  |
Gross carrying value | 40,000 | 40,000 |
GSK | Royalty revenue |  |  |
Capitalized Fees paid |  |  |
Amortization expense | $ 13,823 | $ 13,823 | $ 13,823

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- Definition Amount of estimated amortization for assets expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of estimated amortization for assets expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of estimated amortization for assets expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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