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v3.23.3

Intangible assets and goodwill - Definite-lived Intangibles (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Definite-lived intangible assets |  |  |  |  |
Milestone Payable | $ 2,500 | $ 50,000 | $ 2,500 | $ 50,000 |
Accrued royalties | 52,087 |  | 52,087 |  | $ 40,546
Definite-lived intangibles |  |  |  |  |
Amortization | (58,649) | (31,023) | (145,461) | (80,790) |
Finite-Lived Intangible Assets, Net | $ 187,576 |  | $ 187,576 |  |
Weighted Average |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Remaining amortization period | 5 years 3 months 18 days |  | 5 years 3 months 18 days |  |
Emflaza asset acquisition |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Milestone obligation payments recorded |  |  | $ 76,500 |  |
Marathon | Emflaza asset acquisition | Accounts payable and accrued expenses |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Milestone Payable | $ 43,900 |  | 43,900 |  |
Akcea | Waylivra |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Royalty payments |  |  | 200 |  |
Akcea | Waylivra | Accounts payable and accrued expenses |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Accrued royalties | 200 |  | 200 |  |
Akcea | Tegsedi |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Royalty payments |  |  | 4,300 |  |
Akcea | Tegsedi | Accounts payable and accrued expenses |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Accrued royalties | 900 |  | 900 |  |
Definite-lived intangible assets |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 526,228 |  |
Additions |  |  | 80,910 |  |
Foreign Currency Translation |  |  | (279) |  |
Ending balance - Definite-lived assets, Gross | 606,859 |  | 606,859 |  |
Beginning balance - Accumulated amortization |  |  | (273,903) |  |
Amortization | (58,600) | $ (31,000) | (145,461) | $ (80,800) |
Foreign Currency Translation - Accumulated amortization |  |  | 81 |  |
Ending balance - Accumulated amortization | (419,283) |  | (419,283) |  |
Finite-Lived Intangible Assets, Net | 187,576 |  | 187,576 |  |
Definite-lived intangible assets | Emflaza |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 420,253 |  |
Additions |  |  | 76,454 |  |
Ending balance - Definite-lived assets, Gross | 496,707 |  | 496,707 |  |
Beginning balance - Accumulated amortization |  |  | (266,023) |  |
Amortization |  |  | (138,038) |  |
Ending balance - Accumulated amortization | (404,061) |  | (404,061) |  |
Definite-lived intangible assets | Waylivra |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 9,316 |  |
Additions |  |  | 157 |  |
Foreign Currency Translation |  |  | (96) |  |
Ending balance - Definite-lived assets, Gross | 9,377 |  | 9,377 |  |
Beginning balance - Accumulated amortization |  |  | (2,751) |  |
Amortization |  |  | (791) |  |
Foreign Currency Translation - Accumulated amortization |  |  | 45 |  |
Ending balance - Accumulated amortization | (3,497) |  | (3,497) |  |
Definite-lived intangible assets | Tegsedi |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 7,109 |  |
Additions |  |  | 4,299 |  |
Foreign Currency Translation |  |  | (183) |  |
Ending balance - Definite-lived assets, Gross | 11,225 |  | 11,225 |  |
Beginning balance - Accumulated amortization |  |  | (1,709) |  |
Amortization |  |  | (1,035) |  |
Foreign Currency Translation - Accumulated amortization |  |  | 36 |  |
Ending balance - Accumulated amortization | (2,708) |  | (2,708) |  |
Definite-lived intangible assets | Upstaza |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 89,550 |  |
Ending balance - Definite-lived assets, Gross | 89,550 |  | 89,550 |  |
Beginning balance - Accumulated amortization |  |  | (3,420) |  |
Amortization |  |  | (5,597) |  |
Ending balance - Accumulated amortization | $ (9,017) |  | $ (9,017) |  |

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