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v3.23.2

Intangible assets and goodwill - Definite-lived Intangibles (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Definite-lived intangible assets |  |  |  |  |
Milestone Payable | $ 2,500 | $ 50,000 | $ 2,500 | $ 50,000 |
Accrued royalties | 51,720 |  | 51,720 |  | $ 40,546
Definite-lived intangibles |  |  |  |  |
Amortization | (47,397) | (26,294) | (86,812) | (49,767) |
Finite-Lived Intangible Assets, Net | $ 215,863 |  | $ 215,863 |  |
Weighted Average |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Remaining amortization period | 5 years |  | 5 years |  |
Emflaza asset acquisition |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Milestone obligation payments recorded |  |  | $ 46,500 |  |
Emflaza asset acquisition | Accounts payable and accrued expenses |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Milestone Payable | $ 35,300 |  | 35,300 |  |
Akcea | Waylivra |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Royalty payments |  |  | 0 |  |
Akcea | Tegsedi |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Royalty payments |  |  | 3,500 |  |
Akcea | Tegsedi | Accounts payable and accrued expenses |  |  |  |  |
Definite-lived intangible assets |  |  |  |  |
Accrued royalties | 1,600 |  | 1,600 |  |
Definite-lived intangible assets |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 526,228 |  |
Additions |  |  | 50,026 |  |
Foreign Currency Translation |  |  | 462 |  |
Ending balance - Definite-lived assets, Gross | 576,716 |  | 576,716 |  |
Beginning balance - Accumulated amortization |  |  | (273,903) |  |
Amortization | (47,400) | $ (26,300) | (86,812) | $ (49,800) |
Foreign Currency Translation - Accumulated amortization |  |  | (138) |  |
Ending balance - Accumulated amortization | (360,853) |  | (360,853) |  |
Finite-Lived Intangible Assets, Net | 215,863 |  | 215,863 |  |
Definite-lived intangible assets | Emflaza |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 420,253 |  |
Additions |  |  | 46,538 |  |
Ending balance - Definite-lived assets, Gross | 466,791 |  | 466,791 |  |
Beginning balance - Accumulated amortization |  |  | (266,023) |  |
Amortization |  |  | (81,908) |  |
Ending balance - Accumulated amortization | (347,931) |  | (347,931) |  |
Definite-lived intangible assets | Waylivra |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 9,316 |  |
Foreign Currency Translation |  |  | 252 |  |
Ending balance - Definite-lived assets, Gross | 9,568 |  | 9,568 |  |
Beginning balance - Accumulated amortization |  |  | (2,751) |  |
Amortization |  |  | (524) |  |
Foreign Currency Translation - Accumulated amortization |  |  | (81) |  |
Ending balance - Accumulated amortization | (3,356) |  | (3,356) |  |
Definite-lived intangible assets | Tegsedi |  |  |  |  |
Definite-lived intangibles |  |  |  |  |
Beginning balance - Definite-lived assets, Gross |  |  | 7,109 |  |
Additions |  |  | 3,488 |  |
Foreign Currency Translation |  |  | 210 |  |
Ending balance - Definite-lived assets, Gross | 10,807 |  | 10,807 |  |
Beginning balance - Accumulated amortization |  |  | (1,709) |  |
Amortization |  |  | (649) |  |
Foreign Currency Translation - Accumulated amortization |  |  | (57) |  |
Ending balance - Accumulated amortization | (2,415) |  | (2,415) |  |
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 |  |  | (3,731) |  |
Ending balance - Accumulated amortization | $ (7,151) |  | $ (7,151) |  |

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