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Development, Commercialization and Supply Agreements - Summary of Transaction Price Comprising Upfront Payments and Milestones (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended
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Jun. 30, 2024 | Oct. 31, 2023 | Jan. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2018 | Sep. 30, 2017 | Mar. 31, 2017 | Mar. 31, 2016 | Feb. 28, 2015 | Sep. 30, 2024
Edding |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Regulatory development support |  |  |  |  |  |  |  |  |  | $ 1,081
Total Trasanction Price |  |  |  |  |  |  |  |  |  | 40,081
Edding | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable up-front received |  |  |  |  |  |  |  |  | $ 15,000 |
Edding | Clinical Trial Application | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received |  |  |  |  |  |  |  | $ 1,000 |  |
Edding | Achievement of REDUCE-IT Trial | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received |  | $ 3,000 |  |  |  |  |  |  |  |
Edding | VASCEPA | Achievement of REDUCE-IT Trial |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received | $ 15,000 |  |  |  |  |  |  |  |  |
Edding | VASCEPA | Marine | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received |  |  |  |  |  |  | $ 5,000 |  |  |
HLS |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Total Trasanction Price |  |  |  |  |  |  |  |  |  | $ 13,800
HLS | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable up-front received |  |  |  |  |  | $ 5,000 |  |  |  |
Non-refundable milestone payment received |  |  | $ 3,800 |  |  |  |  |  |  |
HLS | Out-licenses | Health Canada |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received |  |  |  | $ 2,500 |  |  |  |  |  |
HLS | Achievement of REDUCE-IT Trial | Out-licenses |  |  |  |  |  |  |  |  |  |
License And Collaboration Agreements [Line Items] |  |  |  |  |  |  |  |  |  |
Non-refundable milestone payment received |  |  |  |  | $ 2,500 |  |  |  |  |

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