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Moderna Collaboration and License Agreement - Narratives (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 30 Months Ended |  |
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Jul. 03, 2024 USD ($) | Jun. 30, 2024 USD ($) | Jan. 31, 2022 USD ($) product target | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) obligation target | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Collaboration revenues |  |  |  | $ 9,200 | $ 3,600 | $ 12,600 | $ 6,800 |  |  |
Deferred revenue liability |  | $ 41,909 |  | 41,909 | 46,416 | 41,909 | 46,416 | $ 41,909 | $ 46,413 | $ 47,459
Collaboration revenues |  |  |  | 9,197 | $ 3,560 | 12,594 | $ 6,803 |  |  |
Option Right Collaboration Revenues |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Collaboration revenues |  |  |  | 3,800 |  | 3,800 |  |  |  |
Milestones |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Collaboration revenues |  |  |  | 2,000 |  | $ 2,000 |  |  |  |
Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Number of potential research target designations | target |  |  |  |  |  | 12 |  |  |  |
Collaboration and License Agreement | Research and Development Services |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Variable consideration |  |  |  |  |  | $ 73,900 |  |  |  |
Term of contract |  |  |  |  |  | 5 years |  |  |  |
Noncurrent portion of deferred revenue |  | 41,300 |  | 41,300 |  | $ 41,300 |  | 41,300 |  |
Collaboration and License Agreement | Moderna |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Maximum of research targets | target |  |  | 12 |  |  |  |  |  |  |
Number of research targets, designate as development targets | target |  |  | 12 |  |  |  |  |  |  |
Number of research targets designated | target |  |  | 5 |  |  |  |  |  |  |
Collaboration and License Agreement | Moderna | Research and Development Services |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Upfront non-refundable payment received |  |  | $ 45,000 |  |  | $ 45,000 |  |  |  |
Number of potential products to develop and commercialize | product |  |  | 12 |  |  |  |  |  |  |
Minimum commitment to reimburse research and development costs |  |  | $ 10,000 |  |  |  |  |  |  |
Period of reimbursement of research and development costs |  |  | 3 years |  |  |  |  |  |  |
Number of performance obligations | obligation |  |  |  |  |  | 2 |  |  |  |
Collaboration and License Agreement | Moderna | Minimum | Research and Development Services |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Amount receivable per product |  |  | $ 247,000 |  |  |  |  |  |  |
Collaboration and License Agreement | Moderna | Maximum | Research and Development Services |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Amount receivable per product |  |  | $ 253,000 |  |  |  |  |  |  |
Moderna License Agreement | Research and Development Services |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Collaboration revenues |  |  |  |  |  |  |  | 31,600 |  |
Moderna License Agreement | Option Right Collaboration Revenues |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Collaboration revenues |  |  |  |  |  |  |  | 3,800 |  |
Moderna License Agreement | Moderna |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Milestone payment |  | 2,000 |  | 2,000 |  | $ 2,000 |  | 2,000 |  |
Collaboration revenues |  | 2,000 |  |  |  |  |  |  |  |
Deferred revenue liability |  | $ 45,000 |  | $ 45,000 |  | 45,000 |  | $ 45,000 |  |
Decrease in contract with customer, liability |  |  |  |  |  | $ 3,800 |  |  |  |
Moderna License Agreement | Moderna | Subsequent Event |  |  |  |  |  |  |  |  |  |
Moderna Collaboration and License Agreement |  |  |  |  |  |  |  |  |  |
Proceeds related to collaboration revenue | $ 2,000 |  |  |  |  |  |  |  |  |

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