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License Agreements - Hangzhou Highlightll Pharmaceutical Agreement (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Mar. 31, 2023
License and other agreements |  |  |  |  |  |
Development milestone payment to be paid | $ 140,650,000 |  |  | $ 140,650,000 |  |
Milestone payment to be paid upon regulatory achievement | 641,975,000 |  |  | 641,975,000 |  |
Commercial milestone payment to be paid | 2,150,450,000 |  |  | 2,150,450,000 |  |
Research and development | 157,607,000 |  | $ 95,517,000 | 628,398,000 | $ 238,468,000 |
Highlightll Pharmaceutical Co, Ltd. |  |  |  |  |  |
License and other agreements |  |  |  |  |  |
Research and development | 0 |  | $ 0 | 0 | $ 0 |
Highlightll Pharmaceutical Co, Ltd. | Collaborative arrangement |  |  |  |  |  |
License and other agreements |  |  |  |  |  |
Issuance of common shares, net of offering costs |  | $ 21,814,000 |  |  |  |
Development milestone payment to be paid | 75,000,000 |  |  | 75,000,000 |  |
Milestone payment to be paid upon regulatory achievement | 37,500,000 |  |  | 37,500,000 |  |
Commercial milestone payment to be paid | $ 837,500,000 |  |  | $ 837,500,000 |  |
Highlightll Pharmaceutical Co, Ltd. | License agreement | Collaborative arrangement |  |  |  |  |  |
License and other agreements |  |  |  |  |  |
Payment obligation for license agreement |  |  |  |  |  | $ 10,000,000
Obligation for issuance of common shares as payment for assets (in shares) |  |  |  |  |  | 721,136

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