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Related Party Transactions (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Collaboration and licensing agreements |  |  |
Accounts due from related parties | $ 407 | $ 2,765 |
Revenue from contract with customer | 7,137 | 20,968 | $ 41,867
Commercial supply revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer | 640 | 5,843 | 10,223
Collaborative revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer | 2,086 | 12,936 | 16,572
License and milestone fees |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer |  | 910 | 15,000
Royalty revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer |  | 415 | 72
Affiliated Entity | CSL Vifor Profit Sharing | Collaborative revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer | $ 2,086 | 12,397 | 16,572
Affiliated Entity | CSL Vifor Kapruvia | Royalty revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer |  | 415 | 72
Affiliated Entity | Vifor International Ltd. [Member] |  |  |
Collaboration and licensing agreements |  |  |
Shares owned as a result of upfront and milestone payments | 616,397 |  |
Related party ownership percentage | 13.50% |  |
Affiliated Entity | CSL Vifor |  |  |
Collaboration and licensing agreements |  |  |
Accounts due from related parties | $ 407 | 2,765 |
Affiliated Entity | CSL Vifor | Commercial supply revenue |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer | 640 | 5,843 | 10,223
Revenue from related parties | 640 | 5,843 | 10,223
Related party cost of goods sold | 620 | 6,174 | 7,266
Affiliated Entity | CSL Vifor | License and milestone fees |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer |  |  | $ 15,000
Affiliated Entity | CSL Vifor | Other Non-Cash Revenue [Member] |  |  |
Collaboration and licensing agreements |  |  |
Revenue from contract with customer | 1,492 | $ 284 |
Affiliated Entity | CSL Vifor | CSL Vifor Profit Sharing | Collaborative revenue |  |  |
Collaboration and licensing agreements |  |  |
Negative profit share for the Company | $ 1,639 |  |

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