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Collaboration and Licensing Agreements - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
May 31, 2022 | Oct. 31, 2020 | May 31, 2018 | Mar. 31, 2024 | Mar. 31, 2023 | May 17, 2018
Collaboration and Licensing Agreements: |  |  |  |  |  |
Revenue from contract with customer |  |  |  | $ 2,135 | $ 6,165 |
Vifor Fresenius Medical Care Renal Pharma Ltd Agreement No 2 |  |  |  |  |  |
Collaboration and Licensing Agreements: |  |  |  |  |  |
Percentage of net profit sharing |  |  | 50.00% |  |  |
CSL Vifor Maximum | Vifor Fresenius Medical Care Renal Pharma Ltd Agreement No 1 |  |  |  |  |  |
Collaboration and Licensing Agreements: |  |  |  |  |  |
Potential sales-based milestone payments |  | $ 240,000 |  |  |  |
CSL Vifor | Vifor Fresenius Medical Care Renal Pharma Ltd Agreement No 1 |  |  |  |  |  |
Collaboration and Licensing Agreements: |  |  |  |  |  |
Percentage of net profit sharing | 40.00% |  |  |  |  |
Affiliated Entity | CSL Vifor | Vifor Fresenius Medical Care Renal Pharma Ltd Agreement No 1 |  |  |  |  |  |
Collaboration and Licensing Agreements: |  |  |  |  |  |
Percentage of net profit sharing | 60.00% |  |  |  |  |
Affiliated Entity | Vifor Fresenius Medical Care Renal Pharma Ltd. | Maximum | Regulatory and Commercial Milestones [Member] |  |  |  |  |  |
Collaboration and Licensing Agreements: |  |  |  |  |  |
Potential milestone payments |  |  |  |  |  | $ 440,000

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