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Collaborations - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 21, 2024 | May 31, 2021 | Mar. 31, 2019 | Mar. 31, 2024 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Collaboration revenue |  |  |  |  | $ 7,695,000 | $ 7,690,000 |
Toray Agreement |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Contract liabilities |  |  |  |  | 820,000 | 905,000 | $ 1,502,000
Variable consideration related to reimbursements for research and development services |  |  | $ 2,100,000 |  |  |  |
Contract liability, current |  |  |  |  | 300,000 | 400,000 |
Contract liability, non-current |  |  |  |  | 500,000 | 500,000 |
Revenue |  |  |  |  | 300,000 | 900 |
Toray Agreement | Prepaid Expenses and Other Current Assets |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Research and development services receivables |  |  |  |  | 45,000 | 7,500 |
Genmab Agreement |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Contract liabilities |  |  |  |  | 1,173,000 | 5,730,000 | 6,664,000
Upfront payment received |  | $ 10,000,000 |  |  |  |  |
Allocated from stock purchase agreement |  | 1,400,000 |  |  |  |  |
Variable consideration related to reimbursements for research and development services |  | 12,400,000 |  |  |  |  |
Contract liability, current |  |  |  |  | 100,000 | 2,600,000 |
Contract liability, non-current |  |  |  |  | 1,100,000 | 3,100,000 |
Collaboration revenue |  |  |  |  | 7,400,000 | 3,300,000 |
Potential future sale milestone payments |  | $ 160,000,000 |  |  |  |  |
Genmab Agreement | Prepaid Expenses and Other Current Assets |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Research and development services receivables |  |  |  |  | 600,000 | 800,000 |
Genmab Agreement | Common Stock |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Common stock sold |  | 41,052 |  |  |  |  |
Consideration in excess of fair value |  | $ 1,400,000 |  |  |  |  |
Purchase price under Stock Purchase Agreement |  | 15,000,000 |  |  |  |  |
Genmab Agreement | Maximum |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Potential future sale milestone payments |  | $ 125,000,000 |  |  |  |  |
Innovent Agreement |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Contract liabilities |  |  |  |  | 0 | 0 | $ 3,142,000
Upfront payment received | $ 5,000,000 |  |  |  |  |  |
Collaboration revenue |  |  |  |  | $ 0 | $ 3,400,000 |
One-time payment receivable |  |  |  | $ 4,700,000 |  |  |
Deferred revenue |  |  |  | 2,500,000 |  |  |
Innovent Agreement | Other Income |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
One-time payment receivable |  |  |  | 4,700,000 |  |  |
Innovent Agreement | Maximum |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Potential future sale milestone payments |  |  |  | $ 112,700,000 |  |  |
Series T Convertible Preferred Stock | Toray Agreement |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |
Common stock sold |  |  | 35,875 |  |  |  |
Consideration in excess of fair value |  |  | $ 1,500,000 |  |  |  |
Allocated from stock purchase agreement |  |  | $ 1,500,000 |  |  |  |

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