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Third Party Agreements (Tables) | 12 Months Ended
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Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of Change in Company's Contract Liabilities | As of December 31, 2023 and 2022, there were no contract assets related to the Regeneron Agreement. The following tables present changes in the Company’s contract liabilities for the years ended December 31, 2023 and 2022 (in thousands):
Twelve Months Ended December 31, 2023 |  | Balance at Beginning of Period |  |  | Deductions |  |  | Balance at End of Period |
Contract liability |  | $ | — |  |  | $ | — |  |  | $ | — |
Twelve Months Ended December 31, 2022 |  | Balance at Beginning of Period |  |  | Deductions (1) |  |  | Balance at End of Period |
Contract liability |  | $ | 4,805 |  |  | $ | (4,805 | ) |  | $ | — |
Deductions to contract liabilities relate to deferred revenue recognized as revenue during the reporting period.

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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