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Related-Party Transactions - Narrative (Details) ft² in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2021 USD ($) ft²
Related Party Transaction [Line Items]
Accrued liabilities and other current liabilities	$ 40,411	$ 28,126
Other non-current liabilities	$ 3,253	3,664
Related Party
Related Party Transaction [Line Items]
Rentable area (in square feet) \| ft²				18
Related Party \| Minimum \| Lyell Immunopharma \| GSK
Related Party Transaction [Line Items]
Ownership interest (as a percent)	10.00%
Related Party \| Sonoma
Related Party Transaction [Line Items]
Rentable area (in square feet) \| ft²				18
Tenant improvements				$ 4,600
Accrued liabilities and other current liabilities	$ 500	500
Other non-current liabilities	2,500	3,000
Related Party \| GSK
Related Party Transaction [Line Items]
Recognized revenue	$ 0	$ 0	$ 84,700