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Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property Plant And Equipment [Line Items]
Total property and equipment	$ 196,891	$ 183,519
Less accumulated depreciation	(88,601)	(72,107)
Property and equipment, net	108,290	111,412
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total property and equipment	102,248	101,195
Lab Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	76,400	71,788
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	4,836	4,836
Computer Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	3,170	3,170
Construction in Process
Property Plant And Equipment [Line Items]
Total property and equipment	$ 10,237	$ 2,530

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