Property and Equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Total property and equipment	$ 88,308	$ 71,210
Less: accumulated depreciation and amortization	(34,777)	(25,517)
Property and equipment, net	53,531	45,693
Laboratory equipment
Property, Plant, and Equipment [Line Items]
Total property and equipment	42,803	32,197
Leasehold improvements
Property, Plant, and Equipment [Line Items]
Total property and equipment	14,815	14,802
Computer equipment
Property, Plant, and Equipment [Line Items]
Total property and equipment	13,954	10,951
Building under finance lease
Property, Plant, and Equipment [Line Items]
Total property and equipment	4,529	4,529
Equipment under finance leases
Property, Plant, and Equipment [Line Items]
Total property and equipment	0	689
Furniture, fixtures and other equipment
Property, Plant, and Equipment [Line Items]
Total property and equipment	674	595
Construction in-progress
Property, Plant, and Equipment [Line Items]
Total property and equipment	$ 11,533	$ 7,447