Leases - Additional lease related information (Details) - Office and laboratory space	Sep. 30, 2026	Dec. 31, 2025
Lessee, Lease, Description [Line Items]
Weighted-average remaining lease term (in years)	6 years 3 months 21 days	7 years 3 months
Weighted-average discount rate	8.80%	8.70%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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