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Collaboration agreements - GlaxoSmithKline (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2022 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 06, 2022 performanceObligation
Collaboration agreements
Collaboration revenue		$ 12,598	$ 7,698	$ 24,136	$ 26,154
Deferred revenue		115,237	133,096	115,237	133,096	$ 125,314	$ 147,653
GSK Agreement
Collaboration agreements
Upfront payment received	$ 100,000
Collaboration arrangement, potential option exercise receivable	$ 90,000
Performance obligations identified | performanceObligation								2
Collaboration revenue		500	$ 500	600	$ 1,800
Deferred revenue		$ 94,000		$ 94,000		$ 94,600

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The amount the company is eligible to receive upon an option exercise as part of a collaboration arrangement.

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The number of material performance obligations identified under a collaboration arrangements related to designated targets

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Cash received from collaborators during the current period.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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