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Collaborative and Licensing Arrangements - Funding Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Research and Development Arrangement, Contract to Perform for Others
Research and development expense	$ 1,953,295	$ 1,778,594	$ 1,640,508
Amgen, Inc
Research and Development Arrangement, Contract to Perform for Others
BeiGene’s portion of the development funding	148,391	108,608	195,357
Less: Amortization of research and development cost share liability	73,226	55,294	96,402
Research and development expense	75,165	$ 53,314	$ 98,955
Remaining portion of development funding cap	$ 335,261

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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