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Summary of Significant Accounting Policies - Concentration of Risks (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Concentration Risk
Cash and cash equivalents	$ 2,627,410	$ 3,171,800	$ 3,869,564
Accounts receivable, net	$ 676,278	$ 358,027
Product Revenue | ASD Specialty Healthcare | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage	18.00%	12.40%
Product Revenue | McKesson | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage	16.90%
Product Revenue | Shanghai Pharmaceutical | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage	11.10%	14.20%
Product Revenue | Sinopharm | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage		16.00%
Product Revenue | China Resources | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage		11.40%
Accounts Receivable | Three Largest Customers | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage	51.00%
Accounts Receivable | Four Largest Customers | Customer Concentration Risk
Concentration Risk
Concentration risk, percentage		53.20%

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