Commitments and contingent liabilities - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 10, 2018	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Lease and rental expense		$ 12,038	$ 9,244	$ 8,196
Pledged bank deposits		5,114	4,909
Operating lease commitments		5,554	$ 5,285
Purchase obligation		$ 38,944
Zai License and Collaboration Agreement
Loss Contingencies [Line Items]
Non-refundable up-front license fee, amount	$ 15,000
Maximum | Zai License and Collaboration Agreement
Loss Contingencies [Line Items]
Regulatory and commercial milestone payments	$ 78,000
Minimum | Zai License and Collaboration Agreement | License
Loss Contingencies [Line Items]
Percentage of tiered royalties rates on net sales	10.00%