Risks and concentration - Additional information (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Risks and concentration
Accounts receivable current	$ 19,290	$ 1,514
Concentration of credit risk
Risks and concentration
Accounts receivable current	$ 19,290	$ 1,514

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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+ Details