Other current liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Other Liabilities Disclosure [Abstract]
Payroll	$ 18,976	$ 25,685
Accrued rebate to distributors	11,249	15,001
Tax payables	9,896	8,817
Accrued professional service fee	6,450	4,319
Other	5,827	4,421
Payables for purchase of property and equipment	1,212	2,568
Total	$ 53,610	$ 60,811