Prepaid expenses and other current assets, net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deposit and prepayment, net of provision of $10,090 and $10,564, respectively (a)	$ 6,333	$ 7,726
Provision for deposit and prepayment for acquisitions	10,090	10,564
Other receivable, net of provision of $3,409 and $2,306, respectively (b)	1,300	1,858
Provision for other receivables	3,409	2,306
Total prepaid expenses and other current assets, net	$ 7,633	$ 9,584