Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Schedule of accounts receivable

	December 31, 2020			December 31, 2021
Accounts receivable	$	81,345		$	93,722
Allowance for doubtful accounts		(5,047	)		(5,005	)
Accounts receivable, net	$	76,298		$	88,717

Schedule of allowance for doubtful accounts

	Year Ended December 31,
	2019			2020			2021
Balance at beginning of the period	$	10,111		$	5,537		$	5,047
(Reserve)/Charge to expenses		(4,250	)		(240	)		721
Write off		(233	)		(493	)		(849	)
Exchange difference		(91	)		243			86
Balance at end of the period	$	5,537		$	5,047		$	5,005