Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2020

Noncontrolling Interest [Abstract]

Schedule of noncontrolling shareholders in MPS

	November 2, 2018
Expected liquidation date	December 31, 2021
Length of Holding Period Restriction in years	3.16
Volatility per year	48%
Dividend Yield expressed as % of stock price	0.00

Schedule of noncontrolling interests of Hongwei

	Amounts USD
Balances as of December 31, 2017	$	60,571
Transferred from liabilities(i)		18,841
Accrual for performance guarantee compensation		1,168
Net loss attributable to noncontrolling interests shareholders		(1,016	)
Foreign currency translation adjustment attributed to noncontrolling interest shareholders		1,874
Reclassification to redeemable noncontrolling interests(ii)		(81,438	)
Balances as of December 31, 2018	$	—

Schedule of noncontrolling interests of Hongwei

	Amounts USD
Balances as of December 31, 2017	$	(1,066	)
Net loss attributable to noncontrolling interests shareholders		(4,783	)
Foreign currency translation adjustment attributed to noncontrolling interest shareholders		185
Balances as of December 31, 2018	$	(5,664	)
Net loss attributable to noncontrolling interests shareholders		(2,123	)
Foreign currency translation adjustment attributed to noncontrolling interest shareholders		16
Acquisition of noncontrolling interests		7,771
Balances as of December 31, 2019	$	—