Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Income Before Income Tax

The Company’s income before income tax consists of:

	For the year ended December 31,
	2020		2019			2018
Non-PRC	$	5,866	$	(7,337	)	$	(16,308	)
PRC		210,751		78,157			62,891
Total	$	216,617	$	70,820		$	46,583

Schedule of Income Taxes Attributed

Income taxes attributed in China consists of:

	For the year ended December 31,
	2020			2019			2018
Current income tax expenses	$	(42,665	)	$	(11,290	)	$	(7,326	)
Deferred tax benefits		11,227			5,685			(3,146	)
Total income tax expense	$	(31,438	)	$	(5,605	)	$	(10,472	)

Schedule of Income Before Income Taxes

The following is a reconciliation of the Company’s total income tax expenses to the amount computed by applying the PRC statutory income tax rate of 25% to its income before income taxes for the years ended December 31, 2020, 2019 and 2018:

	For the year ended December 31,
	2020			2019			2018
Income before income taxes	$	216,617		$	70,820		$	46,583
Income tax expense at the PRC statutory rate		(54,154	)		(17,705	)		(11,646	)
International tax rate differential		(419	)		(1,827	)		(3,929	)
Super deduction for research and development expenses		7,229			2,310			1,835
Non-deductible expenses		(2,225	)		685			(1,865	)
Other adjustments		(1,002	)		(486	)		14
Effect of preferential tax rate		19,224			7,018			6,562
Change in valuation allowance		2,656			4,415			(1,429	)
Effect of PRC withholding tax		(2,747	)		(15	)		(14	)
Income tax expense	$	(31,438	)	$	(5,605	)	$	(10,472	)

Schedule Company's Deferred Tax Assets

The tax effects of temporary differences that give rise to the Company’s deferred tax assets are as follows:

	December 31,
	2020			2019
Inventories		1,212			394
Accrued expenses		17,240			4,184
Deferred government grants		2,838			985
Fixed assets		5,382			4,160
Tax losses carried forward		338			4,420
Less: valuation allowance		(119	)		(2,775	)
Deferred tax assets	$	26,891		$	11,368

Schedule of Changes in Unrecognized Tax Benefits

The changes in unrecognized tax benefits are as follows:

	For the year ended December 31,
	2020			2019			2018
Balance at January 1		904			1,681			1,873
Additions for tax positions of the current year		—			—			7
Additions for tax positions of the prior years		—			—			—
Settlement with the taxing authority		—			—			—
Lapse of statute of limitations		(343	)		(777	)		(199	)
Balance at December 31	$	561		$	904		$	1,681