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INCOME TAXES - Schedule of Reconciliation Between the Income Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Loss before income tax	$ (158,167,000)	$ (206,483,000)	$ (33,624,000)
Tax credit at the U.S. federal corporate income tax rate of 21%	(33,214,000)	(43,361,000)	(7,061,000)
Tax effect of permanent differences – share-based compensation	20,098,000	17,408,000	0
Tax effect of permanent differences – others	(4,295,000)	(1,411,000)	(2,152,000)
Tax effect of income tax rate difference in other jurisdictions	1,657,000	6,287,000	2,511,000
Changes in valuation allowance	15,754,000	21,077,000	6,702,000
Others	33,000	0	1,000
Income tax expense	$ 33,000	$ 0	$ 1,000
Federal corporate income tax rate	21.00%	21.00%	21.00%

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Effective Income Tax Rate Reconciliation, Income Tax Expenses Amount

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Loss Before Incomes Taxes

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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-Topic 740
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-Section 50
-Paragraph 12
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 12
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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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