The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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LONG-TERM INVESTMENT - Narrative (Details) ¥ in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 CNY (¥)
Investments [Abstract]
Income (loss) from equity method investments	$ (160)	$ 1,251	$ 3,728	$ 1,652
Dividend from long-term investments (note 14)	5,147		5,147	$ 0
Equity Investment \| Ninebell
Investments [Abstract]
Equity method investments	$ 1,200		$ 1,200
Equity Investment \| Ninebell \| Class A Common Stock
Investments [Abstract]
Ownership percentage	20.00%		20.00%		20.00%
Equity Investment \| Wooil
Investments [Abstract]
Equity method investments	$ 1,000		$ 1,000
Equity Investment \| Wooil \| Class A Common Stock
Investments [Abstract]
Ownership percentage	20.00%		20.00%		20.00%
Equity Investment \| Shengyi
Investments [Abstract]
Equity method investments	$ 109		$ 109
Equity Investment \| Shengyi \| Class A Common Stock
Investments [Abstract]
Ownership percentage	14.00%		14.00%		14.00%
Equity Investment \| Hefei Shixi
Investments [Abstract]
Equity method investments	$ 4,200		$ 4,200		¥ 30,000
Equity Investment \| Hefei Shixi \| Class A Common Stock
Investments [Abstract]
Ownership percentage	10.00%		10.00%		10.00%