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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-Publisher FASB
-Name Accounting Standards Codification
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Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 45
-Paragraph 8A
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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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LONG-TERM INVESTMENTS - Available-for-sale securities (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 02, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
AVAILABLE-FOR-SALE SECURITY
Impairment loss		$ 0	$ 613	$ 0
Beijing Borderless
AVAILABLE-FOR-SALE SECURITY
Equity interest acquired	16.00%
Beijing Rui Le
AVAILABLE-FOR-SALE SECURITY
Equity method investments, cash consideration	$ 575
Impairment loss			$ 613