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FAIR VALUE MEASUREMENT - Marketable securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
FAIR VALUE MEASUREMENT
Carried at fair value	$ 15,190	$ 18,337
Fair value (gain) losses	2,826	418	$ 4,744
Other Long-Term Investments	22,869	7,134
Unrealized gains	15,500	1,810
Carried at fair value	4,134	3,739
Gain of investments	$ 3,487	$ 904

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

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-Topic 320
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Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of investment in marketable security, classified as current.

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Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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Amount of long-term investments classified as other.

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