Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Amount of long-term investments classified as other.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 210
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-Section S99
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Certain risks and concentration - Fair value measurements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair value measurement
Debt investment				$ 49,008
Other long-term investments	$ 5,970	$ 12,114
Available-for-sale debt investment
Fair value measurement
Other long-term investments	3,000
Equity investments
Fair value measurement
Other long-term investments	2,970	12,114
Level 3
Fair value measurement
Debt investment	3,000	2,550
Other long-term investments	2,970	12,114	$ 8,651
Fair value recurring
Fair value measurement
Short-term investments	1,737	1,574
Debt investment	1,609	2,550
Other long-term investments		12,114
Contingent consideration payable		(4,507)
Financial asset measured using Level 3 input	9,316	11,731
Fair value recurring \| Available-for-sale debt investment
Fair value measurement
Other long-term investments	3,000
Fair value recurring \| Equity investments
Fair value measurement
Other long-term investments	2,970
Fair value recurring \| Level 1
Fair value measurement
Debt investment	1,609
Financial asset measured using Level 3 input	1,609
Fair value recurring \| Level 2
Fair value measurement
Short-term investments	1,737	1,574
Financial asset measured using Level 3 input	1,737	1,574
Fair value recurring \| Level 3
Fair value measurement
Debt investment		2,550
Other long-term investments		12,114
Contingent consideration payable		(4,507)
Financial asset measured using Level 3 input	5,970	$ 10,157
Fair value recurring \| Level 3 \| Available-for-sale debt investment
Fair value measurement
Other long-term investments	3,000
Fair value recurring \| Level 3 \| Equity investments
Fair value measurement
Other long-term investments	$ 2,970