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Secondary Listing in Hong Kong (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 08, 2021	Dec. 31, 2021
Secondary Listing in Hong Kong
Underwriters borrowed (in shares)		1,650,000
Over-allotment option
Secondary Listing in Hong Kong
Shares lent to underwriters for settlement of over-allocations	1,453,620
Class A ordinary shares | Over-allotment option
Secondary Listing in Hong Kong
Shares lent to underwriters for settlement of over-allocations	1,650,000
Class A ordinary shares | HKEX
Secondary Listing in Hong Kong
Issuance of shares - global offering	5,500,000
Net proceeds from the global offering	$ 178.4
Related Parties [Member] | SINA | Class A ordinary shares | HKEX
Secondary Listing in Hong Kong
Issuance of shares - global offering	5,500,000

X

- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

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+ References

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- Definition

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+ References

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- Definition

Number of shares of stock issued to Underwriters as a settlement of over allocation.

+ References

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