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Loss per share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of basic and diluted net loss per share

		Years ended December 31,
(In thousands of US$ except share data and per share data)		2020				2021				2022
Numerator:
Net loss			(63,415	)			(46,041	)			(19,853	)
Add: Accretion of Series A Preferred Shares			(1,293	)			—				—
Income allocation to participating preferred shareholders			—				—				—
Net loss attributable to ordinary shareholders of the Company   for computing basic and diluted net loss per share			(64,708	)			(46,041	)			(19,853	)
Denominator:
Weighted average number of ordinary shares outstanding used   in calculating basic and diluted net loss per share			259,852,204				285,979,036				312,485,140
Basic and diluted net loss per ordinary share			(0.25	)			(0.16	)			(0.06	)

Schedule of anti-dilutive instruments for diluted earnings per share

		Years ended December 31,
		2020				2021				2022
Restricted Shares			—				2,916,100				7,970,930
Share options awards			22,298,757				19,225,361				18,004,940
Total			22,298,757				22,141,461				25,975,870

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- References

No definition available.

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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