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Share-Based Payment Arrangements - Summary of Measurement of Fair Values - Share Options (Detail) - Share options [member]	12 Months Ended
	Dec. 31, 2021 yr $ / shares	Dec. 31, 2020 yr $ / shares	Dec. 31, 2019 yr $ / shares
Statement [Line Items]
Fair value at grant date (weighted average)	$ 8.95	$ 2.46	$ 1.13
Share price at grant date (weighted average)	9.97	3.59	2.08
Exercise price at grant date (weighted average)	$ 1.29	$ 1.85	$ 1.87
Expected volatility (weighted average)	61.57%	56.46%	52.70%
Expected terms (years) (weighted average) | yr	6.2	6.0	6.2
Expected dividend (weighted average)	0.00%	0.00%	0.00%
Risk-free interest rate (weighted average)	1.24%	0.40%	1.80%

X

- Definition

Fair value at grant date (weighted average).

+ References

No definition available.

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- Definition

Statement.

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No definition available.

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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-URIDate 2021-03-24

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- Definition

The option life of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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- Definition

The exercise price of share options granted.

+ References

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-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

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