Share-based Payment - Summary of Options Granted Priced Using Binomial Option Pricing Model (Detail) - Performance Share Units	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Maximum [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Risk-free rate	3.37%	1.70%
Expected volatility rate	60.05%	59.70%
Expected dividend yield	3.01%	3.00%
Minimum [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Risk-free rate	1.36%	0.94%
Expected volatility rate	55.40%	55.40%
Expected dividend yield	0.00%	0.00%

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
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-URIDate 2022-03-24

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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]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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

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