Share-Based Compensation - Fair Value Measurement of Stock Options (Detail) |
12 Months Ended | |
|---|---|---|
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Dec. 31, 2025
USD ($)
yr
$ / shares
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Dec. 31, 2024
USD ($)
yr
$ / shares
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| Disclosure of Weighted average fair value [abstract] | ||
| Weighted-average fair value | $ | $ 40.26 | $ 35.93 |
| Share price | $ 176.06 | $ 157.02 |
| Exercise price | $ 176.06 | $ 157.02 |
| Risk-free interest rate | 4.10% | 4.20% |
| Dividend yield | 1.60% | 1.80% |
| Volatility factor | 22.00% | 23.00% |
| Expected life (in years) | yr | 5 | 5 |
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The option life of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The exercise price of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The percentage of an expected dividend used to calculate the fair value of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Disclosure of weighted average fair value. No definition available.
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