Financial Risk and Fair Value Disclosures - Summary of Significant Unobservable Inputs of Fair Value Measurement in Level 3 Fair Value Hierarchy (Detail)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Convertible bonds [member] \| Binomial Tree Valuation Model [Member] \| Historical volatility for shares, measurement input [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Significant unobservable input entity own equity instruments volatility		54.85%
Embedded Derivatives In Exchangeable Bonds [member] \| Binomial Tree Valuation Model [Member] \| Historical volatility for shares, measurement input [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Significant unobservable input entity own equity instruments volatility	25.06%	28.06%
Bottom of range [member] \| Equity price risk [member] \| Unlisted equity securities [member] \| Discount for lack of marketability [member] \| Market approach [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Discount for lack of marketability significant unobservable inputs entity own equity instruments	0.00%	0.00%
Top of range [member] \| Equity price risk [member] \| Unlisted equity securities [member] \| Discount for lack of marketability [member] \| Market approach [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Discount for lack of marketability significant unobservable inputs entity own equity instruments	60.00%	50.00%