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Related Party Transactions - Narrative (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of transactions between related parties [line items]      
Key management remuneration $ 15.6 $ 19.6  
Director's interest in issued share capital or voting control 1.00%    
Executive committee and non-executive directors      
Disclosure of transactions between related parties [line items]      
Key management personnel's beneficial interest in issued and listed share capital 0.10% 0.10% 0.10%