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Net defined benefit assets (liability) - Summary of Expected Contribution Payments to Defined Benefit Plan (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of defined benefit plans [line items]    
Total expected payments $ 38,860 $ 34,064
Up to one year    
Disclosure of defined benefit plans [line items]    
Total expected payments 4,271 3,313
One to five years    
Disclosure of defined benefit plans [line items]    
Total expected payments 13,301 11,873
Over five years    
Disclosure of defined benefit plans [line items]    
Total expected payments $ 21,288 $ 18,878