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Net defined benefit assets (liability) - Summary of Employee Defined Benefit Plan (Detail) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Disclosure of net defined benefit asset (liability) [line items]    
Fair value of plan assets $ 37,159 $ 31,197
Employee benefits liability (31,813) (30,693)
Net defined benefit asset 5,346 504
Defined benefit obligation    
Disclosure of net defined benefit asset (liability) [line items]    
Employee benefits liability (31,440) (30,332)
Other employee benefits    
Disclosure of net defined benefit asset (liability) [line items]    
Employee benefits liability $ (373) $ (361)