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Employee Benefit - Maturity Profile of Defined Benefit Obligation (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of defined benefit plans [Line Items]    
Expected payments $ 21,395 $ 25,106
Weighted average duration of defined benefit obligation 9 years  
Bottom of range [Member]    
Disclosure of defined benefit plans [Line Items]    
Weighted average duration of defined benefit obligation   9 years
Top of range [Member]    
Disclosure of defined benefit plans [Line Items]    
Weighted average duration of defined benefit obligation   10 years
Within one year [Member]    
Disclosure of defined benefit plans [Line Items]    
Expected payments $ 1,387 $ 1,384
Between 2 and 5 years [Member]    
Disclosure of defined benefit plans [Line Items]    
Expected payments 1,770 2,040
Between 6 and 10 years [Member]    
Disclosure of defined benefit plans [Line Items]    
Expected payments 4,345 4,568
Beyond 10 years [Member]    
Disclosure of defined benefit plans [Line Items]    
Expected payments $ 13,893 $ 17,114