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Cash Flow Information - Summary of Investing Activities with Partial Cash Payments (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Investing Activities With Partial Cash Payments [Line Items]      
Cash paid during the year $ 8,547 $ 14,537 $ 5,442
Purchase of PPE [Member]      
Disclosure Of Investing Activities With Partial Cash Payments [Line Items]      
Acquisition of property, plant and equipment 8,657 16,696  
Add: Payable for PPE or CIP - Opening 196 355  
Less: Payable for PPE or CIP - Ending (173) (196)  
Less: Prepayment for PPE & CIP - Opening (561) (2,388)  
Add: Prepayment for PPE & CIP - Ending 428 70  
Cash paid during the year $ 8,547 14,537  
Investment Properties [Member]      
Disclosure Of Investing Activities With Partial Cash Payments [Line Items]      
Acquisition of investment properties   5,197  
Less: acquisition by assuming directly related liabilities   (3,375)  
Less: noncash other operating income   (60)  
Cash paid during the year   $ 1,762