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Investment Properties - Net Book Value of Investment Properties (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about investment property [Line Items]      
Investment properties $ 5,809 $ 6,378 $ 730
Gross carrying amount [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 6,598 7,005  
Accumulated depreciation [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties (789) (627)  
Land [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 418 466  
Land [Member] | Gross carrying amount [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 418 466  
Office buildings for rent [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 200 240  
Office buildings for rent [Member] | Gross carrying amount [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 716 742  
Office buildings for rent [Member] | Accumulated depreciation [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties (516) (502)  
Warehouse      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 5,096 5,577  
Warehouse | Gross carrying amount [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 5,366 5,701  
Warehouse | Accumulated depreciation [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties (270) (124)  
Land leasehold right [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 95 95  
Land leasehold right [Member] | Gross carrying amount [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties 98 96  
Land leasehold right [Member] | Accumulated depreciation [Member]      
Disclosure of detailed information about investment property [Line Items]      
Investment properties $ (3) $ (1)