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Taxation - Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred Tax Assets, Net [Abstract]    
Total deferred tax assets, net [1] $ 0 $ 0
Deferred Tax Liabilities, Net [Abstract]    
Within one year 180 176
After one year 750 909
Total deferred tax liabilities $ 930 $ 1,085
[1] As of December 31, 2020 and 2021, the deferred tax liabilities balances are expected to be recoverable as follows: