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Income Tax - Additional Information (Detail)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income tax [Line Items]      
Applicable tax rate 20.00% 20.00% 20.00%
China [Member]      
Income tax [Line Items]      
Applicable tax rate 25.00% 25.00% 25.00%