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Basis of Preparation - Additional Information (Detail) - $ / $
Dec. 31, 2020
Mar. 05, 2020
Disclosure of Detailed Information About Investment Property [line items]    
Exchange rate 19.8920  
Increase decrease in foreign currency exchange rate 7.00%  
Foreign Currency Exchange | Forecast    
Disclosure of Detailed Information About Investment Property [line items]    
Exchange rate   21.2770