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Income and Social Contribution Taxes - Additional Information (Detail)
R$ in Thousands, $ in Thousands
Dec. 31, 2020
BRL (R$)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
BRL (R$)
Dec. 31, 2019
USD ($)
Disclosure of related party [line items]        
Tax loss carryforwards related to income tax R$ 1,205,849 $ 232,041 R$ 816,802 $ 202,645
Deferred income and social contribution taxes 1,588,001   1,076,223  
IRPJ [member]        
Disclosure of related party [line items]        
Tax loss carryforwards related to income tax 1,687,482   1,268,964  
CSLL [member]        
Disclosure of related party [line items]        
Tax loss carryforwards related to income tax R$ 1,689,232   R$ 1,270,714