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Income and Social Contribution Taxes - Additional Information (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Disclosure of related party [line items]    
Deferred income and social contribution taxes R$ 1,076,223 R$ 959,945
offshore subsidiaries [member]    
Disclosure of related party [line items]    
Tax loss carryforwards related to income tax 878,470 620,906
IRPJ [member]    
Disclosure of related party [line items]    
Tax loss carryforwards related to income tax 1,268,964 873,718
CSLL [member]    
Disclosure of related party [line items]    
Tax loss carryforwards related to income tax R$ 1,270,714 R$ 876,315