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Property, Plant, and Equipment - Summary Of Depreciation Expenses in The Financial Statements (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]      
Depreciation expense R$ 938,841 R$ 844,647 R$ 812,489
Cost of products sold [member]      
Statement [Line Items]      
Depreciation expense 429,984 405,966 406,002
Selling and marketing expenses [member]      
Statement [Line Items]      
Depreciation expense 297,172 285,671 279,023
General and administrative expenses [member]      
Statement [Line Items]      
Depreciation expense R$ 50,247 R$ 48,635 R$ 52,568