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Trade Receivables and Reseller Financing - Trade receivables (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Summary of trade receivables [line items]    
Trade receivables, gross of loss allowance for expected credit losses R$ 3,813,350 R$ 3,773,218
Loss allowance for expected credit losses 185,278 197,011
Current 3,375,246 3,318,927
Non-current 63,749 72,195
Trade receivables [member]    
Summary of trade receivables [line items]    
Loss allowance for expected credit losses 374,355 382,096
Trade receivables 3,438,995 3,391,122
Current 3,375,246 3,318,927
Non-current 63,749 72,195
Trade receivables [member] | Domestic customers [member]    
Summary of trade receivables [line items]    
Trade receivables, gross of loss allowance for expected credit losses 3,805,756 3,443,641
Related parties 57 151
Trade receivables [member] | foreign customers [member]    
Summary of trade receivables [line items]    
Trade receivables, gross of loss allowance for expected credit losses 3,137 326,442
Related parties R$ 4,400 R$ 2,984