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Taxes to Recover - Summary of Recoverable Taxes (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Summary of recoverable taxes [line items]    
Recoverable taxes R$ 1,889,695 R$ 1,386,879
Current 1,122,335 639,699
Non-current 767,360 747,180
ICMS [member]    
Summary of recoverable taxes [line items]    
Recoverable taxes 914,066 710,669
Provision for icms losses [member]    
Summary of recoverable taxes [line items]    
Recoverable taxes (41,396) (99,187)
PIS and COFINS [member]    
Summary of recoverable taxes [line items]    
Recoverable taxes 930,570 720,731
Value Added Tax [member]    
Summary of recoverable taxes [line items]    
Recoverable taxes 29,707 31,678
Others [member]    
Summary of recoverable taxes [line items]    
Recoverable taxes R$ 56,748 R$ 22,988