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Recoverable taxes - Schedule of estimated recovery of ICMS credits (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision R$ 4,203,639 R$ 3,783,271
ICMS [member]    
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision 1,365,128 R$ 1,312,990
ICMS [member] | Up to 1 year    
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision 508,145  
ICMS [member] | 1 to 2 years    
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision 381,560  
ICMS [member] | 2 to 3 years    
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision 238,701  
ICMS [member] | From 3 to 5 Years    
Disclosure of estimated recovery of ICMS credits [line items]    
Total recoverable ICMS, net of provision R$ 236,722