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Provision for asset retirement obligation - Changes in the provision for asset retirement obligation (Detail) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of other provisions [line items]      
Beginning balance R$ 932,185    
Additions (new tanks) 239,013    
Expenditure with tanks removed (84,939)    
Accretion expense 41,720    
Ending Balance 1,040,172 R$ 932,185  
Asset Retirement Obligation [member]      
Disclosure of other provisions [line items]      
Beginning balance 56,711 53,435 R$ 51,242
Additions (new tanks) 158 451 163
Expenditure with tanks removed (9,528) (2,773) (4,306)
Accretion expense 4,417 5,598 6,336
Ending Balance 51,758 R$ 56,711 R$ 53,435
Current 5,063    
Non-current R$ 46,695