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Provision for Asset Retirement Obligation - Fuel Tanks - Changes in the provision for asset retirement obligation (Detail) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of other provisions [line items]      
Beginning balance R$ 898,045    
Additions (new tanks) 188,794    
Expenditure with tanks removed (25,184)    
Accretion expense 15,608    
Ending Balance 932,185 R$ 898,045  
Asset Retirement Obligation [member]      
Disclosure of other provisions [line items]      
Beginning balance 53,435 51,242 R$ 54,667
Additions (new tanks) 451 163 290
Expenditure with tanks removed (2,773) (4,306) (5,456)
Accretion expense 5,598 6,336 1,741
Ending Balance 56,711 R$ 53,435 R$ 51,242
Current 4,632    
Non-current R$ 52,079