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Financial Instruments - Schedule of leverage ratio (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Financial Instruments        
Gross debt R$ 15,787,262 R$ 13,291,951    
Cash, cash equivalents, and short-term investments 8,031,684 7,170,563    
Net debt 7,755,578 6,121,388    
Equity R$ 15,823,444 R$ 14,029,826 R$ 12,174,968 R$ 10,469,240
Leverage ratio 49.01% 43.63%