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BIOLOGICAL ASSETS - Roll-forward of biological assets (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Roll-forward of biological assets      
Opening balance R$ 18,278,582 R$ 14,632,186  
Additions 7,180,450 5,777,952  
Additions of merged companies 366,785  
Depletions (4,831,916) (3,680,997)  
Transfers 102,790 (136,297)  
Gain on fair value adjustment 1,431,530 1,989,831 R$ 1,199,759
Disposals (130,922) (128,370)  
Other write-offs (114,298) (175,723)  
Closing balance R$ 22,283,001 R$ 18,278,582 R$ 14,632,186
Effective area of forest from the year of planting 3 years    
Bottom of range      
Roll-forward of biological assets      
Average cycle of forest formation 6 years    
Top of range      
Roll-forward of biological assets      
Average cycle of forest formation 7 years