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Bonds and financing - Schedule of bonds and financing maturities (Details 4) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Bonds and financing      
Current bonds and financing R$ 93,779 R$ 281,491  
Total non-current liabilities 749,217 549,735  
Total bonds and financing R$ 842,996 R$ 831,226 R$ 793,341
Percentage of non-current bonds and financing 88.90% 66.10%  
Percentage of bonds and financing 100.00% 100.00%  
2023 [member]      
Bonds and financing      
Current bonds and financing R$ 93,779 R$ 281,491  
Total bonds and financing R$ 93,779    
Percentage of current bonds and financing 11.10% 33.90%  
2024 [member]      
Bonds and financing      
Total non-current liabilities R$ 499,217 R$ 51,063  
Total bonds and financing R$ 499,217    
Percentage of non-current bonds and financing 59.20% 6.10%  
2025 [member]      
Bonds and financing      
Total non-current liabilities R$ 250,000 R$ 498,672  
Percentage of non-current bonds and financing 29.70% 60.00%