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Trade receivables (Details 2) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Maturities of trade receivables        
Total past due R$ 148,434 R$ 87,957    
Related parties 7,177 46,824    
Impairment losses on trade receivables (69,481) (46,500) R$ (32,055) R$ (22,524)
Total 649,135 505,514    
Not yet due        
Maturities of trade receivables        
Total past due 563,005 417,233    
Up to 30 days        
Maturities of trade receivables        
Total past due 19,435 9,657    
From 31 to 60 days        
Maturities of trade receivables        
Total past due 22,637 10,331    
From 61 to 90 days        
Maturities of trade receivables        
Total past due 12,193 7,366    
From 91 to 180 days        
Maturities of trade receivables        
Total past due 42,169 21,154    
From 181 to 360 days        
Maturities of trade receivables        
Total past due 31,357 23,852    
Over 360 days        
Maturities of trade receivables        
Total past due R$ 20,643 R$ 15,597