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Business combinations (Details Text) - Concil - BRL (R$)
R$ in Thousands
12 Months Ended
Aug. 12, 2021
Dec. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Business combinations (Details Text) [Abstract]        
Ownership  interest acquired 100.00% 100.00% 100.00%  
Consideration paid (received) R$ 43,896      
Value of net assets 23,165      
Goodwill       R$ 20,731
Cash transferred 35,000      
Liabilities incurred R$ 8,896      
Contingent liabilities recognised as of acquisition date       7,848
Bottom of range        
Business combinations (Details Text) [Abstract]        
Estimated GDP growth rate   0.020    
Estimated discount rate based on WACC   0.175    
Top of range        
Business combinations (Details Text) [Abstract]        
Estimated GDP growth rate   0.045    
Estimated discount rate based on WACC   0.195    
Customer-related intangible assets        
Business combinations (Details Text) [Abstract]        
Intangible assets       3,839
Non-compete Agreements        
Business combinations (Details Text) [Abstract]        
Intangible assets       940
Computer software        
Business combinations (Details Text) [Abstract]        
Intangible assets       R$ 33,136