v3.26.1
Intangible assets (Details 2) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill R$ 3,172,403 R$ 2,926,302 R$ 2,571,069
Additions 1,236,820 1,188,762  
Disposals (1,498) (108)  
Gross carrying amount [member]      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 6,944,472 5,709,150 4,520,496
Cost 1,235,322 1,188,654  
Accumulated Amortisation (989,221) (833,421)  
Accumulated amortization      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill (3,772,069) (2,782,848) (1,949,427)
Disposals 1,338 108  
Amortization (990,559) (833,529)  
Expenditures related to software and technology      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 2,785,167 2,522,021 2,130,429
Additions 1,184,243 1,154,895  
Disposals (645) 0  
Expenditures related to software and technology | Gross carrying amount [member]      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 6,225,793 5,042,195 3,887,300
Cost 1,183,598 1,154,895  
Accumulated Amortisation (920,452) (763,303)  
Expenditures related to software and technology | Accumulated amortization      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill (3,440,626) (2,520,174) (1,756,871)
Disposals 491 0  
Amortization (920,943) (763,303)  
Software licenses      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 154,321 160,192 183,438
Additions 52,577 33,867  
Disposals (839) (108)  
Software licenses | Gross carrying amount [member]      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 421,058 369,320 335,561
Cost 51,738 33,759  
Accumulated Amortisation (57,609) (57,005)  
Software licenses | Accumulated amortization      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill (266,737) (209,128) (152,123)
Disposals 839 108  
Amortization (58,448) (57,113)  
Goodwill      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 227,066 227,066 227,066
Additions 0 0  
Disposals 0 0  
Goodwill | Gross carrying amount [member]      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 227,066 227,066 227,066
Cost 0 0  
Accumulated Amortisation 0 0  
Goodwill | Accumulated amortization      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 0 0 0
Disposals 0 0  
Amortization 0 0  
Other      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 5,849 17,023 30,136
Additions 0 0  
Disposals (14) 0  
Other | Gross carrying amount [member]      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill 70,555 70,569 70,569
Cost (14) 0  
Accumulated Amortisation (11,160) (13,113)  
Other | Accumulated amortization      
Reconciliation of changes in goodwill [abstract]      
Intangible assets and goodwill (64,706) (53,546) R$ (40,433)
Disposals 8 0  
Amortization R$ (11,168) R$ (13,113)