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Provisions and contingent liabilities - Summary of changes in other provisions (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of other provisions [abstract]      
Beginning of period R$ 146,173 R$ 97,678 R$ 43,541
Business combination 0 0 70,910
Increase in existing provisions, other provisions 94,482 22,398 25,954
New provisions, other provisions 98,292 47,273 65,731
Unused provision reversed, other provisions (94,659) (12,988) (55,791)
Payments of other provisions (52,637) (8,188) (52,667)
End of period R$ 191,651 R$ 146,173 R$ 97,678