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Employee benefits plans (Tables)
9 Months Ended
Sep. 30, 2025
Disclosure of information about defined benefit plans [abstract]  
Disclosure of net defined benefit liability (asset) [text block]
09/30/202512/31/2024
Opening balance721,560 833,683 
Interest on actuarial liabilities58,011 73,853 
Current service cost1,455 1,997 
Actuarial loss – experience (125)
Actuarial gain – financial assumptions (137,649)
Benefits paid directly by entity(38,433)(50,199)
Closing balance742,593 721,560