v3.26.1
EMPLOYEE BENEFIT PLANS - Roll-forward of actuarial liability (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of defined benefit plans [line items]    
Opening Balance R$ 721,560 R$ 833,683
Interest on actuarial liabilities 77,348 73,853
Current service cost 1,939 1,997
Actuarial (gain) / loss – experience (13,340) (125)
Actuarial (gain) / loss – financial assumptions (6,026) (137,649)
Benefits paid directly by entity (52,390) (50,199)
Closing Balance R$ 741,143 R$ 721,560