FINANCIAL INSTRUMENTS - Sensitivity analysis (Details) R$ in Thousands	12 Months Ended
Dec. 31, 2025 BRL (R$)	Dec. 31, 2024 BRL (R$)
Foreign currency sensitivity analysis
FINANCIAL INSTRUMENTS
Percentage of change	5.00%
Foreign currency sensitivity analysis \| Loans and financing
FINANCIAL INSTRUMENTS
Percentage of change	5.00%	5.00%
Impact on income statement based on change in assumption	R$ 217,347	R$ 124,447
Foreign currency sensitivity analysis \| Imports/Exports
FINANCIAL INSTRUMENTS
Percentage of change	5.00%	5.00%
Impact on income statement based on change in assumption	R$ 13,370	R$ 44,777
Foreign currency sensitivity analysis \| Currency forward contracts
FINANCIAL INSTRUMENTS
Nominal amount exposure to forward contracts	0	0
Foreign currency sensitivity analysis \| Swaps USD x DI
FINANCIAL INSTRUMENTS
Percentage of change	5.00%	5.00%
Impact on income statement based on change in assumption	R$ 8,643	R$ 9,556
Foreign currency sensitivity analysis \| Swaps IPCA x DI
FINANCIAL INSTRUMENTS
Percentage of change	5.00%	5.00%
Impact on income statement based on change in assumption	R$ 252	R$ 0
Interest rate sensitivity analysis
FINANCIAL INSTRUMENTS
Interest rate change (as a percent)	0.10%	0.10%
Impact on income statement based on change in assumption	R$ 43,547	R$ 44,299
Sensitivity analysis of changes in prices of products sold
FINANCIAL INSTRUMENTS
Percentage of change	1.00%	1.00%
Impact on income statement based on change in assumption	R$ 698,585	R$ 670,267
Sensitivity analysis of changes in raw material and commodity prices
FINANCIAL INSTRUMENTS
Percentage of change	1.00%	1.00%
Impact on income statement based on change in assumption	R$ 445,379	R$ 419,850
Commodity contracts
FINANCIAL INSTRUMENTS
Percentage of change	5.00%	5.00%
Impact on income statement based on change in assumption	R$ 4,130	R$ 3,113

Amount of impact on income statement based on the change in assumption in a sensitivity analysis.

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- Definition

The interest rate change assumption used to calculate the income statement impact in a sensitivity analysis.

+ References

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- Definition

The percentage of change assumption used to calculate the income statement impact in a sensitivity analysis.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

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- Definition

The nominal amount of a hedging instrument. [Refer: Hedging instruments [domain]]

+ References

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