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Inventories (Details) - BRL (R$) R$ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Inventories [Line Items]
Current finished goods
Current work in progress	132,929	135,380
Spare parts and other	1,358,700	1,302,534
(-) Expected losses	(97,165)	(97,934)
Inventories	8,619,236	7,962,324
Pulp | Country of domicile
Inventories [Line Items]
Current finished goods	763,294	801,623
Pulp | Foreign countries
Inventories [Line Items]
Current finished goods	2,019,265	1,510,985
Paper | Country of domicile
Inventories [Line Items]
Current finished goods	689,290	561,409
Paper | Foreign countries
Inventories [Line Items]
Current finished goods	498,150	362,027
Wood
Inventories [Line Items]
Current work in progress	2,207,955	2,287,406
Operating supplies and packaging
Inventories [Line Items]
Current work in progress	R$ 1,046,818	R$ 1,098,894

X

- Definition

A classification of current inventory representing the amount of goods that have completed the production process and are held for sale in the ordinary course of business. [Refer: Inventories]

+ References

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X

- Definition

The amount of current inventories. [Refer: Inventories]

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- Definition

A classification of current inventory representing the amount of interchangeable parts that are kept in an inventory and are used for the repair or replacement of failed parts. [Refer: Inventories]

+ References

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- Definition

A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories]

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Inventories [Line Items]

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