XML 110 R101.htm IDEA: XBRL DOCUMENT
v3.25.3

Biological assets - Roll-forward of biological assets (Details) - BRL (R$) R$ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Disclosure of reconciliation of changes in biological assets [line items] |  |  |
Opening Balance | R$ 22,283,001 | R$ 18,278,582 | R$ 18,278,582
Additions from purchases, biological assets | 6,281,750 |  | 7,180,450
Additions of merged companies |  |  | 366,785
Depletions | (3,936,128) |  | (4,831,916)
Transfers | 15,233 |  | 102,790
Gain (loss) on fair value adjustments | 73,248 | R$ (539,003) | (1,431,530)
Disposals | (23,383) |  | (130,922)
Write-offs | (101,764) |  | (114,298)
Closing Balance | R$ 24,445,461 |  | R$ 22,283,001

X
- Definition The amount of additions to biological assets resulting from purchases. [Refer: Biological assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50_b&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_b&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_b&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_AdditionsFromPurchasesBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of additions to biological assets, other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Biological assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The decrease in biological assets due to the detachment of produce from the assets or the cessation of the assets' life processes. [Refer: Biological assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50_d&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_d&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_d&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_DecreaseDueToHarvestBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 No definition available. + Details
Name: | ifrs-full_DisclosureOfReconciliationOfChangesInBiologicalAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The decrease in biological assets resulting from disposals. [Refer: Biological assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50_c&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_c&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_c&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_DisposalsBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50_a&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_a&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_a&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_GainsLossesOnFairValueAdjustmentBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in biological assets resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Biological assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 41 -IssueDate 2025-01-01 -Paragraph 50 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=41&code=ifrs-tx-2025-en-r&anchor=para_50_g&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_g&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 273 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_273_g&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of non-current biological assets. [Refer: Biological assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 54 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_f&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_NoncurrentBiologicalAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The increase (decrease) in biological assets resulting from transfers. + References No definition available. + Details
Name: | suz_IncreaseDecreaseThroughTransfersBiologicalAssets
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration