XML 124 R115.htm IDEA: XBRL DOCUMENT
v3.25.3

Loans, financing and debentures - Roll-forward of loans, financing and debentures (Details) - BRL (R$) R$ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Disclosure of detailed information about borrowings [abstract] |  |
Opening balance | R$ 101,435,531 | R$ 77,172,692
Fundraising, net of issuance costs | 22,324,556 | 15,692,905
Interest accrued | 4,399,815 | 5,413,707
Monetary and exchange rate variation, net | (10,914,087) | 17,728,324
Settlement of principal | (19,600,013) | (9,410,807)
Settlement of interest | (4,753,232) | (5,241,389)
Amortization of fundraising costs | 75,916 | 80,099
Other Changes in Borrowings | (6,281) |
Closing balance | R$ 92,962,205 | R$ 101,435,531

X
- Definition The amount of interest and other costs that an entity incurs in connection with the borrowing of funds. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_BorrowingCostsIncurred
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amortization of debt issuance costs. + References No definition available. + Details
Name: | suz_ChangeInAmortizationOfFundraisingCosts
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in borrowings due to exchange differences on translation. + References No definition available. + Details
Name: | suz_IncreaseDecreaseInBorrowingsDueToExchangeDifferencesOnTranslation
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in borrowings due to interest costs paid. + References No definition available. + Details
Name: | suz_IncreaseDecreaseInBorrowingsDueToInterestCostsPaid
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition New loans and financing during the period. + References No definition available. + Details
Name: | suz_NewBorrowingsDuringPeriod
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other Changes in Borrowings - Loss on Liabilities versus Investments + References No definition available. + Details
Name: | suz_OtherChangesInBorrowings
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The reduction in the carrying amount of debt due to repayments of principal during the period. + References No definition available. + Details
Name: | suz_ReductionInCarryingAmountOfLoansAndFinancingDueToRepaymentsOfPrincipal
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration