XML 116 R107.htm IDEA: XBRL DOCUMENT
v3.25.3

Property, plant and equipment - Capitalized Expenses (Details) - BRL (R$) R$ in Thousands | 9 Months Ended | 12 Months Ended
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Sep. 30, 2025 | Dec. 31, 2024
Disclosure of detailed information about property, plant and equipment [abstract] |  |
Property, Plant and Equipment, Interest Costs Capitalised | R$ 205,409 | R$ 959,967
Average Capitalisation Rate Per Month, Property, Plant and Equipment | 13.14% | 11.17%

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

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- Definition The capitalization rate per month. + References No definition available. + Details
Name: | suz_AverageCapitalisationRatePerMonthPropertyPlantAndEquipment
Namespace Prefix: | suz_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition of property, plant and equipment. + References No definition available. + Details
Name: | suz_PropertyPlantAndEquipmentInterestCostsCapitalised
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration