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v3.25.2

Related parties - Remuneration of key personnel (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of transactions between related parties [abstract] |  |  |
Short-term benefits | R$ 50,396 | R$ 77,269 | R$ 35,263
Benefits, such as vehicle use, reimbursement, travel, and others | R$ 2,599 | R$ 2,025 | R$ 833

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- Definition The amount of compensation to key management personnel in the form of benefits, such as vehicle use, reimbursement, travel, and others. + References No definition available. + Details
Name: | ambi_KeyManagementPersonnelCompensationVehicleUseReimbursementTravelAndOthers
Namespace Prefix: | ambi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]] + References No definition available. + Details
Name: | ambi_ShortTermEmployeeBenefit
Namespace Prefix: | ambi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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