XML 86 R67.htm IDEA: XBRL DOCUMENT
v3.25.2

Basis of measurement - Interest rate risk (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Percentage of entity's revenue | 10.00% |
Short term fund balance | R$ 222,062 | R$ 143,473
Possible |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Percentage of impairment in the variables | 25.00% |
Remote |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Percentage of impairment in the variables | 50.00% |
Interest rate risk [member] | Base |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | R$ (1,233,258) | (1,115,580)
Interest rate risk [member] | Base | CDI - Interest earning bank deposits |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | 220,781 | 132,072
Interest rate risk [member] | Base | CDI - Loans and Financing |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (990,144) | (701,902)
Interest rate risk [member] | Base | CDI - Debentures |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (463,895) | (545,750)
Interest rate risk [member] | Probable |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (151,074) | (131,081)
Interest rate risk [member] | Probable | CDI - Interest earning bank deposits |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | 27,046 | 15,518
Interest rate risk [member] | Probable | CDI - Loans and Financing |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (121,293) | (82,473)
Interest rate risk [member] | Probable | CDI - Debentures |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (56,827) | (64,126)
Interest rate risk [member] | Possible |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (188,842) | (163,851)
Interest rate risk [member] | Possible | CDI - Interest earning bank deposits |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | 33,808 | 19,398
Interest rate risk [member] | Possible | CDI - Loans and Financing |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (151,616) | (103,091)
Interest rate risk [member] | Possible | CDI - Debentures |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (71,034) | (80,158)
Interest rate risk [member] | Remote |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (226,612) | (196,622)
Interest rate risk [member] | Remote | CDI - Interest earning bank deposits |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | 40,569 | 23,277
Interest rate risk [member] | Remote | CDI - Loans and Financing |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | (181,940) | (123,710)
Interest rate risk [member] | Remote | CDI - Debentures |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Risk exposure associated with instruments sharing characteristic | R$ (85,241) | R$ (96,189)

X
- Definition Represents the percentage of impairment in the variables. + References No definition available. + Details
Name: | ambi_PercentageOfImpairmentInVariables
Namespace Prefix: | ambi_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents short term fund balance + References No definition available. + Details
Name: | ambi_ShortTermFundBalance
Namespace Prefix: | ambi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 34 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_34&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PercentageOfEntitysRevenue
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Classes of financial instruments [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph B8 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_StatementScenarioAxis=ambi_ScenarioPossibleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=ambi_ScenarioRemoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=ambi_ScenarioBaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ambi_CdiAndInterestEarningBankDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ambi_CdiAndLoansAndFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ambi_CdiDebenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=ambi_ScenarioProbableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |