XML 201 R125.htm IDEA: XBRL DOCUMENT
v3.25.1

Intangible assets (Details Narrative) R$ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 22, 2024 BRL (R$) | Jul. 23, 2024 Municipalities | Dec. 31, 2024 BRL (R$) Municipalities | Dec. 31, 2023 BRL (R$) Municipalities | Dec. 31, 2022 BRL (R$) | Dec. 31, 2021 BRL (R$)
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Right of use |  |  | R$ 44,771,124 | R$ 44,012,858 | R$ 39,320,871 | R$ 36,503,834
Average amortization rate |  |  | 2.80% | 5.40% | 5.20% |
Sao Paulo [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Number of municipalities | Municipalities |  |  | 375 | 376 |  |
URAE-1 [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Number of municipalities | Municipalities |  | 371 |  |  |  |
SABESP [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Net revenue | R$ 2,280,000 |  |  |  |  |
Concession agreement – URAE-1 [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Right of use |  |  | R$ 338,740 |  |  |
Concession Agreements [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Right of use |  |  |  | R$ 43,738 | R$ 54,356 | 65,012
Program contracts [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Right of use |  |  |  | 330,941 | 168,216 | 180,669
Leases Related To Concession Agreements And Program Contracts [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Right of use |  |  |  | R$ 374,679 | R$ 222,572 | R$ 245,681

X
- References No definition available. + Details
Name: | sbs_AmortizationAverageRate
Namespace Prefix: | sbs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- References No definition available. + Details
Name: | sbs_IntangibleAssetsOtherThanGoodwill1
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_NetRevenue
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | sbs_NumberOfMunicipalitie
Namespace Prefix: | sbs_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sbs_SaoPauloMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sbs_URAE1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sbs_SABESPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sbs_AgreementsURAE1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sbs_ConcessionAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sbs_ProgramContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sbs_LeasesRelatedToConcessionAgreementsAndProgramContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |