XML 122 R108.htm IDEA: XBRL DOCUMENT
v3.21.1

15 Intangible assets (Details 2) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Summary of intangible assets [Line Items] |  |
Current liabilities | R$ 130,207 | R$ 110,291
Noncurrent liabilities | 3,045,066 | 3,183,689
Total liabilities | 3,175,273 | 3,293,980
Alto Tiete [member] |  |
Summary of intangible assets [Line Items] |  |
Current liabilities | 59,429 | 44,003
Noncurrent liabilities | 149,726 | 208,217
Total liabilities | 209,155 | 252,220
Sao Lourenco [member] |  |
Summary of intangible assets [Line Items] |  |
Current liabilities | 70,778 | 66,288
Noncurrent liabilities | 2,895,340 | 2,975,472
Total liabilities | R$ 2,966,118 | R$ 3,041,760

X
- Definition Public-Private Partnerships, or &amp;amp;amp;amp;amp;amp;amp;#8220;PPPs&amp;amp;amp;amp;amp;amp;amp;#8221;, are long-term contracts between private parties and government entities, for providing a public asset or service, in which the private parties bears significant risk and management responsibility, and remuneration is linked to performance. PPPs are regulated by the State of S&amp;amp;amp;amp;amp;amp;amp;#227;o Paulo through Law No. 11,688/2004, which was enacted on May 19, 2004. PPPs may be used for: (i) implantation, expansion, improvement, reform, maintenance or management of public infrastructure; (ii) provision of public services; and (iii) exploitation of public assets and non material rights belonging to the State. + References No definition available. + Details
Name: | sbs_PublicPrivatePartnershipCurrent
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount represents information related to public private partnership liabilities. + References No definition available. + Details
Name: | sbs_PublicPrivatePartnershipLiabilities
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Public-Private Partnerships, or &amp;amp;amp;amp;amp;amp;amp;#8220;PPPs&amp;amp;amp;amp;amp;amp;amp;#8221;, are long-term contracts between private parties and government entities, for providing a public asset or service, in which the private parties bears significant risk and management responsibility, and remuneration is linked to performance. PPPs are regulated by the State of S&amp;amp;amp;amp;amp;amp;amp;#227;o Paulo through Law No. 11,688/2004, which was enacted on May 19, 2004. PPPs may be used for: (i) implantation, expansion, improvement, reform, maintenance or management of public infrastructure; (ii) provision of public services; and (iii) exploitation of public assets and non material rights belonging to the State. + References No definition available. + Details
Name: | sbs_PublicPrivatePartnershipNoncurrent
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Its represents information related to summary of intangible assets. + References No definition available. + Details
Name: | sbs_SummaryOfIntangibleAssetsLineItems
Namespace Prefix: | sbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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