XML 107 R96.htm IDEA: XBRL DOCUMENT v3.8.0.1

14. Intangible assets (Details 2) - BRL (R$) R$ in Thousands	Dec. 31, 2017	Dec. 31, 2016
SummaryOfIntangibleAssetsLineItems [Line Items]
Current liabilities	R$ 60,007	R$ 31,898
Noncurrent liabilities	3,011,409	2,217,520
Liabilities	3,071,416	2,249,418
Alto Tiete
SummaryOfIntangibleAssetsLineItems [Line Items]
Current liabilities	35,083	31,898
Noncurrent liabilities	282,501	309,858
Liabilities	317,584	341,756
Sao Lourenco
SummaryOfIntangibleAssetsLineItems [Line Items]
Current liabilities	24,924	0
Noncurrent liabilities	2,728,908	1,907,662
Liabilities	R$ 2,753,832	R$ 1,907,662

X

- Definition

Public-Private Partnerships, or “PPPs”, 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 São 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

- 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 “PPPs”, 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 São 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

- 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: