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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

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- Definition Public-Private Partnerships, or &#8220;PPPs&#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&#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
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- References No definition available. + Details
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- Definition Public-Private Partnerships, or &#8220;PPPs&#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&#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
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- References No definition available. + Details
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- Details
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- Details
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