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1 Operations (Details 5) - BRL (R$) R$ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Jun. 28, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | --- | ---
SummaryOfOperationsLineItems [Line Items] |  |  |  |  |  |
Assets identified |  | R$ 38,312,550 | R$ 35,930,100 |  |  |
Cash and cash equivalents |  | 2,941,727 | 1,948,409 |  | R$ 1,040,075 | R$ 982,073
Taxes recoverable |  | 236,929 | 152,157 |  |  |
Other receivables |  | 2,617,638 | 2,550,691 |  |  |
Suppliers |  | 187,913 | 49,956 |  |  |
Taxes due |  | 293,666 | 157,420 |  | R$ (156,630) |
Deferred taxes |  | 1,606,713 | R$ 1,664,773 |  |  |
Net assets acquired |  | 133,739 |  |  |  |
Fair Value [Member] |  |  |  |  |  |
SummaryOfOperationsLineItems [Line Items] |  |  |  |  |  |
Assets identified |  | 144,593 |  |  |  |
Cash and cash equivalents |  | 9,803 |  |  |  |
Trade accounts receivable |  | 2,921 |  |  |  |
Taxes recoverable |  | 17 |  |  |  |
Contract assets | [1] | 120,213 |  |  |  |
Other receivables |  | 1,051 |  |  |  |
Deferred taxes - business combination |  | 10,588 |  |  |  |
Liabilities assumed |  | 30,884 |  |  |  |
Suppliers |  | 6,115 |  |  |  |
Payroll, social charges and accruals |  | 73 |  |  |  |
Taxes due |  | 320 |  |  |  |
Sectorial charges due |  | 1,572 |  |  |  |
Deferred taxes |  | 4,097 |  |  |  |
Contingent liabilities - business combination |  | 18,344 |  |  |  |
Others liabilities |  | 363 |  |  |  |
Net assets acquired |  | 113,709 |  | R$ 113,709 |  |
Carrying Amount [Member] |  |  |  |  |  |
SummaryOfOperationsLineItems [Line Items] |  |  |  |  |  |
Assets identified |  | 146,802 |  |  |  |
Cash and cash equivalents |  | 9,803 |  |  |  |
Trade accounts receivable |  | 2,921 |  |  |  |
Taxes recoverable |  | 17 |  |  |  |
Contract assets | [1] | 133,010 |  |  |  |
Other receivables |  | 1,051 |  |  |  |
Deferred taxes - business combination |  |  |  |  |  |
Liabilities assumed |  | 12,540 |  |  |  |
Suppliers |  | 6,115 |  |  |  |
Payroll, social charges and accruals |  | 73 |  |  |  |
Taxes due |  | 320 |  |  |  |
Sectorial charges due |  | 1,572 |  |  |  |
Deferred taxes |  | 4,097 |  |  |  |
Contingent liabilities - business combination |  |  |  |  |  |
Others liabilities |  | 363 |  |  |  |
Net assets acquired |  | R$ 134,262 |  |  |  |
[1] | The book value of contract assets disclosed by the acquired subsidiary was adjusted pursuant to the Company's practices before allocation of fair value in the business combination.

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