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13. Taxes (Details 1) R$ in Thousands	Dec. 31, 2018 BRL (R$)
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	R$ 2,047,358
Liabilities	(1,197,717)
2019
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	528,769
Liabilities	(82,554)
2020
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	263,907
Liabilities	(82,937)
2021
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	164,724
Liabilities	(83,423)
2022
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	131,876
Liabilities	(100,484)
2023
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	103,979
Liabilities	(68,853)
2024 to 2026
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	216,854
Liabilities	(188,881)
2027 to 2029
DisclosureOfDeferredTaxesLineItems [Line Items]
Assets	637,249
Liabilities	R$ (590,585)

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- Definition

The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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