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27. Accounts Payable Related to Concessions (Details 2) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accounts Payable Related To Concessions Details 2Abstract
Accounts payable related to concession, beginning	R$ 554,954	R$ 565,542
Additions	302	678
Adjust to present value	(114)	1,432
Monetary variations	93,386	53,173
Payments	(64,365)	(65,871)
Accounts payable related to concession, ending	R$ 584,163	R$ 554,954

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- Definition

The amount of trade payables and other payables. [Refer: Trade payables; Other payables]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2018-01-01
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