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Segment Information - Revenue from Operations Abroad (Detail) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Summary of segment information [line items]
Revenue	R$ 90,697,983	R$ 79,230,014	R$ 76,740,033
Brazil [member]
Summary of segment information [line items]
Revenue	89,183,342	77,986,363	75,670,139
Mexico [member]
Summary of segment information [line items]
Revenue	207,615	190,205	183,124
Uruguay [member]
Summary of segment information [line items]
Revenue	48,096	33,873	33,782
Venezuela [member]
Summary of segment information [line items]
Revenue	68,877	54,788	25,393
Other Latin American Countries [member]
Summary of segment information [line items]
Revenue	425,973	427,875	448,814
United States [member]
Summary of segment information [line items]
Revenue	465,840	292,709	158,280
Far East [member]
Summary of segment information [line items]
Revenue	96,394	72,469	57,662
Europe [member]
Summary of segment information [line items]
Revenue	138,347	119,097	97,261
Others [member]
Summary of segment information [line items]
Revenue	R$ 63,499	R$ 52,635	R$ 65,578

X

- Definition

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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