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Intangible Assets - Amortization expenses (Detail) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Intangible assets details 2 [abstract]      
Inventories and cost of products and services sold R$ 15,044 R$ 2,165 R$ 11,437
Selling and marketing 8,920 11,689 13,352
General and administrative 75,370 57,369 47,358
Total, amortization R$ 99,334 R$ 71,223 R$ 72,147