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Financial Assets and Liabilities - Summary of lease expense (Detail)
R$ in Thousands
12 Months Ended
Dec. 31, 2019
BRL (R$)
Disclosure Of Lease Expense [Line Items]  
Variable lease payments not included in the measurement of lease liabilities R$ 10,691
Expenses relating to short-term leases 37,143
Expenses relating to leases of low-value assets, excluding short-term leases of low-value assets 348
Lease expense R$ 48,182