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Summary of Significant Accounting Policies - Summary of Adoption of IFRS 16 On Lease Liabilities (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2018
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Jan. 01, 2019
Accounting Policies [abstract]          
Operating lease commitments disclosed as of December 31, 2018 R$ 209,318        
Discounted using the incremental borrowing rate of at the date of initial application (60,099)        
(Less): short-term leases recognized on a straight-line basis as expense (725)        
Lease liability recognized as of January 1, 2019 R$ 148,494 R$ 268,947 R$ 255,406 R$ 143,466 R$ 148,494