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Presentation of Financial Statements and Summary of Significant Accounting Policies - Summary of difference between the lease obligation disclosed under IAS 17 To IFRS 16 (Detail) - BRL (R$)
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Disclosure of Difference Between the Lease Obligation Disclosed Under IAS Seventeen to IFRS 16 [Line Items]      
Leases payable recognized on January 1, 2019 R$ 1,588,673,000   R$ 46,066,000
Lease liabilities [member]      
Disclosure of Difference Between the Lease Obligation Disclosed Under IAS Seventeen to IFRS 16 [Line Items]      
Operating lease commitments as of December 31, 2018   R$ 1,540,994  
Discounted using the incremental borrowing rate on January 1, 2019   (177,707)  
Finance lease liabilities recognized as of December 31, 2018   46,066  
(-) Recognition exemption for leases of low amount assets   (33,893)  
(-) Recognition exemption for leases with less than 12 months of lease term at transition   (11,657)  
(-) Extension options reasonably certain to be exercised   0  
Leases payable recognized on January 1, 2019   R$ 1,363,803