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Employee Benefits and Private Pension Plan - Post-employment Benefits (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Summary of employee benefits [line items]      
Total R$ 284,724 R$ 272,867 R$ 249,815
Current 27,077 28,951  
Non-current 257,647 243,916  
Health and dental care plan [member]      
Summary of employee benefits [line items]      
Total [1] 200,318 154,142  
Indemnification of FGTS [member]      
Summary of employee benefits [line items]      
Total 53,952 66,309  
Seniority bonus [member]      
Summary of employee benefits [line items]      
Total [2] 16,336 34,485  
Life insurance [member]      
Summary of employee benefits [line items]      
Total [1] R$ 14,118 R$ 17,931  
[1] Only IPP, Tropical and Iconic.
[2] In September 2020, there was a change in the bonus policy to retirement with reduced benefit.