XML 183 R155.htm IDEA: XBRL DOCUMENT v3.21.1
Employee Benefits and Private Pension Plan - Post-employment benefit expense (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Summary of employee benefits [line items]      
Employee benefit expense R$ 5,211 R$ 10,682 R$ 27,558
Health and dental care plan [member]      
Summary of employee benefits [line items]      
Employee benefit expense 11,127 10,442 9,559
Indemnification of FGTS [member]      
Summary of employee benefits [line items]      
Employee benefit expense 6,689 (5,818) 11,159
Seniority bonus [member]      
Summary of employee benefits [line items]      
Employee benefit expense (13,722) 4,765 5,460
Life insurance [member]      
Summary of employee benefits [line items]      
Employee benefit expense R$ 1,117 R$ 1,293 R$ 1,380