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The following amounts represent the expected benefit payments for future years (10 years), from the obligation of benefits granted and the average duration of the plan obligations: (Details)
R$ in Thousands
12 Months Ended
Dec. 31, 2021
BRL (R$)
Medical Plan [Member]  
IfrsStatementLineItems [Line Items]  
2022 R$ 6,792
2023 7,350
2024 8,030
2025 8,735
2026 9,512
2027 to 2031 R$ 60,942
Weighted average duration - in years 16 years 4 months 28 days
F G T S Penalty [Member]  
IfrsStatementLineItems [Line Items]  
2022 R$ 13,304
2023 3,783
2024 4,512
2025 4,656
2026 5,559
2027 to 2031 R$ 32,114
Weighted average duration - in years 6 years 1 month 13 days
Award For Length Of Service [Member]  
IfrsStatementLineItems [Line Items]  
2022 R$ 11,395
2023 11,819
2024 14,239
2025 12,416
2026 11,720
2027 to 2031 R$ 53,740
Weighted average duration - in years 5 years 7 months 2 days
Others [Member]  
IfrsStatementLineItems [Line Items]  
2022 R$ 21,316
2023 15,067
2024 15,445
2025 15,688
2026 16,876
2027 to 2031 R$ 110,413
Weighted average duration - in years 8 years 6 months 10 days
Total [Member]  
IfrsStatementLineItems [Line Items]  
2022 R$ 52,807
2023 38,019
2024 42,226
2025 41,495
2026 43,667
2027 to 2031 R$ 257,209
Weighted average duration - in years 8 years 4 months 6 days