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Income Tax and Social Contribution - Schedule of estimate of tax credit realization (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total R$ 3,051,628 R$ 1,900,241
Within 1 year    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 266,609  
From 1 to 2 years [member]    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 277,527  
From 2 to 3 years    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 322,779  
From 3 to 4 years    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 329,506  
From 4 to 5 years    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 350,582  
From 5 to 8 years    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 976,496  
From 8 to 10 years    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total R$ 528,129