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Financial Assets and Liabilities - Summary of balance of other financial assets (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Apr. 15, 2021
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of financial assets [line items]          
Current     R$ 466 R$ 69,126  
Non-current     319,727  
Other financial assets     320,193 69,126  
Receipt of consideration asset R$ 69,155 R$ 65,478 R$ 69,155 65,478 R$ 1,192
Tellus and Janus shares [member]          
Disclosure of financial assets [line items]          
Percentage of preferred shares in the entity held by the entity or by its subsidiaries or associates     5.00%    
Percentage of proposed dividend Company and the other shareholders are entitled to receive     90.00%    
Fair value through profit or loss [member]          
Disclosure of financial assets [line items]          
Current     R$ 466 69,126  
Non-current     319,727  
Other financial assets     320,193 69,126  
Fair value through profit or loss [member] | Tellus and Janus shares [member]          
Disclosure of financial assets [line items]          
Other financial assets     319,727  
Fair value through profit or loss [member] | Other financial assets [member]          
Disclosure of financial assets [line items]          
Other financial assets     R$ 466 R$ 69,126