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Loans and financing - Narrative (Detail)
12 Months Ended
Jun. 30, 2021
BRL (R$)
Oct. 26, 2020
BRL (R$)
session
R$ / shares
Dec. 31, 2021
BRL (R$)
Dec. 31, 2020
BRL (R$)
Jun. 30, 2021
USD ($)
Oct. 19, 2017
USD ($)
Disclosure of detailed information about borrowings [line items]            
VWAP calculation, number of trading sessions | session   30        
Unrealized borrowing cost on conversion right recognized as expense     R$ (829,213,000) R$ 755,354,000    
Senior notes - 2026            
Disclosure of detailed information about borrowings [line items]            
Issue amount R$ 3,052,440,000,000       $ 600,000,000  
Borrowings, interest rate 7.25%       7.25%  
Borrowing costs incurred R$ 75,645,000          
Convertible debt            
Disclosure of detailed information about borrowings [line items]            
Issue amount   R$ 1,745,900,000 R$ 829,213,000 R$ 755,354,000    
Maturity term   5 years        
Conversion price per share | R$ / shares   R$ 32.2649        
Conversion price per reference share | R$ / shares   R$ 25.3058        
Minimum redemption period   36 months        
Convertible debt | Top of range            
Disclosure of detailed information about borrowings [line items]            
Borrowings, interest rate     27.50%      
Senior notes - 2024            
Disclosure of detailed information about borrowings [line items]            
Issue amount | $           $ 400,000,000
Conversion premium rate           5.875%