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Operations - Additional Information (Detail)
$ / shares in Units, R$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 13, 2019
BRL (R$)
shares
Dec. 13, 2019
USD ($)
$ / shares
shares
Nov. 30, 2019
shares
Dec. 31, 2019
BRL (R$)
shares
Mar. 31, 2020
shares
Dec. 01, 2019
shares
Disclosure of classes of share capital [line items]            
Percentage of ownership held by holding company       64.61% 64.61%  
Reverse share split ratio     4:1      
Issued capital before share split     2,036,988,542      
Issued capital after share split     509,247,136      
Number of shares issued new shares       42,553,192    
Equity transaction cost | R$       R$ 22,824    
Class A Common Share [Member]            
Disclosure of classes of share capital [line items]            
Number of shares issued   72,510,641   2,000,000,000 2,000,000,000 257,456,251,558
Number of shares issued new shares 42,553,192 42,553,192   42,553,192    
Number of shares issued existing shares 29,957,449 29,957,449        
Shares issued to underwriters 10,876,596 10,876,596        
Aggregate number of shares issued in public offering 83,387,237 83,387,237        
Shares issued price per share | $ / shares   $ 27.00        
Gross proceeds from shares issued R$ 4,705,803 $ 1,148,936        
Underwriting discounts and commissions | R$ 200,977          
Other offering expenses | R$ 44,726          
Equity issuance costs recognized in income statement | R$ 21,902          
Equity transaction cost | R$ R$ 22,824