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Significant Accounting Policies - Summary of Impact on Adoption of Profit or Loss (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of Impact On Adoption Of Profit or Loss [Line Items]      
Depreciation expense R$ 125,749 R$ 66,501 R$ 32,836
Amortization expense 37,647 25,832 24,372
Financial expenses, net 353,451 301,065 237,094
Deferred income tax and social contribution 69,232 (17,770) 3,622
Net income (loss) for the year 804,195 305,227 (104,969)
Equity holders of the parent 803,232 R$ 301,232 R$ (108,731)
Increase Decrease Due To Application Of IFRS16 [Member]      
Disclosure of Impact On Adoption Of Profit or Loss [Line Items]      
Amortization expense (4,168)    
Expense relating to short-term leases and leases of low-value assets (183)    
Financial expenses, net (4,904)    
Deferred income tax and social contribution (1,084)    
Rent expense 27,515    
Net income (loss) for the year (6,039)    
Equity holders of the parent (6,039)    
Cost Of Sales [Member] | Increase Decrease Due To Application Of IFRS16 [Member]      
Disclosure of Impact On Adoption Of Profit or Loss [Line Items]      
Depreciation expense (665)    
Administrative Expenses [Member] | Increase Decrease Due To Application Of IFRS16 [Member]      
Disclosure of Impact On Adoption Of Profit or Loss [Line Items]      
Depreciation expense (13,549)    
Selling Expenses [Member] | Increase Decrease Due To Application Of IFRS16 [Member]      
Disclosure of Impact On Adoption Of Profit or Loss [Line Items]      
Depreciation expense R$ (9,001)