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Income Tax and Social Contribution - Summary of Changes in Deferred Tax (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets and liabilities [abstract]    
Beginning balance R$ (7,004,646) R$ (5,831,602)
(Charged) / credited to the profit for the year 450 (1,172,964)
Other comprehensive income (loss) (18,300) 450
Recognized in equity 10,213  
Business combination (163,284) (530)
Ending balance (5,674,656) (7,004,646)
Total deferred taxes recorded, net 766,428 1,790,891
Tax loss and negative basis    
Deferred tax assets and liabilities [abstract]    
Beginning balance 3,503,692 2,915,329
(Charged) / credited to the profit for the year 565,197 587,315
Other comprehensive income (loss) 1,048
Recognized in equity 5,878  
Business combination 44  
Exchange differences
Ending balance 4,074,811 3,503,692
Employee benefits    
Deferred tax assets and liabilities [abstract]    
Beginning balance 60,209 73,866
(Charged) / credited to the profit for the year 101,836 (13,657)
Other comprehensive income (loss)
Recognized in equity  
Business combination  
Exchange differences
Ending balance 162,045 60,209
Provisions    
Deferred tax assets and liabilities [abstract]    
Beginning balance 996,530 963,637
(Charged) / credited to the profit for the year 93,396 (1,612)
Other comprehensive income (loss) 34,505
Recognized in equity 68  
Business combination (10,129)  
Exchange differences
Ending balance 1,079,865 996,530
Post- employment obligations    
Deferred tax assets and liabilities [abstract]    
Beginning balance 200,461 214,496
(Charged) / credited to the profit for the year (12,737) 14,958
Other comprehensive income (loss) (27,642) (28,993)
Recognized in equity  
Business combination  
Exchange differences
Ending balance 160,082 200,461
Property, plant and equipment    
Deferred tax assets and liabilities [abstract]    
Beginning balance 399,537 408,581
(Charged) / credited to the profit for the year (433,371) (9,044)
Other comprehensive income (loss)
Recognized in equity  
Business combination (19,513)  
Exchange differences
Ending balance 53,347 399,537
Unregistered credits    
Deferred tax assets and liabilities [abstract]    
Beginning balance (2,318,998) (2,198,164)
(Charged) / credited to the profit for the year (163,890) (120,834)
Other comprehensive income (loss) (147)
Recognized in equity  
Business combination  
Exchange differences
Ending balance (2,483,035) (2,318,998)
Other    
Deferred tax assets and liabilities [abstract]    
Beginning balance 2,372,324 1,177,857
(Charged) / credited to the profit for the year (1,642,143) 113,454
Other comprehensive income (loss) 20,035 39,930
Recognized in equity 4,267  
Business combination  
Exchange differences 1,213,324 1,041,083
Ending balance 1,967,807 2,372,324
Deferred Tax Assets    
Deferred tax assets and liabilities [abstract]    
Beginning balance 5,213,755 3,555,602
(Charged) / credited to the profit for the year (1,491,712) 570,580
Other comprehensive income (loss) (7,754) 46,490
Business combination (29,598)  
Exchange differences 1,213,324 1,041,083
Ending balance 4,908,228 5,213,755
Effects on the formation of joint ventures    
Deferred tax assets and liabilities [abstract]    
Beginning balance (1,135,036) (1,135,036)
(Charged) / credited to the profit for the year 466,528
Other comprehensive income (loss)
Business combination
Ending balance (668,508) (1,135,036)
Intangible assets    
Deferred tax assets and liabilities [abstract]    
Beginning balance (3,603,568) (3,663,085)
(Charged) / credited to the profit for the year 51,732 59,517
Other comprehensive income (loss)
Business combination
Ending balance (3,551,836) (3,603,568)
Unrealized gains on derivatives    
Deferred tax assets and liabilities [abstract]    
Beginning balance (2,206,216) (923,672)
(Charged) / credited to the profit for the year 1,063,297 (1,282,808)
Other comprehensive income (loss) 108,546 264
Business combination
Ending balance (1,034,373) (2,206,216)
Leases    
Deferred tax assets and liabilities [abstract]    
Beginning balance (25,459) (36,346)
(Charged) / credited to the profit for the year 456,858 10,667
Other comprehensive income (loss) 230 220
Business combination
Ending balance (431,629) (25,459)
Fair value adjustment    
Deferred tax assets and liabilities [abstract]    
Beginning balance 526,002 174,597
(Charged) / credited to the profit for the year (653,320) 351,405
Other comprehensive income (loss)
Business combination
Ending balance 127,318 526,002
Other    
Deferred tax assets and liabilities [abstract]    
Beginning balance (560,369) (248,060)
(Charged) / credited to the profit for the year 126,479 (311,745)
Other comprehensive income (loss) (127,076) (34)
Business combination (163,284) (530)
Ending balance R$ (724,250) R$ (560,369)