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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)

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