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Financial assets and liabilities - Summary of Net Exposure to Exchange Rate Variations on Assets and Liabilities (Detail) - BRL (R$) R$ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | R$ 29,356,555 | R$ 28,531,175
Cash and cash equivalents [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 16,174,130 | 13,642,918
Trade receivables [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 2,745,853 | 2,033,441
Derivative financial instruments (notional) [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 4,732,926 | 8,140,700
Foreign exchange risk [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 5,021,936 | (4,779,531)
Foreign exchange risk [member] | Cash and cash equivalents [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 3,811,598 | 2,995,284
Foreign exchange risk [member] | Trade receivables [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | 93,326 | 24,619
Foreign exchange risk [member] | Trade payables [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | (4,721) | (229,750)
Foreign exchange risk [member] | Loans, borrowings and debentures [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | (19,640,300) | (25,227,055)
Foreign exchange risk [member] | Leases [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | (108,365) | (99,217)
Foreign exchange risk [member] | Contingent consideration [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | (234,960) | (224,787)
Foreign exchange risk [member] | Derivative financial instruments (notional) [member] |  |
Disclosure of foreign exchange risk [Line Items] |  |
Exposure to risk | R$ 21,105,358 | R$ 17,981,375

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