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Cash and Cash Equivalents and Financial Investments - Cash and cash equivalents (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of Cash and Cash Equivalents and Financial Investments and Hedge Derivative Financial Instruments [Abstract]    
Cash and bank deposits in local currency R$ 317,907 R$ 285,306
Cash and bank deposits in foreign currency 16,640 119,775
Fixed-income securities in local currency 1,943,164 2,241,852
Fixed-income securities in foreign currency 2,363 14,561
Total cash and cash equivalents R$ 2,280,074 R$ 2,661,494