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6 Cash and cash equivalents (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents [abstract]
Cash and bank deposits	R$ 57,729	R$ 13,092
Cash equivalents (a)	987,313	930,117
Cash and cash equivalents	R$ 1,045,042	R$ 943,209	R$ 62,260	R$ 25,490

X

- Definition

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

+ References

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X

- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

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No definition available.

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- Definition

The amount of short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.

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