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Risks and Financial Instruments - Contractual undiscounted cash outflows (Detail) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Summary of risks and financial instruments [line items]
Leases payable	R$ 1,833,288	R$ 1,588,673	R$ 46,066
Total [member]
Summary of risks and financial instruments [line items]
Loans including future contractual interest	20,131,159
Currency and interest rate hedging instruments	472,647
Trade payables	4,040,652
Leases payable	2,734,384
Less than 1 year [member]
Summary of risks and financial instruments [line items]
Loans including future contractual interest	3,620,550
Currency and interest rate hedging instruments	133,092
Trade payables	4,040,652
Leases payable	396,010
Between 1 and 3 years [member]
Summary of risks and financial instruments [line items]
Loans including future contractual interest	6,716,208
Currency and interest rate hedging instruments	88,918
Trade payables
Leases payable	668,089
Between 3 and 5 years [member]
Summary of risks and financial instruments [line items]
Loans including future contractual interest	1,695,276
Currency and interest rate hedging instruments	106,885
Trade payables
Leases payable	541,004
More than 5 years [member]
Summary of risks and financial instruments [line items]
Loans including future contractual interest	8,099,125
Currency and interest rate hedging instruments	143,752
Trade payables
Leases payable	R$ 1,129,281

X

- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 47
-Subparagraph b
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- Definition

The amount of trade payables and other payables. [Refer: Trade payables; Other payables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 54
-Subparagraph k
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_k&doctype=Standard
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- Definition

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+ References

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X

- Definition

The disclosure of loans including future contractual interest. The extension of money from one party to another with the agreement that the money will be repaid.

+ References

No definition available.

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Summary of risks and financial instruments.

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