XML 149 R127.htm IDEA: XBRL DOCUMENT v3.23.1

RELATED-PARTY TRANSACTIONS - Operations with related parties (Details) R$ in Thousands	12 Months Ended
	Dec. 31, 2022 BRL (R$)	Dec. 31, 2021 BRL (R$)	Dec. 31, 2020 BRL (R$) installment
RELATED PARTY TRANSACTIONS
Sales to related parties	R$ 1,480,619	R$ 997,298	R$ 887,945
Purchases from related parties	311,691	304,239	208,948
Sales to related parties, net of purchases	1,168,928	693,058	678,997
Rental income from related party	R$ 829	R$ 670	524
Controlling shareholders
RELATED PARTY TRANSACTIONS
Sale of property to related party			R$ 21,204
Number of annual installments | installment			6

X

- Definition

The fair value of property sold to a related party as of the date of sale.

+ References

No definition available.

+ Details

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Namespace Prefix:	ggb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The net revenue (purchases) from transactions with related parties.

+ References

No definition available.

+ Details

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Namespace Prefix:	ggb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The number of annual installments over which payments are to be received under the terms of agreement in the sale of property.

+ References

No definition available.

+ Details

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Namespace Prefix:	ggb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of rental income resulting from agreements with a related party.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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X

- Definition

The amount of goods purchased by the entity in related party transactions. [Refer: Related parties [member]]

+ References

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-Name IAS
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-IssueDate 2022-03-24
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Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of revenue arising from the sale of goods in related party transactions. [Refer: Revenue; Related parties [member]]

+ References

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-Name IAS
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+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Details

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Namespace Prefix:
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