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The amount of other non current assets, related party transactions.

No definition available.

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The percentage of equity interests acquired in related party.

No definition available.

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The cash outflow for the purchase of equity interests in a related party.

No definition available.

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- References

No definition available.

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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.

No definition available.

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The amount of compensation to key management personnel in the form of other long-term employee benefits. [Refer: Other long-term employee benefits; Key management personnel of entity or parent [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of compensation to key management personnel in the form of post-employment benefits. [Refer: Key management personnel of entity or parent [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]

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The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
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-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
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-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

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The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
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-URIDate 2022-03-24

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The number of other equity instruments (ie other than share options) expired in a share-based payment arrangement.

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
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The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

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Balance Type:	na
Period Type:	instant

The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 53
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_53&doctype=Standard
-URIDate 2022-03-24

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A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense]

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-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 9
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_9&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_SocialSecurityContributions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=ggb_BrasilAoCuboConstruoModularLtdaMember
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