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Note 26 - Derivative financial instruments - Commodities Derivative Contracts (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	$ (816)	$ (1,349)
Hedge accounting reserve		8,100
Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Hedge accounting reserve	(620)	8,133	$ 13,122
Commodity Derivatives [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	(808)	205
Hedge accounting reserve	(808)	205
Commodity Derivatives [member] | Commodities derivative contracts, LME Scrap [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	(1,974)	1,376
Hedge accounting reserve	(1,974)	1,376
Commodity Derivatives [member] | Commodities derivative contracts, PSV Gas [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	1,097	(2,566)
Hedge accounting reserve	1,097	(2,566)
Commodity Derivatives [member] | Commodities derivative contracts, Nickel [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	52	1,966
Hedge accounting reserve	52	1,966
Commodity Derivatives [member] | Commodities derivative contracts, Houston Ship Channel Gas [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	34	(231)
Hedge accounting reserve	34	(231)
Commodity Derivatives [member] | Commodities derivative contracts, Electric Energy [member] | Cash flow hedges [member]
Disclosure of detailed information about hedging instruments [line items]
Fair value of derivatives	(17)	(340)
Hedge accounting reserve	$ (17)	$ (340)

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.

+ Details

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X

- Definition

A component of equity representing the reserve of cash flow hedges in relation to continuing hedges. [Refer: Reserve of cash flow hedges]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 24B
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24B_b_ii&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of financial assets (liabilities) classified as derivative instruments.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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