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Note 29 - Foreign exchange control measures in Argentina (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Percentage of entity's revenue	10.00%	10.00%	10.00%
Argentina, Pesos
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Maximum percentage of export proceeds can be sold		20.00%
Currency devaluation percentage rate, monthly devaluation during the period	2.00%
Foreign exchange rates | Argentina, Pesos
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Currency devaluation percentage rate, monthly devaluation during the period	1.00%
Argentina
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Percentage of entity's revenue	12.00%
Argentina | Argentine Subsidiaries [Member]
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Percentage of entity's net equity	11.00%
Percentage of entity's revenue	19.00%
Argentine Peso / U.S. dollar foreign exchange risk [member]
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Currency exposure / functional currency	$ (40,565)	$ (134,716)
Argentine Peso / U.S. dollar foreign exchange risk [member] | Argentina
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Currency exposure / functional currency	40,600
International market [member] | Argentine Subsidiaries [Member] | Us Dollar Denominated Argentine Bonds [Member]
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Financial assets at fair value through other comprehensive income	$ 217,900

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

The amount of financial assets at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets; Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 8
-Subparagraph h
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_h&doctype=Standard
-URIDate 2024-03-27

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 8
-IssueDate 2024-01-01
-Paragraph 34
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_34&doctype=Standard
-URIDate 2024-03-27

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Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of currency devaluation rate per month.

+ References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of currency exposure which impact profit and loss expressed as long/(short).

+ References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The maximum percentage of export proceeds can be sold for Argentine pesos through securities transactions resulting in a higher implicit exchange rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of the entity's net equity.

+ References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	dtr-types:percentItemType
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- Details

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- Details

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Period Type:

X

- Details

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X

- Details

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