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Note 2 - Cost of Sales - Components of Cost of Sales (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of Cost of Sales [Abstract] |  |  |  |
Inventories at the beginning of the year |  | $ 2,672,593 | $ 1,636,673 | $ 2,265,880
Increase in inventory due to business combinations |  |  |  | 199,589
Decrease in inventory due to sale of subsidiaries |  |  | (10,662) |
Plus: Charges of the year |  |  |  |
Cost of sales raw materials energy consumables and other |  | 5,772,031 | 3,841,551 | 1,545,688
Services and fees |  | 293,490 | 208,472 | 154,976
Labor cost | [1] | 1,160,085 | 824,071 | 757,359
Depreciation of property, plant and equipment |  | 465,849 | 448,843 | 503,725
Amortization of intangible assets |  | 11,754 | 7,645 | 8,121
Depreciation of right-of-use assets |  | 33,244 | 35,910 | 40,127
Maintenance expenses |  | 267,294 | 129,350 | 107,764
Allowance for obsolescence |  | 24,901 | 23,296 | 35,809
Taxes |  | 194,736 | 40,887 | 45,162
Other |  | 178,691 | 98,159 | 59,790
Cost of sales including discontinued operations |  | 8,402,075 | 5,647,522 | 3,458,110
Less: Inventories at the end of the year |  | (3,986,929) | (2,672,593) | (1,636,673)
Cost of sales |  | 7,087,739 | 4,611,602 | 4,087,317
Cost of sales, labor cost severance charges |  | $ 17,800 | $ 12,800 | $ 81,300
[1] | For the year ended December 202 2, 202 1 and 20 20, labor cost includes approximately $17.8 million, $12.8 million and $81.3 million respectively of severance indemnities related to the adjustment of the workforce to market conditions.

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- Definition The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_99&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_103&doctype=Standard -URIDate 2022-03-24 + Details
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Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Amount of allowance for obsolescence attributable to cost of sales. + References No definition available. + Details
Name: | ts_CostOfSalesAllowanceForObsolescence
Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of amortization of intangible assets attributable to cost of sales. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Amount of depreciation of property, plant and equipment attributable to cost of sales. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Amount of cost of sales including discontinued operations. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of labor cost attributable to cost of sales. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of labor cost severance charges attributable to cost of sales. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Amount of maintenance expenses attributable to cost of sales. + References No definition available. + Details
Name: | ts_CostOfSalesMaintenanceExpenses
Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of other expense attributable to cost of sales. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of raw materials, energy, consumables and other expense attributable to cost of sales. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of services and fees expense attributable to cost of sales. + References No definition available. + Details
Name: | ts_CostOfSalesServicesAndFees
Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of tax expense attributable to cost of sales. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The amount of decrease in inventory during the period due to sale of subsidiaries. + References No definition available. + Details
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Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the cost of sales impact of depreciation of right-of-use assets during the period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- References No definition available. + Details
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- Definition Represents the amount of increase in inventory during the period due to business combinations. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The amount of current inventories including discontinued operations. + References No definition available. + Details
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