XML 141 R99.htm IDEA: XBRL DOCUMENT
v3.21.1

Note 5 - Impairment charge - Impairment allocated by CGU (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |  |
Impairment charge | $ 622,000 | $ 622,402 |  |
OCTG (USA) [member] |  |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |  |
Assets before impairment |  | 544,000 |  |
Impairment charge | 225,000 | 225,000 |  |
Assets after impairment |  | 319,000 |  |
IPSCO [Member] |  |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |  |
Assets before impairment |  | 1,169,000 |  |
Impairment charge | 357,000 | 357,000 |  |
Assets after impairment |  | 812,000 |  |
Coiled Tubing [member] |  |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |  |
Assets before impairment |  | 108,000 |  |
Impairment charge | 4,000 | 4,000 |  |
Assets after impairment |  | 104,000 |  |
Rods USA [Member] |  |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |  |
Assets before impairment |  | 73,000 |  |
Impairment charge | $ 36,000 | 36,000 |  |
Assets after impairment |  | $ 37,000 |  |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment loss or reversal of impairment loss recognised in profit or loss. [Refer: Impairment loss recognised in profit or loss; Reversal of impairment loss recognised in profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount at which an asset is recognised in the statement of financial position after deducting accumulated impairment losses. + References No definition available. + Details
Name: | ts_AssetsAfterImpairment
Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount at which an asset is recognised before deducting accumulated impairment losses. + References No definition available. + Details
Name: | ts_AssetsBeforeImpairment
Namespace Prefix: | ts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis=ts_OCTGUSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis=ts_IPSCOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis=ts_CoiledTubingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis=ts_RodsUSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |