XML 30 R5.htm IDEA: XBRL DOCUMENT
v3.21.1

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - ARS ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 13, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Equity [Abstract] |  |  |
Acquisition cost |  | $ 3,715,523 | $ 994,866
Treasury Shares [Member] |  |  |
Equity [Abstract] |  |  |
Shares issued (in shares) |  | 41,734,225 | 9,886,755
Par value (in pesos per share) |  | $ 1 | $ 1
Percentage of share capital | 3.706% | 5.25% | 1.24%
Acquisition cost | $ 5,507,893 | $ 3,715,523 | $ 994,866

X
- References No definition available. + Details
Name: | ifrs-full_ChangesInEquityAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_106_d&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The nominal value per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ParValuePerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the adjustment to additional paid-in capital related to the cost of repurchasing the entity's shares. + References No definition available. + Details
Name: | tgs_AdditionalPaidInCapitalCostOfTreasuryShares
Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total number of shares repurchased and held in treasury as a percentage of the total share capital of the entity. + References No definition available. + Details
Name: | tgs_SharesAcquiredPercentageOfShareCapital
Namespace Prefix: | tgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_TreasurySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |