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COMMON STOCK AND DIVIDENDS, Restrictions on distribution of retained earnings (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 ARS ($)
COMMON STOCK AND DIVIDENDS [Abstract] |
Percentage of net income must be appropriated into legal reserve | 5.00%
Unappropriated retained deficit | $ 0
Percentage of reserve for legally binding | 20.00%
Percentage of net income share with regular employees | 0.25%
Withholding tax rate of income tax | 35.00%
Period of investment plan | 5 years

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- References No definition available. + Details
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- Definition Refers to percentage of net income must be appropriated into legal reserve on each fiscal year. + References No definition available. + Details
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- Definition The percentage of net income share with regular employees for each year. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Refers to the legally binding percentage of reserves which results from sum of "Common stock nominal value" and the balance of "Cumulative inflation adjustment to common stock". + References No definition available. + Details
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- Definition Refers to period of investment plan. + References No definition available. + Details
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- Definition Refers to the net income of a entity that has not been allocated by management or the board of directors to a specific purpose. + References No definition available. + Details
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- Definition Refers to withholding tax rate of income tax during the period. + References No definition available. + Details
Name: | tgs_WithholdingTaxRateOfIncomeTax
Namespace Prefix: | tgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration