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FINANCIAL INSTRUMENTS - Capital management risk (Details) - Capital management risk | 12 Months Ended
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Dec. 31, 2017
Minimum |
Disclosure of objectives, policies and processes for managing capital [line items] |
WACC (as a percent) | 10.00%
Net Financial Expenses Coverage Ratio | 5.5
Maximum |
Disclosure of objectives, policies and processes for managing capital [line items] |
WACC (as a percent) | 13.00%
Net debt/EBITDA | 2.5
Debt/Equity Ratio (as a percent) | 60.00%

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- Definition Ratio of debt to equity under capital management risk. + References No definition available. + Details
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- Definition Ratio of net debt to earnings before income tax depreciation and allowance (EBITDA) under capital management risk. + References No definition available. + Details
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- Definition Ratio of net financial expenses coverage ratio under capital management risk. + References No definition available. + Details
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- 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
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- Definition Weighted average cost of capital used as a significant Level 3 unobservable input for liabilities. [Refer: Level 3 of fair value hierarchy [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 13 -IssueDate 2017-01-01 -Paragraph IE63 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2017-03-01&anchor=para_IE63&doctype=Illustrative%20Examples -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 13 -IssueDate 2017-01-01 -Paragraph 93 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2017-03-01&anchor=para_93_d&doctype=Standard -URIDate 2017-03-09 + Details
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