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DERIVATIVES (NOTIONAL TABLE) (Details) ₱ in Thousands, $ in Thousands, $ in Thousands | Mar. 31, 2018 PHP (₱) | Mar. 31, 2018 MXN ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2017 PHP (₱) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($)
--- | --- | --- | --- | --- | --- | ---
Derivative [Line Items] |  |  |  |  |  |
Notional Amount |  |  | $ 180,300 |  |  | $ 176,200
Foreign Exchange Forward |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional Amount |  |  | 266,180 |  |  | 313,506
Foreign Exchange Forward | PHP |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional Amount | ₱ 8,990,000 |  | $ 183,228 | ₱ 10,685,000 |  | 219,917
% Maturing in the Next 12 Months | 57.60% | 57.60% | 57.60% |  |  |
Foreign Exchange Forward | MXN |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional Amount |  | $ 1,444,000 | $ 82,952 |  | $ 1,609,000 | $ 93,589
% Maturing in the Next 12 Months | 45.30% | 45.30% | 45.30% |  |  |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The percentage of the foreign currency cash flow hedge derivative contract maturing in the next twelve months. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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