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CONTINGENT LIABILITIES (Sao Paulo State Revenue Services) (Details) - Sao Paulo State Revenue Services [Member] |  | 12 Months Ended
--- | --- | ---
Jul. 13, 2010 USD ($) | Jul. 13, 2010 BRL (R$) | Dec. 31, 2014 USD ($) | Dec. 31, 2014 BRL (R$)
Loss Contingencies [Line Items] |  |  |  |
Possible state value added tax rate | 25.00% | 25.00% |  |
Income tax deficiency notice, amount | $ | $ 22,100,000 |  |  |
Tax deficiency, penalties | $ | 40,000,000 |  |  |
Tax deficiency, interest | $ | $ 18,200,000 |  |  |
Aggregate sum claimed pursuant to tax deficiency | $ |  |  | $ 82,700,000 |
Brazil, Brazil Real |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Income tax deficiency notice, amount | R$ |  | R$ 36,499,984 |  |
Tax deficiency, penalties | R$ |  | 66,143,446 |  |
Tax deficiency, interest | R$ |  | R$ 30,282,420 |  |
Aggregate sum claimed pursuant to tax deficiency | R$ |  |  |  | R$ 220,000,000

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