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CONTINGENT LIABILITIES (Sao Paulo State Revenue Services) (Details) - Sao Paulo State Revenue Services [Member] $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 13, 2010 USD ($) | Jul. 13, 2010 BRL | Dec. 31, 2014 USD ($) | Dec. 31, 2014 BRL
Contingent Liabilities, Liens and Guarantees [Line Items] |  |  |  |
Possible state value added tax rate | 25.00% | 25.00% |  |
Income tax deficiency notice, amount | $ 22.1 | BRL 36,499,984 |  |
Tax deficiency, penalties | 40.0 | 66,143,446 |  |
Tax deficiency, interest | $ 18.2 | BRL 30,282,420 |  |
Aggregate sum claimed pursuant to tax deficiency |  |  | $ 82.7 | BRL 220,000,000

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