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Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified |  |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Mar. 31, 2013 Belarusian subsidiary | Mar. 31, 2012 Belarusian subsidiary | Mar. 31, 2013 Subsidiary in Venezuela | Mar. 31, 2012 Subsidiary in Venezuela | Feb. 11, 2013 Subsidiary in Venezuela | Dec. 31, 2012 Subsidiary in Venezuela
Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency |  |  |  |  |  |  |  |  |  |
SICAD rate |  |  |  |  |  |  | 6.3 |  | 6.3 |
Net sales revenue as a percent of consolidated net sales revenue |  |  |  |  | 2.30% | 1.80% | 2.20% | 1.70% |  |
Gains or losses from a re-measurement of the financial statements using official exchange rates |  |  |  |  | $ 0 |  |  |  |  |
Cash and cash equivalents | $ 83,036 | $ 79,241 | $ 61,342 | $ 58,969 |  |  | $ 2,145 |  |  | $ 1,748

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