| 
           Organization (Details) 
         | 
        12 Months Ended | 
|---|---|
| 
           Dec. 31, 2011
 
          Regions
 
          Distributors 
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      |
| Organization (Textual) [Abstract] | |
| Number of independent distributors | 2,700,000 | 
| Number of geographic regions | 6 | 
| X | ||||||||||
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- Definition 
          Number of geographic regions. No definition available. 
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| X | ||||||||||
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- Definition 
          Number of independent distributors. No definition available. 
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| X | ||||||||||
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- Details 
          
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