| 
           COMMITMENTS AND CONTINGENCIES (Details Textuals) (USD $) 
        In Thousands, unless otherwise specified  | 
        9 Months Ended | 
|---|---|
| 
           Sep. 30, 2012 
         | 
      |
| Commitments And Contingencies Details Textuals | |
| Pre-tax gain on sale of Class B shares of Visa, Inc | $ 3,200 | 
| Increased the litigation reserve | 15,000 | 
| Revised conversion ratio for the Class B shares resulting under the swap contract | 56 | 
| Quarterly payable for swap contract | $ 25 | 
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- Details 
          
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- Definition 
          This element refers to increased amount in litigation reserve. No definition available. 
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- Definition 
          This element refers to pre tax gain on sale of stock in equity method investee. No definition available. 
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- Definition 
          This element refers to quarterly payable amount for swap contract. No definition available. 
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- Definition 
          This element refers to revised conversion ratio for class B shares. No definition available. 
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