| 
           Intangible Assets (Details Textuals) (USD $) 
        In Thousands  | 
        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Jun. 30, 2011 
         | 
        
           Jun. 30, 2010 
         | 
        
           Jun. 30, 2011 
         | 
        
           Jun. 30, 2010 
         | 
      |
| Intangible Assets (Textuals) [Abstract] | ||||
| Amortization expense | $ 14,960 | $ 16,818 | $ 30,263 | $ 34,114 | 
| 
           Trademarks [Member] 
         | 
        ||||
| Intangible Assets (Textuals) [Abstract] | ||||
| Purchase price related to merger | $ 250,000 | $ 250,000 | ||
| X | ||||||||||
| 
             
- Definition 
          Intangible Assets. 
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| X | ||||||||||
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- Definition 
          The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will not be amortized. Does not include goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Aggregate amount of intangible asset amortization recognized as expense during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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