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           Joint Venture (Tables) 
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        9 Months Ended | ||||||||||||||||||||||||||||||
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           Sep. 30, 2013 
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| Joint Venture [Abstract] | |||||||||||||||||||||||||||||||
| Summary of financial information of unconsolidated equity investment | 
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| Summary of net income or loss of unconsolidated equity investment | 
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| X | ||||||||||
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- Definition 
          Tabular disclosure of financial information of equity investment to the consolidate financial information of the company. No definition available. 
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| X | ||||||||||
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- Definition 
          Tabular disclosure of net inome or loss on unconsolidated concern. No definition available. 
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| X | ||||||||||
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- Details 
          
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