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Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]  
Intangible Assets Other than Goodwill

Intangible assets other than goodwill consist of the following:

 

Continuing operations:    Weighted average
amortization period
     As of December 31,  
        2012      2013  

Gross amount

        

Lease agreements

     6 years       $ —         $ 2,200   

Accumulated amortization

        

Lease agreements

        —           (199

Net intangible assets

        
     

 

 

    

 

 

 

Lease agreements

      $ —         $ 2,001