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Commitments And Contingencies (Tables)
12 Months Ended
Dec. 31, 2011
Commitments and Contingencies [Abstract]  
Schedule of future minimum rental revenues

         

2012

  $ 507,842  

2013

    457,517  

2014

    396,048  

2015

    332,034  

2016

    268,105  

Thereafter

    979,584  
   

 

 

 
    $ 2,941,130  
   

 

 

 
Schedule of minimum rental payments

         

2012

  $ 3,653  

2013

    3,666  

2014

    3,240  

2015

    3,746  

2016

    3,623  

Thereafter

    121,598  
   

 

 

 
    $ 139,526