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Deferred Costs (Tables)
12 Months Ended
Dec. 31, 2012
Deferred Costs  
Schedule of components of deferred costs

Deferred costs at December 31, 2012 and 2011 consisted of the following (amounts in thousands):

 
  2012   2011  

Deferred financing

  $ 152,596   $ 113,620  

Deferred leasing

    285,931     238,394  
           

 

    438,527     352,014  

Less accumulated amortization

    (177,382 )   (141,228 )
           

Deferred costs, net

  $ 261,145   $ 210,786