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Depreciation and Amortization
 12 Months Ended
Dec. 31, 2012
Depreciation and Amortization

(10) Depreciation and Amortization

The Company includes all categories of depreciation and amortization on a separate line in its Statement of Operations. The amounts of depreciation and amortization expense excluded from the following operating expenses in its Statement of Operations are:

 

     Year Ended December 31,  
     2012      2011      2010  

Direct expenses

    $ 277,662       $ 283,720       $ 297,517   

General and administrative expenses

      4,137         4,224         5,033   

Corporate expenses

      14,284         11,695         10,153   
  

 

 

     

 

 

     

 

 

  
   $ 296,083       $ 299,639       $ 312,703