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Property and Equipment, Net (Tables)
 6 Months Ended
Jun. 30, 2013
Property Plant And Equipment [Abstract]  
Summary of Property and Equipment, Net

Property and equipment, net consist of the following:

 

     June 30,
2013		     December 31,
2012		  

Land

    $ 13,419      $ 13,294   

Land improvements

      4,784        3,439   

Buildings

      182,746        180,945   

Equipment under capital leases

      5,310        5,310   

Leasehold improvements

      26,945        24,930   

Computer equipment

      59,013        55,734   

Furniture, fixtures and equipment

      23,713        22,124   

Internally developed software

      13,466        11,039   

Other

      1,099        1,099   

Construction in progress

      46,614        12,487   
  

 

 

    

 

 

  
     377,109        330,401   

Less accumulated depreciation and amortization

      (72,782 )      (61,239 ) 
  

 

 

    

 

 

  

Property and equipment, net

    $ 304,327      $ 269,162