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Property and Equipment
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Property and Equipment

5. Property and Equipment

Property and equipment consist of the following:

 

     As of December 31,  
     2015      2014  

Land

   $ 103,280       $ 76,537   

Land improvements

     13,389         8,800   

Buildings

     392,754         298,124   

Building and leasehold improvements

     72,494         45,855   

Equipment under capital leases

     6,467         5,310   

Computer equipment

     91,225         75,990   

Furniture, fixtures and equipment

     51,352         38,162   

Internally developed software

     25,996         20,813   

Other

     1,099         1,099   

Construction in progress

     54,506         20,693   
  

 

 

    

 

 

 
     812,562         591,383   

Less accumulated depreciation and amortization

     (145,079      (113,213
  

 

 

    

 

 

 

Property and equipment, net

   $ 667,483       $ 478,170   
  

 

 

    

 

 

 

Depreciation and amortization expense associated with property and equipment, including assets under capital lease, totaled $34,821, $28,529, and $24,546 for the years ended December 31, 2015, 2014, and 2013, respectively.