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Property and Equipment
 9 Months Ended
Sep. 30, 2018
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
The following table presents the detail of property and equipment for the periods presented (amounts in thousands):
 
September 30,
2018
 
December 31,
2017
Computer equipment and software
$
113,463

 
$
100,392

Furniture, equipment and building improvements
15,154

 
13,546

 
128,617

 
113,938

Less: accumulated depreciation
(88,829
)
 
(79,233
)
Total
$
39,788

 
$
34,705